CN113728956B - Comprehensive aquaculture net cage for hexagrammos otakii and aquaculture method - Google Patents
Comprehensive aquaculture net cage for hexagrammos otakii and aquaculture method Download PDFInfo
- Publication number
- CN113728956B CN113728956B CN202111166006.2A CN202111166006A CN113728956B CN 113728956 B CN113728956 B CN 113728956B CN 202111166006 A CN202111166006 A CN 202111166006A CN 113728956 B CN113728956 B CN 113728956B
- Authority
- CN
- China
- Prior art keywords
- frame
- fish
- net cage
- seedling
- seaweed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 241001249555 Hexagrammos otakii Species 0.000 title claims abstract description 36
- 238000009360 aquaculture Methods 0.000 title claims abstract description 31
- 244000144974 aquaculture Species 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 15
- 241000251468 Actinopterygii Species 0.000 claims abstract description 116
- 241001474374 Blennius Species 0.000 claims abstract description 37
- 238000003306 harvesting Methods 0.000 claims abstract description 17
- 239000004575 stone Substances 0.000 claims abstract description 13
- 238000012136 culture method Methods 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 241000512259 Ascophyllum nodosum Species 0.000 claims description 19
- 241000195493 Cryptophyta Species 0.000 claims description 17
- 238000009372 pisciculture Methods 0.000 claims description 16
- 241000234427 Asparagus Species 0.000 claims description 15
- 235000005340 Asparagus officinalis Nutrition 0.000 claims description 15
- 241001249573 Hexagrammos Species 0.000 claims description 12
- 241001261506 Undaria pinnatifida Species 0.000 claims description 12
- 238000012258 culturing Methods 0.000 claims description 12
- 230000002354 daily effect Effects 0.000 claims description 9
- 230000003203 everyday effect Effects 0.000 claims description 9
- 238000000926 separation method Methods 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 230000037396 body weight Effects 0.000 claims description 6
- 239000010813 municipal solid waste Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 239000011449 brick Substances 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 230000007613 environmental effect Effects 0.000 claims description 3
- 239000006260 foam Substances 0.000 claims description 3
- 230000037406 food intake Effects 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 3
- 239000004800 polyvinyl chloride Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000002023 wood Substances 0.000 claims description 3
- 208000030852 Parasitic disease Diseases 0.000 claims description 2
- 230000036281 parasite infection Effects 0.000 claims description 2
- 230000004083 survival effect Effects 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 description 4
- 238000009395 breeding Methods 0.000 description 4
- 230000001488 breeding effect Effects 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 241001417941 Hexagrammidae Species 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006957 competitive inhibition Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000012364 cultivation method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 230000002503 metabolic effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
- A01K61/60—Floating cultivation devices, e.g. rafts or floating fish-farms
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G33/00—Cultivation of seaweed or algae
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
- A01K61/10—Culture of aquatic animals of fish
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Zoology (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Cultivation Of Seaweed (AREA)
Abstract
The invention provides a comprehensive aquaculture net cage for hexagrammos otakii and seaweed and an aquaculture method, and relates to the field of net cage aquaculture. The invention comprises a fish culture net cage and an algal reef raft frame, wherein the fish culture net cage comprises a netting, a box frame, a buoyancy device and a sinker; the algal reef raft frame is arranged inside the fish culture net cage and comprises a vertical rod, a bearing frame, a seedling hanging frame, a fixed hook, an artificial reef body, a first lifting rope, a seedling rope, a small falling stone, a second lifting rope and a small floating ball. The bearing frame is positioned at the bottom of the algal reef raft frame, and a plurality of artificial reefs are fixed on the bearing frame; the seedling hanging frame is positioned at the left side and the right side of the middle upper part of the algal reef raft frame, and a plurality of seedling ropes are hung below the seedling hanging frame. The invention also provides a culture method by utilizing the comprehensive culture net cage, six-line fish are cultured in the net cage, and seaweed is cultured on the seedling ropes. Compared with the traditional net cage single culture of the hexagrammos otakii, the method improves the survival rate and the growth speed of the hexagrammos otakii, and simultaneously harvests the seaweed, thereby being an ecological and efficient culture method.
Description
Technical Field
The invention relates to a culture net cage and a culture method adopting the culture net cage, in particular to a comprehensive hexagrammos-seaweed culture net cage and a culture method, and belongs to the technical field of net cage culture.
Background
The hexagrammos otakii is a general term for the fishes belonging to the six grammos, comprises hexagrammos otakii, spotted-head fishes, hexagrammos otakii and the like, has tender meat, delicious taste and high nutritional value, and is deeply popular with the masses. The hexagrammos otakii is reef fishes, inhabits in regions such as offshore rock reefs, seaweed beds and seaweed farms all year round, and along with global climate change, over fishing and aggravation of environmental pollution, the living environment of the hexagrammos otakii is damaged to different degrees, and the quantity of resources is in a descending trend. At present, the construction of marine ranches is actively developed in various places, and the environment of the habitat of the hexagrammos otakii can be improved and the amount of fishery resources can be increased by putting measures such as artificial fish reefs and seaweed bed restoration.
