CN108464237A - A kind of algae curtain device for improving net cage for sea farming local environment - Google Patents
A kind of algae curtain device for improving net cage for sea farming local environment Download PDFInfo
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- CN108464237A CN108464237A CN201810346805.XA CN201810346805A CN108464237A CN 108464237 A CN108464237 A CN 108464237A CN 201810346805 A CN201810346805 A CN 201810346805A CN 108464237 A CN108464237 A CN 108464237A
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- algae
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- 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
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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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- Life Sciences & Earth Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Environmental Sciences (AREA)
- Cultivation Of Seaweed (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention discloses a kind of algae curtain devices for improving net cage for sea farming local environment, including supporting rod, side lever, cross bar, pull rod and seaweed to press from both sides seedling rope；The supporting rod is equipped with flexible connection joint, and the flexible connection joint can be fixed on supporting rod or shift position；The side lever is arranged by being flexibly connected joint on supporting rod；The side lever, cross bar form rectangular frame, if bondage dry seaweed presss from both sides seedling rope in the rectangular frame, seaweed is fixed on the seaweed folder Miao Shengshang；The side lever, cross bar, seaweed folder seedling rope, fixed seaweed group slabbing algae curtain；The pull rod is for controlling the expansion of sheet algae curtain and upward, downward folding and unfolding.The present invention not only contributes to improve seawater cage culture water environment, but also can be increased income by harvesting algae, effectively improves seawater fish cage culture comprehensive benefit, there is larger commercial application foreground.
Description
Technical field
The invention belongs to the technical field of net cage for sea farming cultivation, more particularly to a kind of improvement net cage for sea farming part
Environment and the device for recycling pollutant.
Background technology
Coastal waters tradition seawater fish net cage for sea farming cultivation is in large scale, and a large amount of sea water fisheries products are brought for people.But
Net cage for sea farming cultivation generates a large amount of residual bait, excrement and fish excreta, these substances and is all directly discharged into sea area, both caused
Water pollution influences the growth of net cage for sea farming healthy fish in turn again.Studies have reported that, sea-farming case Cultivated water
The pollutant loads such as nitrogen, phosphorus are generally greater than non-Cultivated water, and the transparency of water body and dissolved oxygen are less than control waters.Seawater is supported
It grows that cage culture water body nutriment is abundant to be also resulted in excessive aufwuch and be attached on the etting of net cage for sea farming, hinders
Flow inside and outside net cage for sea farming exchanges.In addition, often having tens to excessively thousand in the tradition net cage for sea farming culture zone of coastal waters
The not equal steck of a scale, each steck belong to different net cage for sea farming raisers, these raisers according to own situation,
More than ten to hundreds of different net cage for sea farming is set.In this assembly, net cage for sea farming and sea-farming net
Gap between case, between steck and steck is sometimes very narrow, and with fishing row movement frequently, transposition, these gaps
Size changes at any time.In addition, these steck, although can move, sudden offshore floating object pollution is once encountered in culture zone
When, basic difficulty has quick interim counter-measure.Therefore, how to be not fixed to these gapping intervals in open marine site and
Sometimes it is difficult the problem of processing that the very narrow local aquatic environment of net cage for sea farming improvement, which is one,.
The pollution problem brought to local marine environment is cultivated in order to control net cage for sea farming, domestic and foreign scholars are not using
Improve culture zone environment with the aquatile integrated culture of trophic level.It can often be utilized in composite culture system more in food chain
Kind biological growth process converts the nutrients of debirs to the cultivation byproducts such as seaweed, shellfish (or being referred to as biofilter),
Net cage for sea farming breeding pollution substance is recycled finally by these cultivation byproducts are harvested.Common method has this several class：
1) continental rise restoration of the ecosystem, i.e., by the sea at the seawater pollution of land setting different function (cultivation Different Nutrition grade biofilter)
Area, level-one grade ground purifying sea water are managed, and produces byproduct (Abreu et al, 2011), but, although such methods are extracted
Nutrition pollutant in seawater, but it is beyond one's ability to help at last to the protection of the net cage for sea farming in open marine site movement；2) exist
Net cage for sea farming culture zone has the peripheral marine site of certain distance to pass through the absorptions such as section formula large-scale farming tangleweed, shellfish
Nutriment (Chopin, 2015), but such methods cannot carry out short distance protection to net cage for sea farming；3) by biofilter
It is fixed in net cage for sea farming periphery or net cage for sea farming (Wu et al, 2015), such methods at present support seawater
It is practical at last to grow case protection, but the disadvantage is that position is relatively fixed, the biofilter being placed in net cage for sea farming may
With the main variety competition breeding spaces of cultivation, net cage for sea farming and net cage for sea farming can not be coped with by being placed on outside sea-farming case
Between, gap time width between steck and steck when narrow, fishing row between there is ship to set situations such as adjusting frequently by, fishing ranking sometimes.
