Apparatus for detecting allurement property of fish larvae bait

A technique for attracting prey and juvenile fish, applied in fish farming, application, climate change adaptation, etc., can solve problems such as unsuitable for actual production, too strong subjectivity of evaluation methods, doubtful statistical results, etc.

Inactive Publication Date: 2006-07-12
刘峰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, some of these methods are too complicated to be suitable for actual production; the size of some equipment cannot be flexibly adapted to the needs of larval fish research; some evaluation methods are too strongly affected by subjectivity, and the statistical results are often questioned
The behavioral characteristics of larvae and juvenile fish in the presence of attractant substances are not exactly the same as those of juvenile and adult fish. Therefore, the above methods and devices cannot meet the needs
Currently, there is a lack of universal, reliable, flexible, and convenient detection tools and methods for the screening of effective attractant substances in larvae and juveniles.

Method used

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  • Apparatus for detecting allurement property of fish larvae bait
  • Apparatus for detecting allurement property of fish larvae bait
  • Apparatus for detecting allurement property of fish larvae bait

Examples

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Embodiment Construction

[0012] like figure 1 , the middle is the fish-restricting body 1 of the annular metal ring that the cross structure is fixed, hangs a lure test ball 4 with suspension wire 3 in its center, and the fish-restricting body 1 periphery is fixedly supported by support 2. This structure is suitable for benthic larvae. After putting it into the bottom of the water, use the above-mentioned quadrant reference system formed by the metal ring and the cross structure to observe the number of larvae and juveniles within the range of the fish body from the vertical top of the water body. Behavior.

[0013] Above-mentioned food-inducing test ball 4 can be the absorbent cotton ball that usually has been noted with the plastic paper wrapping of food-inducing substance, or the mixture of food-inducing substance and medium, and further wraps a surface cloth hole 8 on the outside of food-inducing test ball 4. A snap-on hemispherical shell 7, such as figure 2 . The tempting test ball 4 and the ...

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Abstract

A food attracting checking device of infant fish attracting food, comprising circular metal fish limiting circle with a crossing structure in the middle, suspending a food attractant ball with a suspending line in the center, the around of the fish limiting circle is supported by supporting cradle. The above said food attractant ball is usually the absorbent gauze with porous plastic packed and filled with attracting material, or the mixture of attracting material and medium, equipping a hemispherical shell which two of then can be locked together and with pores equipped on the surface out of the attracting food ball, the above said limiting fish circle can be designed as a spherical aquarium with net cover, and the fish limiting circle is an adjustable shrink-fit container structure to meet demand of different species and size fish. The invention is characterized by the rational structure, low cost, convenient and accurate detection and comparison of the various attracting property of the attracting material.

Description

technical field [0001] The invention relates to a device for measuring the behavioral response of larvae and juveniles to the presence of a certain substance—a food-attractive detector for larvae and juvenile fish-attractive substances. Background technique [0002] The screening of effective food-attractant substances in larvae and juvenile fish is one of the key issues in the development of fish micropellet feed. There are many typical methods for the research on the chemical perception of fish ingestion, ① electrophysiological method; ② maze method; ③ ball touching method; Among them, the electrophysiological method judges by recording the current changes of the olfactory nerve and gustatory nerve when there is the presence or absence of the attractant substance. The number of larvae and juveniles within the range, or the behavior of larvae and juveniles within the set range can be analyzed to finally achieve the purpose of comparing and determining the attractant substa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 刘峰刘春娥
Owner 刘峰
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