CN101642063A - Bottom sowing enrichment method of pecten yesoensis - Google Patents

Bottom sowing enrichment method of pecten yesoensis Download PDF

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Publication number
CN101642063A
CN101642063A CN200910013324A CN200910013324A CN101642063A CN 101642063 A CN101642063 A CN 101642063A CN 200910013324 A CN200910013324 A CN 200910013324A CN 200910013324 A CN200910013324 A CN 200910013324A CN 101642063 A CN101642063 A CN 101642063A
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broadcast
seed
seedling
yesoensis
pecten
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薛东宁
武志强
吴厚记
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DALIAN ZHANGZIDAO FISHERY GROUP Co Ltd
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DALIAN ZHANGZIDAO FISHERY GROUP Co Ltd
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Priority to CN200910013324A priority Critical patent/CN101642063A/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/80Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
    • Y02A40/81Aquaculture, e.g. of fish

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Abstract

The invention relates to a bottom sowing enrichment method of pecten yesoensis, and the bottom sowing time comprises November, December and March-April; the sampling measurement of bottom sowing seedscomprises the following steps: measuring the total amount of the bottom sowing seeds through sampling before November 30th, wherein the number of the seeds with the shell height of more than 3cm accounts for 90 percent, the number of the seeds with the shell height of 2.7-2.99cm accounts for not more than 10 percent, and the number of the seeds with the shell height of less than 2.7cm accounts for not more than 5 percent; measuring the total amount of the bottom sowing seeds through sampling on December 1st-December 20th, wherein the number of the seeds with the shell height of 3cm accounts for 95 percent, the number of the seeds with the shell height of 2.7-2.99cm accounts for not more than 5 percent, and the number of the seeds with the shell height of less than 2.7cm accounts for not more than 5 percent; and measuring the total amount of the bottom sowing seeds through sampling after December 21st, wherein the number of the seeds with the shell height of 3cm accounts for 100 percent, and the number of the seeds with the shell height of less than 2.99cm accounts for not more than 5 percent. The bottom sowing enrichment method of pecten yesoensis ensures large seeds to be screened out when in bottom sowing and greatly improves the survival rate of bottom sowing enrichment; after bottom sowing, the pecten yesoensis grows at high speed, individuals grow large, and the rate of recapture is high.

Description

Bottom sowing enrichment method of pecten yesoensis
Technical field
The present invention relates to a kind of shellfish enrichment procedure, enrichment procedure is broadcast at especially a kind of end of Patinopecten yessoensis.
Background technology
Patinopecten yessoensis is one of good aquaculture kind in the world shellfish, and economic worth is very high.At present, adopt the lantern cylinder mould to culture usually, this method need the operation of falling the cage, and one-time investment is big; Though and shackle culture method cost is low, operation is taken a lot of work, and is also broken off with the fingers and thumb disconnected vestibule in the bigger sea area of stormy waves easily or twists into two parts the ear rope, thereby cause damage.Simultaneously, the Patinopecten yessoensis that these methods are formed exists great gap with the Patinopecten yessoensis of forming naturally on quality, can't satisfy expense person's demand of pursuing high quality, ecosystem product day by day.
Summary of the invention
Improve the bottom sowing enrichment method of pecten yesoensis of survival rate when in view of this, main purpose of the present invention is a kind of reducing cost is provided.
For reaching above-mentioned purpose, the invention provides a kind of bottom sowing enrichment method of pecten yesoensis, wherein,
Between the sowing time end: November to December and 3~April;
Broadcast seed at the bottom of the sampling measurement: the seed total amount is broadcast at the end of sampling measurement before November 30, accounts for 90%, 2.7~2.99cm more than the high 3cm of shell and is no more than 10%, and the following seed quantity of 2.7cm is no more than 5%; The seed total amount is broadcast at the end of sampling measurement on the 20th 1~December of December, accounts for 95%, 2.7~2.99cm more than the high 3cm of shell and is no more than 5%, and the following seed quantity of 2.7cm is no more than 5%; The seedling total amount is broadcast at the end of sampling measurement after December 21, accounts for 100% more than the high 3cm of shell, and the following seed quantity of 2.99cm is no more than 5%.
