A kind of ecological cultivation method of the bait of the larvae of the brown calamari scorpionfish

Abstract

The invention relates to an ecological cultivating method for initial feed of sebastiscus marmoratus larva. The method is characterized in that a cement or film side slope is arranged in a feed cultivating pool; the non-leaking muddy or sandy sediment is arranged as the bottom sediment; the water depth is 1-2m; independent water feeding / draining facility and aerator are arranged. The method comprises the following steps: sterilizing the feed cultivating pool with water containing 20ppm bleaching powder in the period from each December to the January in next year; after 2 days, dryly disinfecting the pool with 150kg / mu quick lime; exposing for one week and then feeding water; covering a 60-mesh silk gauze at a water inlet, wherein the water resource is natural river water and the salinity is 1.2-2.0; collecting copepods from the other pond and inoculating into the feed cultivating pool, after water is fed into the feed cultivating pool for one week and water in the pool becomes yellow green; after inoculating the copepods, stocking palaemon carinicauda and 2-year old coilia ectenes and feeding prawn mixed feed for one time per day; collecting the small zooplankters including copepods nauplius, small anhistozoa, rotifer, and the like, as the initial feed of sebastiscus marmoratus larva, when the water temperature is 15 DEG C or above.

Description

technical field [0001] The invention relates to a method for cultivating fish bait, in particular to a method for ecologically cultivating bait for larvae of brown squid larvae. Background technique [0002] Brown calamus (Sebastiscus marmoratus) is a warm-temperate bottom oviviparous fish belonging to the order Scorpionidae, suborder Scorpio, family Scorpionidae, and the genus Scorpion. It is widely distributed in coastal areas and is a sedentary fish on islands and reefs. Because of its tender meat, delicious taste and high economic value, it is one of the best species for marine ranching, fishing and leisure tourism. In recent years, due to the continuous upgrading of marine fishery tools and the continuous warming of recreational fishing, the resources of the brown calamari are increasingly depleted. The primary problem in breeding is the opening of the larvae. At present, rotifers are generally the main bait for fish fry, while the breeding season of the brown calamar...

AI Technical Summary

Problems solved by technology

[0005] Compared with the prior art, the outstanding features of the present invention are: 1) solve the problem that the open bait cannot be obtained in the low temperature season in the cultivation process of the scorpionfish seedling; 2) use the greenhouse technology to obtain a large amount of open bait one month earlier , which laid the foundation for the industrialized nursery of the brown calamari; 3) Using the biological suppression method, a large amount of open bait can be collected from the middle and late March to the beginning of June; In order to suppress the large zooplankton in the bait cultivation pond, the population of copepod nauplius was ensured; the introduction of the white prawn and the second-year-old sword anchovy also made full use of the space of the bait cultivation pond, and tapped the production potential of the bait cultivation pond , improve the utilization efficiency of the water body, expand the production capacity of the water body, increase the output of the pond, and improve the economic benefits