Seawater high-quality pelagic egg sieving and separating method, adopted separation barrel and use method of separation barrel

Abstract

The invention discloses a seawater high-quality pelagic egg sieving and separating method, an adopted separation barrel and a use method of the separation barrel. The seawater high-quality pelagic eggsieving and separating method comprises the following steps that firstly, inflation separation is carried out, wherein seawater is injected into the separation barrel, eggs to be separated are put into the separation barrel, and air inflation is carried out, so that the eggs can suspend in water along with airflow; secondly, sea salt is used for preparing high-salinity seawater, the high-salinityseawater is added into the separation barrel, and the seawater salinity is increased; and thirdly, standing separation is carried out, wherein the separation barrel is covered with a barrel cover, aunique photic zone is formed near a water outlet in the barrel bottom of the separation barrel, after standing, impurities, dead eggs and zooplankters which are accumulated on the barrel bottom are separated through the water outlet of the separation barrel, the pelagic eggs are recovered, and high-quality pelagic egg sieving and separating are completed. According to the seawater high-quality pelagic egg sieving and separating method, after primary separation after, air inflation separation is carried out again in high-salinity seawater by increasing the seawater salinity, further separationof the high-quality eggs from the impurities, the zooplankters and the dead eggs can be prompted, the floating speed of the high-quality eggs is accelerated, the separation effect is improved, and theseparation speed is accelerated.

Description

technical field [0001] The invention relates to the field of optimal separation of fish roe sieves, in particular to a method for optimal separation of seawater buoyant fish roe sieves, a used separation barrel and a method for using the separation barrel. Background technique [0002] The characteristics of fish eggs are also different due to different types of fish. According to the ecological characteristics and specific gravity of eggs, they can be divided into sinking eggs, floating eggs and floating eggs. Among them, the eggs of marine fish are mostly floating eggs. [0003] At present, in the process of prompting broodstock in cages, it is often used to hang 80 mesh or other mesh screens in the cages to prevent the loss of fish eggs. Floating fish eggs float up in seawater under normal circumstances, and fish eggs can be collected by dredging nets. Although most of the collected fish eggs are floating live fish eggs, they are also mixed with dead eggs, and there ar...

AI Technical Summary

Problems solved by technology

Because the egg membrane of fish eggs is relatively thin, and the traditional artemia hatching tank is made of fiberglass fiber, the inner wall of the tank is rough and uneven due to the limitation of the manufacturing process, and the fish eggs are easily scratched by the airflow during the separation and hatching process. , affecting the hatching and seedling cultivation of fish eggs

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