CN101491221A - Seashell and algae shallow-sea ecology rearing device and method - Google Patents
Seashell and algae shallow-sea ecology rearing device and method Download PDFInfo
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- CN101491221A CN101491221A CNA2009100369265A CN200910036926A CN101491221A CN 101491221 A CN101491221 A CN 101491221A CN A2009100369265 A CNA2009100369265 A CN A2009100369265A CN 200910036926 A CN200910036926 A CN 200910036926A CN 101491221 A CN101491221 A CN 101491221A
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- 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
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- 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
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Abstract
The invention discloses a device for ecologically culturing seashell and alga in shallow sea and a method thereof. The device comprises a seashell culture raft and an alga culture raft. The seashell culture raft comprises at least two paralleled floating ropes; buoys are arranged on the floating ropes and are connected with the floating ropes through floating ties; the two ends of each floating rope are fixed by underwater fixing mechanisms; the alga culture raft made by at least one culture curtain is arranged above each two adjacent floating ropes; the adjacent culture curtains are fixed by floating bamboo perpendicular to the floating ropes; and the two ends of the floating bamboo are connected with the floating ties. The device can be used to carry out the hanging culture of the seashell on the floating ropes and carry out the culture of the alga in the culture curtains floating above the floating ropes, thereby realizing the composite culture of the seashell and the alga. The device and the method have the advantages of reducing the culture cost, improving the culture efficiency and culture space utilization factor, and having good effects on the comprehensive use of shallow sea waters, the improvement of the water environment and the prevention and control of diseases.
Description
Technical field
The invention belongs to aquaculture field, be specifically related to a kind of water culture facilities and ecologic breeding technology, relate in particular to a kind of shellfish and algae shallow-sea ecology rearing device and method.
Background technology
The shellfish culture method mainly contains methods such as bottom sowing culture, inserting column breed, long line culture, fixed mount breed at present; The algal culture method mainly contains breeding way such as long line culture, fixed mount breed and raft culture.These traditional cultural method per mu yields are lower, and mostly are the separately breed of single kind, and shared marine site is bigger.
Summary of the invention
The object of the present invention is to provide a kind of shellfish and algae shallow-sea ecology rearing device.
The present invention also aims to provide a kind of method of utilizing said apparatus to carry out shallow-sea ecology rearing.
For reaching first purpose of the present invention, shellfish provided by the invention and algae shallow-sea ecology rearing device, comprise shellfish culture raft and algal culture raft, described shellfish culture raft comprises at least two floating well ropes that parallel, described floating well rope is provided with float, described float is connected by floating system with floating well rope, the two ends of described floating well rope are fixed by fixed mechanism under water, per two adjacent floating well ropes top is provided with by at least one width of cloth cultures the algal culture raft that curtain is formed by connecting, adjacent breed curtain is by fixing with the perpendicular floating bamboo of floating well rope, the two ends of floating bamboo with floating be to be connected.
Float on the shellfish culture raft, floating well rope and under water fixed mechanism be that shellfish, algae are cultured community installations, stay shellfish after the algae results and prolong the rope raft and proceed Pacific oyster and culture, promptly this breeding facility has shellfish simultaneously, the algae cover is supported and the function of alternate culture.
In apparatus of the present invention, be connected with fixed mechanism under water on the floating well rope of shellfish culture raft, also be provided with float on the floating well rope of shellfish culture raft, and be connected with floating well rope by floating system, the algal culture raft is connected with the floating system of shellfish culture raft with horizontal rope by floating bamboo, and by float and under water the active force between the fixed mechanism shellfish culture raft and algal culture raft are fixed in needed height under the sea.
In the algal culture raft, described breed curtain is provided with and floats the horizontal rope that bamboo parallels, and the two ends of described horizontal rope tie up to floating fastening.
Described breed curtain also is provided with the seedling rope along floating well rope direction, and the two ends of seedling rope are fixed by the floating bamboo that is used to clamp adjacent breed curtain, and the two ends of described floating bamboo are connected floating fastening relative on the adjacent floating well rope.
In this device, the spacing of adjacent floating well rope is 2.5～3m.
