CN109392777A - Larimichthys crocea net cage comprehensive culturing method based on environmental-friendly efficient and healthful - Google Patents
Larimichthys crocea net cage comprehensive culturing method based on environmental-friendly efficient and healthful Download PDFInfo
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- CN109392777A CN109392777A CN201811480664.7A CN201811480664A CN109392777A CN 109392777 A CN109392777 A CN 109392777A CN 201811480664 A CN201811480664 A CN 201811480664A CN 109392777 A CN109392777 A CN 109392777A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; 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
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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
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
- A01K61/50—Culture of aquatic animals of shellfish
- A01K61/54—Culture of aquatic animals of shellfish of bivalves, e.g. oysters or mussels
- A01K61/55—Baskets therefor
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; 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
-
- 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
Abstract
The Larimichthys crocea net cage comprehensive culturing method based on environmental-friendly efficient and healthful that the present invention relates to a kind of, the following steps are included: selecting the sea area for being suitble to cultured large yellow croaker, then the region centered on Larimichthys crocea cage culture area, the shellfish beds around the distribution of Larimichthys crocea cage culture area is set in the outside in Larimichthys crocea cage culture area, is arranged in the outside of shellfish beds around the algae culturing area of shellfish beds's distribution；The cultural method can not only mitigate breeding environment pressure, raising cultivating system recycles efficiency, and cultivation system is reasonable, can promote cultured product Sustainable high yield, promotes Larimichthys crocea cage culture efficient health sustainable development, improves composite culture benefit.
Description
Technical field
The present invention relates to seawater mariculture technical fields, and in particular to the rheum officinale fishnet based on environmental-friendly efficient and healthful
Case comprehensive breeding method.
Background technique
In recent years, culture fishery, especially mariculture industry are swift and violent with its unique advantage in China or even the whole world
Development, constantly meets the needs of people are to aquatic products.But due to the excessively single ecologic structure of sea-farming and breeding way
Gradually coastal ecological environment is had an impact, causes coastal ocean so that aquaculture sea area pollution is got worse with the defect of scale
Bio-diversity is reduced.Seawater cage culture mostly uses highdensity bait throwing in cultivate, and by long-term large-scale farming, generates
Residual bait and the metabolic wastes of fish largely accumulated in culture zone, accelerate the organic contamination and eutrophication of water body.
Larimichthys crocea is China " eight large outlet advantage breed varieties ", is important marine fish.Traditional Larimichthys crocea is net
The problems such as cage breeding is grown, and there is breeding wastewaters to pollute, disease is multiple, fish quality.Therefore it is badly in need of wanting a kind of environment friend
The Larimichthys crocea cultural method of good efficient and healthful.
It has been investigated that: Larimichthys crocea cage culture: feeding 1kg mixed feed and fresh material, is to water environment discharge nitrogen respectively
18.3g and 8.4g, phosphorus are 0.8g and 0.7g；The excrement residual bait particulate matter total nitrogen generated respectively is 2.0g and 1.5g, and total phosphorus is
0.9g and 0.8g.
The comprehensive forage coefficient of 2 anniversary of rheum officinale fish culture, mixed feed and fresh material takes 2.0, i.e. production 1kg Larimichthys crocea needs
2kg composite bait is fed, bait nitrogen discharge and phosphorus discharge maximum value is taken (to discharge nitrogen 18.3g/kg bait, phosphorus 0.8g/kg bait in water environment
Material, particulate matter total nitrogen 2.0g/kg, total phosphorus 0.9g/kg) it calculates, then 1 ton of Larimichthys crocea (2 anniversary), which is produced, to water environment discharges nitrogen altogether
For 36.6kg, phosphorus be 1.6kg (be equivalent to annual nitrogen be 18.3kg, phosphorus 0.8kg, half annual nitrogen is 9.2kg, phosphorus is
0.4kg), discharged particle total nitrogen 4.0g/kg, total phosphorus 1.8g/kg (be equivalent to annual total nitrogen be 2.0kg, total phosphorus 0.9kg,
Half annual total nitrogen is 1.0kg, total phosphorus 0.5kg).
Oyster: suspended particulate substance and planktonic organism in filter food sea area are grown, while discharging biogenic deposits simultaneously using nitrogen phosphorus
It is converted into benthic substance and energy by biodeposition, promotes substance conversion and the energy flow of the ecosystem,
Reach to purify water and stablizes purpose with the ecosystem.1 ton of oyster (shell weight cultivated for 1 anniversary) is produced, can be removed from aquaculture sea area year
The total nitrogens such as particulate matter are about 3.6kg, total phosphorus about 0.3kg.
