CN101692805B - Method for collecting rotifers, Cladocera and copepods zooplankton - Google Patents
Method for collecting rotifers, Cladocera and copepods zooplankton Download PDFInfo
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- CN101692805B CN101692805B CN 200910036288 CN200910036288A CN101692805B CN 101692805 B CN101692805 B CN 101692805B CN 200910036288 CN200910036288 CN 200910036288 CN 200910036288 A CN200910036288 A CN 200910036288A CN 101692805 B CN101692805 B CN 101692805B
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Abstract
本发明涉及一种轮虫类、枝角类与桡足类浮游动物的采集方法，属于鱼类养殖技术领域。其包括以下采集步骤：选定水体中浮游动物密度在10个/mL以上的河道、沟渠或池塘等采集水域；固定采集装置并启动潜水泵，使水泵进水口离水面30～50cm，启动水泵后每1～2小时收集一次浮游动物；将收集的浮游动物根据不同用途，用不同网目筛绢进行分离并用干净池塘水进行清洗1～3遍。本发明采用的装置结构简单、取材容易、使用方便，可充分利用各种淡水水体中自然繁殖而且容易再生的天然浮游动物资源，不仅大大降低了劳动强度，也适合在静水、缓流水域及大小不同水体中使用，具有高效、经济、实用等特点。
The invention relates to a method for collecting zooplankton of rotifers, cladocerans and copepods, and belongs to the technical field of fish farming. It includes the following collection steps: selecting collection waters such as rivers, ditches or ponds with a zooplankton density of more than 10/mL in the water body; fixing the collection device and starting the submersible pump so that the water inlet of the pump is 30-50 cm away from the water surface, and after starting the pump Collect zooplankton every 1 to 2 hours; separate the collected zooplankton with different mesh sieves according to different purposes, and wash 1 to 3 times with clean pond water. The device adopted in the present invention has simple structure, easy material acquisition, and convenient use, and can make full use of natural zooplankton resources that reproduce naturally and easily regenerate in various fresh water bodies, not only greatly reducing labor intensity, but also suitable for use in still water, slow-flow water areas and large and small Used in different water bodies, it has the characteristics of high efficiency, economy and practicality.
Description
Technical field
The present invention relates to the collecting method of a kind of rotifers, cladocera and copepods zooplankton, belong to freshwater fish cultural technique field.
Background technology
Rotifers in the zooplankton (Rotifera) is a kind of biological feed of crucial importance or even irreplaceable in the seed cultivation process in fresh water fishery is produced; And cladocera (Cladocera) and copepoda zooplanktons such as (Copepoda) because of its comprehensive nutrition, be rich in unsaturated fatty acid, become the good bait of fish; It is as active bait, polluted water not, and be that some famous and precious fish sexual glands are induced ripe nutrition good recipe, enjoy raiser's favor.
The zooplankton fertility is strong, distribution is wide, adaptive capacity is strong, in each river course, irrigation canals and ditches, pond distribution is arranged all.At present, what generally adopt is to drag by craft with the zooplankton string bag to gather, and has so just caused big, the consuming time length of intensity and the little shortcoming of pickup area of work; And by the screen frame collection pickup area is very limited with large-scale current generator, in little water body, can't use.
Summary of the invention
The object of the present invention is to provide and a kind ofly can overcome the defective that labour intensity is big, pickup area is little in existing rotifers, cladocera and the copepods zooplankton gatherer process; Suction filtration by high powered water pump forms circulating water flow, by the mode that the filtration of zooplankton net is collected, not only greatly reduces labour intensity and also is adapted at using in hydrostatic, unhurried current waters, the water body that varies in size.
According to technical scheme provided by the invention, the collecting method of a kind of rotifers of the present invention, cladocera and copepods zooplankton, adopt following acquisition step:
1, the selected water body of gathering is chosen zooplankton density in the water body in 10/ waters such as river course, irrigation canals and ditches or pond more than the ml.
2, fixture and start water pump fixing harvester in selected river course, irrigation canals and ditches or waters, pond makes dried up 30～50cm of immersible pump water inlet, starts behind the water pump per 1～2 hour and collects a zooplankton.
3, the screening of zooplankton, cleaning
The zooplankton of collecting according to different purposes, will be collected zooplankton and adds clean pond water, and the volume ratio of described clean pond water and zooplankton is 1: 1; Carry out separating and filtering with 60～150 purpose bolting silk nets, and clean 1～3 time with clean pond water.
Described zooplankton is rotifers (Rotifera), cladocera (Cladocera) and copepoda (Copepoda).
Described harvester is made up of fixed mount 1, high-power submerged pump 2, collection net cage 3 and spud pile 4.
Described high-power submerged pump 2 is fixed on the fixed mount 1, and described collection net cage 3 one ends are fixed in high-power submerged pump 2 delivery ports, and described collection net cage 3 other ends (end) are beaten the high position of horizontal plane that is fixed on after " slip-knot " on the spud pile.Zooplankton enters under the suction filtration effect of high-power submerged pump 2 and gathers net cage 3 in the water body, and the collection net cage is shaped as cylindrical, and gathering net cage 3 is that 150 mesh sieve thin,tough silk are made, long 2.0～3.0m.