Further, also be provided with and the perpendicular horizontal well rope that is connected of floating well rope, the spacing of adjacent horizontal well rope is 10～20m, and the two ends of described horizontal well rope are also fixed by fixed mechanism under water.
Described fixed mechanism under water comprises short wooden stake, short wooden stake cable and weighs down thing, described short wooden stake cable one end connection short wooden stake, and the other end connects culturing raft, also is tied with the bob thing on the short wooden stake cable.
Described short wooden stake is poplar short wooden stake or willow short wooden stake or pine short wooden stake, and described short wooden stake cable is a polyethylene rope, and described bob thing is dropstone or cement block.
Described length of peg cable is 2～4: 1 with depth of water ratio.
Second purpose of the present invention realizes in the following manner: a kind of shellfish and algae shallow-sea ecology rearing method, employing are hung oneself at floating well rope and are supported shellfish, put algae in a suitable place to breed in the breed curtain above floating on floating well rope, realize the complex culture of shellfish, algae.
Said method specifically comprises:
(1) shellfish is thrown seedling, and every interval 25～35cm hangs and supports shellfish 1 string on floating well rope, and the long 1.0～1.5m of every string shellfish establishes 8～12 shells of collecting seedling on every string, put 12～20 spats in each shell, and shellfish string spacing is 25～30cm.
(2) algae is thrown seedling, and throwing seedling time and shellfish are synchronous, and every width of cloth is cultured in the curtain and mainly is made up of 8～10 folder seedling ropes, and per 15～20cm folder seedling is 1 bunch on the described seedling rope, and seedling rope spacing is 25～35cm.
(3) shellfish and algal grown and results, after growth a period of time, the results algae stays the breed that shellfish culture raft carries out the second half section earlier.
Ecologic breeding principle of the present invention: by the complex culture of shellfish, algae, reach and culture culture efficiency mutually beneficial on the kind parabiosis, algae is by O that photosynthesis produced
2Replenish in the water layer to satisfy the needs that animal populations such as shellfish are breathed; And the CO that the shellfish respiration is discharged
2Can be algae again photosynthetic needs are provided, its a large amount of excreta can increase the seawater organic nutrient, promotes the breeding of algal grown and phytoplankton, has purified water quality; Abundant phytoplankton and algae chip promote growth again for animals such as shellfish provide natural bait.
Advantage of the present invention:
(1) reduced aquaculture cost, improved culture benefit and cultured space availability ratio;
(2) to the comprehensive utilization of shallow sea water body, improve aspects such as water environment and disease control good action arranged;
(3) circulation of the matter and energy in the cultivating system reaches relative equilibrium, and the environmental effect of breeding production is good.
Figure of description
Fig. 1 is the stereoeffect schematic diagram of the embodiment of the invention 1;
Fig. 2 is the local enlarged diagram of Fig. 1;
Fig. 3 is a plane figure of the present invention.
Embodiment
Shown in accompanying drawing 1-3, shellfish provided by the invention and algae shallow-sea ecology rearing device, comprise shellfish culture raft and algal culture raft, wherein, shellfish culture raft comprises 13 floating well ropes 1 that parallel, and adjacent floating well rope spacing is 2.5m, the two ends of floating well rope are fixed by fixed mechanism under water, also be provided with 11 with the perpendicular horizontal well rope 12 that is connected of floating well rope, adjacent horizontal well rope spacing is 10m, the two ends of horizontal well rope are also fixed by fixed mechanism under water.
Shellfish culture raft is positioned at 0.8m place, underwater, and its floating well rope is long to be slightly to be 2000 by 100m, and every 3m establishes a float 5 on the floating well rope 1, float 5 and floating well rope 1 by floating be 7 to be connected, the distance of float 5 and floating well rope 1 is 1.5m.
Per two adjacent floating well ropes top is provided with by 3 width of cloth cultures the algal culture raft that curtain is formed by connecting along floating well rope direction, and adjacent breed curtain is by fixing with the perpendicular floating bamboo 6 of floating well rope, and the two ends of floating bamboo 6 are 7 to be connected with floating.
