Method for preventing larva conglutination in culture of pinna pectinata larvae

Abstract

The invention discloses a method for preventing larva conglutination in the culture of pinna pectinata larvae, which is characterized in that: firstly, selecting a culture workshop which has a 20 to 30-cubic-meter pool 1.0 to 1.2 meter with a depth of 1.0 to 1.2 meters as well as an illumination intensity of 100 to 200 luxes and uses secondary sand-filtered seawater; secondly, in the culture period of the larvae, the density of the larvae is controlled to be 0.5 to 1 individual per milliliter; and thirdly, in the culture period of the larvae, culturing the larvae with flowing water for 1 to 2 hours each time, 3 to 4 times each day, continuously charging air each day, performing at least one time of bottom suction water change each day, and feeding the larvae with fresh, pollution-free, filtered and sterilized chlamydomonas bait. When the method is used, the pinna pectinata larvae can distribute in water uniformly, the number of larvae died from upward floating and conglutination is lowered, the survival rate of the pinna pectinata larvae is improved and a guarantee is provided for the industrial culture of pinna pectinata.

Description

Technical field [0001] The invention relates to a method for cultivating larvae in the larvae of Castanopsis fargesii, in particular to a method for preventing adhesion of the larvae during the cultivation of the larvae of Castanopsis chinensis. Background technique [0002] Pinna (Atriina) pectinata Linnaeus (Pinna (Atriina) pectinata Linnaeus) is commonly known as belt, and in the north it is commonly known as "sea red" and "sea shovel". In the south, Fujian is called "earth cup" and "horsehoe"; Zhejiang is called "sea mussel"; Guangdong is called "horn belt" and "paper knife"; Taiwan is called "horn shell", etc., belonging to the phylum Mollusca (Mollusca) , Lamellibranchia (Lamellibranchia), Pterimorphia (Pterimorphia), Mytiloida (Mytiloida), Pinnidae, Pinna (Pinna) shellfish, in China's Bohai Sea, Yellow Sea, East China Sea, South China Sea It is distributed from the Liaodong Peninsula in the north to the Qiongzhou Strait in the south. It is a large-scale edible shellfish w...

AI Technical Summary

Problems solved by technology

In recent years, resources have been greatly reduced due to overfishing, which is far from meeting the needs of domestic and foreign markets. It is urgent to carry out artificial seedling cultivation and resource restoration work for P. Completely solved, one of the main reasons for the failure of artificial seedling cultivation is the problem of larvae sticking to each other in the process of larvae cultivation, how to overcome the problem of adhesion in the process of larvae cultivation is the main bottleneck technology of artificial cultivation of P.