Asparagus: absorbing nitrogen phosphorus growth in water, produces 1 ton of asparagus (weight in wet base, practical cultivation are half a year), can be from cultivation sea
Domain remove nitrogen be about 4.0kg, phosphorus about 0.2kg.
Kelp: absorbing nitrogen phosphorus growth in water, produces 1 ton of kelp (weight in wet base, practical cultivation are half a year), can move from aquaculture sea area
Denitrogenate about 1.2kg, phosphorus about 0.2kg.
Summary of the invention
The present invention provides a kind of Larimichthys crocea net cage comprehensive culturing method based on environmental-friendly efficient and healthful, the cultural method
Breeding environment pressure can not only be mitigated, cultivating system is improved and recycle efficiency, and it is reasonable to cultivate system, can promote to cultivate production
Product Sustainable high yield promotes Larimichthys crocea cage culture efficient health sustainable development, improves composite culture benefit.
The invention is realized by the following technical scheme:
A kind of Larimichthys crocea net cage comprehensive culturing method based on environmental-friendly efficient and healthful selects to be suitble to cultured large yellow croaker
Sea area, then the region centered on Larimichthys crocea cage culture area, the outside setting in Larimichthys crocea cage culture area surround big
The shellfish beds of yellow croaker net cage culture zone distribution is arranged in the outside of shellfish beds around the sea of shellfish beds's distribution
Algae culture zone；The cultured area ratio in Larimichthys crocea cage culture area, shellfish beds and algae culturing area is 1 ︰ 40-50 ︰ 8.7-67；
In the first tenday period of a month May mid-April-and small flood tide that water temperature is 15 DEG C~20 DEG C in the Larimichthys crocea cage culture area
The low slack tide stream time slack of period launches fry, according to 48000-52000 tail is launched in every 1 mu of net cage when launching fry, cultivates 2
Year, and every 1-5 days mornings or dusk feed 1 agreeable to the taste feed of Larimichthys crocea, 3% of day feeding rate less than fish total weight when cultivation；
Shellfish beds's oyster culture；
The algae culturing area is during the cultivation of Larimichthys crocea according to kelp and asparagus interval every half a year raft in turn
Formula cultivation is gathered at once after cultivation is mature.
Further, when the seaweed is kelp, the cultured area of Larimichthys crocea, oyster and kelp is 1 ︰ 40-50 ︰
55-67。
Further, when the seaweed is asparagus, the cultured area of Larimichthys crocea, oyster and asparagus is 1 ︰ 40-
50 ︰ 8.7-10.6.
Further, when cultivation, when spring to autumn water temperature is suitable for, the frequency for feeding the agreeable to the taste feed of Larimichthys crocea is to throw daily
It feeds 1 time, feeds rate day less than 3%；When for winter, the frequency for feeding the agreeable to the taste feed of Larimichthys crocea is to feed 1 time in every 3-5 days, day
Rate is fed less than 1%.
Further, the sea area of the suitable cultured large yellow croaker is the sea area for keeping away high sea, the depth of water 8m or more in the sea area,
Trend is unimpeded, and sea area flow velocity is less than 1.5m/s；It flows to straight and stablizes, 8 DEG C -30 DEG C of water temperature；Salinity 13-32.
Further, the sea area flow velocity is less than 0.2m/s after baffle.
The condition meets Larimichthys crocea life habit, is conducive to rheum officinale fish culture.
Further, when rheum officinale fish culture, per acre set up 27 a length of 5m, width be 5m culture raft frame, every 9 a length of 5m,
Width is that the etting that an a length of 15m wide is 15m is hung under 5m culture raft frame, and etting depth is 8m.(etting depth is that etting bottom is arrived
Cultivate the height of valve upper surface.)