Every width of cloth is cultured the interior every 3m of curtain and is established a horizontal rope 9, and horizontal rope 9 parallels with floating bamboo 6, and horizontal rope slightly is 220, horizontal rope 9 two ends are connected with float 5, culture in the curtain and are provided with seedling rope 8 along floating well rope direction, and seedling rope 8 is positioned at underwater 35cm, the seedling rope slightly is 120, and the two ends of seedling rope are fixed on the floating bamboo 6 behind the folder seedling.
In device of the present invention, be connected with float and fixed mechanism under water on the floating well rope, by the active force between the two shellfish culture raft and algal culture raft are fixed in the needed height in underwater, fixed mechanism mainly is made up of polyethylene rope 4 and poplar short wooden stake 2 under water, rope one end connects the floating well rope 1 of shellfish culture raft, the other end is connected and fixed on the poplar short wooden stake 2 in seabed, on rope, also be tied with dropstone 3, wherein rope lengths is 4: 1 with depth of water ratio, the length of poplar short wooden stake is 4m, diameter is 16cm, and lanyard is in 1/3 place of poplar short wooden stake lower end, and the poplar short wooden stake is squeezed into 0.8m under the seabed.
Float on the shellfish culture raft after compound, floating well rope and under water fixed mechanism be that shellfish, algae are cultured community installations, only stay shellfish culture raft after the algae results and proceed too shellfish culture, promptly this complex culture facility has shellfish simultaneously, the algae cover is supported and the function of alternate culture.
With the shellfish is that Pacific oyster and algae are that asparagus is an example, also desirable other shellfish and algae, and employing is hung oneself at floating well rope and is supported Pacific oyster 11, puts asparagus 10 in a suitable place to breed in the breed curtain above floating on floating well rope, realizes the complex culture of shellfish, algae.
Utilize said apparatus to culture Pacific oyster and asparagus:
Pacific oyster is thrown seedling: throwing the seedling time is annual front and back in January, and the throwing seedling-growing method is supported oyster 1 for every 25cm on the floating well rope hangs and gone here and there every string oyster 1.0m, if 8 shells of collecting seedling, 12 spats of each shell, oyster string spacing 25cm, floating well rope spacing is 2.5m, and the raft body sinks down into dried up 0.8m place.
Asparagus is thrown seedling: throwing seedling time and oyster are synchronous, promptly also be annual front and back in January, every raft is made up of 8 folder seedling ropes, seedling rope spacing is 25cm, 1 bunch of every 15cm folder seedling, one length is arranged is that the horizontal rope of 3.5m links to each other to every 3m on the seedling rope, and its two ends are tied to the floating of oyster culture raft and fasten, the seedling rope is a dried up 35cm.
Growing state: at Nanhai District, the breed water temperature in early stage behind the throwing seedling is lower, and growth rate is slower; Later stage, growth rate was obviously accelerated along with water temperature increases.Oyster generally passes through many breed half a year, can gather in the crops to annual September, and high monthly growth by the 9.0～10.0mm of shell, survival rate is between 80%～95%; Asparagus is generally gathered in the crops in annual May, the long average daily 9.0～10.5mm that increases of frond, and survival rate can reach more than 90%.
Results and benefit: untie together with lace curtaining during the asparagus results, stay the breed that the oyster culture raft carries out the second half section.Adopt this cultural technique, per unit area yield improves more than 25%, and wherein the Pacific oyster per mu yield can reach more than the 2250kg, and the per mu yield of asparagus can reach more than the 800kg, and aquaculture cost reduces about 30%, and economic benefit improves more than 20%.
Shellfish provided by the invention and algae shallow-sea ecology rearing device, comprise shellfish culture raft and algal culture raft, wherein, shellfish culture raft comprises 15 floating well ropes that parallel, and adjacent floating well rope spacing is 3.0m, and the two ends of floating well rope are fixed by fixed mechanism under water, also be provided with 11 with the perpendicular horizontal well rope that is connected of floating well rope, adjacent horizontal well rope spacing is 15m, and horizontal well rope slightly is 2400, and the two ends of horizontal well rope are also fixed by fixed mechanism under water.