And effect of this few class method all without coping with sudden offshore floating object contamination accident.
Invention content
The shortcomings that it is a primary object of the present invention to overcome the prior art and deficiency, provide a kind of improvement net cage for sea farming
Local environment and the device for recycling pollutant not only contribute to improve net cage for sea farming cultivation water environment, but also can pass through harvest
Algae increases income, and effectively improves seawater fish net cage for sea farming cultivation comprehensive benefit, there is larger commercial application foreground.
In order to achieve the above object, the present invention uses following technical scheme：
The present invention is a kind of algae curtain device for improving net cage for sea farming local environment, including supporting rod, side lever, cross
Bar, pull rod and seaweed press from both sides seedling rope；The supporting rod is equipped with flexible connection joint, and the flexible connection joint can be in supporting rod
Upper fixation or shift position；The side lever is arranged by being flexibly connected joint on supporting rod；The side lever, cross bar group are rectangular
Frame can make rectangular frame increase or reduce by handling of plugging into, if bondage dry seaweed presss from both sides seedling rope, biology in the rectangular frame
Filter is fixed on the seaweed folder Miao Shengshang；The side lever, cross bar, seaweed folder seedling rope, fixed biofilter group are in blocks
Shape algae curtain, can be according to the density for changing seaweed folder seedling rope the case where biofilter；The pull rod is for controlling sheet algae curtain
Expansion and upward, downward folding and unfolding；Mainly by adjusting manually, it is also possible to which electronic twisted rope is adjusted, because sometimes will be according to seawater
The environment (whether such as algae curtain hinders to hinder net cage water coke slurry by ship, algae curtain) of aquaculture net cage adjusts algae curtain position.
As a preferred technical solution, when needing to adjust the position of sheet algae curtain in water, it is flexibly connected by adjusting
Joint is so that side lever slides on supporting rod.
The supporting rod is equipped with Underwater Camera as a preferred technical solution, and the Underwater Camera can support
Sliding is to observe sheet algae curtain position and sub-marine situations on bar.
The supporting rod, side lever, cross bar and pull rod all can be by way of handling of plugging into as a preferred technical solution,
It is elongated or shortened.
As a preferred technical solution, there is for accurate adjustment sheet algae label on the supporting rod, side lever and cross bar
Curtain position.
The biofilter includes seaweed, shellfish or biomembrane as a preferred technical solution,.
The present invention also provides a kind of compound algae curtain device, including multiple above-mentioned algae curtain devices, multiple algae curtain devices are logical
Cross it is horizontally arranged, be vertically arranged or the mode of horizontal vertical mixing arrangement is combined, the algae curtain device setting after combination is being supported
It grows around net cage and internal, can form closed space in outside and surround net cage.
Compared with prior art, the present invention having the following advantages that and advantageous effect：
1, compared with existing improvement net cage for sea farming aquaculture sea area environment method, the present invention can be directed to traditional sea-farming
The design feature of net cage closely improves net cage for sea farming part water environment.Algae curtain device can freedom retractable, flexible, change transposition
The algae curtain device set, not with cultivate main variety competition breeding spaces under the premise of, can be placed on net cage for sea farming it is upper and lower before
Left and right each position afterwards flexibly copes with the gap time width between net cage for sea farming and net cage for sea farming, between steck and steck
When narrow and fishing ranking set situations such as adjusting frequently, and closed algae curtain array can be set to stop that floater enters seawater
In aquaculture net cage.