The principle of the present invention is as follows:
According to the aquaculture organism nitrogen phosphorus status of profit and loss, the Larimichthys crocea net cage based on the remittance dynamic equilibrium of aquaculture organism nitrogen phosphorus source is established
More trophic level integrated cultures, cultured area proportion calculate as follows:
(1) on the basis of Larimichthys crocea cage culture area, it is arranged 1 mu of cultured area, culture-cycle (2 years) interior total output
About 20 tons (specification: average 500g), then to water environment discharge nitrogen be 732.0kg, phosphorus is that 32.0kg (is equivalent to annual discharge nitrogen
For 366.0kg, phosphorus 16.0kg, half a year average emission nitrogen is 183.0kg, phosphorus 8.0kg), it is particulate matter total nitrogen 80.0g/kg, total
Phosphorus 36.0g/kg (be equivalent to annual discharge total nitrogen be 40.0kg, total phosphorus 18.0kg, half a year average emission total nitrogen is
20.0kg, total phosphorus 9.0kg).
(2) 1 mu about 1.3 tons of oyster annual output (shell weight), year removes the total nitrogens about 4.7kg, total phosphorus about 0.4kg such as particulate matter.
For the year particulate matter nitrogen and phosphorus content that 1 mu of rheum officinale fish culture of purification generates, 8.6 mu of oyster culture area need to be matched (on the basis of nitrogen
Reference area, year remove total nitrogen be about 40.4kg, total phosphorus about 3.4kg, nitrogen break even, phosphorus lose) or 45 mu (on the basis of phosphorus
Reference area, remove in year total nitrogen be about 211.5kg, total phosphorus about 18.0kg, phosphorus break even, nitrogen are full of receipts), take and match maximum value and be
45 mu of oyster culture area.
(3) 1 mu of about 2.5 tons of kelp annual outputs (weight in wet base, practical cultivation are half a year), remove nitrogen be about 3kg, phosphorus about 0.5kg.
For the water environment nitrogen and phosphorus content that 1 mu of rheum officinale fish culture of purification generates, 61 mu of laminaria culture area need to be matched and (calculated on the basis of nitrogen
Area, remove nitrogen be about 183.0kg, phosphorus about 30.5kg, nitrogen break even, phosphorus are full of receipts) or 16 mu (face is calculated on the basis of phosphorus
Product, remove nitrogen be about 48.0kg, phosphorus about 8.0kg, phosphorus break even, nitrogen lose), take proportion maximum value be laminaria culture area 61
Mu.
(4) 1 mu of about 0.8 ton of each monthly outputs of asparagus (weight in wet base, practical cultivation are half a year), annual cultivation 6 months is produced per year
Amount totally 4.8 tons, remove altogether nitrogen be about 19.2kg, phosphorus about 1.0kg.The water environment nitrogen phosphorus generated for 1 mu of rheum officinale fish culture of purification contains
Amount, need to match 9.6 mu of asparagus cultured area (using nitrogen as benchmark reference area, removal nitrogen be about 184.3kg, phosphorus about 9.6kg,
Nitrogen break even, phosphorus are full of receipts) or 8 mu (using phosphorus as benchmark reference area, remove nitrogen be about 153.6kg, phosphorus about 8.0kg, phosphorus profit and loss
Balance, nitrogen lose), taking proportion maximum value is 9.6 mu of asparagus cultured area.
In summary it analyzes, based on the remittance dynamic equilibrium of aquaculture organism nitrogen phosphorus source, 1 mu of Larimichthys crocea cage culture stoichiometric 45
Mu oyster, 61 mu of kelps, 9.6 mu of asparagus, i.e. male oyster ︰ kelp (asparagus) the cultured area ratio of great Huang fish ︰ are 1 ︰, 45 ︰ 61
(9.6).To improve environment remediation ability, aquatic environment is ensured, the practical proportion in culture zone can properly increase algal culture area.
The prior art before relatively, the invention has the following advantages: the cultural method can not only mitigate breeding environment
Pressure, raising cultivating system recycle efficiency, and cultivation system is reasonable, can promote cultured product Sustainable high yield, promote big
Yellow croaker net cage cultivates efficient health sustainable development, improves composite culture benefit.
Specific embodiment
The present invention is further described below with reference to embodiment.As known to those skilled in the art, following embodiments are not to this
The limitation of invention protection scope, any improvements and changes made on the basis of the present invention all protection scope of the present invention it
It is interior.