However, in order to meet the increasing consumption demand of people on the six-line fish, the fishing of marine fishery resources is not enough, and the artificial breeding potential of the six-line fish is required to be fully developed. Compared with other culture modes, the net cage culture has the characteristics of low investment, high yield, mobility, quick response and the like, and is one of important ways for developing the development of the culture industry. The six-line fish is used as bottom rocky reef fish, the habitat environment is selected harsher, the traditional net cage culture system is high in biological density and lack of necessary hidden objects, the six-line fish is easily stressed by the external environment, even the phenomenon that individuals are mutually disabled occurs, the culture effect is seriously affected, and the culture success rate is reduced.
Disclosure of Invention
Technical problem to be solved
The invention aims to solve the problems and provide a comprehensive aquaculture net cage for the hexagrammos otakii and the aquaculture method, so as to solve the problems that the hexagrammos otakii is easily stressed by external environment and even has the phenomenon of mutual residue among individuals due to traditional aquaculture in the prior art, so that the aquaculture effect is poor, and the aquaculture success rate is reduced.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a method for comprehensively culturing a six-line fish-seaweed net cage is characterized in that cultured objects are six-line fish and seaweed, the seaweed is kelp, undaria pinnatifida or asparagus, the six-line fish-seaweed net cage needs to be provided with a square fish culturing net cage (1) and a algal reef raft frame (2), the algal reef raft frame (2) is installed inside the fish culturing net cage (1), the size of the algal reef raft frame (2) is slightly smaller than that of the fish culturing net cage (1), the bottom of the algal reef raft frame (2) is 30-60cm away from the bottom of the fish culturing net cage (1), the algal reef raft frame (2) is composed of a vertical rod (2-1), a bearing frame (2-2), a seedling hanging frame (2-4), a fixed hook (2-10), an artificial reef body (2-3), a first lifting rope (2-5), a seedling rope (2-6), a small stone floating ball (2-7), a small lifting rope (2-8) and a second lifting rope (2-9), and the vertical rod (2-1), the bearing frame (2-2), the artificial reef raft frame (4), the artificial reef raft frame and the cultivation objects are welded by the steps of the method comprises the following steps:
s1, setting a net cage: the fish culture net cage (1) is composed of a net (1-1), a cage frame (1-2), buoyancy devices (1-3) and sinkers (1-4), the diameter of a net of the net (1-1) is larger than or equal to 0.6cm, the cage frame (1-2) is arranged on the periphery above the fish culture net cage (1), the buoyancy devices (1-3) are fixed below the cage frame (1-2), the sinkers (1-4) are fixed at 4 bottom corners of the fish culture net cage (1), the fish culture net cage (1) is arranged and installed in a semi-closed bay which is convenient in sea and land traffic, fresh in water quality, free of pollution, smooth in water flow and small in wind wave, and fixed by using iron anchors or wooden pegs, and after an artificial reef body (2-3) is fixed at the bottom of a main body frame of the algal raft frame, the artificial reef body is fixed into the fish culture net cage (1);
s2, seaweed cultivation:
1) And seedling clamping: clamping the seedlings at a distance of 5-8cm, and selecting kelp seedlings with a length of 15-30cm, undaria pinnatifida with a length of 8-15cm or small clusters of asparagus with a length of about 5g for clamping the seedlings;
2) And seedling hanging: fixing a second lifting rope at intervals of 50-80cm on the seedling rope, fixing a small floating ball at the tail end of the second lifting rope, fixing first lifting ropes at two ends of the seedling rope, tying a small drop stone, and connecting the other end of the first lifting rope with the seedling hanging frame;
3) Adjusting a water layer: the depth of a water layer where the seedling rope is located is adjusted by adjusting the positions of connecting points at two ends of the first lifting rope and the second lifting rope, the initial water hanging layer is 50-80cm underwater, and the water depth is gradually increased to 20-30cm in 10 days;
4) And harvesting: harvesting in multiple rounds, namely harvesting partial seaweed along with the enlargement of the seaweed body until the seaweed is completely harvested;
s3, breeding the hexagrammos:
1) And seedling releasing: the selected fish body is complete and has no damage and no parasiticLarge-scale seedlings with strong vitality and regular specification and infected by live insects, the body length is more than 8cm, and the stocking density is 20-50 tails/m 3 ；
2) And feeding the feed: feeding fresh trash fish or artificial mixed feed, wherein the daily feeding amount of the fresh trash fish is 6% -12% of the fish body weight, the daily feeding amount of the artificial mixed feed is 2% -5% of the fish body weight, feeding is carried out for 2-3 times every day, and the feeding amount and the feeding times are adjusted at any time according to the environmental condition and the fish ingestion condition;
3) And box separation and harvesting: adjusting culture density according to the growth condition of fishes, performing box separation culture, timely catching when the fish reaches the commodity specification or other production requirements, and transferring the algal reef raft frame to the outside of the fish culture net cage before box separation and harvesting;
s4, daily management: checking whether the netting is damaged and whether the seedling rope and the artificial reef body fall off every day, and finding out problems and maintaining in time; monitoring the water temperature, salinity, weather and wind wave conditions every day, and observing the growth conditions of the fish and the algae; the attachment condition of the netting by various organisms and miscellaneous algae is regularly checked, and the netting is replaced in time according to the blockage condition of the net meshes and the size of the fish body.
Preferably, the matched seaweed species are selected according to the suitable growing season of different seaweeds.
