Method for fishing artificially cultured copepods in seawater pond

Abstract

The invention provides a method for fishing artificially cultured copepods in a seawater pond, which includes: making a wingless trap net, which is 3.0m in opening width, 0.6m in height, 8.0m in body length and 80 in mesh number, and a cod-end 4.0m in length and 150 in mesh number; tying the whole opening of the net to a square frame which is made of plastic pipes 3cm in diameter and in 3.0m (upper edge and lower edge)X0.6m (left edge and right edge); driving two stakes 3m away from each other in the center of the pond; tying the square frame for the opening of the trap net to the two stakes; installing a 1.5kw double-wheeled waterwheel type aerator 4.0m away from the front of the opening; starting the aerator to generate water flow in the pond, which flows to the trap net, so that the copepods in the water are filtered in the cod-end of the trap net; operating the aerator for 2-4 hours every day so as to fish pure live copepods weighing about 5-15kg. The method is simple in process, can be operated by one person, and is laborsaving, timesaving and low-cost. Residual copepods, residual fertilizer, residual water and residual foundation feed in the pond can be fully used, and continuous cultivation and fishing of the copepods are guaranteed.

Description

technical field [0001] The invention relates to the technical field of aquatic fishing, in particular to a method for artificially cultivating copepods in seawater ponds. Background technique [0002] Harvesting copepods with nets in natural sea areas depends on the current, but there is no current in aquaculture ponds; in the past, fishing copepods in ponds used light traps, manual fishing, or hauling with motorized boats to drive trawls. These processes are cumbersome , Many people are required to operate, laborious and laborious, and the cost is high; All light emission is a waste of resources and is not conducive to continuous cultivation and harvesting. Contents of the invention [0003] In order to overcome the above-mentioned deficiencies existing in the prior art, the object of the present invention is to provide a method for artificially cultivating copepods in seawater ponds. [0004] In order to achieve the above-mentioned purpose, the present invention adopt...

AI Technical Summary

Problems solved by technology

[0002] Harvesting copepods with nets in natural sea areas depends on the current, but there is no current in the culture ponds; in the past, the harvesting of copepods in ponds used light traps and manual fishing , or use a motorized boat to drive a trawling net and tow it. These procedures are cumbersome, require many people to operate, laborious, and costly; The remaining copepods, fertilizers and basic bait that can be used for propagation are all exhausted, which is a waste of resources and is not conducive to continuous cultivation and harvesting