Compared with the prior art the present invention has the following advantages:
1, the present invention can make full use of natural propagation and easy natural zooplankton resource of regenerating in the various fresh water water bodys, can be seedling production high-quality live body open-mouthed bait is provided, also can be zooplanktons such as required a large amount of cladoceras, copepoda in the fish parent culture method easy, that use is provided.
2, the apparatus structure that adopts of the present invention simple, draw materials easily, easy to use, not only greatly reduce labour intensity and also be adapted at using in hydrostatic, unhurried current waters and the water body that varies in size, have characteristics such as efficient, economic, practical.
Description of drawings
Fig. 1 is a harvester structural representation of the present invention.
Embodiment
Embodiment during following the present invention incites somebody to action in conjunction with the accompanying drawings is further described:
Embodiment 1: the collecting method of a kind of rotifers, cladocera and copepods zooplankton, adopt following acquisition step:
1, selectedly gathers water body to choose zooplankton in the water body (rotifers (Rotifera), cladocera (Cladocera) and copepoda (Copepoda)) density be the river course of 10/ml.
2, fixture and start water pump fixing harvester in selected waters, make dried up 50cm of immersible pump water inlet, per 2 hours collection zooplanktons (rotifers (Rotifera), cladocera (Cladocera) and copepoda (Copepoda)) behind the startup water pump.
3, the screening of zooplankton, cleaning
Zooplankton separates the open-mouthed bait that rotifers (Rotifera) does fish, to collect zooplankton (rotifers (Rotifera), cladocera (Cladocera) and copepoda (Copepoda)) and add clean pond water (volume ratio 1: 1) afterwards with 200 purpose bolting silk net filtrations, get filtrate, clean 1 time with clean pond water again.Cladocera on the filter screen (Cladocera) and copepoda (Copepoda) zooplankton then can be used as other purposes.
Described device is made up of fixed mount 1, high-power submerged pump 2, collection net 3 and spud pile 4.Described high-power submerged pump 2 is fixed on the fixed mount 1, and described collection net cage 3 is that 150 mesh sieve thin,tough silk are made, and is fixed in high-power submerged pump 2 delivery ports, and the collection net cage is shaped as cylindrical, and long 2.0.Zooplankton (rotifers (Rotifera), cladocera (Cladocera) and copepoda (Copepoda)) is further intensive in gathering net cage, and described collection net cage 3 is terminal beats the high position of horizontal plane that is fixed on after " slip-knot " on the spud pile 4.Zooplankton in the water body (rotifers (Rotifera), cladocera (Cladocera) and copepoda (Copepoda)) enters under the suction filtration effect of high-power submerged pump 2 gathers net cage 3.
Embodiment 2: the collecting method of a kind of rotifers, cladocera and copepods zooplankton, adopt following acquisition step:
1, selectedly gathers water body to choose zooplankton in the water body (rotifers (Rotifera), cladocera (Cladocera) and copepoda (Copepoda)) density be the pond of 30/ml.
2, fixture and start water pump fixing harvester in selected waters makes dried up 40cm of immersible pump water inlet, starts behind the water pump per 1.5 hours and collects a zooplankton (cladocera (Cladocera) and copepoda (Copepoda)).
3, the screening of zooplankton, cleaning
Separate the bait that cladocera (Cladocera) and copepoda (Copepoda) zooplankton do fish, it is back with 150 purpose bolting silk net filtrations to collect zooplankton (rotifers (Rotifera), cladocera (Cladocera) and copepoda (Copepoda)) adding clean water (volume ratio 1: 1), it is back with 60 purpose bolting silk net filtrations the zooplankton on the filter screen to be added clean pond water (volume ratio 1: 1) again, get filtrate, clean 1 time with clean pond water again.
Described device is made up of fixed mount 1, high-power submerged pump 2, collection net 3 and spud pile.Zooplankton in the water body (rotifers (Rotifera), cladocera (Cladocera) and copepoda (Copepoda)) enters the collection net cage under the suction filtration effect of immersible pump, the collection net cage is cylindrical, be that 150 mesh sieve thin,tough silk are made and are fixed in the immersible pump delivery port, long 2.5m; Zooplankton (rotifers (Rotifera), cladocera (Cladocera) and copepoda (Copepoda)) is further intensive in gathering net cage, gathers the terminal high position of horizontal plane that is fixed on after " slip-knot " on the spud pile of beating of net cage.
Embodiment 3: the collecting method of a kind of rotifers, cladocera and copepods zooplankton, adopt following acquisition step:
1, selectedly gathers water body to choose zooplankton in the water body (rotifers (Rotifera), cladocera (Cladocera) and copepoda (Copepoda)) density be the irrigation canals and ditches of 50/ml.
2, fixture and start water pump fixing harvester in selected waters makes dried up 30cm of immersible pump water inlet, starts behind the water pump per 1.0 hours and collects a zooplankton.