A six-line fish-seaweed comprehensive aquaculture net cage comprises a fish culture net cage and a algal reef raft frame, wherein the fish culture net cage is square, and the area of the fish culture net cage is set to be 30-40m 2 The depth of the fish-farming net cage is set to be 3-4m;
the algal reef raft frame is arranged inside the fish culture net box, the size of the algal reef raft frame is slightly smaller than that of the fish culture net box, and the distance from the bottom of the algal reef raft frame to the bottom of the fish culture net box is 30-60cm;
the net cage for fish culture comprises a net, a cage frame, a buoyancy device and sinkers, wherein the mesh diameter of the net is larger than or equal to 0.6cm, the cage frame is arranged on the periphery above the net cage for fish culture and is composed of wood boards or polyvinyl chloride hard plastic boards, the width of the cage frame is arranged in a range of 30-60cm, the thickness of the cage frame is arranged in a range of 3-10cm, the buoyancy device is fixed below the cage frame and is made of large-sized foam blocks or old gasoline drums, the sinkers are fixed at 4 bottom corners of the net cage for fish culture and are made of bricks, stones or ceramic blocks.
Preferably, algal reef raft frame includes vertical rod, bears frame, hangs seedling frame, fixed couple, artifical reef body, first lifting rope, seedling rope, little weighing stone, little floater, second lifting rope.
Preferably, perpendicular pole, bear frame, string seedling frame, fixed couple are stainless steel, perpendicular pole, bear the frame, hang seedling frame, fixed couple between constitute the frame through the welding, bear the frame and constitute by a plurality of metal poles, bear the frame and set up in the bottom of algal raft frame.
Preferably, a plurality of artificial reefs are fixed on the bearing frame, and the size of each artificial reef is set to be 0.2-0.4m 2 The artificial reef covers 20% -30% of the area of the bottom of the fish culture net cage.
Preferably, it sets up to two to hang the seedling frame, two it sets up respectively in the same height of the left and right sides of upper portion in the algal reef raft frame to hang the seedling frame and be parallel to each other, a plurality of first lifting rope hangs on hanging the seedling frame, little weight is tied up in first lifting rope end, the seedling rope is used for centre gripping marine alga seedling, and is adjacent a fixed second lifting rope of seedling rope every 50-80cm, little floater sets up in second lifting rope one end, fixed couple sets up the top outer edge at algal reef raft frame.
The invention provides a comprehensive aquaculture net cage for hexagrammos otakii and algae and an aquaculture method, which have the following beneficial effects:
1. according to the invention, the artificial reefs and the seaweed can generate a shadow effect, an obvious trapping effect is generated on the hexagrammos, and natural living environments such as a submarine rock reef, a seaweed bed and the like are simulated in the fish-farming net cage, so that the healthy growth of the hexagrammos is facilitated.
2. The invention gives full play to the advantages of the comprehensive culture mode, and simultaneously harvests the two products of the hexagrammos otakii and the seaweed, thereby fully increasing the economic benefit of cage culture.
3. According to the invention, the metabolic waste excreted by the hexagrammos otakii can be reabsorbed and reused by the seaweed, so that the emission of pollutants is reduced, and the seaweed has a carbon fixation effect, so that the hexagrammos otakii is a green ecological breeding mode.
4. According to the invention, the cultivation of the seaweed can generate a competitive inhibition effect on the attached miscellaneous algae on the netting, so that the netting is not blocked by excessive miscellaneous algae, the water exchange rate inside and outside the net cage is kept, the netting replacement frequency is reduced, and the service life of the netting is prolonged.
Drawings
FIG. 1 is a schematic overall structure diagram of a specific embodiment of the comprehensive hexagrammos otakii-seaweed aquaculture net cage;
FIG. 2 is a schematic view of the overall structure of an embodiment of the fish cage;
fig. 3 is a schematic overall structure of an embodiment of the algal reef raft frame.
In the figure: 1. a fish-farming net cage; 2. an algal reef raft frame; 1-1, netting; 1-2, a box frame; 1-3, a buoyancy device; 1-4, sinkers; 2-1, vertical rods; 2-2, a bearing frame; 2-3, artificial reefs; 2-4, hanging a seedling rack; 2-5, a first lifting rope; 2-6, seedling ropes; 2-7, a small drop stone; 2-8 parts of small floating ball; 2-9, a second lifting rope; 2-10, fixing the hook; 2-11 and seaweed seedlings.
Detailed Description
The embodiment of the invention provides a comprehensive aquaculture net cage for hexagrammos otakii and seaweed.
Referring to fig. 1, 2 and 3, the artificial reef comprises a fish-farming net cage 1 and an algal reef raft frame 2, wherein the fish-farming net cage 1 is square, and the area of the fish-farming net cage 1 is 30-40m 2 The depth of the fish culture net cage 1 is set to be 3-4m;
the algal reef raft frame 2 is installed inside the fish culture net cage 1, the size of the algal reef raft frame 2 is slightly smaller than the fish culture net cage 1, and the distance from the bottom of the algal reef raft frame 2 to the bottom of the fish culture net cage 1 is 30-60cm.
