CN104719209A - Wild domestication method for improving enhancement and releasing survival rate of lutjanus argentimaculatus fry in Guangdong sea area - Google Patents
Wild domestication method for improving enhancement and releasing survival rate of lutjanus argentimaculatus fry in Guangdong sea area Download PDFInfo
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- CN104719209A CN104719209A CN201510149615.5A CN201510149615A CN104719209A CN 104719209 A CN104719209 A CN 104719209A CN 201510149615 A CN201510149615 A CN 201510149615A CN 104719209 A CN104719209 A CN 104719209A
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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
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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
Abstract
The invention discloses a wild domestication method for improving the enhancement and releasing survival rate of lutjanus argentimaculatus fry in a Guangdong sea area. The method comprises the steps that the swimming ability, the ingestion ability and the anti-predation ability of the released lutjanus argentimaculatus fry are trained, predation and anti-predation behavior learning and training are carried out, and the hiding ability of the released fry is trained. According to the wild domestication method, the ability to adapt to the wild environment of the released fry can be improved, and then the survival rate of the artificially released fry is improved.
Description
Technical field
The present invention relates to a kind of wild domesticating method improving marine site, Guangdong rock salmon seed enhancement releasing survival rate.
Background technology
Enhancement releasing is after wild fish, shrimp, crab, shellfish etc. are carried out to artificial propagation, cultivate or fish for natural seeding, wild fry, cultivate under artificial condition, and be discharged in the natural water area of fishery resources appearance decline, its Natural Population is recovered, then carries out the fishery mode of rational fishing.At present, enhancement releasing is existing day by day universal both at home and abroad as one effective fisheries management means.
Although enhancement releasing is subject to extensive concern; and important function has been played in the process of sustainable development of fish; the artificial fecundation of fish is released and is not still reached the fish multiplication protected effect of expection; one of its chief reason is; the fish that part is manually put in a suitable place to breed is higher at enhancement releasing IDR, significantly weakens the benefit of enhancement releasing.Therefore, how reducing the lethality of fish after releasing, is a problem possessing important realistic meaning.Rock salmon is the torrid zone, coastal waters, subtropics demersal fishes.The main area of point China is offshore coral reef, cay and the husky mud substrate shallow water along the coast that the South China Sea Islands, Hainan, Guangdong and Taiwan etc. are economized.Being the important tuna fisheries of China, is also the common enhancement releasing kind in marine site, Guangdong.Therefore, also extremely urgent to the enhancement effect research of rock salmon.
Summary of the invention
In order to overcome above-mentioned technical problem, the object of the present invention is to provide a kind of wild domesticating method improving marine site, Guangdong rock salmon seed enhancement releasing survival rate, increasing the survival rate of enhancement releasing rock salmon seed after variation of ecology and environment.
The technical solution adopted in the present invention is:
Improve a wild domesticating method for marine site, Guangdong rock salmon seed enhancement releasing survival rate, comprise the steps:
1) before enhancement releasing, put in a suitable place to breed by rock salmon fry and tame and docile in device in open country, described open country is tamed and dociled device and is provided with water inlet and delivery port, arranges wildly tame and docile water speed in device and flow to, with the Burden-Swimming Ability of KM of tame and docile experienced seed according to the water velocity in place of releasing and flowing to;
2) in tame and docile device out of office, bait thrower is under water set, throws live bait under water, to temper the ingestion ability of rock salmon seed;
3) harmful organisms is placed in tame and docile device out of office, the anti-prey ability of rock salmon seed of releasing with tame and docile white silk;
4) add wild similar in tame and docile device out of office, carry out preying on-anti-predation study tames and dociles and practices;
5) stone, submerged plant and floating plant is placed in tame and docile device out of office, to temper hiding ability and adapting to wild environment of seed of releasing.
As preferably, in described step 3), every 1000 m
3place the harmful organisms of 1.0 ~ 2.0 kg.
As preferably, described harmful organisms is black porgy.
As preferably, add 1% ~ 2% wild similar in described step 4).
Device is tamed and dociled in a kind of aquatic animal open country, it comprises domestication pool 1, the bait thrower under water 2 be located in domestication pool 1, the water inlet pipe 3 being located at domestication pool 1 one end, the outlet pipe 4 being located at domestication pool 1 other end, other traffic organising plate 9, the high powered water pump 5 being located at domestication pool 1 outside and the flow cavitation result case 7 of import of the outlet being located at water inlet pipe and/or outlet pipe and the current holes probe 6 that stretched into by movable branching rod 60 in pond.
