Artificial fish reef construction method based on sandy tidal flats in intertidal waters of estuaries

Abstract

The invention relates to an artificial fish reef construction method using sandy beach in estuary intertidal waters as foundation. The method comprises the steps of A) selecting moso bamboo being 5 to 6cm in diameter, and cutting into unified 2.2m sections to be used as a reef body, wherein the unified 1.7m length is treated as a sand feeding section; B) treating the rough end as the sand feeding end, and drilling a hole at every 20cm in the sand feeding section, wherein the holes are 0.5 to 0.8cm and can pass through bamboo bodies, the moso bamboo cannot be cracked due to hole drilling, and any cracked moso bamboo cannot be put into use; C) vertically impacting the sandy land through a water gun until forming a hole being 6 to 7cm in diameter and 1.6 to 1.8m in depth, immediately inserting the reef body into each hole from the sand feeding end, wherein san flows into the reef body through the hole and counteract the floating force together with the frictional force of the outside of the reef body; fixing the reef body on the beach; exposing 45 to 55cm reef body from the surface of the sandy land, an finishing the single fish reef after the sand reflows to fix the reef body; D) centrally fixing a plurality of reef bodies to form a reef array; the space of the adjacent reef bodies in the reef array is 2cm.

Description

technical field [0001] The invention relates to a method for constructing artificial fish reefs, in particular to a method for constructing artificial fish reefs based on sandy shoals in intertidal waters of estuaries. Background technique [0002] By definition, artificial reefs are structures artificially set up in the sea. Their purpose is to improve the ecological environment of the sea area, create a habitat for marine life, and provide places for fish to reproduce, grow, feed and avoid enemies. Conservation, enhancement and catch enhancement purposes. It is generally believed that the United States first launched and researched artificial fish reefs in 1935, and my country launched the first concrete fish reef in the Beibu Gulf of Guangxi Province in 1979, and promoted it to other 8 coastal provinces and cities. At present, artificial fish reefs have been widely developed at home and abroad. Reef construction has achieved good economic and ecological benefits. [0003...

AI Technical Summary

Problems solved by technology

[0004] Due to the bottom quality environment of sandy tidal flats in the Yangtze River Estuary, the above artificial fishing reef types cannot be used normally in the Yangtze River Estuary. Experiments have shown that after the above-mentioned structures are installed on sandy tidal flats, they will be completely submerged in the sand layer in a short period of time and cannot function effectively. artificial reef

Images