Described seed sampling measurement step, at first number goes out to take out target seed sum and tells the above seedling amount of the high 3cm of shell, with the above seedling amount of 3cm divided by 0.9, total is again divided by target seedling amount sum, calculate the shared percentage of the above seed of 3cm, deduct the above seed proportion of 3cm with 100% again, if total is equal to or less than 5%, this seed can be broadcast at the end, otherwise then can not broadcast at the end.
Broadcast seed and carry out between the date of seeding end at the described end, and district's natural temperature is broadcast at 3~16 ℃ in the end.
The described end broadcast distinguish broadcast at the bottom of the inner region with outskirt at the bottom of broadcast, broadcast at the bottom of the inner region be littoral suspended longline farming the zone and near broadcast at the bottom of the sea area, broadcasting at the bottom of the outskirt is to broadcast at the bottom of the sea area, off-lying sea;
To broadcast seedling density be 5500~7500 pieces/mu to the outskirt broadcast of the end first, and having broadcast the district, to broadcast seedling density be 5500 pieces/mu, and it is 5000 pieces/mu that inner region is broadcast seedling density.
Broadcast district fixed point partition and defend and lead the location at the described end, and the area in district is broadcast at the measuring and calculating end, according to oceanic area and seed to be broadcast, and the seed quantity that calculating makes a trip in the zone will sow, in the zone of delimiting, the round seedling of broadcasting.
District's outward flange is broadcast when broadcasting seedling in the described end, vacates the isolation strip.
Broadcast with ship and carry out at the described end, and described isolation strip is 500 seconds isolation strip.
The present invention has following beneficial effect as can be seen from the above technical solutions:
1, traditional Patinopecten yessoensis raft formula is formed change into broadcasting at the bottom of the sea area and formed, can reduce every cost of people in the breeding process, power, thing by bottom sowing enrichment method of pecten yesoensis of the present invention, thereby increase economic efficiency, can also improve the sea area and utilize degree, sufficiently and reasonably utilize the sea area resource;
2, according to broadcasting the seedling time, control the shared ratio of each size seedling seed, account for more than 90% with the seed more than the high 3cm of shell, easy operating in actual production can greatly improve the end and broadcast the propagation survival rate, further reduces production costs;
3, according to broadcasting the seedling time, pass through sampling measurement, filtering out seed up to specification exactly carries out the end and broadcasts, guarantee that the individual specification of seed all reaches more than the 3.0cm when broadcasting seedling, not only improve the end and broadcast the propagation survival rate, and after big seed up to specification broadcast the end of at, accommodative ability of environment was strong, ingestion ability is strong, and the scallop fast growth, individual growth is big, the rate of recapture is high;
4, the round seedling of broadcasting shortens the used time of seedling of broadcasting, and reduces the loss that seed is caused because of intermediate link;
5, broadcast district's outward flange the end of at and reserve 500 seconds space, be convenient to distinguish kind and the time of broadcasting seedling, also can prevent to run seedling and the loss that causes seed as the isolation strip;
What 6, suitably increase outskirt broadcasts seedling density, utilizes degree thereby improve the sea area, sufficiently and reasonably utilizes the sea area resource, greatly reduces production costs;
7, owing to be to form under field conditions (factors), human intervention is reduced to minimum, so the smooth shellfish pure natural of the shrimp of bottom sowing culture, mouthfeel pollution-free, product are good, also can be by natural selection, the quality and the quality of raising Patinopecten yessoensis;
8, since the Patinopecten yessoensis broadcast of the end in the seabed by self-sow; just will inevitably lay eggs to breeding season; so just increased the quantity of Patinopecten yessoensis in the sea area; purpose to marine site natural biology resource has played protection and improved has also played positive effect to the Patinopecten yessoensis population quantity that enlarges in the whole marine site.
Embodiment
The sowing aquaculture method comprises that mainly selecting to broadcast seedling time, the end broadcasts seed size, the end and broadcast district's environment at the bottom of the Patinopecten yessoensis, and harmful organisms is removed, broadcasts seedling-growing method and density, harvest time, adopted method for catching, the end broadcasts contents such as district's management.
