Sea urchin offspring seed cultivation method suitable for north multi-algae sea cucumber pen aquaculture

Abstract

The invention discloses a sea urchin offspring seed cultivation method suitable for north multi-algae sea cucumber pen aquaculture. The method includes the following steps: a, catching hemicentrotus pulcherrimus and strongylocentrotus intermedius at the beginning of March, wherein the specification of the hemicentrotus pulcherrimus and the strongylocentrotus intermedius is greater than 50 g; and synchronously heating the hemicentrotus pulcherrimus and the strongylocentrotus intermedius in a seed-raising room to promote maturity, performing constant temperature cultivation on the hemicentrotus pulcherrimus at the temperature of 10 DEG C, and performing constant temperature cultivation on the strongylocentrotus intermedius at the temperature of 18 DEG C; b, controlling the accumulated temperatures of the hemicentrotus pulcherrimus and the strongylocentrotus intermedius, and controlling the mature standard time difference between the hemicentrotus pulcherrimus and the strongylocentrotus intermedius within the range of + / -3 days; c, using the strongylocentrotus intermedius as male parents and the hemicentrotus pulcherrimus as female parents to perform crossbreeding at the beginning of May after the accumulated temperatures of the hemicentrotus pulcherrimus and the strongylocentrotus intermedius reach a standard, and shortening the cultivation time of the sea urchins by feeding artificial feed after young sea urchins are attached; d, performing pool aquaculture when the diameter of the young sea urchins reaches more than 1 cm, and using seaweed as bait in aquaculture; and e, catching the sea urchins for sell after pool aquaculture is performed for 18 months.

Description

technical field [0001] The invention relates to a method for cultivating sea urchin seedlings, in particular to a method for cultivating sea urchin seedlings which are suitable for cultivating sea cucumbers with many algae in the north. Background technique [0002] Seawater pond aquaculture in northern China started in the mid-1980s, when Chinese prawns were the main aquaculture objects. At the beginning of this century, due to the problem of shrimp disease, most of them turned to sea cucumber farming. From 2000 to 2010, sea cucumber pond cultivation achieved excellent economic benefits. At present, the total area of ​​sea cucumber ponds in the country is at the level of 2 million mu, and the industry scale is nearly 20 billion yuan. [0003] In recent years, due to eutrophication in the ponds of sea cucumbers in the north, a large amount of seaweeds such as eelweed and Ulva have grown. If the growth of sea cucumbers cannot be controlled in the ponds, the production of sea...

AI Technical Summary

Problems solved by technology

[0005] The present invention is in order to solve the above-mentioned deficiency existing in the prior art, proposes a kind of cultivating method of the sea urchin seed that is suitable for northern japonicus pond cultivation, will utilize the sea urchin seed that this method obtains and the sea urchin seed to carry out polyculture, can effectively Solve the ecological structure defect of the incomplete biological chain in the sashimi pond