Shellfish culture raft is positioned at 1.2m place, underwater, and its floating well rope is long slightly to be 1800 for 150m, and every 5m establishes a float on the floating well rope, and float is connected by floating system with floating well rope, and the distance of float and floating well rope is 1.2m.
Per two adjacent floating well ropes top is provided with by 3 width of cloth cultures the algal culture raft that curtain is formed by connecting along floating well rope direction, and adjacent breed curtain is by fixing with the perpendicular floating bamboo of floating well rope, the two ends of floating bamboo with floating be to be connected.
Every width of cloth is cultured the interior every 5m of curtain and is established a horizontal rope, and horizontal rope parallels with floating bamboo, and horizontal rope slightly is 200, horizontal rope two ends are connected with float, culture in the curtain and are provided with the seedling rope along floating well rope direction, and the seedling rope is positioned at underwater 30cm, the seedling rope slightly is 120, and the two ends of seedling rope are fixed on the floating bamboo behind the folder seedling.
In device of the present invention, be connected with float and fixed mechanism under water on the floating well rope of shellfish culture raft, by the active force between the two shellfish culture raft and algal culture raft are fixed in the needed height in underwater, fixed mechanism mainly is made up of short wooden stake cable and pine short wooden stake under water, short wooden stake cable one end connects the floating well rope of shellfish culture raft, the other end is connected and fixed on the pine short wooden stake in seabed, also is tied with cement block on the cable of fainting, and the cable length of wherein fainting is 2.5: 1 with depth of water ratio.
Float on the shellfish culture raft after compound, floating well rope and under water fixed mechanism be that shellfish, algae are cultured community installations, only stay shellfish culture raft after the algae results and proceed shellfish culture, promptly this complex culture facility has shellfish simultaneously, the algae cover is supported and the function of alternate culture.
With the shellfish is that Pacific oyster and algae are that asparagus is an example, and also desirable other shellfish and algae are adopted at the floating well rope foster Pacific oyster of hanging oneself, and put asparagus in a suitable place to breed in the breed curtain above floating on floating well rope, the complex culture of realization shellfish, algae.
Utilize said apparatus to culture Pacific oyster and asparagus:
Pacific oyster is thrown seedling: throws the seedling time and be before and after annual January, throw seedling-growing method and be the floating well rope of every 30cm and hang and support oyster 1 string, and every string oyster 1.2m, 10 shells of collecting seedling, 15 spats of each shell, oyster are gone here and there spacing 30cm; Floating well rope spacing is 3m, and the raft body sinks down into dried up 1.5m place.
Asparagus is thrown seedling: throwing seedling time and oyster are synchronous, promptly also be annual front and back in January, every raft is made up of 10 folder seedling ropes, seedling rope spacing is 30cm, 1 bunch of every 18cm folder seedling, one length is arranged is that the horizontal rope of 3.5m links to each other to every 5m on the seedling rope, and its two ends are tied to the floating of oyster culture raft and fasten, the seedling rope is a dried up 30cm.
Growing state: at Nanhai District, the breed water temperature in early stage behind the throwing seedling is lower, and growth rate is slower; Later stage, growth rate was obviously accelerated along with water temperature increases.Oyster generally passes through many breed half a year, can gather in the crops to annual September, and high monthly growth by the 9.0～10.0mm of shell, survival rate is between 80%～95%; Asparagus is generally gathered in the crops in annual May, the long average daily 9.0～10.5mm that increases of frond, and survival rate can reach more than 90%.
Results and benefit: untie together with lace curtaining during the asparagus results, stay the breed that the oyster culture raft carries out the second half section.Adopt this cultural technique, per unit area yield improves more than 25%, and wherein the Pacific oyster per mu yield can reach 2250kg, and the per mu yield of asparagus can reach more than the 800kg, and aquaculture cost reduces about 30%, and economic benefit improves more than 20%.
Embodiment 3
Shellfish provided by the invention and algae shallow-sea ecology rearing device, comprise shellfish culture raft and algal culture raft, wherein, shellfish culture raft comprises 15 floating well ropes that parallel, and adjacent floating well rope spacing is 2.8m, and the two ends of floating well rope are fixed by fixed mechanism under water, also be provided with 11 with the perpendicular horizontal well rope that is connected of floating well rope, adjacent horizontal well rope spacing is 20m, and horizontal well rope slightly is 2400, and the two ends of horizontal well rope are also fixed by fixed mechanism under water.
