Eel fry fixed-net catching method

Abstract

The invention provides an eel fry fixed-net catching method, which comprises a catching device, wherein the catching device includes a conical net body, and the conical tip of the net body is providedwith a fry holding device. According to the method, an entrance at which the temperature of sea water is similar to the temperature of river water and the water flow is great is selected, a water temperature of about 10-14 DEG C is the most suitable, and the net is released during the spring tide or the rising tide; the other end of the net body is a net opening, the upper part and the lower partof the net opening are respectively threaded with floaters and sinkers, the orientation of the net opening is opposite to the anadromous direction of eel fries when the net body is placed, the sinkers are put into the water, and the floaters are enabled to float on the water surface; the net opening is stretched and opened by using fixing ropes and anchors; the fry holding device includes a filtering net communicated with the conical tip of the net body, the external part of the filtering net is provided with a net tail connected with the net body; the tail end of the net tail is provided with a tied opening, the tail end of the tail net is further provided with a net tail fixing rope and an anchor which straightens the net body so as to enable the net body to stretch, and the net tail isconnected with a marking floater. The eel fry fixed-net catching device can improve the eel fry catching amount, and can protect the eel fries from being damaged during the collection and transportation.

Description

technical field [0001] The invention relates to the field of eel fry fishing, in particular to a method for fishing eel fry with fixed nets. Background technique [0002] The scientific name of river eel is eel, which is a kind of downriver migratory fish. It is native to the sea, goes up the river to grow up in fresh water, and then returns to the sea to lay eggs. The nutritional value of eel is very high, so it is called the soft gold in water, and it has been regarded as a nourishing and beauty product in China and many parts of the world since ancient times. Every spring, a large number of juvenile eels (also known as Baizi, eel line) enter the river estuary from the sea in groups. Because eel seedlings cannot be cultivated by artificial propagation, eel seedlings mainly come from artificial fishing in estuary areas. Dongtou is located outside the Oujiang Estuary, where salty and fresh waters meet. Every year from November to March of the lunar calendar is the season f...

AI Technical Summary

Problems solved by technology

Getou Village has always had a tradition of fishing eel fry. There are currently 39 fishing boats specializing in fishing eel fry, with 70 employees and an annual output value of more than 3 million yuan. The eel fishing industry occupies an important position in the collective economy of the village. However, In recent years, due to the impact of environmental changes and reclamation projects, as well as the backwardness of fishing technology and fishing tools, the catch of eel fry has declined, which directly threatens the income of fishermen and the improvement of living standards. In order to further compensate for the production of eel fry The loss caused by the decline, it is urgent to upgrade the existing fishing tools and fishing technology

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