【摘要】 2000年在象山港3个养殖区(海带、牡蛎、鱼类)和非养殖区水域进行了四季调查,对养殖区和非养殖区大型底栖生物的生态学进行比较研究。调查鉴定出71种大型底栖生物,其中养殖区45种、非养殖区61种,两区共有种为35种。牡蛎养殖区外侧、鱼类网箱养殖区周围平均生物量和密度分别高达433.53g·m-2和155ind·m-2、91.92g·m-2和114.96ind·m-2;海带养殖区仅为1.55g·m-2和27.5ind·m-2,也明显低于非养殖区5.24g·m-2和53.04ind·m-2;鱼类网箱养殖区中心未见生物分布。本文同时对底栖生物与养殖生物、沉积物及水文环境因子的相关性作了研究探讨。更多还原

【Abstract】 Seasonal investigations were carried out for 3 cultured areas (of algae, oyster and fish) and noncultured area in Xiangshan Bay. 71 species from study areas were identified. 45 species of them were collected in cultured areas, 61 species in noncultured area, 35 species from both cultured and noncultured areas. The biomass and density in oyster and fish cultured areas were 433.53g·m-2 and 155ind·m-2, 91.92g·m-2 and 115ind·m-2 respectively. It was higher than that in algae cultured area and noncultured areas. The biomass and density in algae cultured area were 1.55g·m-2 and 27.5ind·m-2,which was lower than that in noncultured area (5.24g·m-2 and 53.04 ind·m-2). No macrobenthic species was found in the center of fish cultured area. The relativity of the benthos with sediment, reared biology and hydrographic factors is discussed.更多还原