Below the invention will be further described.
Between the sowing time end October then to December, and after the beginning of spring, to April, natural temperature is at 3~16 ℃, weather conditions are good, no sleet, no high sea; Especially in November to December, 3~April, this moment water temperature that Patinopecten yessoensis is broadcast at the end is more favourable, it is short that back spat seedling-slowing stage is broadcast at the end, the survival rate height, during other, because of cold weather, water temperature are lower, generally the end, do not broadcast.
According to broadcasting the seedling time, broadcast seed at the bottom of the sampling measurement, if November 20 to sampling measurement seed on November 30, then account for 90%, 2.7~2.99cm/ piece more than the high 3cm/ of shell piece and account for 10%; If December 1, then accounted for 95%, 2.7~2.99cm/ piece more than 3cm/ piece and account for 5% to sampling measurement seed on December 20; If sampling measurement seed after December 21 then accounts for 100% more than 3cm/ piece.In a word, when broadcasting seedling, the individual specification of seed all reaches more than the 3.0cm, because the effect that seed size directly has influence on propagation is broadcast at the end, broadcast big seed and can greatly improve the end and broadcast the propagation survival rate at the end, and the seed that the end is broadcast is big more, after broadcasting the end of at, ability such as accommodative ability of environment is strong, and is disease-resistant, as to ingest is strong, the scallop growth rate is fast more, individual growth is big more, and the rate of recapture is high more.In addition, the seed outward appearance, shell is intrinsic form and color and luster, does not have deformity, does not have breakage, and other shellfish of nothing, inanimate object adhere on the seedling shell, and seed is energetic, and shell closes or parts a little, and assassination swashs the back closure, and shellfish quantity is no more than 10% in vain, and the lime worm is no more than 10%.
The seed that the end is broadcast carries out sampling measurement, to determine whether seed reaches standard:
1) the seed total amount is broadcast at the end of sampling measurement before November 30, must reach 90% more than the high 3cm of shell, contain 90%, 2.7~2.99cm and be no more than 10%, the outer seed quantity of standard be no more than 5% be considered as up to standardly, the outer seed of standard is meant the seed that the high 2.7cm of shell is following here;
2) the seed total amount is broadcast at the end of sampling measurement between 1~December 20 December, must reach 95% more than the 3cm, contain 95%, 2.7~2.99cm and be no more than 5%, the outer seed quantity of standard be no more than 5% be considered as up to standardly, the outer seed of standard is meant the seed that 2.7cm is following here;
3) the seedling total amount is broadcast at the end of sampling measurement after December 21, must reach 100% more than the 3cm, is zero below the 2.99cm, the outer seed quantity of standard be no more than 5% be considered as up to standardly, the outer seed of standard is meant the seed that 2.99cm is following here;
According to concrete sampling measurement situation, the production technology of seed, broadcast factors such as seedling time, in above 3 stages, when seed quantity is no more than 15%, 10%, 5% respectively outside the standard, also can be considered up to standard.
The seed of sampling measurement in the above-mentioned time, as do not reach above standard, do not carry out the end and broadcast.It is as follows whether the check seed can end broadcast mode:
With the phase I is example, at first number goes out to take out target seed sum and tells the above seedling amount of 3cm, with the above seedling amount of 3cm divided by 0.9, total is again divided by target seedling amount sum, calculate the shared percentage of the above seed of 3cm, deduct the above seed proportion of 3cm with 100% again, if total is equal to or less than 5%, this seed can be broadcast at the end, otherwise then can not broadcast at the end.Support temporarily planes in conjunction with three grades, advance the cage time with different, settle the standard respectively according to different seedlings source.Different seedlings source, difference should not be advanced the seed of cage time on average settles the standard.Second stage, phase III take out the mark check system and retrodict successively.This method is easy to grasp, easy operating in actual production, like this, according to broadcasting the seedling time,, calculate exactly by sampling measurement, can realize that in actual production seed all reaches the suitable end and broadcasts specification, the individual specification of seed all reaches more than the 3.0cm when promptly broadcasting seedling, thereby greatly improves the survival rate after the end is broadcast, and further reduces production costs again.
