CN102524130A - Method for inhibiting growth of macroalgae in Oplopanax elatus culture pond - Google Patents

Abstract

The invention discloses a method for inhibiting growth of macroalgae in an Oplopanax elatus culture pond. Amphithoe japonica that can eat sea grass, Cladophora and other macroalgae is put into the Oplopanax elatus culture pond, to effectively inhibit reproduction and growth of macroalgae. The method can keep balance of natural ecology and improve the environment of Oplopanax elatus pond culture, and is favorable for growth of Oplopanax elatus.

Description

A kind ofly suppress the method that macro grows in the apostichopus japonicus culture pond

Technical field

The present invention relates to technical field of aquaculture, specifically a kind ofly suppress the method that macro grows in the apostichopus japonicus culture pond.

Background technology

Stichopus japonicus has very high nutritive value, has become one of important breed object of China's culture fishery in recent years.In the process of pond culture stichopus japonicus; The phenomenon that occurs a large amount of breedings of macros such as Enteromorpha, bristle algae and growth through regular meeting; This can produce many harm to apostichopus japonicus culture: at first; These macros can cause water quality barren, influence normal breeding and the growth of unit cell algae in the pond, cause stichopus japonicus to lack bait; Secondly, these macros grow in pond bottom in a large number, have occupied the activity space of stichopus japonicus and have twined stichopus japonicus, hinder the activity of stichopus japonicus; The 3rd, these macros can cause pond anoxic, substrate to worsen after high temperature season is dead, rotten, and cause that stichopus japonicus is dead.At present, in the pond culture stichopus japonicus produces, generally adopt the sunshade net is set, methods such as the weed killer herbicide of splashing, artificial salvagings, suppress the breeding and the growth of the interior macro of apostichopus japonicus culture pond.But all there is certain drawback in these methods, regulate breeding and the growth that illumination can be controlled macro though the sunshade net is set, and breeding and the growth of unit cell algae also had certain influence, and purchase the sunshade net, have increased production cost; The chemical herbicide of splashing destroys the pond ecotope, and using dosage is improper also can to cause harmful effect to stichopus japonicus; The artificial labour intensity of salvaging is big, efficient is low.

Summary of the invention

The technical problem that the present invention will solve provides the method that macro grows in a kind of simple and effective inhibition apostichopus japonicus culture pond.

For solving the problems of the technologies described above, the present invention adopts following technical scheme: in the apostichopus japonicus culture pond, drop into the algae gammarid, the algae gammarid gnaws macros such as Enteromorpha, bristle algae in a large number, suppresses the breeding and the growth of these macros.

The algae gammarid is the meiofauna of Arthropoda, Crustachia, Amphipoda, algae Gammaridae, and in natural marine site, the algae gammarid lives in the marine alga clump or on the blade, is food with tangleweed and organic debris mainly.Because the algae gammarid is the habitat with the macro and main food, grow when vigorous when macro in the pond, the algae gammarid of input is through natural propagation, and its colony's quantity is increase thereupon also; Otherwise when the macro in the pond reduced, the algae gammarid of input was owing to lack habitat and food, will natural death, and its colony's quantity also reduces thereupon, thereby forms the ecological balance of nature.Dropping into the algae gammarid density in apostichopus japonicus culture pond decides according to kind and the growing state of large-scale algae in the pond.In the apostichopus japonicus culture pond, the algae gammarid can with the stichopus japonicus symbiosis, do not influence normal growth and the growth of stichopus japonicus, dead algae gammarid becomes the foodstuff of stichopus japonicus.

The invention has the beneficial effects as follows: keep balance of nature on the one hand, utilize the algae gammarid to gnaw macro, just can suppress the breeding and the growth of macro, improve the environment of pond culture stichopus japonicus, help the growth of stichopus japonicus; On the other hand, need not to use chemical herbicide, help environmental protection.

Embodiment

Below in conjunction with embodiment, the present invention is described further.

In the apostichopus japonicus culture pond, drop into the algae gammarid, the algae gammarid freely perches in marine alga clumps such as Enteromorpha, bristle algae or on the blade, and gnaws macros such as Enteromorpha, bristle algae in a large number, just can suppress the breeding and the growth of these macros.The algae gammarid in the apostichopus japonicus culture pond with the stichopus japonicus symbiosis, do not influence normal growth and the growth of stichopus japonicus.When macro in the pond is grown when vigorous, the algae gammarid of input is through natural propagation, and its colony's quantity also increases thereupon.Otherwise when the macro in the pond reduced, the algae gammarid of input was owing to lack habitat and food, natural death gradually, and its colony's quantity also reduces thereupon, and dead algae gammarid becomes the foodstuff of stichopus japonicus.

Claims (1)

1. one kind is suppressed the method that macro grows in the apostichopus japonicus culture pond, it is characterized in that: in the apostichopus japonicus culture pond, drop into the algae gammarid, the algae gammarid gnaws macros such as Enteromorpha, bristle algae in a large number, suppresses the breeding and the growth of these macros.