Method for acquiring ecological early breeding seeds of acanthogobius ommaturus Richardson

Abstract

The invention discloses a method for acquiring ecological early breeding seeds of acanthogobius ommaturus Richardson, and relates to technologies for acquiring early seeds for early breeding for acanthogobius ommaturus Richardson. The method includes selecting parent fish; controlling the breeding quantities; selecting heat-insulation sheds of ponds; cultivating the parent fish through the winters; collecting fish fries. The method is characterized in that the parent fish with the weight ranging from 100 grams to 250 grams is selected in periods from November to December, and is cultivated in the ponds for takifugu rubripes through the winters, nylon films are constructed to form heat-insulation greenhouses on the upper sides of the ponds, the areas of the ponds preferably range from 3mu to 8mu, the ratio of female parent fish to male parent fish is 1:1, 10-12 pieces of parent fish is bred in each mu of the ponds under the control, 3-5 kilograms of live exopalaemon carinicauda are placed in each mu in winter cultivation periods and are used as fodders for the parent fish, water is changed regularly, an excellent water quality condition needs to be kept, 1.2-meter water levels of the ponds are kept, and the salinity of the water in the ponds keeps ranging from 6%o to 15%o; the fish fries are sampled after 20th of March in the next year, growth conditions of the fish fries are inspected, and the fish fries are timely collected and distributed when the sizes of the growing fish fries range from 4 centimeters to 6 centimeters.

Description

technical field [0001] The invention relates to a method for early breeding of gobies to obtain early seedlings, in particular to a method for obtaining ecological early-propagation seedlings of gobies. Background technique [0002] Spottail goby ( Acanthogobius ommaturus Richardson), also known as the lancetail goby or the spot-tail goby, belongs to the order Perch, the family Goby, and the genus Goby. Commonly known as light fish, oil light fish, etc., it is widely distributed in coastal areas, harbors and estuaries, and likes to inhabit waters with silt or sediment bottom. It is a carnivorous fish with fierce habits. It mainly feeds on juvenile fish, shrimps, crabs and small molluscs. It is also common for large individuals of the same kind to eat small ones. Gobies are larger and grow faster. Adults can grow to 150g-250g, and a small number of individuals can grow to about 500g. Familiar and favored by the public, it has certain economic value. Although there is a c...

AI Technical Summary

Problems solved by technology

Since the 1970s, some scholars in my country have successively carried out some biological research on the goby. In recent years, its breeding a