Broadcast seed or use self-produced seed or use the buying seed at the end, all identical to time, the standard of its sampling measurement.
If purchase seed, broadcast the transportation of seed strange land and adopt the perforated ship transportation without exception at the end, and the dress seedling case of going on board will reach storehouse at present, neatly puts, and will put down gently when putting.There is the cargo ship of aerobic condition will remain water supply and oxygenation, keeps the cabin inner aqueous layer consistent with the height of dress seedling case; The cargo ship that does not have aerobic condition treats that the seedling case begins water filling once when occupying three layers, or under the seed storehouse 1 hour with interior must water filling once, keep and drain immediately after 5 minutes, fills with water again after the seedling case is put certain altitude keeps the continual circulation of cabin maritime interior waters, until the seed deliver from vault successively.As it is slow to adorn seedling speed, do not have the cargo ship of aerobic condition must water filling in 40 minutes once and drain, reveal overlong time to avoid seed to do.
The quality of breeding blanket substrate is most important to the effect of propagation, and the big and ooze substrate of hardness seriously influences with existence the spat growth, and therefore, the comparatively soft substrate of grit, husky mud, silt particle is selected in the breeding blanket, at the bottom of the reef, carefully substrate is not suitable at the bottom of the mud etc.; Granule content below 125 microns is no more than 30%, good fishing ground more than 1.0 millimeters particle account for 68%.Bait is abundant, mainly is benthic diatom, and water cleaning is pollution-free, does not have a large amount of fresh water and injects, and flowing water is unimpeded, current direction repeatedly, fluctuation tidal sea stream is regular, transparency is 6.2~7.5 meters, the depth of water is more than 8 meters.The depth of water should not be shallow excessively; crossing the simple and easy stormy waves that is subjected to impacts; cause the substrate structure to change; spat is played pendulum, influence existence and the growth of spat, even cause that spat is piled up, the disembarkation of tempering; have a strong impact on growth and the existence of spat; in addition, because the rolling friction that is beaten by wind and waves, a large amount of lopsided shellfishes and the phenomena of mortality take place in regular meeting.The breeding blanket water temperature remains on 5~23 ℃ all the year round, 12~21 ℃ of the suitableeest growth water temperatures; Suitable salinity 25~40 ‰, the suitableeest growth salinity 30~33 ‰; PH value is 7.5~8.5.
Harmful animal is removed before broadcasting in the end.End sowing aquaculture is different from suspended longline farming, and scallop is broadcast at the seabed self-sow in the end, certainly will will be subjected to the threat of harmful organisms, and harmful organisms comprises starfish, sea urchin, conch, crab class etc.Therefore, remove the harmful organisms in the sea area before broadcasting the end of at,, guarantee the results of scallop to guarantee the survival rate of scallop.The end adopts with underwater ship before broadcasting and catches, netting gear, lure method such as angle to remove starfish and other harmful organisms, with foreign material and harmful organisms such as stone subsidiary in the Patinopecten yessoensis trawlnet process, installs to land and handles.In addition, the end, be ready to required instrument equipment before broadcasting: irony or the wooden rack of falling the seedling, liner 2.5cm etting, drag for seedling bamboo strainer, dress seedling case, net bag, high-power dress seedling ship, tarpaulin, water pipe, shower nozzle etc.
To the propagation sea area partition of at first will fixing a point, defend and lead the location, i.e. satellite navigation location, the area in district is broadcast at the measuring and calculating end, according to oceanic area and wait to broadcast seed and quantitatively calculate the seed quantity that the ship of making a trip in the zone will be sowed.Carry the seedling ship in the position of delimiting, come and go operation lentamente and broadcast seedling, broadcast seedling, shorten the used time of seedling of broadcasting, reduce the loss that seed is caused because of intermediate link than single race ship.Come and go when broadcasting seedling, calculate the position that seed arrives the seabed, regulate the ship running position, regulate and broadcast the seedling interval according to the flow rate of water flow and the flow direction.Broadcast seedling and want evenly, strict control density is caught the flow direction, is preferably in stormy waves less opportunity.
