CN101703034B - Three-dimensional seedling cultivating method of octopus variabilis - Google Patents

Three-dimensional seedling cultivating method of octopus variabilis Download PDF

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Publication number
CN101703034B
CN101703034B CN2009102298103A CN200910229810A CN101703034B CN 101703034 B CN101703034 B CN 101703034B CN 2009102298103 A CN2009102298103 A CN 2009102298103A CN 200910229810 A CN200910229810 A CN 200910229810A CN 101703034 B CN101703034 B CN 101703034B
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octopus
spawning
dimensional
long
multilayer
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CN101703034A (en
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郑小东
钱耀森
王培亮
李琪
林祥志
杨建敏
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Ocean University of China
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Ocean University of China
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Abstract

The invention discloses a three-dimensional seedling cultivating method of octopus variabilis, which comprises the construction of a multi-layer artificial spawning ground in an indoor breeding pond for shading parents, the three-dimensional temporary culture of the octopus variabilis for inducing maturation and spawning, the spawn protection of the parent for hatching and the three-dimensional cultivating of larvae. Initial baits are the larvae of benthic crustaceans, cladocerans and the like. The artificial spawning ground can be divided into tile type, pipe type or shell type and formed by multi-layer staggered placement in the indoor breeding pond according to a certain way, thereby leading the parents of the octopus variabilis to have separate sufficient spawning and hatching space and effectively avoiding the phenomena of fight and eating of the octopus variabilis. The method can lead the temporary culture density of the parents to achieve 10-20 pieces/m3, lead the hatching rate of the larvae to achieve 75% and lead the culture density of the larvae to achieve 300-500 pieces/m3, avoid the eating phenomena of the parents and the larvae and realize the rapid growth of seedlings. The method is applicable to large-scale seedling breeding of the octopus variabilis.