The net cage 1 for fish culture comprises a net 1-1, a cage frame 1-2, buoyancy devices 1-3 and sinkers 1-4, wherein the mesh diameter of the net 1-1 is larger than or equal to 0.6cm, the mesh diameter of the net 1-1 is set to be about 0.6cm at the beginning of fish culture, the net 1-1 with a larger mesh is replaced according to the growth condition of fish bodies in the fish culture process, the cage frame 1-2 is arranged on the periphery above the net cage 1 for fish culture, the cage frame 1-2 is composed of wood boards or polyvinyl chloride hard plastic boards, the width of the cage frame 1-2 is set to be within the range of 30-60cm, the thickness of the cage frame 1-2 is set to be within the range of 3-10cm and used for fixing the shape of the net 1 for fish culture and facilitating the patrol of personnel management, the buoyancy devices 1-3 are fixed below the cage frame 1-2, the buoyancy devices 1-3 are made of large-sized foam blocks or old oil drums, the sinkers 1-4 are fixed at 4 bottom corners of the net cage 1 for fish culture, and the sinkers 1-4 are made of bricks or ceramic blocks.
The algal reef raft frame 2 comprises vertical rods 2-1, a bearing frame 2-2, a seedling hanging frame 2-4, a fixed hook 2-10, an artificial reef body 2-3, a first lifting rope 2-5, a seedling rope 2-6, a small pendant 2-7, a small floating ball 2-8 and a second lifting rope 2-9.
The vertical rod 2-1, the bearing frame 2-2, the seedling hanging frame 2-4 and the fixed hook 2-10 are made of stainless steel materials, the vertical rod 2-1, the bearing frame 2-2, the seedling hanging frame 2-4 and the fixed hook 2-10 form a frame through welding, the frame is welded and fixed to form a main body frame of the algal reef raft frame 2, the bearing frame 2-2 is made of a plurality of metal rods, and the bearing frame 2-2 is arranged at the bottom of the algal reef raft frame 2.
A plurality of artificial reefs 2-3 are fixed on the bearing frame 2-2, and the size of the artificial reefs 2-3 is set to be 0.2-0.4m 2 The artificial reefs 2-3 cover 20% -30% of the area of the bottom of the fish culture net cage 1.
The two seedling hanging frames 2-4 are arranged at the same height, the two seedling hanging frames 2-4 are respectively arranged at the left side and the right side of the middle upper part of the algal reef frame 2, the two seedling hanging frames 2-4 are parallel to each other, a plurality of first hanging ropes 2-5 are hung on the seedling hanging frames 2-4, small falling stones 2-7 are bound at the tail ends of the first hanging ropes 2-5, the seedling ropes 2-6 are used for clamping algal seedlings 2-11, the seedling ropes 2-6 clamping the algal seedlings 2-11 are hung below the seedling hanging frames 2-4 through the first hanging ropes 2-5 and are perpendicular to the seedling hanging frames 2-4, a second hanging rope 2-9 is fixed at intervals of 50-80cm adjacent to the seedling ropes 2-6, the water layer depth of the seedling ropes 2-6 is adjusted by adjusting the connection point positions at the two ends of the first hanging ropes 2-5 and the second hanging ropes 2-9, the small water layer depth of the seedling hanging ropes 2-8 is arranged at one end of the second hanging rope 2-9, the fixed hook 2-10 is arranged above the algal reef frame 2-1, and the algal reef frame 2-10 is hung on the external net cage 1.
Algae are cultured on the seedling ropes 2-6 in a seedling clamping mode, and the algae are one of kelp, undaria pinnatifida or asparagus.
Referring again to fig. 1, 2 and 3, a method for comprehensive cultivation of a six-line fish-seaweed net cage includes the steps of cultivating six-line fish and seaweed, wherein the cultivation objects are the six-line fish and the seaweed, the seaweed is kelp, undaria pinnatifida or asparagus, the six-line fish-seaweed net cage is provided with a square fish cultivation net cage (1) and a algal reef frame (2), the algal reef frame (2) is installed inside the fish cultivation net cage (1), the size of the algal reef frame (2) is slightly smaller than that of the fish cultivation net cage (1), the bottom of the algal reef frame (2) is 30-60cm away from the bottom of the fish cultivation net cage (1), and the algal raft frame (2) is composed of a vertical rod (2-1), a bearing frame (2-2), a seedling hanging frame (2-4), a fixed hook (2-10), an artificial reef (2-3), a first hanging rope (2-5), a seedling rope (2-6), a small stone (2-7), a small floating ball (2-8), a second hanging rope (2-9), and the comprehensive cultivation net cage is composed of the vertical rod (2-10) and the steps of welding the fish cultivation net cage (2-10) and the integrated cultivation net cage (2-10) are as follows:
s1, setting a net cage: the fish farming net cage (1) is composed of a net (1-1), a cage frame (1-2), buoyancy devices (1-3) and sinkers (1-4), the diameter of a net mesh of the net (1-1) is larger than or equal to 0.6cm, the cage frame (1-2) is arranged on the periphery above the fish farming net cage (1), the buoyancy devices (1-3) are fixed below the cage frame (1-2), the sinkers (1-4) are fixed at 4 bottom corners of the fish farming net cage (1), the fish farming net cage (1) is arranged at a semi-closed bay which is convenient in sea and land traffic, fresh in water quality, free of pollution and smooth in water flow but small in wind wave, and is fixed by iron anchors or wooden pegs, and after artificial reefs (2-3) are fixed at the bottom of a main body frame of the algal raft frame, the artificial reefs are fixed into the fish farming net cage (1).