When broadcasting district's outward flange the end of at and broadcasting seedling, reserve 500 seconds space, as the isolation strip, the effect one of isolation strip is kind and the time of broadcasting seedling in order to distinguish, the 2nd, and the loss that causes seed in order to prevent to run seedling.Broadcast and need not the isolation strip between the district at the end of different year, isolates graticule but must indicate.Broadcast different seeds at the bottom of the zones of different, forbid mixed seeding,, need the record boundary line for future reference if the same area is broadcast seedling more than 2 kinds.Broadcast seedling according to broadcasting the seedling course line and the flow direction and flow velocity, in general, current are bigger when broadcasting seedling, vacate certain distance, according to flow velocity with flow to calculate the position that seed arrives the seabed, regulate the ship running position, prevent to broadcast at the bottom of the seed to retrodeviate from broadcasting the zone.The Miaos' base of broadcasting of broadcasting both sides, seedling boat deck equates that originally carry out simultaneously both sides when broadcasting seedling, but will carry out successively in order, gets hold of every ship and should broadcast the case number, accomplishes evenly to broadcast seedling, the seed that cleaning in time is scattered.
At the bottom of the Patinopecten yessoensis sowing aquaculture by dial the seedling place divide broadcast at the bottom of the inner region with outskirt at the bottom of broadcast two kinds, inner region is meant the zone and near the sea area of littoral suspended longline farming, outskirt is meant the sea area, off-lying sea, usually, the diver can carry out the diving operation zone and be called inner region, and the deepwater regions that the diver can not carry out diving operation is called outskirt.According to inner region, outskirt, what suitably increase outskirt broadcasts seedling density, utilizes degree thereby improve the sea area, sufficiently and reasonably utilizes the sea area resource, reduces production costs.
Inner region is broadcast seedling, and used ship quantity is arranged 3~4 people on every ship between 2~3.When broadcasting seedling, the place is slowly poured seed in the water at the on-hook side of a ship, presses area and calculates, and disseminates back and forth, and outside the lining was arrived, the west was arrived in east, but wants the strict quantity of broadcasting seedling of controlling well.Broadcast Miao Shiyao and get hold of flowing water, sow evenly as far as possible.Concrete analysis as the case may be, adjust broadcast seedling at interval, broadcast seedling speed, guarantee to broadcast seedling density the defined area in, avoid occurring also not reaching the phenomenon that does not just have seedling to broadcast when broadcasting the round time number of seedling.
Outskirt is broadcast seedling, is generally finished by the high-power ship, and dress is stacked dress seedling case or dress seedling net bag neatly during seedling, can not stack too highly, prevents the damage to seed that causes because of extruding; Dress seedling case or the dress seedling net side of wrapping cover insulation with tarpaulin, and incessantly it are watered equably to preserve moisture with shower nozzle; Dress seedling case or putting of dress seedling net bag will prevent pollution seeds such as greasy dirt as far as possible away from the cabin; The end, broadcast in the transportation of seed, carefully looks after seed, and the work of watering can not stop, and broadcasts the seedling place up to arrival; Under the situation of conditions permit, ship improves the speed of a ship or plane as much as possible, reduces haulage time.
Outskirt is broadcast before the seedling, according to the end broadcast the district area, broadcast seedling density, the factors such as seedling quantity, flow velocity of broadcasting formulate and broadcast seedling course, the speed of a ship or plane, broadcast seedling time number and broadcast the seedling duration.Substantially to broadcast seedling consistent with inner region for the method for broadcasting seedling, select neap, slug flow, stormy waves to operate in the less time, pressing area calculates, disseminate seedling back and forth, seed is broadcast seedling time number, broadcasts seedling duration etc. and finish by prior formulation, the phenomenon that does not just have seedling to broadcast when avoiding occurring also not reaching time number of broadcasting that seedling comes and goes guarantees to broadcast seedling density.