Description

The method of the three-dimensional seed rearing of a kind of long octopus
Technical field
The present invention relates to a kind of method of octopus class seed rearing of aquaculture field, relate in particular to the method for the three-dimensional seed rearing of a kind of long octopus.
Background technology
Long octopus Octopus variabilis (Sasaki, 1929) belongs to Cephalopoda, Octopodida, and octopus section, octopus belongs to, and local name has horse octopus, long leg octopus, long pawl chapter etc., and coastal in China north and south all have a distribution.In recent years, along with long octopus exports Japan, Korea S in a large number, supply falls short of demand in market, and phenomenon was serious, and economic worth is constantly soaring, had become the important economic siphonopods in the north.Simultaneously, because the yellow Bohai Sea is fished for and put more effort, cause the slump of disastrous proportions of long octopus natural resources.Artificial breeding is protection and the effective means that increases long octopus stock number with releasing, and has urgency and realistic meaning.Octopus class fertilized egg is in hatching process, and close octopus has the ovum of protecting characteristic, by the habitat and the hatching place of fight protection oneself each other, and prevents from by other octopus fertilized egg to be eaten up.Because long octopus egg laying amount is lower, generally 70-100 grain ovum/, cause seed breeding to need parent more.Under the artificial environment, parent is each had independently breeds the space, to grow healthy and synchronous seed, simultaneously again can highdensity cultivation parent and the young become problem demanding prompt solution in the large-scale production of long octopus seed.
Summary of the invention
The purpose of this invention is to provide the method for the three-dimensional seed rearing of a kind of long octopus, it can satisfy the demand of prior art.
The method of the three-dimensional seed rearing of a kind of long octopus is characterized in that 1. making up multilayer artificial spawning field in the indoor raising of seedling pond, the long octopus parent of putting into is covered; 2. indoorly carry out three-dimensionally supporting temporarily, the long octopus parent of accelerating, long octopus parent is laid eggs and protects ovum and hatch, obtain the long octopus young; 3. make up three-dimensional young hapteron and cultivate the long octopus young.
The invention has the advantages that: 1. the spawning ground is long octopus accelerating, mating and the important place of laying eggs, and suitable space and color are long octopus select the to lay eggs important evidence on ground.Through verification experimental verification for many years, watt formula, tubular type and shell-type three class multilayer artificial spawning field best results, the breeding demand of can not only satisfy long octopus parent accelerating, laying eggs and protecting ovum, to improve seed quality and quantity, but also can three-dimensional temporary adopted parents' body, improve greatly and cultivate density, production operation facility, save cost, meet the requirement of scale seed breeding; 2. adopt aseptic nanometer U type pipe as three-dimensional young hapteron, simulated the ecological nest of long octopus, not only effectively avoid the generation with disease of adhering to of bacterium in the larval culture process, Ascidian, other multiple harmful animal thing, guarantee the healthy growth of seedling, and meet the ecotope of long octopus growth; The three-dimensional compound mode of this hapteron has satisfied the indoor raising of seedling demand, can significantly improve seed rearing density.
Embodiment
Below in conjunction with embodiment the present invention is described in further detail.
Embodiment
1, in the indoor raising of seedling pond, makes up multilayer artificial spawning field, the long octopus parent of putting into is covered
Multilayer artificial spawning field is made up of red brick and tile, black hollow tube or the shell oyster shell that is wider than 8cm in 15cm, shell of growing up, and is arranged in 6 20m 3The indoor raising of seedling pond in.Wherein, a watt formula spawning ground be by red fragment of brick as support, the multilayer octopus nest of red watt of 30cm * 20cm * 20cm size that is built into as the top, the orderly arrangement straggly of each nest.The tubular type spawning ground is to be that 5-10cm, length are that the black hollow tube 6-10 root of 30-50cm is one group and ties up and form scalariform or tower shape spawning ground by diameter, and each organizes hollow tube multilayer, staggered discharging, is three-dimensional, and it is consistent to go into water (flow) direction in placing direction and the pond; The shell-type spawning ground is to be embedded in the multilayer octopus nest that forms on the concrete column by the oyster shell greater than 15cm * 8cm (shell length * shell is wide), and the arrangement interlaced with each other of each octopus nest makes it fully occupy the water body space.During use, the octopus nest in this three classes spawning ground is top all to be lower than larval rearing water surface 20-30cm, can effective hidden long octopus parent, be difficult for being found, and guarantee that they occupy independent stable living space.
2, indoorly carry out three-dimensionally supporting temporarily, the long octopus parent of accelerating, long octopus parent is laid eggs and protects ovum and hatch, obtain the long octopus young
In the indoor raising of seedling pond, adopt three-dimensional spawning ground to support totally 86 of long octopus parents temporarily, shading, inflation, the flowing water cultivation, day quantity of exchanged water is total 2-3 times of supporting water body temporarily.Under the usual conditions, supporting density temporarily is 1-2/m 3, because the layer stereo structure is adopted in the spawning ground, the density of supporting temporarily of long octopus parent is brought up to 10-20/m 3The tubular type spawning ground is made up of the hollow tube of different size, and long octopus parent is preferred hiding in the pipe about diameter 10cm.Long octopus parent has comparatively strict requirement to hollow tube length and oyster shell size, seldom is hidden in pipe range less than in the hollow tube of 20cm or in the oyster shell of shell length less than 15cm.Indoor supporting temporarily in the accelerating process, main long octopus parent throw something and feed crab alive and the bivalve shellfish given.Night and morning, long octopus parent was ingested strongly, and daytime is seldom movable, hidden in hollow tube, oyster shell and brick and tile slit basically.Temperature of fry nursing pool is controlled at 22-26 ℃, and salinity is about 30.Support after 16 days temporarily, long octopus parent begins to lay eggs, and ovum is an output in batches.Long octopus ovum is bigger, is the eggplant shape, major diameter 13mm-20mm, wide footpath 3.5-5.5mm.Have 58 female octopus in the present embodiment and lay eggs, about 6000 of common property ovum.
Female octopus tool protects the ovum behavior, ingests hardly during protecting ovum.23-26 ℃ of hatching water temperature.Female octopus is moved into isolation cultivation in the nursery pond of hatching usefulness together with adopting egg apparatus and ovum group, avoid long octopus parent to cut one another's throat, the hatching of inflation flowing water, seawater salinity about 30; Through hatching in 50-70 days, obtain about 4500 of the young, incubation rate reaches 75%.
3, make up three-dimensional young hapteron and cultivate the long octopus young
At long octopus embryo rupture of membranes and before going out, will cultivate the nursery pond that the young uses earlier and be ready to.It is to be put by aseptic nanometer U type pipe multilayer to form, best with black or grey chromatic effect, caliber 2-5cm, pipe range 10-20cm, 3-5 root are one group and tie up, and form tower shape or scalariform, multi-layer intercrossed the putting of many group U type pipes, make full use of seedling water, the placing direction of pipe is consistent with the Inlet and outlet water direction, and hapteron is top to be lower than larval rearing water body surface layer 20-30cm.The long octopus young of hatching is moved in the pond, and the young can be attached in the pipe very soon, and cultivating density is 300-500/m 3Adopt artemia nauplii, the ocean shell-fish young and cladocera as the open-mouthed bait long octopus young of throwing something and feeding, it is effective to throw something and feed with juvenile crab and cladocera, and halogen worm effect is taken second place.Normal temperature aerated flow water planting is educated.Through cultivation in 20-30 days, progressively carry out the bait conversion, use young crab and ice fresh bait material instead.Cultivate in this way, the young is comparatively healthy, and survival rate is more than 50%, and after particularly the bait conversion finished, young growth was vigorous, and survival rate is more than 80%.Through 30-50 days indoor cultures, long octopus young body weight reached 5-8g, can carry out intermediate rearing or released.