2, with most of net cage for sea farming in current actual production only by sea water self-purification compared with, algae curtain device have compared with
The effect of nutrition waste is removed well.Laboratory experiment is the results show that seaweed algae curtain makes the work in the water environment of net cage for sea farming part
Acid phosphate reduces by 45%, total phosphorus and reduces 34%, total nitrogen reduction 60%.Live sea area experimental result is shown：Seawater flows through red algae
After Gracilaria asparagus algae curtain, water body active phosphorus reduces nearly 80%, and water body ammonia nitrogen reduces by more than 40%；Red algae fragrant plant mentioned in ancient texts algae curtain makes to support
Grow the biomass reduction 70% that net cage for sea farming is stained aufwuch.
Description of the drawings
Fig. 1 (a) is the side view that monolithic algae curtain of the present invention is unfolded outside net cage for sea farming；
Fig. 1 (b) is the vertical view that monolithic algae curtain of the present invention is unfolded outside net cage for sea farming；
Fig. 1 (c) is the side view that monolithic algae curtain of the present invention is upwards collected through outside net cage for sea farming；
Fig. 1 (d) is the side view that monolithic algae curtain of the present invention is packed up downwards outside net cage for sea farming；
Fig. 2 (a) is the side view that monolithic algae curtain of the present invention is unfolded on net cage for sea farming；
Fig. 2 (b) is the vertical view that monolithic algae curtain of the present invention is unfolded on net cage for sea farming；
Fig. 3 (a) is the side view that monolithic algae curtain of the present invention developed below in net cage for sea farming；
Fig. 3 (b) is the vertical view that monolithic algae curtain of the present invention developed below in net cage for sea farming；
Fig. 4 (a) is two panels algae curtain of the present invention side view horizontally arranged outside net cage for sea farming；
Fig. 4 (b) is that a piece of compound algae curtain expands horizontally schematic diagram outside net cage for sea farming of the present invention.
Drawing reference numeral explanation：1, supporting rod；2, side lever；3, cross bar；4, pull rod；5, seaweed presss from both sides seedling rope；6, flexible connection is closed
Section；7, underwater camera.
Specific implementation mode
Present invention will now be described in further detail with reference to the embodiments and the accompanying drawings, but embodiments of the present invention are unlimited
In this.
The present invention devises the algae curtain device for the design feature for adapting to traditional net cage for sea farming, can flexibly be placed on sea
The all around each position up and down of water aquaculture net cage, folding and unfolding at any time is flexible, a variety of ornaments combinations, can cope with net cage for sea farming and
Situations such as adjusting frequently is set in narrow and fishing ranking when gap time width between net cage for sea farming, between steck and steck.In algae curtain
The biofilters such as algae absorb the nutrition waste discharged in net cage for sea farming in time, improved by photosynthesis molten in water
Oxygen improves sea-farming case part water environment, and the combination of closed algae curtain can cope with sudden sea pollution temporarily.
As shown in Fig. 1 (a)-Fig. 1 (d), algae curtain device of the invention mainly by supporting rod 1, side lever 2, cross bar 3, pull rod 4,
Seaweed presss from both sides seedling rope 5 and forms, and is wherein to be flexibly connected joint 6 between supporting rod and side lever, and flexible connection joint can be on supporting rod 1
Fixed or shift position.The side lever 2, cross bar 3 form rectangular frame, if bondage dry seaweed folder seedling rope 5, seaweed in rectangular frame
It is fixed on seaweed folder Miao Shengshang；The side lever, cross bar, seaweed folder seedling rope, fixed seaweed group slabbing algae curtain.The drawing
Bar 4 be used to control being unfolded of sheet algae curtain, upwards, downward folding and unfolding.The side lever can slide up and down on supporting rod surface to adjust
The position of algae curtain in water.There is Underwater Camera 7 that can be slided on supporting rod to observe algae curtain position and sub-marine situations.The branch
Strut, side lever, cross bar, drawstring (or pull rod) can all be elongated or shortened by the modes such as handling of plugging into.Supporting rod, side lever,
There is scale for accurate adjustment algae curtain on cross bar.