Just broadcast with regard to the density at the end, it is more that density is rare more, growth rate is fast more, individuality is looked big, and survival rate is high more, but density is rare excessively, and resource disperses to be difficult for adopting to catch, and broadcast the sea area and can not be fully used at the end, causes sea area waste, production cost to increase.Therefore, from total economic benefit, broadcast at the bottom of the Patinopecten yessoensis and adopt as lower density:
1) marine site broadcast, the end first: the outskirt deep water sea area is broadcast seedling density and is about 5500~7500 pieces/mu, and the off-lying sea was not carried out the end and broadcast owing to be deep water sea area newly developed, it is darker to add water body, self-purification capacity is stronger, broadcasts seedling density so outskirt can strengthen, and reaches 7500 pieces/mu;
2) broadcast the district: broadcasting seedling density is 5500 pieces/mu;
3) inner region: broadcasting seedling density is 5000 pieces/mu.
In addition, visual breeding blanket natural conditions, seed size etc. adjust slightly, and outer newly developed area, old liberated area be all by 5500 pieces/mu, broadcast at the bottom of 5000 pieces/mu of the inner regions.
Broadcast the zone and establish special personnel and ship at the end, carries out daily nurse.Forbid that fishing boat trawlnet ship enters the breeding blanket, avoid destroying substrate, damage spat, forbid culturing ship and topple over foreign material to the breeding blanket.Carry out the harmful organisms investigation, in time clear up harmful organisms; Carry out follow-up investigation, regular, fixed district is detected, and grasps distribution density, growth rate, survival rate, and carries out temperature measurement etc.
Vegetative period is about more than 24 months, and individual specification reaches commercial specification, as more than 8 centimetres, gathers in the crops, and adopts the instrument shallow water of catching and generally uses underwater ship, and deep water uses power ship boom trawlnet.
In sum, bottom sowing enrichment method of pecten yesoensis of the present invention has plurality of advantages.At first, the end broadcasts 1 year, 2 years, and the Patinopecten yessoensis survival rate reaches more than 77.5% approximately, even can reach more than 82.5%.The Patinopecten yessoensis bottom sowing culture can fully, reasonably utilize the sea area resource, greatly reduces aquaculture cost, thereby increases economic efficiency.Secondly, Patinopecten yessoensis has alleviated the personnel's that culture labour intensity, has saved the labour.Also have, the smooth shellfish of the shrimp of bottom sowing culture is owing to be the seabed self-sow, so pure natural is pollution-free, the mouthfeel of product is good, is of high nutritive value, and helps selling.At last, because the Patinopecten yessoensis that the end is broadcast just will inevitably be laid eggs to breeding season at the seabed self-sow, has so just increased the quantity of Patinopecten yessoensis in the sea area, when improving the output value, also the Patinopecten yessoensis population quantity that enlarges in the whole marine site has been played positive effect.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.

Claims (7)

1, a kind of bottom sowing enrichment method of pecten yesoensis is characterized in that,
Between the sowing time end: November to December and 3~April;
Broadcast seed at the bottom of the sampling measurement: the seed total amount is broadcast at the end of sampling measurement before November 30, accounts for 90%, 2.7~2.99cm more than the high 3cm of shell and is no more than 10%, and the following seed quantity of 2.7cm is no more than 5%; The seed total amount is broadcast at the end of sampling measurement on the 20th 1~December of December, accounts for 95%, 2.7~2.99cm more than the high 3cm of shell and is no more than 5%, and the following seed quantity of 2.7cm is no more than 5%; The seedling total amount is broadcast at the end of sampling measurement after December 21, accounts for 100% more than the high 3cm of shell, and the following seed quantity of 2.99cm is no more than 5%.
2, bottom sowing enrichment method of pecten yesoensis according to claim 1, it is characterized in that, described seed sampling measurement step, at first number goes out to take out target seed sum and tells the above seedling amount of the high 3cm of shell, uses the above seedling amount of 3cm divided by 0.9, total is again divided by target seedling amount sum, calculate the shared percentage of the above seed of 3cm, deduct the above seed proportion of 3cm with 100% again, if total is equal to or less than 5%, this seed can be broadcast at the end, otherwise then can not broadcast at the end.
3, bottom sowing enrichment method of pecten yesoensis according to claim 1 and 2 is characterized in that, broadcast seed and carries out between the date of seeding end at the described end, and district's natural temperature is broadcast at 3~16 ℃ in the end.
