Feralization device for salmon fries

A technology for the rewilding of salmon, which is applied in the field of rewilding devices for salmon fry, can solve the problems of poor multiplication effect, habit and wild destruction of salmon fry, difficulty adapting to the wild environment, etc., and achieves the effect of simple structure

Pending Publication Date: 2017-08-08
HEILONGJIANG RIVER FISHERY RES INST CHINESE ACADEMY OF FISHERIES SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, under artificial breeding conditions, the original habits and wild nature of salmon fry will be destroyed, and it is difficult to adapt to the wild environment due to insufficient wildness when released, resulting in poor multiplication effect

Method used

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  • Feralization device for salmon fries
  • Feralization device for salmon fries

Examples

Experimental program
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Effect test

specific Embodiment approach 1

[0011] Specific implementation mode one: as Figure 1~Figure 2 As shown, the present invention discloses a device for rewilding salmon fry, comprising a telescopic fry box 1, a plug-in frame 3, a water flow regulating valve plate, an artificial stone cushion 6, two densely porous mesh cloths 5 and four telescopic Outrigger 2, the telescopic fry box 1 is composed of an outer cylinder 1-1 and an inner cylinder 1-2 which are arranged horizontally and nested with each other, and the top wall of the outer cylinder 1-1 and the inner cylinder 1-2 Corresponding fry placement openings 1-3 are all provided, and the fry placement openings 1-3 of the outer cylinder 1-1 are hinged with matching cover plates 1-4, and the relative positions of the two side walls of the outer cylinder 1-1 are respectively set. There is a threaded through hole 1, and fastening bolts 1-5 are respectively screwed in the two threaded through holes 1, and the outer cylinder 1-1 and the inner cylinder 1-2 pass thro...

specific Embodiment approach 2

[0012] Specific implementation mode two: as figure 1 As shown, this embodiment is a further description of specific embodiment 1. A slot 7 is provided on the top wall of the outer cylinder 1-1, and the slot 7 is perpendicular to the two sides of the outer cylinder 1-1. The side wall is set, and the water flow regulating valve plate includes two porous vertical plates 4-1 and two fastening bolts 4-2, and the through holes of the two porous vertical plates 4-1 correspond one by one, and the two The perforated vertical plates 4-1 are all inserted into the slots one 7, and the relative positions of the two side walls of the outer cylinder 1-1 are respectively provided with threaded through holes two, and the two threaded through holes two are connected with each other. Corresponding to one of the porous vertical plates 4-1, a fastening bolt 2 4-2 is respectively screwed in the two threaded through holes two, and one of the porous vertical plates 4-1 is connected to the outer cylin...

specific Embodiment approach 3

[0013] Specific implementation mode three: as Figure 1~Figure 2 As shown, this embodiment is a further description of specific embodiment 1 or specific embodiment 2, and the two threaded through-holes mentioned are both arranged near the socket end of the outer cylinder 1-1.

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Abstract

The invention discloses a feralization device for salmon fries, and relates to a fish fry feralization device. A telescopic fry tank is composed of an outer cylinder and an inner cylinder which are sleeved to each other, wherein fish fry placement openings are formed in the outer cylinder and the inner cylinder; the fish fry placement opening of the outer cylinder is hinged with a cover plate; a first thread through hole is respectively formed in two side walls of the outer cylinder; first fastening bolts are respectively connected in the two first thread through holes in a spinning manner; the outer cylinder is fixedly connected with the inner cylinder through the first fastening bolts; two telescopic support legs are respectively fixed at lower ends of the outer cylinder and the inner cylinder; a second insertion groove is formed in a position of a top wall of the inner cylinder close to an outer side end; a plugging frame is inserted in the second insertion groove; a piece of dense-hole mesh cloth is fixed in the plugging frame; a water flow adjusting valve plate and the other piece of dense-hole mesh cloth are vertically fixed at a position of the outer cylinder close to the outer side end; the water flow adjusting valve plate is located outside the other piece of dense-hole mesh cloth; an artificial stone cushion layer is pasted and laid on the inner bottom of the inner cylinder. The feralization device is convenient to adjust length and levelness of the telescopic fry tank, also can control water flow, and is simple and practical.

Description

technical field [0001] The invention relates to a device for rewilding fish fry, in particular to a device for rewilding salmon fry. Background technique [0002] Salmon is a famous cold-water anadromous fish that spawns and migrates. It has delicious meat, rich nutrition and high nutritional value. It is an important economic fish in the Heilongjiang River Basin of my country. Its roe is about 7 mm in diameter, bright red and transparent, like amber, with high nutritional value and high price, and is very popular among consumers in Europe and the United States. Due to the impact of water conservancy projects, environmental pollution, harsh fishing and other reasons, the resources of wild salmon have declined sharply. In order to protect the salmon, the Heilongjiang River Basin in my country and many other places have started wild salmon breeding and releasing activities. At present, artificial breeding of salmon fry has also begun in many places. However, under artificia...

Claims

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Application Information

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IPC IPC(8): A01K61/60
CPCY02A40/81
Inventor 马波纪锋李雷张颖
Owner HEILONGJIANG RIVER FISHERY RES INST CHINESE ACADEMY OF FISHERIES SCI
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