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Method for intercropping siganus in shellfish culture pond

A technology of shellfish breeding and basket fish, which is applied in fish farming, application, climate change adaptation, etc., can solve the problems of easy deterioration, hindering shellfish feeding, activities, and consumption of dissolved oxygen, etc., and achieve good economic value and ecology value, improved energy efficiency, and the effect of a good living environment

Pending Publication Date: 2021-08-27
EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The overgrown Enteromorpha will hinder the feeding and activities of the shellfish in the shellfish culture pond, causing the shellfish to be trapped and die; and the overgrown Enteromorpha consumes a large amount of dissolved oxygen and nutrient salts in the culture water, robbing the water of nutrients, and the culture water The number of phytoplankton in the pond decreases, the pool water is thin, and it is difficult to fertilize water; in addition, a large amount of Enteromorpha dies and deposits at the bottom of the water, which is prone to deterioration, corruption, blackening, and smelly, and the toxic and harmful substances it produces, such as hydrogen sulfide, deteriorate the water quality. Damage to shellfish in culture ponds
Affected by the overgrowth of Enteromorpha, the yield and quality of shellfish have declined

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] On June 1, 2018, in the Rudong Meretrix meretrix breeding pond in Jiangsu Province, the basket fish were raised to prevent and control Enteromorpha, and two clam culture ponds next door were selected, one was raised with basket fish, and the other was not raised with basket fish. The area of ​​the clam culture pond is 10×667 square meters, the depth of the pond is 1.5-2.0m, there are ring ditches around it, the sand content is 50%, and it is convenient to enter and discharge. Plow the pond at a low level of 200-300mm before placing clams, and disinfect it with quicklime. The dosage is 150kg of quicklime per 667 square meters, and then crushed and raked. Shellfish can be put in after cleaning the pond for one week. When entering water, use 60-80 mesh. Sieve silk to prevent harmful organisms from entering the pond. The water depth should be 200-300mm. After entering 500mm of water, apply chicken manure, and apply 50kg of chicken manure per 667 square meters.

[0032] The ...

Embodiment 2

[0038]On June 14, 2020, in the Rudong Meretrix meretrix breeding pond in Jiangsu Province, two clam breeding ponds were selected to control Enteromorpha meretrix, one with basket fish and one without basket fish. The area of ​​the clam culture pond is 5×667 square meters, the depth of the pond is 1.5-2.0m, there are ring ditches around it, the sand content is 50%, and it is convenient to enter and discharge. Plow the pond at a low level of 200-300mm before placing clams, and disinfect it with quicklime. The dosage is 150kg of quicklime per 667 square meters, and then crushed and raked. Shellfish can be put in after cleaning the pond for one week. When entering water, use 60-80 mesh. Sieve silk to prevent harmful organisms from entering the pond. The water depth should be 200-300mm. After entering 500mm of water, apply chicken manure, and apply 50kg of chicken manure per 667 square meters.

[0039] The time to release clams is around April, the water temperature is 10-15°C, the...

Embodiment 3

[0045] On July 2, 2019, basket fish were raised in a razor clam culture pond in Ningbo, Zhejiang. Two razor clam culture ponds next door were selected, one with basket fish and one without basket fish. The area of ​​the razor clam culture pond is 50×667 square meters, the effective water depth is 1.5-2.0m, the seawater specific gravity is between 1.010-1.025, there are ring ditches around, the soft mud bottom, the water level of the razor clam is 0.8-1.2m, the lowest is 0.4-0.6m, The pond is long and has a raised beach in the center.

[0046] Disinfect the pond with 60 ppm of bleaching powder 15 days before releasing the seedlings of razor clams, drain the water in 3-5 days, and then use 20 ppm of tea seed cake to kill wild fish, snails and crabs. These natural enemies will devour the seedlings. The time for releasing seedlings and hanging razor clam seedlings is April 1st. The specification for releasing seedlings is 3,000 grains per kilogram. About a week before sowing seedl...

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PUM

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Abstract

The invention discloses a method for intercropping siganus in a shellfish culture pond. The method comprises the following steps: intercropping siganus in a shellfish culture pond, wherein the shellfish is one of meretrix meretrix, sinonovacula constricta and crassostrea gigas. In the provided method for intercropping siganus in a shellfish culture pond, after the siganus is put into the shellfish culture pond where enteromorpha outbreaks and grows continuously for three years, the enteromorpha outbreaks and grows in the shellfish culture pond where the siganus is not intercropped, shellfish growth is affected, and economic and ecological benefits are reduced.

Description

technical field [0001] The invention belongs to the field of shellfish ecology, and in particular relates to a method for raising basket fish in shellfish culture ponds. Background technique [0002] Enteromorpha is a large benthic algae. The overgrown Enteromorpha will hinder the feeding and activities of the shellfish in the shellfish culture pond, causing the shellfish to be trapped and die; and the overgrown Enteromorpha consumes a large amount of dissolved oxygen and nutrient salts in the culture water, robbing the water of nutrients, and the culture water The number of phytoplankton in the pond decreases, the pool water is thin, and it is difficult to fertilize water; in addition, a large amount of Enteromorpha dies and deposits at the bottom of the water, which is prone to deterioration, corruption, blackening, and smelly, and the toxic and harmful substances it produces, such as hydrogen sulfide, deteriorate the water quality. Cause damage to shellfish in the cultur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/54A01K61/10
CPCA01K61/54A01K61/10Y02A40/81
Inventor 刘鉴毅刘佳伦庄平赵峰冯广朋邹雄王妤高宇李琪孙艳秋杨俊
Owner EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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