Intermediate cultivation method suitable for benthic bivalve in pond
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An intermediate cultivation, bivalve technology, applied in application, climate change adaptation, fish farming, etc., can solve the problems of low production efficiency, need to replace mesh bags, and high labor costs, and achieve low production costs, low costs, and harvesting. Capture convenient effects
Inactive Publication Date: 2020-04-17
TIANJIN AGRICULTURE COLLEGE
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[0005] 1. A net frame device (CN205511640U) used for intermediate cultivation of benthic shellfish ponds, which solves the problems of high labor costs, need to replace mesh bags, and low production efficiency of existing benthic shellfish cultivation devices
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Embodiment 1
[0037] A method for cultivating in the middle of a pond suitable for benthic bivalves, the steps are as follows:
[0038] From August to November 2019, the intermediate cultivation process of Philippine clams was carried out in the No. 1 pond on the north side of the mouth of Duliujian River in Tianjin:
[0039] ⑴Clean pond and whole bed: The pond area is 20 mu, the pond is cleaned up, the inlet and outlet pipes or gate culverts are set on the opposite sides, the bottom of the pond is dredged and disinfected, and the rectangular shellfish breeding bed is set along the long axis of the pond, and the breeding bed is far from the shore 20 meters, the width of the border platform is 5 meters, and the breeding area is 3.5 mu;
[0040] (2) Lay a layer of plastic cloth with a thickness of 0.10mm on the surface of the breeding bed;
[0041] (3) Sew a long strip mesh bag, fill it with coarse sand or gravel to make a long cylindrical gabion with a diameter of 5cm, and press the gabion on...
Embodiment 2
[0048] A method for cultivating in the middle of a pond suitable for benthic bivalves, the steps are as follows:
[0049] From August to November 2019, the intermediate cultivation of green clams was carried out in the No. 2 pond on the north side of the estuary of Duliujian River in Tianjin:
[0050] ⑴Clear pond and whole farm: The pond area is 25 mu, the pond is cleaned up, the inlet and outlet pipes or gate culverts are set on the opposite banks, the bottom of the pond is dredged and disinfected, and the rectangular shellfish breeding bed is set up. The breeding bed is 20 meters away from the bank and the platform is wide. 3.5 meters, set along the length of the pond, the breeding area is 4 mu;
[0051] (2) Lay a layer of plastic cloth with a thickness of 0.10mm on the surface of the breeding bed;
[0052] (3) Sew a long strip mesh bag, fill it with coarse sand or gravel to make a long cylindrical gabion with a diameter of 5cm, and press the gabion on the edge of the plast...
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Abstract
The invention relates to an intermediate cultivation method suitable for benthic bivalve in a pond. The method comprises the following steps: (1) cleaning the pond and preparing a bed; (2) laying a layer of plastic on the surface of the cultivation bed; (3) making a gabion, pressing the gabion on the edge of the plastic cloth on the surface of the cultivation bed for stabilizing the plastic and preventing the escape of spats; (4) injecting water into the pond; (5) placing the spats and setting the density; (6) performing intermediate cultivation of the spats in spring and autumn, deepening seawater to 50-100 cm higher than the bed surface in summer cultivation, and not performing overwintering cultivation; (7) performing daily management: changing water, conducting oxygenating, fertilizingwater and separating spats in the pond, and maintaining the required unicellular algae concentration, dissolved oxygen, transparency and density in the pond; and (8) harvesting the spats. The methodhas the advantages of low cost, high survival rate, convenience in harvesting, various applicable substrates and the like, effectively improves the scale and efficiency of intermediate cultivation ofthe benthic bivalve, is simple, practical, convenient to popularize, and suitable for cultivating the ex-warehouse spats of the benthic bivalve such as clams, blood clams and razor clams to commercialspats.
Description
technical field [0001] The invention belongs to the technical field of breeding bivalve mollusks in marine agriculture, in particular to a method for cultivating benthic bivalves in the middle of a pond. Background technique [0002] Benthic bivalves are collectively referred to as a variety of mollusk shellfish, also known as tidal flat shellfish, which refer to bivalve molluscs that live in coastal intertidal zones and shallow seas, can excavate sand and live in them, and have an output of about half of seawater. About 2 / 3 of the total shellfish production. The main economic categories include: clams mainly include Philippine clams, green clams, Chinese clams, Bafei clams, Meretrix meretrix, Xishi tongue, mirror clams, etc.; clams mainly include hairy clams, clams, mud clams, etc.; , razor clam, large razor clam, etc. Benthic bivalves are the dominant species in the tidal flat biome, with the characteristics of large biomass and high economic value. [0003] The breedin...
Claims
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