Shellfish culture raft is positioned at 1.5m place, underwater, and its floating well rope is long slightly to be 1600 for 200m, and every 4m establishes a float on the floating well rope, and float is connected by floating system with floating well rope, and the distance of float and floating well rope is 1.5m.
Per two adjacent floating well ropes top is provided with by 4 width of cloth cultures the algal culture raft that curtain is formed by connecting along floating well rope direction, and adjacent breed curtain is by fixing with the perpendicular floating bamboo of floating well rope, the two ends of floating bamboo with floating be to be connected.
Every width of cloth is cultured the interior every 4m of curtain and is established a horizontal rope, and horizontal rope parallels with floating bamboo, and horizontal rope slightly is 180, horizontal rope two ends are connected with float, culture in the curtain and are provided with the seedling rope along floating well rope direction, and the seedling rope is positioned at underwater 35cm, the seedling rope slightly is 100, and the two ends of seedling rope are fixed on the floating bamboo behind the folder seedling.
In apparatus of the present invention, be connected with float and fixed mechanism under water on the floating well rope of shellfish culture raft, by the active force between the two shellfish culture raft and algal culture raft are fixed in the needed height in underwater, fixed mechanism mainly is made up of short wooden stake cable and willow short wooden stake under water, short wooden stake cable one end connects the floating well rope of shellfish culture raft, the other end is connected and fixed on the willow short wooden stake in seabed, on the short wooden stake cable, also be tied with dropstone, wherein length of peg cable is 2: 1 with depth of water ratio, the length of willow short wooden stake is 3m, diameter is 12cm, and the short wooden stake cable is fixed in 1/4 place of a lower end, and the willow short wooden stake is squeezed into seabed 0.5m.
Float on the shellfish culture raft after compound, floating well rope and under water fixed mechanism be that shellfish, algae are cultured community installations, only stay shellfish culture raft after the algae results and proceed shellfish culture, promptly this complex culture facility has shellfish simultaneously, the algae cover is supported and the function of alternate culture.
With the shellfish is that Pacific oyster and algae are that asparagus is an example, and also desirable other shellfish and algae are adopted at the floating well rope foster Pacific oyster of hanging oneself, and put asparagus in a suitable place to breed in the breed curtain above floating on floating well rope, the complex culture of realization shellfish, algae.
Utilize said apparatus to culture Pacific oyster and asparagus:
Pacific oyster is thrown seedling: throws the seedling time and be before and after annual January, throw seedling-growing method and be the floating well rope of every 30cm and hang and support oyster 1 string, and every string oyster 1.2m, 10 shells of collecting seedling, 12～20 spats of each shell, oyster are gone here and there spacing 25～30cm; Floating well rope spacing is 3m, and the raft body sinks down into dried up 0.8～1.5m place.
Asparagus is thrown seedling: throwing seedling time and oyster are synchronous, promptly also be annual front and back in January, every raft is made up of 8 folder seedling ropes, seedling rope spacing is 30cm, 1 bunch of every 20cm folder seedling, one length is arranged is that the horizontal rope of 3.5m links to each other to every 5m on the seedling rope, and its two ends are tied to the floating of oyster culture raft and fasten, the seedling rope is a dried up 30cm.
Growing state: at Nanhai District, the breed water temperature in early stage behind the throwing seedling is lower, and growth rate is slower; Later stage, growth rate was obviously accelerated along with water temperature increases.Oyster generally passes through many breed half a year, can gather in the crops to annual September, and high monthly growth by the 9.0～10.0mm of shell, survival rate is between 80%～95%; Asparagus is generally gathered in the crops in annual May, the long average daily 9.0～10.5mm that increases of frond, and survival rate can reach more than 90%.
