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A method to improve the survival rate of oyster spat during red tide period

A technology of red tide period and survival rate, which is applied to marine organisms to improve the survival rate of oyster spat during red tide period, and can solve problems such as improving the survival rate of oysters

Active Publication Date: 2022-01-04
INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there is no technical report on effectively improving the survival rate of oysters during red tide

Method used

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  • A method to improve the survival rate of oyster spat during red tide period

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Experimental program
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Effect test

Embodiment 1

[0022] In July 2019, long oyster spat with a shell height of 0.2-1cm were selected in Jimo District, Qingdao City, and the attachment base with oysters was fixed on a 1.5m long culture rope. The culture ropes are evenly distributed, and each culture rope is fixed with 12-14 oyster attachment bases, and the oyster spat are temporarily raised in the sea area of ​​Aoshan Bay by the culture method of hanging ropes.

[0023] Use stainless steel to build a cuboid frame with a length of 6m, a width of 2m, and a height of 1.8m. The bottom of the frame is respectively fixed on 4 identical steel plate trucks, and a wooden stick with a length of 2 m and a diameter of 1 cm ( figure 1 ). Set a stainless steel S-shaped hook every 0.5m on the cylindrical wooden stick. Randomly select an S-shaped hook to hang the environmental parameter automatic monitoring probe.

[0024] Before the red tide broke out, the oysters were taken back from the breeding sea area in early August, and the macroal...

Embodiment 2

[0027] In July 2019, long oyster spat with a shell height of 0.2-1cm were selected in Jimo District, Qingdao City, and the attachment base with oysters was fixed on a 1.5m long culture rope. The culture ropes are evenly distributed, and each culture rope is fixed with 12-14 oyster attachment bases, and the oyster spat are temporarily raised in the sea area of ​​Aoshan Bay by the culture method of hanging ropes.

[0028] Use stainless steel to build a rectangular parallelepiped frame with a length of 4m, a width of 2m, and a height of 1.8m. The bottom of the frame is respectively fixed on four identical steel plate pallet trucks, and a wooden stick with a length of 2 m and a diameter of 1 cm is fixed in parallel at intervals of 1 m along the long side of the top of the frame. Set a stainless steel S-shaped hook every 0.5m on the cylindrical wooden stick. Randomly select an S-shaped hook to hang the environmental parameter automatic monitoring probe.

[0029] Take the oysters ...

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Abstract

The invention belongs to the field of shellfish resistance improvement in marine biotechnology, and in particular relates to a method for improving the survival rate of oyster spat in the red tide period. The invention provides a method for improving the survival rate of oyster spat in the red tide period by utilizing the characteristic of strong phenotypic plasticity of oysters under specific short-term extreme conditions. The method does not require chemicals to treat red tide organisms, oysters and breeding facilities, does not cause marine environmental pollution problems, has significant advantages in ecological environment protection, and can significantly increase the survival rate of oyster spat during the red tide period in a short period of time.

Description

technical field [0001] The invention belongs to the field of shellfish resistance improvement in marine biotechnology, and in particular relates to a method for improving the survival rate of oyster spat in the red tide period. Background technique [0002] In recent years, with the warming of the global climate, the increase of extreme marine climate and environmental changes have led to frequent outbreaks of harmful red tides along the coast of my country. Red tides can inhibit the growth and feeding of shellfish, and even lead to their death. In recent years, mass mortality of shellfish during the red tide period has occurred frequently. Due to the increasing frequency and harm of toxic red tides, the impact on coastal fishery production and ecosystem health is becoming more and more serious. It is called "the dust storm in the ocean". [0003] Oyster has the characteristics of fast growth, high yield, and rich nutrition. It is one of the important marine cultured shell...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/54
CPCA01K61/54Y02A40/81
Inventor 丛日浩李莉张国范王鲁平王威
Owner INST OF OCEANOLOGY - CHINESE ACAD OF SCI