The position of algae curtain device is furnished and up and down situation is shown in Fig. 2 (a)-Fig. 2 (b), Fig. 3 (a)-Fig. 3 (b).Algae curtain fills
The outside that can neatly furnish in net cage for sea farming all around is set, net cage for sea farming upper and lower surface is also can be placed in, and
It can according to circumstances pack up downwards or pack up downwards.When algae curtain device is on sea-farming case, such as seaweed is needed to be placed in seawater
In the middle part of box for breeding, seaweed folder seedling rope will lengthen and in both sides falling weight, and seaweed folder seedling rope is not passed through the mesh of etting, because if
It is difficult to fast move algae curtain in this way.
Algae curtain device can also hang small net cage for sea farming or other structures are supported in addition to it can support seaweed on algae curtain side lever and cross bar
Other biological filter is grown, seaweed folder seedling rope can also be changed into cross bar and keep hanging biofilter or the compound algae curtain of suspension.It can be by if compound
Dry plate algae curtain is horizontally arranged, is arranged vertically, horizontal vertical mixing arrangement.Compound algae curtain (can replace seaweed with objects such as clothes) can be
Water surface around net cage for sea farming forms more closed space, can the sudden offshore floating pollutant of temporary dam.Algae curtain
Compound example arrangement see Fig. 4 (a)-Fig. 4 (b).
With reference to specific practical application, the present invention is further elaborated：
Embodiment 1：Algae curtain on seawater breed fish net cage for sea farming environment influence indoor simulation study
Research purpose：
To spend perch and asparagus as experiment material, indoor simulation net cage for sea farming is carried out under controlled condition indoors and spends perch
Cultivation, while tangleweed asparagus is supported in a manner of algae curtain in simulated seawater aquaculture net cage surrounding, algae curtain is probed into cultivation water
The control action of matter.
Materials and methods：
Experiment material is taken from the farm in Shantou Nanao County white sand gulf, and flower perch is derived from fisherman and spends perch breeding seawater culturing net
Case, asparagus come from asparagus culture zone.It selects that body surface is not damaged, specification is close, the stronger colored perch of mobility, pays attention to grabbing fish
When not damage fish body.Apparent sturdy asparagus is selected, the obvious attachment in surface and other algae are removed, clean sea is used in combination
Water cleans, and pays attention to not damaging frond when asparagus cleaning.After experiment material is fetched, tested in Ji'nan University's aquatic economic animal
Indoor temporarily foster 2d, fish and asparagus are individually separated during temporarily supporting, in intensity of illumination 100 μm of ol/ (m2s), photoperiod 12L:
12D, water salinity 32,21 DEG C of water temperature, continuous aeration are to ensure to carry out under conditions of dissolved oxygen abundance.Experimental water sea
Precious board seawater extract is allocated with tap water, spare through filter cotton filtering fully after aeration.
Experiment container is the glass fibre breeding barrel (radius 43cm, high 45cm) of 200L, and small sea-farming net is placed in centre
Case (the net that small net cage for sea farming is 16 by the glass fibre reinforced plastic support housing online mesh number of a height of 20cm × 20cm of length and width × 35cm
Clothing), breed fish in net cage for sea farming, net cage for sea farming surrounding respectively 1 algae curtain of setting (frame of algae curtain be length and width be 20cm ×
Then asparagus is sandwiched in Miao Shengshang by the glass fibre reinforced plastic support of 10cm, folder seedling rope is fixed on frame later).On breeding barrel
The height of square 20cm, by PC pipe supports support illumination system (being made of the LED lamp tube of 5 root long 1.2m, rated power 20w).Dividing has
Algae curtain fish net cage for sea farming group and no algae curtain fish net cage for sea farming group.
Chilled bait fish sardine is shredded during experiment and minced fillet is made with meat grinder, daily by experiment training period 15d
It feeds twice, day feeding volume about flower perch weight 6%~8%.Water sample is acquired, reactive phosphate, the total phosphorus of water body are measured, it is sub-
The content of nitrate nitrogen, nitrate nitrogen, ammonia nitrogen, total nitrogen.