Embodiment 1
A kind of Larimichthys crocea net cage comprehensive culturing method based on environmental-friendly efficient and healthful selects to be suitble to cultured large yellow croaker
Sea area, then the region centered on Larimichthys crocea cage culture area, the outside setting in Larimichthys crocea cage culture area surround big
The shellfish beds of yellow croaker net cage culture zone distribution is arranged in the outside of shellfish beds around the sea of shellfish beds's distribution
Algae culture zone；
In the first tenday period of a month May mid-April-and small flood tide that water temperature is 15 DEG C~20 DEG C in the Larimichthys crocea cage culture area
The low slack tide stream time slack of period launches fry (when the lower selection of temperature is in fine and calm weather afternoon dispensing；Temperature compared with
High preferably selection is launched in shady and cool weather or sooner or later), according to 50000 tails are launched in every 1 mu of net cage when launching fry, cultivate 2 years,
And when cultivating every 1-5 days mornings or dusk feed 1 agreeable to the taste feed of Larimichthys crocea, day, feeding rate was less than 3%；
Shellfish beds's oyster culture；
The algae culturing area is during the cultivation of Larimichthys crocea according to kelp and asparagus interval every half a year raft in turn
Formula cultivation is gathered at once after cultivation is mature.
When the seaweed is kelp, the cultured area of Larimichthys crocea, oyster and kelp is 1 ︰, 45 ︰ 61.
When the seaweed is asparagus, the cultured area of Larimichthys crocea, oyster and asparagus is 1 ︰, 45 ︰ 9.6.
It when cultivation, when spring to autumn water temperature is suitable for, feeds daily 1 time, day feeding rate is less than the 3% of fish total weight；When
When for winter, feeding frequency is to feed 1 time for every 3-5 days, feeds rate day less than 1%.
The sea area of high sea is kept away in the sea area of the suitable cultured large yellow croaker, and depth of water 8m or more, trend is unimpeded, and sea area flow velocity is small
In 1.5m/s；It flows to straight and stablizes, flow velocity is less than 0.2m/s in net cage after the measures such as baffle；8 DEG C -30 DEG C of water temperature；Salinity
13-32.The condition meets Larimichthys crocea life habit, is conducive to rheum officinale fish culture.
When rheum officinale fish culture, 27 a length of 5m, width are set up per acre as 5m culture raft frame, every 9 a length of 5m, width are 5m cultivation
The etting that an a length of 15m wide is 15m is hung under raft frame, etting depth is 8m.
Embodiment 2
A kind of Larimichthys crocea net cage comprehensive culturing method based on environmental-friendly efficient and healthful selects to be suitble to cultured large yellow croaker
Sea area, then the region centered on Larimichthys crocea cage culture area, the outside setting in Larimichthys crocea cage culture area surround big
The shellfish beds of yellow croaker net cage culture zone distribution is arranged in the outside of shellfish beds around the sea of shellfish beds's distribution
Algae culture zone；In the first tenday period of a month May mid-April-and neap that water temperature is 15 DEG C~20 DEG C in the Larimichthys crocea cage culture area
Low slack tide stream time slack between flood season launches fry (when the lower selection of temperature is in fine and calm weather afternoon dispensing；Temperature
It is higher preferably to select to launch in shady and cool weather or sooner or later), according to 48000 tails are launched in every 1 mu of net cage when launching fry, cultivate 2
Year, and when cultivating every 1-5 days mornings or dusk feed 1 agreeable to the taste feed of Larimichthys crocea, day, feeding rate was less than 3%；
Shellfish beds's oyster culture；
The algae culturing area is during the cultivation of Larimichthys crocea according to kelp and asparagus interval every half a year raft in turn
Formula cultivation is gathered at once after cultivation is mature.
When the seaweed is kelp, the cultured area of Larimichthys crocea, oyster and kelp is 1 ︰, 40 ︰ 55.
When the seaweed is asparagus, the cultured area of Larimichthys crocea, oyster and asparagus is 1 ︰, 40 ︰ 8.7.
It when cultivation, when spring to autumn water temperature is suitable for, feeds daily 1 time, day feeding rate is less than the 3% of fish total weight；When
When for winter, feeding frequency is to feed 1 time for every 3-5 days, feeds rate day less than 1%.
Not only there is no any burden to marine environment using this kind of aquaculture model, but also ocean can be cleaned to the maximum extent
N, P pollutes, and cleans seawater.It is cultivated 2 years using the mode, is detected seawater N, the P in the region compared with background values, slightly subtracted
It is small.
The sea area of high sea is kept away in the sea area of the suitable cultured large yellow croaker, and depth of water 8m or more, trend is unimpeded, and sea area flow velocity is small
In 1.5m/s；It flows to straight and stablizes, flow velocity is less than 0.2m/s in net cage after the measures such as baffle；8 DEG C -30 DEG C of water temperature；Salinity
13-32.The condition meets Larimichthys crocea life habit, is conducive to rheum officinale fish culture.