S2, seaweed cultivation:
1) And seedling clamping: clamping the seedlings at a distance of 5-8cm, and selecting kelp seedlings with a length of 15-30cm, undaria pinnatifida with a length of 8-15cm or small clusters of asparagus with a length of about 5g for clamping the seedlings;
2) And hanging seedlings: fixing a second lifting rope 2-9 on the seedling rope 2-6 at intervals of 50-80cm, fixing a small floating ball 2-8 at the tail end of the second lifting rope 2-9, fixing a first lifting rope 2-5 at two ends of the seedling rope 2-6, tying a small falling stone 2-7, and connecting the other end of the first lifting rope 2-5 with a seedling hanging frame 2-4;
3) Adjusting a water layer: the depth of the water layer where the seedling rope 2-6 is positioned is adjusted by adjusting the positions of the connection points of the two ends of the first lifting rope 2-5 and the second lifting rope 2-9, the initial water-hanging layer is 50-80cm underwater, and the water depth is gradually increased to 20-30cm in 10 days;
4. harvesting: and (4) harvesting in multiple rounds, wherein partial seaweed is harvested along with the enlargement of the seaweed body until the seaweed is completely harvested.
S3, breeding the hexagrammos:
1) And seedling releasing: selecting large-scale fish fry with complete fish body, no parasite infection, strong activity, regular specification, body length of more than 8cm, and stocking density of 20-50 fish/m 3 ；
2) And feeding the feed: feeding fresh trash fish or artificial mixed feed, wherein the daily feeding amount of the fresh trash fish is 6% -12% of the fish body weight, the daily feeding amount of the artificial mixed feed is 2% -5% of the fish body weight, feeding is carried out for 2-3 times every day, and the feeding amount and the feeding times are adjusted at any time according to the environmental condition and the fish ingestion condition;
3) And box separation and harvesting: adjusting culture density according to fish growth conditions, performing box-separation culture, timely catching when commodity specifications or other production requirements are met, and transferring the algal reef raft frame 2 to the outside of the fish culture net cage 1 before box separation and harvesting.
S4, daily management: checking whether the netting 1-1 is damaged and the seedling rope 2-6 and the artificial reef 2-3 fall off every day, and timely maintaining when a problem is found; monitoring the water temperature, salinity, weather and wind wave conditions every day, and observing the growth conditions of the fish and the algae; the attachment condition of the netting by various organisms and miscellaneous algae is regularly checked, and the netting is replaced in time according to the blockage condition of the net meshes and the size of the fish body.
According to the method, matched algae types are selected according to suitable growing seasons of different algae, in northern areas of China, the cultivation time of the kelp is from the first ten days of 10 months to the last 6 months of the next year, the cultivation time of the undaria pinnatifida is from the middle ten days of 11 months to the 5 months of the next year, and multiple batches of asparagus can be cultivated in one year; the invention can alternately cultivate the asparagus and the kelp, namely, the kelp cultivation is continued after 1-2 batches of the asparagus are cultivated.
The device and the method are used for carrying out the comprehensive culture test of the fish-farming net cage 1 of the hexagrammos and the large-scale seaweed, and the specific embodiment is as follows:
example 1
From the top ten days in 10 months to the bottom 5 months in 2021 years in 2020, the hexagrammos otakii-seaweed comprehensive aquaculture net cage of the invention is used for carrying out comprehensive aquaculture tests on hexagrammos otakii and kelp, and the dimension of the fish aquaculture net cage 1 is length × width × height =6.0m × 6.0m × 4.0m. When the seedlings are put, the average weight of the Hexagrammos otakii is 13.1g, and the stocking density is 35 tails/m 3 (ii) a The culture density of the kelp is 20 strains per square meter; 2-3 single artificial reefs have the area of 0.25 square meter and are uniformly distributed to cover 25 percent of the area of the bottom of the fish culture net cage 1. When the cultivation is finished, the average weight of the greenling is 58.1g, the survival rate is 92%, and the yield of the kelp is 5.3 kg/square meter. The traditional hexagrammos otakii fish culturing net cage 1 is used for single culture as a control, namely hexagrammos otakii with the same specification and density is cultured in the fish culturing net cage 1 with the same size without the algal reef raft frame 2, after the same culture time, the average weight of the hexagrammos otakii is 49.6g, and the survival rate is 75%.
Example 2
From 8 months to 5 months in 2021 in 2020, the hexagrammos otakii-seaweed comprehensive aquaculture net cage of the invention is used for carrying out comprehensive aquaculture tests of hexagrammos otakii and undaria pinnatifida, and the dimension of the fish aquaculture net cage 1 is length multiplied by width multiplied by height =6.0m multiplied by 4.0m. When the seedlings are put, the average weight of the Hexagrammos otakii is 15.7g, and the stocking density is 35 tails/m 3 (ii) a The cultivation density of the undaria pinnatifida is 20 per square meter; 2-3 single artificial reefs have the area of 0.25 square meter and are uniformly distributed to cover 25 percent of the area of the bottom of the fish culture net cage 1. When the cultivation is finished, the average weight of the greenling is 44.5g, the survival rate is 94%, and the yield of the undaria pinnatifida per square meter is 13.8 kg. The traditional hexagrammos otakii fish culturing net cage 1 is used for single culture as a control, namely hexagrammos otakii with the same specification and density is cultured in the fish culturing net cage 1 with the same size without the algal reef raft frame 2, after the same culture time, the average weight of the hexagrammos otakii is 38.6g, and the survival rate is 79%.
