How to liberate eyebrow crabs

A technology for liberating eyebrow-footed crabs and crab fry, which is applied in fish farming, climate change adaptation, animal husbandry, etc., to restore fishery resources and improve the survival rate.

Active Publication Date: 2020-08-25
日照市海洋与渔业研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the artificial seed cultivation technology of Jiefang eyebrow crab is mature, but the release technology of Jiefang eyebrow crab seed has been blank in the aquatic industry

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Further description will be given below in conjunction with specific examples. This embodiment is carried out in Shandong Rizhao sea area.

[0023] 1) Sea area water quality and background investigation:

[0024] Step 1-1, during the dry tide period during the big flood tide in February of the Gregorian calendar, excavate the substrate with a shovel in the fine sandy area of ​​the low tide area in the intertidal zone of the Rizhao Sea Area, with a depth of 20cm, and shake off the excavated fine sand horizontally, and the sand is scattered After opening, check whether there are liberated eyebrow crabs;

[0025] Step 1-2, during the high tide period during the flood tide, use a 6-horsepower boat or a hand-operated scull boat, and move vertically to the horizontal position where the seawater reaches during the flood tide and dry tide in the area where the liberated eyebrow crabs are distributed in the low tide area of ​​the intertidal zone. Mooring on the sea surface of ...

Embodiment 2

[0044] Further description will be given below in conjunction with specific examples. This embodiment is carried out in Shandong Rizhao sea area.

[0045] 1) Sea area water quality and background investigation:

[0046] Step 1-1, during the dry tide period during the big flood tide in February of the Gregorian calendar, excavate the substrate with a shovel in the fine sandy area of ​​the low tide area in the intertidal zone of the Rizhao Sea Area, with a depth of 20cm, and shake off the excavated fine sand horizontally, and the sand is scattered After opening, check whether there are liberated eyebrow crabs;

[0047] Step 1-2, during the high tide period during the flood tide, use a 6-horsepower boat or a hand-operated scull boat, and move vertically to the horizontal position where the seawater reaches during the flood tide and dry tide in the area where there are liberated eyebrow crabs in the low tide area of ​​the intertidal zone. Mooring on the sea surface within 0.1 na...

Embodiment 3

[0066] 1) Sea area selection:

[0067] Step 1-1, during the dry tide period during the big flood tide, use a shovel to excavate the substrate in the fine sandy area in the low tide area of ​​the intertidal zone to a depth of 20cm, shake off the excavated fine sand horizontally, and check whether there is any sand after the sand is dispersed. liberate eyebrow crab;

[0068] Step 1-2, during the high tide period during the flood tide, use a 6-horsepower boat or a hand-operated scull boat, and move vertically to the horizontal position where the seawater reaches during the flood tide and dry tide in the area where the liberated eyebrow crabs are distributed in the low tide area of ​​the intertidal zone. Mooring on the sea surface of 0-0.1 nautical mile, use a columnar sampler to sample the bottom of the seabed, 10 sampling points / square nautical mile, evenly distributed;

[0069] Steps 1-3: In the low tide area of ​​the intertidal zone, there is a distribution of freed eyebrow c...

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PUM

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Abstract

The invention relates to the technical field of marine fishery resource restoration, in particular to a blepharipodaliberata releasing method. The method is characterized by including the following steps of firstly, investigating the water quality and background of a sea area and selecting a releasing sea area, wherein a substrate is dug in a fine sand area of a low tide area of an intertidal zonein the dry tide time duration during a heavy flooding tide, and whether blepharipodaliberata exists in the dug fine sand or not is detected; secondly, getting larvae out of a pool, wherein the larvaeare get out of the pool to be released on a sea when the maximum wind power of the sea is seven grades or lower during the heavy flooding tide and it is sunny, cloudy or rainy; thirdly, conducting releasing on the sea. By means of the method, the survival rate of the larvae getting out of the pool and entering a wild environment can be increased, the blepharipodaliberata fishery resource amountis restored, the genetic resources of blepharipodaliberata are protected, stable fishery resources are provided for fishermen, and the method has the advantages of both protection and utilization.

Description

technical field [0001] The invention relates to the technical field of marine fishery resource restoration, in particular to a release method for liberating eyebrow crabs. Background technique [0002] Jiefang eyebrow crab is a non-shrimp and non-crab heterotailed creature, commonly known as "sea cicada crab", "sea cicada shrimp", "sea cicada", "sea festival", and it can be found in coastal areas from Yantai to Rizhao, Shandong. distribution, because of its thin shell and delicious taste, the demand is increasing year by year, which leads to a corresponding increase in its excavation. The number of wild populations of Jiefang eyebrow crabs has been declining. In order to protect and maintain this characteristic For marine fishery resources, it is imperative to liberate eyebrow crab seedlings and restore resources. At present, the artificial seed cultivation technology of Jiefang eyebrow crab is mature, but the release technology of Jiefang eyebrow crab seed has been blank i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/59
CPCA01K61/59Y02A40/81Y02P60/60
Inventor 王雪梅王志扬孙玉忠丰爱秀张法忠
Owner 日照市海洋与渔业研究所
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