When rheum officinale fish culture, 27 a length of 5m, width are set up per acre as 5m culture raft frame, every 9 a length of 5m, width are 5m cultivation
The etting that an a length of 15m wide is 15m is hung under raft frame, etting depth is 8m.
Embodiment 3
A kind of Larimichthys crocea net cage comprehensive culturing method based on environmental-friendly efficient and healthful selects to be suitble to cultured large yellow croaker
Sea area, then the region centered on Larimichthys crocea cage culture area, the outside setting in Larimichthys crocea cage culture area surround big
The shellfish beds of yellow croaker net cage culture zone distribution is arranged in the outside of shellfish beds around the sea of shellfish beds's distribution
Algae culture zone；In the first tenday period of a month May mid-April-and neap that water temperature is 15 DEG C~20 DEG C in the Larimichthys crocea cage culture area
Low slack tide stream time slack between flood season launches fry (when the lower selection of temperature is in fine and calm weather afternoon dispensing；Temperature
It is higher preferably to select to launch in shady and cool weather or sooner or later), according to 52000 tails are launched in every 1 mu of net cage when launching fry, cultivate 2
Year, and every 1-5 days mornings or dusk feed 1 agreeable to the taste feed of Larimichthys crocea, 3% of day feeding rate less than fish total weight when cultivation；
Shellfish beds's oyster culture；
The algae culturing area is during the cultivation of Larimichthys crocea according to kelp and asparagus interval every half a year raft in turn
Formula cultivation is gathered at once after cultivation is mature.
When the seaweed is kelp, the cultured area of Larimichthys crocea, oyster and kelp is 1 ︰, 50 ︰ 67.
When the seaweed is asparagus, the cultured area of Larimichthys crocea, oyster and asparagus is 1 ︰, 50 ︰ 10.6.
When cultivation, when spring to autumn water temperature is suitable for, feeds daily 1 time, feed rate day less than 3%；When for winter, throw
Feeding frequency is to feed 1 time for every 3-5 days, feeds rate day less than 1%.
The sea area of high sea is kept away in the sea area of the suitable cultured large yellow croaker, and depth of water 8m or more, trend is unimpeded, and sea area flow velocity is small
In 1.5m/s；It flows to straight and stablizes, flow velocity is less than 0.2m/s in net cage after the measures such as baffle；8 DEG C -30 DEG C of water temperature；Salinity
13-32.The condition meets Larimichthys crocea life habit, is conducive to rheum officinale fish culture.
When rheum officinale fish culture, 27 a length of 5m, width are set up per acre as 5m culture raft frame, every 9 a length of 5m, width are 5m cultivation
The etting that an a length of 15m wide is 15m is hung under raft frame, etting depth is 8m.
Above embodiments cultivate in the Larimichthys crocea culture zone of Bay, Ningde, Fujian Province San Du Ao.The fingerling source of above embodiments
National or provincial Larimichthys crocea seed farm or seed multiplication farm, the fingerling meet the regulation of 2049.2 standard of SC/T, fingerling specification 50g/ tail
More than, fish body size is neat, and the bodily form is slender and well-balanced, and scale is complete, and no to hurt, is disease-free, without deformity, travelling is active.Quarantine is qualified,
And launched after antibiotic fresh water solution disinfection, drug use meets the regulation of NY 5071.
From following table it is found that using cultural method of the invention, not only the cultured output of various products is high, but also can also purify
Aquaculture sea area.Cultivation plot mean is being averaged of randomly selecting that the water of 11 points detected in culturing area before cultivation
Value.