Example 3
2020From 8 months to 2021, 5 months, the comprehensive aquaculture net cage for hexagrammos otakii and kelp of the invention is used for aquaculture tests, and different from the embodiment 1, the method adopts alternate culture mode to cultivate two kinds of algae of gardon asparagus and kelp, wherein the culture time of the gardon asparagus is from 8 months to 11 months of the middle ten days, and the culture time of the kelp is from 11 months of the middle ten days to the next year of 5 months. The fish cage 1 has the dimensions of length × width × height =6.0m × 6.0m × 4.0m. When the seedlings are put, the average weight of the Hexagrammos otakii is 10.3g, and the stocking density is 35 tails/m 3 (ii) a The cultivation density of the asparagus is 20 clusters per square meter, and each cluster is 5g; the culture density of the kelp is 20 strains per square meter; 2-3 single artificial reefs have the area of 0.25 square meter and are uniformly distributed to cover 25 percent of the area of the bottom of the fish culture net cage 1. When the cultivation is finished, the average weight of the hexagrammos otakii is 106.2g, the survival rate is 85%, the yield of the asparagus is 6.7kg per square meter, and the yield of the kelp is 4.6kg per square meter. The traditional hexagrammos otakii fish culturing net cage 1 is used for single culture as a control, namely hexagrammos otakii with the same specification and density is cultured in the fish culturing net cage 1 with the same size without the algal reef raft frame 2, after the same culture time, the average weight of the hexagrammos otakii is 82.8g, and the survival rate is 65%.
The statistics of the culture results of the 3 embodiments show that compared with the single culture of the traditional hexagrammos otakii fish culture net cage 1, the hexagrammos otakii-seaweed comprehensive culture net cage and the culture method thereof can improve the harvest weight of the hexagrammos otakii by 15-28% and improve the survival rate by 15-20%. Meanwhile, economic algae such as kelp, undaria pinnatifida, asparagus and the like are harvested, so that the culture production benefit is further improved.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. A comprehensive aquaculture method of hexagrammos-seaweed net cages is characterized by comprising the following steps: the cultivation object is a six-line fish and seaweed, the seaweed is of the type kelp, undaria pinnatifida or asparagus, the six-line fish-seaweed net cage needs to be provided with a square fish cultivation net cage (1) and a algal reef raft frame (2), the algal reef raft frame (2) is installed inside the fish cultivation net cage (1), the size of the algal reef raft frame (2) is slightly smaller than the fish cultivation net cage (1), the bottom of the algal reef raft frame (2) is 30-60cm away from the bottom of the fish cultivation net cage (1), the algal reef raft frame (2) consists of a vertical rod (2-1), a bearing frame (2-2), a seedling hanging frame (2-4), a fixed hook (2-10), an artificial reef body (2-3), a first hanging rope (2-5), a seedling rope (2-6), a small drop stone (2-7), a small floating ball (2-8), a second hanging rope (2-9), the vertical rod (2-1), the first hanging rope (2-2), the seedling hanging frame (2-4) and the fixed hook (2-10) are welded together through the six-line fish cultivation net cage welding method:
s1, setting a net cage: the fish culture net cage (1) is composed of a net (1-1), a cage frame (1-2), buoyancy devices (1-3) and sinkers (1-4), the diameter of a net of the net (1-1) is larger than or equal to 0.6cm, the cage frame (1-2) is arranged on the periphery above the fish culture net cage (1), the buoyancy devices (1-3) are fixed below the cage frame (1-2), the sinkers (1-4) are fixed at 4 bottom corners of the fish culture net cage (1), the fish culture net cage (1) is arranged and installed in a semi-closed bay which is convenient in sea and land traffic, fresh in water quality, free of pollution, smooth in water flow and small in wind wave, and fixed by using iron anchors or wooden pegs, and after an artificial reef body (2-3) is fixed at the bottom of a main body frame of the algal raft frame, the artificial reef body is fixed into the fish culture net cage (1);
s2, seaweed cultivation:
1) And seedling clamping: clamping the seedlings at a distance of 5-8cm, and selecting kelp seedlings with a length of 15-30cm, undaria pinnatifida with a length of 8-15cm or small clusters of asparagus with a length of about 5g for clamping the seedlings;
2) And hanging seedlings: a second lifting rope (2-9) is fixed on the seedling rope (2-6) at intervals of 50-80cm, a small floating ball (2-8) is fixed at the tail end of the second lifting rope (2-9), first lifting ropes (2-5) are fixed at two ends of the seedling rope (2-6), a small drop stone (2-7) is tied, and the other ends of the first lifting ropes (2-5) are connected with a seedling hanging frame (2-4);
3) Adjusting a water layer: the water layer depth of the seedling rope (2-6) is adjusted by adjusting the connecting point position of the two ends of the first lifting rope (2-5) and the second lifting rope (2-9), the initial water-hanging layer is 50-80cm underwater, and the water depth is gradually increased to 20-30cm in 10 days;
4) And harvesting: harvesting in multiple rounds, namely harvesting partial seaweed along with the enlargement of the seaweed body until the seaweed is completely harvested;
s3, culturing the hexagrammos otakii:
1) And seedling releasing: selecting large-scale fish fry with complete fish body, no parasite infection, strong activity, regular specification, body length of more than 8cm, and stocking density of 20-50 fish/m 3 ；
2) And feeding the feed: feeding fresh trash fish or artificial mixed feed, wherein the daily feeding amount of the fresh trash fish is 6% -12% of the fish body weight, the daily feeding amount of the artificial mixed feed is 2% -5% of the fish body weight, feeding is carried out for 2-3 times every day, and the feeding amount and the feeding times are adjusted at any time according to the environmental condition and the fish ingestion condition;
3) And box separation and harvesting: adjusting culture density according to the growth condition of fishes, performing box separation culture, timely catching when the fish reaches the commodity specification or other production requirements, and transferring the algal reef raft frame (2) to the outside of the fish culture net cage (1) before box separation and harvesting;
s4, daily management: checking whether the netting (1-1) is damaged and whether the seedling rope (2-6) and the artificial reef body (2-3) fall off every day, and finding out problems and maintaining in time; monitoring the water temperature, salinity, weather and wind wave conditions every day, and observing the growth conditions of the fish and the algae; the attachment condition of the netting (1-1) by various organisms and miscellaneous algae is regularly checked, and the netting (1-1) is replaced in time according to the blockage condition of meshes and the size of a fish body.