Claims (1)

1. the method for the three-dimensional seed rearing of long octopus is characterized in that 1. making up multilayer artificial spawning field in the indoor raising of seedling pond, and the long octopus parent of putting into is covered; 2. indoorly carry out three-dimensionally supporting temporarily, the long octopus parent of accelerating, long octopus parent is laid eggs and protects ovum and hatch, obtain the long octopus young; 3. make up three-dimensional young hapteron and cultivate the long octopus young, described multilayer artificial spawning field is a watt formula spawning ground, tubular type spawning ground or shell-type spawning ground; Watt formula spawning ground red fragment of brick of serving as reasons is a support, the multilayer octopus nest of red watt of 30cm * 20cm * 20cm size that is built into as the top, the orderly arrangement straggly of each nest; The tubular type spawning ground is to be that 5-10cm, length are that the black hollow tube 6-10 root of 30-50cm is one group and ties up and form scalariform or tower shape spawning ground by diameter, and each organizes hollow tube multilayer, staggered discharging, is three-dimensional, and it is consistent to go into water (flow) direction in placing direction and the pond; The shell-type spawning ground is to be embedded in the multilayer octopus nest that forms on the concrete column by the shell oyster shell that is wider than 8cm in 15cm, shell of growing up, the arrangement interlaced with each other of each octopus nest, and the octopus nest in three class spawning grounds is top all to be lower than larval rearing water surface 20-30cm; Described three-dimensional young hapteron is put by aseptic nanometer U type pipe multilayer and is formed, this pipe is black or grey, caliber 2-5cm, pipe range 10-20cm, the 3-5 root is one group and ties up formation tower shape or scalariform, multi-layer intercrossed the putting of many group U type pipes, the placing direction of pipe is consistent with the Inlet and outlet water direction, and hapteron is top to be lower than larval rearing water body surface layer 20-30cm.
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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102160531B (en) * 2011-05-21 2012-10-24 中国海洋大学 Temporary culture and ripening promotion method for octopus vulgaris parents and device used in same
CN102669021B (en) * 2012-05-01 2013-11-27 中国海洋大学 Method for temporary culture, egg laying and egg protecting of octopus variabilis sasaki and device for method
CN103392640B (en) * 2013-07-18 2014-11-12 大连海洋大学 Factory breeding method for Octopus variabilis
CN106035244B (en) * 2016-06-23 2018-09-25 中国科学院水生生物研究所 The enclosure scale breeding method in situ of cladocera in a kind of freshwater lake
CN108293926A (en) * 2018-01-29 2018-07-20 中国海洋大学 A kind of biological breeding method of the long octopus young

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CN101455188A (en) * 2009-01-05 2009-06-17 宁波大学 Artificial seedling-rearing method of octopus
CN201308055Y (en) * 2008-10-22 2009-09-16 张弼 Octopus nest

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CN201308055Y (en) * 2008-10-22 2009-09-16 张弼 Octopus nest
CN101455188A (en) * 2009-01-05 2009-06-17 宁波大学 Artificial seedling-rearing method of octopus

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