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Method for identifying ages of shrimps and crabs by utilizing gastric mill

A technology of shrimp and crab and grinding tools, which is applied in the field of aquaculture

Inactive Publication Date: 2017-11-07
SHANGHAI OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide an effective method for directly identifying the age of shrimps and crabs in view of the deficiencies and difficulties in identifying the age of shrimps and crabs in the prior art

Method used

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  • Method for identifying ages of shrimps and crabs by utilizing gastric mill
  • Method for identifying ages of shrimps and crabs by utilizing gastric mill

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Embodiment 1. Utilize the method for identifying the age of Portunus trituberculatus by stomach grinding, the operation steps are as follows:

[0042] (1) Extraction: Uncover the carapace of shrimp and crabs to take out the whole stomach, cut the stomach with surgical scissors and take out the stomach grinder;

[0043] (2) Cleaning: Use surgical scissors to cut the stomach grinder and unfold it, and clean the surface of the stomach grinder with clean water;

[0044] (3) Connective tissue removal: use dissecting scissors and pointed tweezers to remove the connective tissue connected to the stomach grinding bones (1 middle cardia bone, 1 pair of yoke cardia bones and 1 pair of wing cardia bones);

[0045] (4) Preservation: cryopreserve the gastric mill treated in step (3) at -20°C;

[0046] (5) Marking: Select a yoke cardia bone, according to figure 1 Use a marker to draw a cutting line between the first tooth and the proximal 1 / 2;

[0047] (6) Embedding: Place the yok...

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Abstract

The invention discloses a method for identifying ages of shrimps and crabs by utilizing a gastric mill. The method comprises the following steps: marking, selecting, embedding, cutting, fixing, grinding, polishing, heating, observing growth lines and the like. The method disclosed by the invention provides a novel solution for directly identifying the ages of the shrimps and crabs and has obvious research value and commercial value.

Description

technical field [0001] The invention belongs to the field of fisheries, and in particular discloses a method for identifying the age of shrimp and crabs by using a gastric grinder. The method involves the observation of growth lines of the gastric grinder of shrimps and crabs. Background technique [0002] Shrimp and crabs belong to the phylum Arthropoda, Crustacea, and Decapoda. Most species live between 1 and 10 years old. They are important marine economic species and are widely distributed in oceans, South and North Pole and other sea areas in the world. Age identification is an important part of fishery biology research. Through the identification of the age of aquatic organisms, it is helpful to grasp their life history and estimate their population, and provide basic information for fishery resource management. [0003] For most wild aquatic organisms, their age information can generally be directly obtained through growth lines in hard tissues, such as fin rays and v...

Claims

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Application Information

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IPC IPC(8): G01N21/84G01N1/28G01N1/36G01N1/32G01N1/44G01N1/42
CPCG01N21/84G01N1/28G01N1/2813G01N1/286G01N1/32G01N1/36G01N1/42G01N1/44G01N2001/2873G01N2001/364G01N2001/366
Inventor 刘必林倪震宇蒋瑞舒畅张健林静远李建华陈新军
Owner SHANGHAI OCEAN UNIV