2. The comprehensive hexagrammos-seaweed cage culture method according to claim 1, characterized in that: the matched algae species are selected according to the suitable growing seasons of different algae.
3. A comprehensive aquaculture net cage for hexagrammos ocellatus-seaweed, which is suitable for the comprehensive aquaculture method of hexagrammos ocellatus-seaweed net cages according to any one of claims 1-2, and comprises a fish aquaculture net cage (1) and a algal reef raft frame (2), and is characterized in that: the fish culture net cage (1) is square, and the area of the fish culture net cage (1) is set to be 30-40m 2 The depth of the fish culture net cage (1) is set to be 3-4m;
the algal reef raft frame (2) is installed inside the fish-farming net cage (1), the size of the algal reef raft frame (2) is slightly smaller than that of the fish-farming net cage (1), and the distance from the bottom of the algal reef raft frame (2) to the bottom of the fish-farming net cage (1) is 30-60cm;
the fish culture net cage (1) comprises a net (1-1), a cage frame (1-2), a buoyancy device (1-3) and a sinker (1-4), the mesh diameter of the net (1-1) is larger than or equal to 0.6cm, the cage frame (1-2) is arranged on the periphery above the fish culture net cage (1), the cage frame (1-2) is composed of wood plates or polyvinyl chloride hard plastic plates, the width of the cage frame (1-2) is arranged in the range of 30-60cm, the thickness of the cage frame (1-2) is arranged in the range of 3-10cm, the buoyancy device (1-3) is fixed below the cage frame (1-2), the buoyancy device (1-3) is made of large-sized foam blocks or old gasoline drums, the sinker (1-4) is fixed at 4 bottom corners of the fish culture net cage (1), and the sinker (1-4) is made of bricks, stones or ceramic blocks.
4. The comprehensive hexagrammos-seaweed aquaculture net cage as claimed in claim 3, characterized in that: the algal reef raft frame (2) comprises a vertical rod (2-1), a bearing frame (2-2), a seedling hanging frame (2-4), a fixed hook (2-10), an artificial reef body (2-3), a first lifting rope (2-5), a seedling rope (2-6), a small falling stone (2-7), a small floating ball (2-8) and a second lifting rope (2-9).
5. The comprehensive hexagrammos-seaweed aquaculture net cage as claimed in claim 4, characterized in that: the vertical rod (2-1), the bearing frame (2-2), the seedling hanging frame (2-4) and the fixed hook (2-10) are made of stainless steel, the vertical rod (2-1), the bearing frame (2-2), the seedling hanging frame (2-4) and the fixed hook (2-10) are welded to form a frame, the bearing frame (2-2) is composed of a plurality of metal rods, and the bearing frame (2-2) is arranged at the bottom of the algal reef raft frame (2).
6. The comprehensive hexagrammos-seaweed aquaculture net cage as claimed in claim 4, characterized in that: a plurality of artificial reefs (2-3) are fixed on the bearing frame (2-2), and the sizes of the artificial reefs (2-3) are set to be 0.2-0.4m 2 The artificial reef body (2-3) covers20-30% of the area of the bottom of the fish-farming net cage (1).
