Cultivating method of marmoratus fish fries

Abstract

The invention discloses a cultivating method of marmoratus fish fries. The cultivating method includes using chlorella liquid to reduce noxious substance in water body under the light-control, temperature-control and water-control conditions, intensifying water flea, increasing nutrition of fries and advanced fries, reducing death rate during a transformation period from the fries to the advanced fries, utilizing shells to form a shielded place on the bottom of the water body and sargassum algae to form a shielded place from the bottom of the water body to water surface to hide the fries and the advanced fries, avoiding killing and devouring during period of the fries and the advanced fries, and increasing survival rate. The survival rate of the marmoratus fish fries can reach 29% or so, and cultivating cost of the marmoratus fish fries can be reduced by domesticating the marmoratus fish fries with compound feed to enable the marmoratus fish fries to adapt the compound feed.

Description

technical field [0001] The invention relates to a technique for raising seedlings of the brown calamari on nematode slides, in particular to a method for cultivating the brown calamari fry. Background technique [0002] Brown calamari ( Sebastiscus marmoratus ), also known as tiger head fish, is a small warm-temperate bottom fish that likes to inhabit the coastal waters of rocky reefs. It is widely distributed along the coasts of Japan, South Korea, the Philippines and other countries, as well as the southern East my country Sea and the South China Sea. Brown calamari is the main catch of fishing operations and gillnet operations in my country's offshore rocky waters. In recent years, due to the continuous upgrading of marine fishery tools and the continuous warming of recreational fishing, the resources of brown calamari are increasingly depleted. In the 1970s and 1980s, Japan began to conduct systematic research on the production technology of brown calamari seedlings an...

AI Technical Summary

Problems solved by technology

Since the 1990s, some fishery research departments in provinces such as Zhejiang and Dalian have also successively studied the physiological habits and seedling cultivation techniques of the scorpionfish, such as the invention patent of CN101444192, which discloses the scorpionfish from hatching, The process of larvae cultivation and juvenile fish rearing. The disclosed conditions for larvae cultivation and juvenile fish rearing are palatable bait and water change conditions. However, the mortality rate of fry in the process of seedling cultivation is currently high, and the number of juvenile fish produced is far from meeting domestic Market demand

According to our research, we found that the main difficulties in the breeding technology of brown calamari fish fry are as follows: 1. The mortality rate is high during the metamorphosis period from larvae to juveniles; 2. Serious cannibalism between juveniles and juveniles