象山港网箱养鱼区大型底栖生物生态特征

高爱根; 陈全震; 胡锡钢; 杨俊毅; 董永庭; 曾江宁; 宁修仁; 张健

象山港网箱养鱼区大型底栖生物生态特征

1.
国家海洋局, 第二海洋研究所, 浙江, 杭州, 310012;国家海洋局海洋生态系统与生物地球化学重点实验室, 浙江, 杭州, 310012
2.
国家海洋局, 第二海洋研究所, 浙江, 杭州, 310012

基金项目: 宁波市科学技术委员会资助项目(9920129)

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出版历程
- 收稿日期: 2003-05-20
- 修回日期: 2003-08-21

Ecological characteristics on macrobenthos of net-cage cultural areas in the Xiangshan Bay

1.
Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China;Laboratory of Marine Ecosystem and Biogeochemistry of State Oceanic Administration Hangzhou 310012, China
2.
Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China

摘要

摘要: 通过2000年象山港网箱养鱼区和邻近对照区的4季采样,对该区大型底栖生物进行了分析研究,共鉴定出大型底栖生物41种,网箱养鱼区周边种类39种,对照区9种,约占象山港总种数的58%,网箱养鱼区周边生物量和密度(91.92g/m²和114.96个/m²)明显高于对照区(10.61g/m²和48个/m²).在网箱养鱼区周边沉积物中主要因子均高于对照区,其中硫化物高出4倍多,在网箱养鱼区周边硫化物较低的站位生物量较高,而在网箱养鱼区中央沉积物年均累积速率约25cm,已成黑色并有浓烈异味,未见大型底栖生物分布.
- 大型底栖生物 /
- 生态特征 /
- 网箱养鱼 /
- 象山港
Abstract: Seasonal investigations were carried out on a fish net-cage cultural area and a contrasting area.41 species from study areas were identified.39 species were collected from the cultural area and 9 species from the contrasting area.No any macrobenthos species was found in the center of fish net-cage cultural area.The average biomass and density in the net-cage cultural area are 91.92 g/m² and 115 ind/m²,higher than those in the contrasting area(10.61 g/m² and 48 ind/m²).They are change obviously with the variety of season.Community structure in the net-cage cultural area is more complex than the contrasting area.Main environment factors in the net-cage cultural area such as sulfide and organic compound are higher than the contrasting area.Relationship of macrobent hos and environment factors is discussed.There was not any macrobenthos in the center of fish net-cage cultural area in which the sediment was piled up at the rate of 25 cm/a.
- macrobenthos /
- ecological characteristics /
- fish aquaculture in net-cage /
- Xiangshan Bay

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