ホタテ貝殻礁に蝟集する底生生物群集の特性について

抄録

Recently, marine products are cultivated and preserved in the inside the harbor. Therefore, organic matter like feces of fishery products and remainder of feed is deposited at the bottom of aqua farm, and sediment is polluted. On the other hand, the promotion of utilization of the scallop shell exhausted 200, 000t during year is a regional problem in Hokkaido. Then, we constructed the artificial reefs of scallop shell at the bottom of aqua farm and created detritus feeder's habitat, and aimed at the establishment of prevention technology of environmental deterioration that used detritus feeder's physiological function. In the main discourse, we compared shell reef's community and a peripheral benthic community, and examined the characteristic. As a result, the biota by a species different from a peripheral benthic community was formed in the shell reefs. Therefore, the installation of the shell reef obtained the characteristic of enabling the immigration of the benthos in the point of habitat creation.