Seeding collecting method for bivalves pelagic larvae and using seeding collecting device
A technology for planktonic larvae and bivalves, applied in fish farming, application, climate change adaptation, etc., to achieve the effect of improving work efficiency and avoiding damage
Inactive Publication Date: 2010-10-27
GUANGDONG OCEAN UNIVERSITY
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Problems solved by technology
But this method has many disadvantages: First, a large number of larvae collide with each other under the action of water flow in the mesh bag or cage for a long time, which will cause damage to the larvae; It is getting slower and slower, so the efficiency of conventional seedling collection operation is very low
Although collecting seedlings and pouring ponds is a method to thoroughly improve the water quality of seedlings, the above shortcomings seriously limit its use frequency
Method used
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[0009] The seedling collecting system of the present invention is made of seedling collecting device, water pump and the pipeline that connects seedling collecting device outlet pipe and water pump water inlet; figure 1 As shown, the seedling collector is composed of 150 mesh to 350 mesh conical sieve tulle bag, water inlet pipe, water outlet pipe, polyvinyl chloride plastic round bottom plate, conical sieve tulle bag 1 is placed in water inlet pipe 2, conical sieve The mouth of the tulle bag 1 is turned outwards and wrapped around a port outside the water inlet end of the water inlet pipe 2, and is fastened with a certain elastic plastic rope 5. The outlet pipe 3 is installed on the other end of the water inlet pipe 2, and the other end of the water inlet pipe 2 The polyvinyl chloride plastic round bottom plate 4 is housed, and the water outlet pipe 3 is installed in the water inlet pipe 2 and has small holes 6 evenly distributed therein. When collecting seedlings, place the...
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The invention relates to a method for collecting bivalve zooplankton larva and applied seedling collecting apparatus. It employs conical bolting silk mesh bag of 150-350 order, and seedling collecting apparatus comprising water inlet pipe, outlet pipe, and polyvinyl chloride plastic round bottom board, water pump, and pipeline connected water pump and seedling collecting apparatus, sea water is discharged from seedling culture pond through bolting silk mesh bag, and the larva are gathered in bolting silk mesh bag. The invention employs water pump to discharge water during seedling gathering automatically, overcomes shortcomings of water level reduction and mesh of bolting silk mesh bag clog during traditional water discharging course with siphon, and the water flowing velocity is small, the larva move to end of mesh bag gradually which avoids mutual crash and injury.
Description
technical field [0001] The invention relates to an aquaculture method, in particular to a method for collecting seedlings of bivalve planktonic larvae. Background technique [0002] At present, the artificial breeding of bivalve molluscs is flourishing in our country. In the process of artificial breeding, due to the deterioration of water quality and larval diseases, it is a frequently encountered operation to collect seedlings and pour them into ponds. At present, the methods of collecting seedlings are all siphon methods: the planktonic larvae in the nursery pond are discharged together with the seawater with a siphon, and a sieve tulle bag is placed at the outlet end of the siphon, or a seedling collection cage is placed, and the seawater flows out through the sieve tulle, and the larvae Leave in screened tulle bags or cages. But this method has many disadvantages: First, a large number of larvae collide with each other under the action of water flow in the net bag or ...
Claims
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IPC IPC(8): A01K61/00A01K80/00
CPCY02A40/81
Inventor 张春芳刘永邓陈茂梁飞龙符韶
Owner GUANGDONG OCEAN UNIVERSITY