Result of study：
The reactive phosphate content of no algae curtain fish net cage for sea farming group generally increases with culturing time accumulation, tests
At the end of be 2.25 ± 1.04 μm of ol/L；There is the reactive phosphate content of algae curtain fish net cage for sea farming group totally to decline, it is real
It is 1.23 ± 0.10 μm of ol/L at the end of testing.At the end of experiment, seaweed algae curtain makes the work in the water environment of net cage for sea farming part
Acid phosphate reduces 45%.At the end of experiment, the total phosphorus content of no algae curtain fish net cage for sea farming group is 6.07 ± 0.68 μ
Mol/L, it is 4.03 ± 0.96 μm of ol/L to have the total phosphorus content of algae curtain fish net cage for sea farming group, and seaweed algae curtain makes sea-farming
Total phosphorus in the water environment of net cage part reduces 34%.At the end of experiment, the total nitrogen content of no algae curtain fish net cage for sea farming group
About 170 μm of ol/L, it is 65 μm of ol/L to have the total nitrogen content of algae curtain fish net cage for sea farming group, and seaweed algae curtain makes sea-farming
Total nitrogen in the water environment of net cage part reduces about 60%.
Embodiment 2：Algae curtain breeds fish on seawater the sea area field experiment research of net cage for sea farming environment influence
Research purpose：
It is the source region of cultivation blowdown in net cage for sea farming culture zone, however in live actual production, due to seawater
Position is narrow between aquaculture net cage and fishing row and variation is big, is arranged substantially without corresponding purified treatment inside net cage for sea farming culture zone
It applies.Algae curtain device can be furnished flexibly around net cage for sea farming, and cultivating seaweed can effectively absorb sea-farming in algae curtain device
Net cage discharge waste.This research equipment red algae asparagus algae curtain device is surveyed in the net cage for sea farming culture zone in natural marine site
The attachment for determining algae curtain device side water quality index and net cage for sea farming etting, it is real with the production scene for verifying algae curtain device
Border effect.
Material and method：
The sky of certain net cage for sea farming cultivation of the net cage for sea farming culture zone in the white sand gulf sea area of Nan ' ao Island in Shantou
It sets and carries out field experiment in steck.Algae curtain side lever and cross bar is made with pvc pipes, folder seedling rope is equidistantly fixed in frame, by algae
Curtain is fixed on by net cage for sea farming, and lifting of the algae curtain in different water levels is realized with the mode of traction rope.Algae curtain is put vertically
It sets, algae curtain can be inserted and support narrow clearance space between net cage for sea farming and net cage for sea farming, embody the setting of algae curtain
Flexibility.When region of the ship by being furnished with algae curtain, packs up algae curtain and be changed to place vertically from keeping flat, to realize quickly changing for algae curtain
To reduce floor space to giving way by ship.After waiting for that ship passes through, the recovery of algae curtain is kept flat.Have and is moved down on Underwater Camera
It is dynamic that algae curtain position and observation sub-marine situations are adjusted with observation.
Seaweed is red algae asparagus in algae curtain, and fish are breed variety in net cage for sea farming at that time in net cage for sea farming
Basket fish.Dividing has algae curtain fish net cage for sea farming group and no algae curtain fish net cage for sea farming group.Experimental period is 15 days.It adopts
Collect water determination nitrogen, phosphorus index, acquires the aufwuch on net cage for sea farming etting, measure its quality.
Result of study：
Water body passes through after algae curtain, and part nutritive salt is decreased obviously：Reactive phosphate content has downward trend (P<0.01),
Highest can fall to approximately 0.2 μm of ol/L from about 0.8 μm of ol/L, reduce about 80%；The content of ammonia nitrogen has downward trend (P<0.01),
Highest can fall to approximately 1 μm of ol/L from about 1.7 μm of ol/L, reduce about 40%.Without etting in algae curtain fish net cage for sea farming group
234.1 ± 18.0g of weight in wet base of attachment, have the weight in wet base 71.0 of attachments of netting of culture in algae curtain fish net cage for sea farming group ±
6.9g, algae curtain can make the weight of attachments of netting of culture in net cage for sea farming be remarkably decreased (P<0.01), average rate of decrease 70%.
Asparagus can be used as the bait of Lan Ziyu, and therefore, asparagus algae curtain can be the discharge nutrition of blue sub- fish culture net cage for sea farming
Waste is converted into the Lan Ziyu in bait nursing net cage for sea farming.