4, bottom sowing enrichment method of pecten yesoensis according to claim 3 is characterized in that, the described end broadcast distinguish broadcast at the bottom of the inner region with outskirt at the bottom of broadcast, broadcast at the bottom of the inner region be littoral suspended longline farming the zone and near broadcast at the bottom of the sea area, broadcasting at the bottom of the outskirt is to broadcast at the bottom of the sea area, off-lying sea;
To broadcast seedling density be 5500~7500 pieces/mu to the outskirt broadcast of the end first, and having broadcast the district, to broadcast seedling density be 5500 pieces/mu, and it is 5000 pieces/mu that inner region is broadcast seedling density.
5, bottom sowing enrichment method of pecten yesoensis according to claim 4, it is characterized in that, broadcast district fixed point partition and defend and lead the location at the described end, the area in district is broadcast at the measuring and calculating end, according to oceanic area and seed to be broadcast, the seed quantity that calculating makes a trip in the zone will sow in the zone of delimiting, comes and goes and broadcasts seedling.
6, bottom sowing enrichment method of pecten yesoensis according to claim 5 is characterized in that, district's outward flange is broadcast when broadcasting seedling in the described end, vacates the isolation strip.
7, bottom sowing enrichment method of pecten yesoensis according to claim 6 is characterized in that, broadcast with ship and carries out at the described end, and described isolation strip is 500 seconds isolation strip.
CN200910013324A 2009-08-21 2009-08-21 Bottom sowing enrichment method of pecten yesoensis Pending CN101642063A (en)

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Cited By (7)

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Publication number Priority date Publication date Assignee Title
CN101849518A (en) * 2010-06-01 2010-10-06 大连獐子岛渔业集团股份有限公司 Semi-automatic bottom sowing device
CN102726325A (en) * 2012-03-31 2012-10-17 大连獐子岛渔业集团股份有限公司 Bottom-sowing multiplication method for comb shells
CN103229735A (en) * 2013-04-07 2013-08-07 福建省水产研究所 Method for estimating survival rate of babylonia lutosa in sea area
CN103238542A (en) * 2013-05-17 2013-08-14 琼海时达渔业有限公司 Bottom sowing culture method of giant clams
CN103734059A (en) * 2014-01-08 2014-04-23 海阳富瀚海洋科技有限公司 Artificial fish reef bottom sowing planting device
CN106665439A (en) * 2016-12-30 2017-05-17 中国水产科学研究院黄海水产研究所 Sea-area attached shellfish proliferation instrument and proliferation method
CN110089463A (en) * 2019-04-11 2019-08-06 浙江省海洋水产研究所 Outstanding towed seedling release device

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101849518A (en) * 2010-06-01 2010-10-06 大连獐子岛渔业集团股份有限公司 Semi-automatic bottom sowing device
CN102726325A (en) * 2012-03-31 2012-10-17 大连獐子岛渔业集团股份有限公司 Bottom-sowing multiplication method for comb shells
CN103229735A (en) * 2013-04-07 2013-08-07 福建省水产研究所 Method for estimating survival rate of babylonia lutosa in sea area
CN103229735B (en) * 2013-04-07 2014-07-23 福建省水产研究所 Method for estimating survival rate of babylonia lutosa in sea area
CN103238542A (en) * 2013-05-17 2013-08-14 琼海时达渔业有限公司 Bottom sowing culture method of giant clams
CN103238542B (en) * 2013-05-17 2014-09-17 琼海时达渔业有限公司 Bottom sowing culture method of giant clams
CN103734059A (en) * 2014-01-08 2014-04-23 海阳富瀚海洋科技有限公司 Artificial fish reef bottom sowing planting device
CN103734059B (en) * 2014-01-08 2015-09-23 山东富瀚海洋科技有限公司 Seed device is broadcast at the bottom of a kind of artificial fish shelter
CN106665439A (en) * 2016-12-30 2017-05-17 中国水产科学研究院黄海水产研究所 Sea-area attached shellfish proliferation instrument and proliferation method
CN110089463A (en) * 2019-04-11 2019-08-06 浙江省海洋水产研究所 Outstanding towed seedling release device

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Application publication date: 20100210