Results and benefit: untie together with lace curtaining during the asparagus results, stay the breed that the oyster culture raft carries out the second half section.Adopt this cultural technique, per unit area yield improves more than 25%, and wherein the Pacific oyster per mu yield can reach 2250kg, and the per mu yield of asparagus can reach more than the 800kg, and aquaculture cost reduces about 30%, and economic benefit improves more than 20%.
Above embodiment only is used to set forth the present invention, does not represent protection scope of the present invention, and other people prompting according to the present invention all belongs to protection scope of the present invention to nonessential modification and adjustment that device and method of the present invention carries out.
Claims (10)
1, a kind of shellfish and algae shallow-sea ecology rearing device, it is characterized in that, comprise shellfish culture raft and the algal culture raft that is positioned at its top, described shellfish culture raft comprises at least two floating well ropes that parallel, described floating well rope is provided with float, described float is connected by floating system with floating well rope, the two ends of described floating well rope are fixed by fixed mechanism under water, per two adjacent floating well ropes top is provided with by at least one width of cloth cultures the algal culture raft that curtain is formed by connecting, adjacent breed curtain is by fixing with the perpendicular floating bamboo of floating well rope, the two ends of floating bamboo with floating be to be connected.
According to described shellfish of claim 1 and algae shallow-sea ecology rearing device, it is characterized in that 2, described breed curtain is provided with and floats the horizontal rope that bamboo parallels, the two ends of described horizontal rope tie up to floating fastening.
According to claim 1 or 2 described shellfish and algae shallow-sea ecology rearing devices, it is characterized in that 3, described breed curtain also is provided with the seedling rope along floating well rope direction, the two ends of seedling rope are fixed on the floating bamboo.
According to described shellfish of claim 1 and algae shallow-sea ecology rearing device, it is characterized in that 4, the spacing of adjacent floating well rope is 2.5～3m.
According to described shellfish of claim 4 and algae shallow-sea ecology rearing device, it is characterized in that 5, also be provided with and the perpendicular horizontal well rope that is connected of floating well rope, the spacing of adjacent horizontal well rope is 10～20m, the two ends of described horizontal well rope are also fixed by fixed mechanism under water.
According to described shellfish of claim 1 and algae shallow-sea ecology rearing device, it is characterized in that 6, described fixed mechanism under water comprises short wooden stake, short wooden stake cable and weighs down thing, described short wooden stake cable one end connection short wooden stake, the other end connects culturing raft, also is tied with the bob thing on the short wooden stake cable.
According to described shellfish of claim 6 and algae shallow-sea ecology rearing device, it is characterized in that 7, described short wooden stake is poplar short wooden stake or willow short wooden stake or pine short wooden stake, described short wooden stake cable is a polyethylene rope, and described bob thing is dropstone or cement block.
According to described shellfish of claim 6 and algae shallow-sea ecology rearing device, it is characterized in that 8, described length of peg cable is 2～4: 1 with depth of water ratio.
9, a kind of shellfish and algae shallow-sea ecology rearing method of utilizing the described device of claim 1 is characterized in that, employing is hung oneself at floating well rope and supported shellfish, puts algae in a suitable place to breed in the breed curtain above floating on floating well rope, realizes the complex culture of shellfish, algae.
10, shellfish according to claim 9 and algae shallow-sea ecology rearing method is characterized in that, comprising:
(1) shellfish is thrown seedling, and every interval 25～35cm hangs and supports shellfish 1 string on floating well rope, and the long 1.0～1.5m of every string shellfish establishes 8～12 shells of collecting seedling on every string, put 12～20 spats in each shell, and shellfish string spacing is 25～30cm.
(2) algae is thrown seedling, and throwing seedling time and shellfish are synchronous, and every width of cloth is cultured in the curtain and mainly is made up of 8～10 folder seedling ropes, and per 15～20cm folder seedling is 1 bunch on the described seedling rope, and seedling rope spacing is 25～35cm.
(3) shellfish and algal grown and results, after growth a period of time, the results algae stays the breed that shellfish culture raft carries out the second half section earlier.
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| CN102578015A (en) * | 2012-04-02 | 2012-07-18 | 大连獐子岛渔业集团股份有限公司 | Shellfish cultivation method using deep-water stand raft |
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2009
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