1 embodiment 1 of table cultivates the yield of 2 years Larimichthys croceas, oyster, kelp, asparagus
| Larimichthys crocea | Oyster | Kelp | Asparagus | |
| Area (mu) | 1 | 45 | 61 | 9.6 |
| 2 gross annual output amount (ton) per acre | 20 | 2.6 | 5 | 9.6 |
| Culture zone total output (ton) | 20 | 117 | 305 | 92.16 |
2 embodiment 2 of table cultivates the yield of 2 years Larimichthys croceas, oyster, kelp, asparagus
| Larimichthys crocea | Oyster | Kelp | Asparagus | |
| Area (mu) | 1 | 40 | 55 | 8.7 |
| Per mu yield (ton) in 2 years | 19.97 | 2.7 | 5.5 | 10.0 |
| Yield (ton) | 19.97 | 108 | 302.5 | 87 |
3 embodiment 3 of table cultivates the yield of 2 years Larimichthys croceas, oyster, kelp, asparagus
| Larimichthys crocea | Oyster | Kelp | Asparagus | |
| Area (mu) | 1 | 50 | 67 | 10.6 |
| Per mu yield (ton) in 2 years | 20.06 | 2.63 | 5.2 | 9.5 |
| Yield (ton) | 20.06 | 131.5 | 348.4 | 100.7 |
Table 4 cultivates 2 years seawater N, P loads
Claims (7)
1. a kind of Larimichthys crocea net cage comprehensive culturing method based on environmental-friendly efficient and healthful, which is characterized in that including following step
It is rapid:
The sea area for being suitble to cultured large yellow croaker is selected, then the region centered on Larimichthys crocea cage culture area, in Larimichthys crocea net cage
The shellfish beds around the distribution of Larimichthys crocea cage culture area is arranged in the outside of culture zone, sets in the outside of shellfish beds
It sets around the algae culturing area of shellfish beds's distribution；Larimichthys crocea cage culture area, shellfish beds and algae culturing area are supported
Growing area ratio is 1 ︰ 40-50 ︰ 8.7-67；
In the Larimichthys crocea cage culture area in the first tenday period of a month May mid-April-and between neap flood season that water temperature is 15 DEG C~20 DEG C
Low slack tide stream time slack launch fry, launch fry when according in every 1 mu of net cage launch 48000-52000 tail, cultivate 2 years, and
Every 1-5 days mornings or dusk feed 1 agreeable to the taste feed of Larimichthys crocea when cultivation, and day feeding rate is less than the 3% of fish total weight；
Shellfish beds's oyster culture；
According to kelp and asparagus interval every half a year, raft formula is supported in turn during the cultivation of Larimichthys crocea in the algae culturing area
It grows, is gathered at once after cultivation is mature.
2. a kind of Larimichthys crocea net cage comprehensive culturing method based on environmental-friendly efficient and healthful according to claim 1,
Be characterized in that: when the seaweed is kelp, the cultured area of Larimichthys crocea, oyster and kelp is 1 ︰ 40-50 ︰ 55-67.
3. a kind of Larimichthys crocea net cage comprehensive culturing method based on environmental-friendly efficient and healthful according to claim 1,
Be characterized in that: when the seaweed is asparagus, the cultured area of Larimichthys crocea, oyster and asparagus is 1 ︰ 40-50 ︰ 8.7-
10.6。
4. a kind of Larimichthys crocea net cage comprehensive culturing method based on environmental-friendly efficient and healthful according to claim 1,
Be characterized in that: when cultivation, when spring to autumn water temperature is suitable for, the frequency for feeding the agreeable to the taste feed of Larimichthys crocea is to feed 1 time daily, day
Rate is fed less than 3%；When for winter, the frequency for feeding the agreeable to the taste feed of Larimichthys crocea is to feed 1 time for every 3-5 days, and it is small that day feeds rate
In 1%.
5. a kind of Larimichthys crocea net cage comprehensive culturing method based on environmental-friendly efficient and healthful according to claim 1,
Be characterized in that: the sea area of the suitable cultured large yellow croaker is the sea area for keeping away high sea, the depth of water 8m or more in the sea area, and trend is smooth
Logical, sea area flow velocity is less than 1.5m/s；It flows to straight and stablizes, 8 DEG C -30 DEG C of water temperature；Salinity 13-32.
6. a kind of Larimichthys crocea net cage comprehensive culturing method based on environmental-friendly efficient and healthful according to claim 5,
Be characterized in that: the sea area flow velocity is less than 0.2m/s after baffle.
7. a kind of Larimichthys crocea net cage comprehensive culturing method based on environmental-friendly efficient and healthful according to claim 1,
It is characterized in that: when rheum officinale fish culture, setting up 27 a length of 5m, width per acre as 5m culture raft frame, every 9 a length of 5m, width are supported for 5m
The etting for hanging that an a length of 15m wide is 15m under raft frame is grown, etting depth is that 6-8m makes the etting form top-open surrounding and bottom
The closed Larimichthys crocea culture zone in portion, by rheum officinale fish culture in the Larimichthys crocea culture zone.
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