A method for increasing the metamorphic attachment rate of eye-spot larvae of Pinctada martensii

Abstract

The invention discloses a method for increasing the metamorphosis adhesion rate of eyespot larvae of pinctada martensi and belongs to the technical field of aquaculture. The method comprises the basicsteps of preparation of an adhesion water pond for the eyespot larvae of pinctada martensi, collection of the eyespot larvae, medicine feeding and young pinctada martensi breeding management; in theprocess of breeding young pinctada martensi, the eyespot larvae without metamorphosis adhesion in a young pinctada martensi breeding pond are collected and moved to a young pinctada martensi breedingpond with fully hung young pinctada martensi collection instruments for cultivation, antibiotics and vitamins are used for improving ingestion and digestion of the eyespot larvae, and the metamorphosis adhesion rate of the eyespot larvae of pinctada martensi is increased. By adopting the method, large-scale manual young pinctada martensi breeding of pinctada martensi is conducted, the metamorphosis adhesion rate of the larvae is high, the individual size of young pinctada martensi is even, the young pinctada martensi breeding yield of pinctada martensi can be increased, and the economic benefit of pinctada martensi can be improved; the method is suitable for large-scale manual young pinctada martensi breeding of pinctada martensi, easy to apply and popularize and obvious in social benefitand economic benefit.

Description

technical field [0001] The invention relates to a method for improving the metamorphic attachment rate of pinnacles martensii eye-spot larvae, belongs to the technical field of aquaculture, and is suitable for large-scale artificial seedling production of pinnacles martensii. Background technique [0002] Martensii pearl oyster ( Pinctada martensii ), also known as Hepu pearl oyster, is the main species of cultured seawater pearls in my country. The pearls cultivated with martensii oyster are called "South Pearl", and the pearls produced by it account for more than 90% of the seawater pearl production. "Nanzhu" breeding is a characteristic industry of my country's agriculture, and it is also a pillar industry in the coastal area of ​​Leizhou Peninsula, Guangdong Province. At its peak, the breeding area exceeded 53,800 mu, and 45,000 people were engaged in the pearl industry. More than 70%, forming a huge industrial chain of seedling cultivation, mother oyster breeding, nucle...

AI Technical Summary

Problems solved by technology

During the cultivation of Pinctada martensii seedlings, nursery enterprises and nursery farms use the method of putting seedling pickers multiple times without changing the water for artificial seedling cultivation. It usually takes 6-10 days after the seedling pickers are put in to fully attach. 5-7 days after the seedling device was put in, dead algae and newly grown diatoms, larvae secretions, and bacteria in the water body in the nursery pond adhered to the attachment plate of the seedling picker, making the attachment plate slippery and causing no metamorphosis The larvae cannot attach abnormally to the attachment plate; secondly, even if the newly attached larvae after metamorphosis are small, the size of the seedlings coming out of the pond will be uneven; thirdly, if the eye-spot larvae do not attach abnormally for a long time, they will die naturally or be drained by changing the water. drop, resulting in low utilization rate of eye-spot larvae