7. The comprehensive hexagrammos-seaweed aquaculture net cage according to claim 4, characterized in that: it sets up to two to hang seedling frame (2-4), two it sets up respectively in the same height of the left and right sides of upper portion in algal reef raft frame (2) to hang seedling frame (2-4) parallel to each other, a plurality of first lifting rope (2-5) hang on hanging seedling frame (2-4), little sinker (2-7) are binded in first lifting rope (2-5) end, seedling rope (2-6) are used for centre gripping seaweed seedling (2-11), and are adjacent seedling rope (2-6) every fixed second lifting rope (2-9) of 50-80cm, little floater (2-8) set up in second lifting rope (2-9) one end, fixed couple (2-10) set up the top outer edge in algal raft frame (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111166006.2A CN113728956B (en) | 2021-09-30 | 2021-09-30 | Comprehensive aquaculture net cage for hexagrammos otakii and aquaculture method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111166006.2A CN113728956B (en) | 2021-09-30 | 2021-09-30 | Comprehensive aquaculture net cage for hexagrammos otakii and aquaculture method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113728956A CN113728956A (en) | 2021-12-03 |
| CN113728956B true CN113728956B (en) | 2023-03-24 |
Family
ID=78726002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111166006.2A Active CN113728956B (en) | 2021-09-30 | 2021-09-30 | Comprehensive aquaculture net cage for hexagrammos otakii and aquaculture method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113728956B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101062280B1 (en) * | 2010-12-07 | 2011-09-14 | 대한민국 | Construction method of rope net using natural fiber for making a seaweed forest |
| CN105165680A (en) * | 2015-09-14 | 2015-12-23 | 上海海洋大学 | Large yellow croaker-asparagus integrated culture matching mode |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101669450B (en) * | 2009-03-31 | 2011-11-30 | 上海海洋大学 | Hang-cultivating high-density ecological shrimp cultivating and water purifying device |
| CN204070056U (en) * | 2014-09-26 | 2015-01-07 | 上海海洋大学 | A kind of algae fish mixed breed net cage |
| CN204598913U (en) * | 2015-01-19 | 2015-09-02 | 刘艺琼 | One main laver seedling rearing room |
| CN205241351U (en) * | 2015-11-16 | 2016-05-18 | 水生藻安生物科技（武汉）有限公司 | Additional rail and degree of depth adjustable benthophyte net bed laying device |
| CN105746330B (en) * | 2016-01-29 | 2019-03-29 | 山东省海洋生物研究院 | A kind of pond breeding method of asparagus |
| CN107926774B (en) * | 2017-12-08 | 2020-12-08 | 山东省海洋生物研究院 | Hexagrammos otakii wild parent fish pond net cage cultivation method |
| GB2581979B (en) * | 2019-03-05 | 2021-12-15 | Welch Martin | Cleaner fish habitat support apparatus |
| CN109984071B (en) * | 2019-03-29 | 2022-02-18 | 山东省海洋生物研究院 | Combined artificial reef suitable for algae and fish polyculture and use method thereof |
| DK180494B1 (en) * | 2019-05-28 | 2021-05-27 | Tari Spf | Seaweed shelter for lumpfish |
-
2021
- 2021-09-30 CN CN202111166006.2A patent/CN113728956B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101062280B1 (en) * | 2010-12-07 | 2011-09-14 | 대한민국 | Construction method of rope net using natural fiber for making a seaweed forest |
| CN105165680A (en) * | 2015-09-14 | 2015-12-23 | 上海海洋大学 | Large yellow croaker-asparagus integrated culture matching mode |
Non-Patent Citations (2)
| Title |
|---|
| 大型经济海藻与海参筏式轮套养技术;林炫锋等;《科学养鱼》(第12期);第18-22页 * |
| 海水健康养殖研究进展;张彩明等;《中国渔业质量与标准》(第03期);第58-59页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113728956A (en) | 2021-12-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104663552B (en) | A kind of ecological remediation type oceanic pasture and construction method thereof | |
| CN201938196U (en) | Device for breeding sea cucumbers in bathyal half-hanging floating raft and cage | |
| CN105123565B (en) | A kind of cultchless oyster Deepwater Open Sea cultural method and device | |
| CN107509671B (en) | Breeding method and device for cleaning pearl shells and shellfish cage attachments by using siganus guttatus | |
| CN109122438B (en) | Purple sea hybrid scallop bottom-sowing and breeding method | |
| CN106719220A (en) | A kind of building method of the aquafarm with the unrestrained function that disappears | |
| CN101720694A (en) | Device and method for breeding sea cucumbers in bathyal half-hanging floating rafts and cages | |
| CN109618986B (en) | Seawater factory workshop ecological breeding technology | |
| KR101632849B1 (en) | Spat collection method of Scapharca subcrenata | |
| KR101286078B1 (en) | Submerged cage facility for sea cucumber | |
| CN107926774B (en) | Hexagrammos otakii wild parent fish pond net cage cultivation method | |
| CN101720692A (en) | Method for breeding sea cucumbers in bathyal half-hanging floating rafts and cages | |
| CN101019516B (en) | Intermediate net-cage culturing process of artificial pearl shell fry | |
| CN108207728A (en) | Ecological big depth of water fish shelter net cage integration aquafarm and system and method | |
| CN110140680B (en) | Bottom sowing culture method for pinctada fucata | |
| CN113728956B (en) | Comprehensive aquaculture net cage for hexagrammos otakii and aquaculture method | |
| CN215454824U (en) | Curtain type juvenile stichopus japonicus outdoor large-scale seedling picking facility | |
| CN113711959B (en) | Ecological proliferation method of pearl shells on remote sea island | |
| CN216088323U (en) | Greenhouse culture system of micropterus salmoides | |
| CN211832418U (en) | Odontobutis obscura nest device | |
| Macintosh | Aquaculture in coastal lagoons | |
| CN113940299A (en) | Method for restoring estuary sea area fishery resources | |
| CN212212242U (en) | Marine floated eel grass does not have soil and transplants device | |
| TW201707562A (en) | Three-dimensional sea cucumber culture system and method thereof increasing the unit culture quantity and the yield of the sea cucumbers | |
| CN216874528U (en) | Ecological multiplication net cage for pearl shells on remote sea island |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |