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Method for storing and utilizing aquatic chironomid larvae samples

A technology for chironomids larvae and aquatic chironomids, which is applied in the preservation, application, animal husbandry and other directions of human or animal bodies, and can solve the problems of easy dehydration and weightlessness of chironomids larvae.

Inactive Publication Date: 2010-12-08
HUAZHONG AGRI UNIV
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Existing preservation methods make chironomus larvae prone to dehydration and weightlessness

Method used

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  • Method for storing and utilizing aquatic chironomid larvae samples
  • Method for storing and utilizing aquatic chironomid larvae samples

Examples

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Embodiment Construction

[0011] Collect samples of chironomus larvae in various large reservoirs and lakes in Hubei Province, China, with an area of ​​1 / 16m 2 The special improved Peterson bottom sample collector samples the bottom mud of the water body, washes the collected mud samples with a metal sieve with an aperture of 0.5mm, takes them back to the room and pours them into a white dissection tray, and selects all chironomus larvae in the Observation and classification under microscope. Then different kinds of chironomus larvae were placed on filter paper to absorb water for 5 minutes, and weighed on an electronic balance with an accuracy of 0.1 mg. This weight was called the fresh biomass of chironomus larvae.

[0012] If there is no time to analyze the samples collected in the field immediately, put the cleaned chironomus larvae samples into 8% formaldehyde solution and soak them for preservation (the soaking temperature is room temperature, that is, 20-25°C, and the time limit for soaking spec...

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Abstract

The invention relates to a method for storing and utilizing aquatic chironomid larvae samples, belonging to the technical field of preparation and utilization of aquatic biological resource samples. The method for storing and utilizing the aquatic chironomid larvae samples is characterized by comprising the following steps of: steeping newly collected aquatic chironomid larvae samples with using 8% formaldehyde solution, preserving for 1-150 days at the room temperature of 20-25 DEG C, and maintaining the dehydration weight-loss ratio of the samples to be 3.0-22.0%. The chironomid larvae are Tanypus punctipennis chironomid larvae, Propsilocerus akamusi chironomid larvae or / and Chironomus cemireductus f.semireductus lenz chironomid larvae. By the invention, the serious dehydration weight loss of the chironomid larvae samples is avoided, and the scientific observation is convenient.

Description

technical field [0001] The invention belongs to the technical field of preparation and utilization of aquatic biological resource specimens, in particular to methods for preserving and utilizing aquatic aquatic chironomus larvae biological specimens. Background technique [0002] my country's waters are rich in resources, and the types of waters include oceans, rivers, lakes, reservoirs, marshes, ponds, etc. There are a large number of benthic animals inhabiting the bottom mud of each type of waters, among which chironomus larvae are one of the benthic animals. large taxa. Chironomus larvae are not only high-quality bait for bottom fish, but also important indicator organisms for the quality of water environment. Therefore, in the investigation of water body fishery resources and water body environmental quality, the research on the species composition and biomass of chironomus larvae is an important research content. [0003] In taxonomy, chironomid larvae belong to Insect...

Claims

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Application Information

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IPC IPC(8): A01N1/00
Inventor 熊邦喜王银东马徐发杨学芬杨明生吕光俊
Owner HUAZHONG AGRI UNIV
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