3, the screening of zooplankton, cleaning
Separate the bait that cladocera (Cladocera) and copepoda (Copepoda) zooplankton do fish, to collect zooplankton (rotifers (Rotifera), cladocera (Cladocera) and copepoda (Copepoda)) and add clean pond water (volume ratio 1: 1) afterwards with 125 purpose bolting silk net filtrations, it is back with 60 purpose bolting silk net filtrations the zooplankton on the filter screen (cladocera (Cladocera) and copepoda (Copepoda)) to be added clean pond water (volume ratio 1: 1) again, get filtrate, clean 1 time with clean pond water again.
Described device is made up of fixed mount 1, high-power submerged pump 2, collection net 3 and spud pile.Zooplankton in the water body (rotifers (Rotifera), cladocera (Cladocera) and copepoda (Copepoda)) enters the collection net cage under the suction filtration effect of immersible pump, the collection net cage is cylindrical, be that 150 mesh sieve thin,tough silk are made and are fixed in the immersible pump delivery port, long 3.0m; Zooplankton (rotifers (Rotifera), cladocera (Cladocera) and copepoda (Copepoda)) is further intensive in gathering net cage, gathers the terminal high position of horizontal plane that is fixed on after " slip-knot " on the spud pile of beating of net cage.
Claims (4)
1. the collecting method of a rotifers, cladocera and copepods zooplankton is characterized in that: adopt following acquisition step:
(1), the selected water body of gathering: choose zooplankton density in the water body in 10/ river course, irrigation canals and ditches or waters, pond more than the ml;
(2), fixture and start immersible pump: fixing harvester in selected river course, irrigation canals and ditches or waters, pond, dried up 30～50cm of the immersible pump water inlet of described harvester starts behind the immersible pump per 1～2 hour and collects a zooplankton;
(3), the screening of zooplankton, cleaning: the zooplankton of collecting is added clean pond water, and the volume ratio of described clean pond water and zooplankton is 1: 1; Carry out separating and filtering with 60～150 purpose bolting silk nets, and clean 1～3 time with clean pond water.
2. the collecting method of a kind of rotifers according to claim 1, cladocera and copepods zooplankton is characterized in that: described harvester is made up of fixed mount (1), immersible pump (2), collection net cage (3) and spud pile (4); Described immersible pump (2) is fixed on the fixed mount (1), and described collection net cage (3) one ends are fixed in immersible pump (2) delivery port, and described collection net cage (3) other end is fixed on the spud pile (4) after beating slip-knot.
3. the collecting method of a kind of rotifers according to claim 2, cladocera and copepods zooplankton is characterized in that: described collection net cage (3) is shaped as cylindrical.
4. the collecting method of a kind of rotifers according to claim 2, cladocera and copepods zooplankton is characterized in that: described collection net cage (3) is that 150 mesh sieve thin,tough silk are made, and length is 2.0～3.0m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910036288 CN101692805B (en) | 2009-10-13 | 2009-10-13 | Method for collecting rotifers, Cladocera and copepods zooplankton |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910036288 CN101692805B (en) | 2009-10-13 | 2009-10-13 | Method for collecting rotifers, Cladocera and copepods zooplankton |
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| Publication Number | Publication Date |
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| CN101692805A CN101692805A (en) | 2010-04-14 |
| CN101692805B true CN101692805B (en) | 2011-04-20 |
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| CN 200910036288 Expired - Fee Related CN101692805B (en) | 2009-10-13 | 2009-10-13 | Method for collecting rotifers, Cladocera and copepods zooplankton |
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Families Citing this family (10)
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| CN102599109B (en) * | 2012-02-29 | 2014-07-30 | 谢达祥 | Simple method for purifying rotifers in batch |
| CN102550503B (en) * | 2012-03-12 | 2013-10-09 | 江苏省淡水水产研究所 | Fry initial feed collecting device |
| CN103210880A (en) * | 2012-03-21 | 2013-07-24 | 常州市环境监测中心 | Device for separating mother daphnia magna and young daphnia magna for daphnia magna experiment and method of separating mother daphnia magna and young daphnia magna for daphnia magna experiment |
| CN102894216A (en) * | 2012-09-16 | 2013-01-30 | 中国水产科学研究院淡水渔业研究中心 | Preparation and feeding method of special frozen live bait |
| CN103931572B (en) * | 2014-05-14 | 2016-08-31 | 河南牧业经济学院 | Plankton collecting device and acquisition method |
| CN105850942A (en) * | 2016-05-30 | 2016-08-17 | 江苏好润生物科技有限公司 | Trapping device of cladoceran insects in crab pond and method of trapping device |
| CN107047430A (en) * | 2017-01-26 | 2017-08-18 | 西南大学 | A kind of system and method that filter-feeding fish is cultivated in clear water pond |
| CN108522375A (en) * | 2018-04-10 | 2018-09-14 | 武汉中科水生环境工程股份有限公司 | A kind of wheel animalcule cultural method reducing Measures of Algae in Water Body density |
| CN109997809B (en) * | 2019-04-10 | 2021-07-27 | 华南农业大学 | A kind of large flea enrichment collection device and collection method |
| CN111802290B (en) * | 2020-07-22 | 2021-11-26 | 集美大学 | Method and device for separating and culturing pure copepods capable of freely laying eggs |
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