The top of described traffic organising plate 9, middle part, bottom are all at least provided with a drainage to control hole, open and close by what control this some holes the flow direction controlling current.
As preferably, between described domestication pool 1 sidewall and traffic organising plate 9, be provided with water flow buffer plate 8.
As preferably, described bait thrower under water by pull rope 20, contain bait case 21 and case lid 22 forms, pull rope 20 one end is fixed on case lid 22, for opening case lid 22.
As preferably, domestication pool 1 pool wall has link for fixed cage, removes the wall effect that becomes of fish.
The invention has the beneficial effects as follows: by the technological means of above 5 kinds of wild domestications, improve marine site, Guangdong rock salmon to release the ability of adaptation wild environment of seed, and then improve survival rate and the rate of recapture of artificial releasing seed, improve economic benefit and the ecological benefits of seed enhancement releasing.
Accompanying drawing explanation
Fig. 1 is that device schematic diagram is tamed and dociled in aquatic animal of the present invention open country.
Embodiment
The aquatic animal open country of Fig. 1 tames and dociles that device comprises domestication pool 1, the bait thrower under water 2 be located in domestication pool 1, the water inlet pipe 3 being located at domestication pool 1 one end, the outlet pipe 4 being located at domestication pool 1 other end, other traffic organising plate 9, the high powered water pump 5 being located at domestication pool 1 outside and the flow cavitation result case 7 of import of the outlet being located at water inlet pipe and/or outlet pipe and the current holes probe 6 that stretched into by movable branching rod 60 in pond.
The top of described traffic organising plate 9, middle part, bottom are all at least provided with a drainage to control hole, open and close by what control this some holes the flow direction controlling current.Such as, only open the traffic organising hole on top, when closing the control hole of middle part and bottom, form sinking; Only open the traffic organising hole of bottom, when closing the control hole on middle part and top, form upwelling.
Water flow buffer plate 8 is provided with between described domestication pool 1 sidewall and traffic organising plate 9.
Described bait thrower is under water made up of pull rope 20, Sheng bait case 21 and case lid 22, and pull rope 20 one end is fixed on case lid 22, for opening case lid 22.Be loaded on by live bait during use and contain in bait case 21, thrown by whole casing in domestication pool 1, opened by case lid 22 by pull rope 20, namely the live bait in case is released.
Domestication pool 1 pool wall has link for fixed cage, removes the wall effect that becomes of fish.
Below in conjunction with embodiment, the present invention is further illustrated, but be not limited thereto.
the method of the wild domestication of marine site, embodiment 1 Guangdong rock salmon seed enhancement releasing
Step is as follows:
1) before enhancement releasing, being put in a suitable place to breed by rock salmon seed tames and dociles in device in open country, described open country is tamed and dociled device and is provided with water inlet and delivery port, arranges wildly tame and docile water speed in device and flow to, with the Burden-Swimming Ability of KM of tame and docile experienced fry according to the water velocity in Zhe Linwan-Nan ' ao Island marine site and flowing to; Zhe Linwan-Nan ' ao Island marine site sea surface current is mainly subject to the impact of wind direction, landform and Circulation In The South China Sea, and middle and bottom layers ocean current is subject to the impact of landform and Circulation In The South China Sea, and wherein wind current occupies larger advantage.Table, in and bottom Peak Flow Rate all appear at flow measurement place, flow velocity, flow to be respectively: 60.1cm/s, 87 °; 37.5cm/s, 54 °; 28.8cm/s, 61 °
2) arrange bait thrower under water in tame and docile device out of office, throw the body length alive shrimp at about 1-2cm under water, input amount is wait to tame 1% of seed gross weight, to temper the ingestion ability of fry;
3) every 1000 m in tame and docile device out of office
3place the black porgy of 1.0 ~ 2.0 kg as harmful organisms, the anti-prey ability of seed of releasing with tame and docile white silk;
4) the wild rock salmon of 1% is added in tame and docile device out of office, carry out preying on-anti-predation study is tame and docile to be practiced;
5) stone, submerged plant and floating plant is placed in tame and docile device out of office, to temper hiding ability and adapting to wild environment of seed of releasing.
Wild domestication continues 10, and after wild domestication, the richness of rock salmon juvenile fish can be made to improve more than 10%, and the raising of liver fat content is greater than 20%, and stress tolerance ability (resistance index: as anoxic survival ability, anti-hunger ability) improves 15%.Released in Zhe Linwan-Nan ' ao Island marine site, after releasing, lethality reduces about 10%, and its rate of recapture of releasing also brings up to more than 20% by by original 17.40%.
As can be seen here, wild domesticating method of the present invention, can improve the ability that seed of releasing adapts to wild environment, and then improve the survival rate of artificial releasing seed.
Above embodiment is only introduces preferred case of the present invention, to those skilled in the art, not deviating from any apparent changes and improvements of carrying out in the scope of spirit of the present invention, all should be regarded as a part of the present invention.
Claims (9)
1. improve a wild domesticating method for marine site, Guangdong rock salmon seed enhancement releasing survival rate, comprise the steps:
1) before enhancement releasing, put in a suitable place to breed by rock salmon fry and tame and docile in device in open country, described open country is tamed and dociled device and is provided with water inlet and delivery port, arranges wildly tame and docile water speed in device and flow to, with the Burden-Swimming Ability of KM of tame and docile experienced seed according to the water velocity in place of releasing and flowing to;
2) in tame and docile device out of office, bait thrower is under water set, throws live bait under water, to temper the ingestion ability of rock salmon seed;
3) harmful organisms is placed in tame and docile device out of office, the anti-prey ability of rock salmon seed of releasing with tame and docile white silk;
4) add wild similar in tame and docile device out of office, carry out preying on-anti-predation study tames and dociles and practices;
5) stone, submerged plant and floating plant is placed in tame and docile device out of office, to temper hiding ability and adapting to wild environment of seed of releasing.
2. wild domesticating method according to claim 1, is characterized in that, in described step 3), and every 1000 m
3place the harmful organisms of 1.0 ~ 2.0 kg.
3. wild domesticating method according to claim 2, is characterized in that, described harmful organisms is black porgy.
4. the method for wild domestication according to claim 1, is characterized in that, adds 1% ~ 2% wild similar in described step 4).
5. device is tamed and dociled in an aquatic animal open country, it is characterized in that, comprise domestication pool (1), the bait thrower under water (2) be located in domestication pool (1), be located at domestication pool (1) one end water inlet pipe (3), be located at the outlet pipe (4) of domestication pool (1) other end, the outlet being located at water inlet pipe and/or outlet pipe the other traffic organising plate (9) of import, be located at the outside high powered water pump (5) of domestication pool (1) and flow cavitation result case (7) and pass through movable branching rod (60) and stretch into current holes probe (6) in pond.
6. device is tamed and dociled in aquatic animal according to claim 5 open country, and it is characterized in that, the top of described traffic organising plate (9), middle part, bottom are all at least provided with a drainage to control hole, opens and close by what control this some holes the flow direction controlling current.
7. device is tamed and dociled in aquatic animal open country according to claim 5, it is characterized in that, is provided with water flow buffer plate (8) between described domestication pool (1) sidewall and traffic organising plate (9).
8. device is tamed and dociled in aquatic animal open country according to claim 5, it is characterized in that, described bait thrower is under water made up of pull rope (20), Sheng bait case (21) and case lid (22), and pull rope (20) one end is fixed on case lid (22), for opening case lid (22).
9. device is tamed and dociled in the aquatic animal open country according to any one of claim 5-8, and it is characterized in that, domestication pool (1) pool wall has link for fixed cage, removes the wall effect that becomes of fish.
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| CN108739543A (en) * | 2018-06-19 | 2018-11-06 | 天津农学院 | A kind of acclimation method improving the Bohai Offshore hippocampus seed enhancement releasing rate of recapture |
| CN110651740A (en) * | 2019-09-17 | 2020-01-07 | 孙治忠 | Anti-flow-rate ecological conservation (cultivation) technology |
| CN110710484A (en) * | 2019-09-24 | 2020-01-21 | 孙治忠 | Nondestructive proliferation and releasing rescue technology |
| CN112136747A (en) * | 2020-09-03 | 2020-12-29 | 中国科学院南海海洋研究所 | Proliferation and release fry cable bait motion training device and fry training method |
| CN112753635A (en) * | 2020-12-29 | 2021-05-07 | 中国水产科学研究院黄海水产研究所 | Wild domestication system and domestication method for seawater fish proliferation and releasing seedlings |
| CN112913725A (en) * | 2021-01-25 | 2021-06-08 | 上海海洋大学 | Wild training device and wild training method for black porgy |
| CN115039724A (en) * | 2022-06-30 | 2022-09-13 | 中国水产科学研究院淡水渔业研究中心 | Environment simulation system and fish domestication method |
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| CN115039724A (en) * | 2022-06-30 | 2022-09-13 | 中国水产科学研究院淡水渔业研究中心 | Environment simulation system and fish domestication method |
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