By above-described embodiment it is found that the algae curtain device that the present invention designs, effectively sharp using the seaweed being fixed on device
With the nutrients being discharged from fish net cage, the device may be disposed at it is narrow between net cage for sea farming and net cage for sea farming between
Gap, the seaweed on device can closely absorb the nitrogen of cultivation discharge, phosphorus, and net cage for sea farming etting aufwuch is prevented to grow,
And seaweed puts oxygen by photosynthesis, improves the local water environment of net cage for sea farming.Meet with sea large scale ocean
When floating material pollutes accident, increase algae curtain to the closed performance of net cage buffering waterborne contaminant enter net cage for sea farming from
And it is that rescue cultivation loss gains time.Algae easily can be sowed or harvest at any time in device simultaneously, and algae also has certain
Economic benefit, part net cage for sea farming cultured fishes are also food with algae.The present invention both contributes to improve seawater cage culture
Water environment, and can be increased income by harvesting algae, seawater fish cage culture comprehensive benefit is effectively improved, has larger industrialization to answer
Use foreground.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, it is other it is any without departing from the spirit and principles of the present invention made by changes, modifications, substitutions, combinations, simplifications,
Equivalent substitute mode is should be, is included within the scope of the present invention.
Claims (7)
1. a kind of for improving the algae curtain device of net cage for sea farming local environment, which is characterized in that including supporting rod, side lever,
Cross bar, pull rod and seaweed press from both sides seedling rope；The supporting rod is equipped with flexible connection joint, and the flexible connection joint can support
Fixed or shift position on bar；The side lever is arranged by being flexibly connected joint on supporting rod；The side lever, cross bar form square
Shape frame can make rectangular frame increase or reduce by handling of plugging into, raw if bondage dry seaweed presss from both sides seedling rope in the rectangular frame
Object filter is fixed on the seaweed folder Miao Shengshang；The side lever, cross bar, seaweed folder seedling rope, fixed biofilter composition
Sheet algae curtain；The pull rod is for controlling the expansion of sheet algae curtain and upward, downward folding and unfolding.
2. being used to improve the algae curtain device of net cage for sea farming local environment according to claim 1, which is characterized in that when need
When adjusting the position of sheet algae curtain in water, joint is flexibly connected so that side lever slides on supporting rod by adjusting.
3. being used to improve the algae curtain device of net cage for sea farming local environment according to claim 1, which is characterized in that described
Supporting rod be equipped with Underwater Camera, the Underwater Camera can slide on supporting rod with observe sheet algae curtain position under water
Situation.
4. being used to improve the algae curtain device of net cage for sea farming local environment according to claim 1, which is characterized in that described
Supporting rod, side lever, cross bar and pull rod can all be elongated or shortened by way of handling of plugging into.
5. being used to improve the algae curtain device of net cage for sea farming local environment according to claim 1, which is characterized in that described
There is for accurate adjustment sheet algae curtain position label on supporting rod, side lever and cross bar.
6. being used to improve the algae curtain device of sea-farming case local environment according to claim 1, which is characterized in that the life
Object filter includes seaweed, shellfish or biomembrane.
7. a kind of compound algae curtain device, which is characterized in that including multiple algae curtain dresses as described in any one of claim 1-6
Set, multiple algae curtain devices it is horizontally arranged, be vertically arranged or horizontal vertical mixing arrangement by way of be combined, after combination
Algae curtain device is arranged around aquaculture net cage and inside, can form closed space in outside and surround net cage.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112544522A (en) * | 2020-12-25 | 2021-03-26 | 青岛农业大学 | Deep sea aquaculture net cage |
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| CN107522288A (en) * | 2017-10-10 | 2017-12-29 | 宁波大学 | The ecological restoration device and its application method in type semienclosed sea area |
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| CN112544522A (en) * | 2020-12-25 | 2021-03-26 | 青岛农业大学 | Deep sea aquaculture net cage |
| CN112544522B (en) * | 2020-12-25 | 2022-05-20 | 山东省海洋科学研究院(青岛国家海洋科学研究中心) | Deep sea aquaculture net cage |
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