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

GAO Ai-gen; CHEN Quan-zhen; HU Xi-gang; YANG Jun-yi; DONG Yong-ting; ZENG Jiang-ning; NING Xiu-ren; ZHANG Jian

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Article Navigation > Haiyang Xuebao > 2005 > 27(4): 108-113

GAO Ai-gen, CHEN Quan-zhen, HU Xi-gang, YANG Jun-yi, DONG Yong-ting, ZENG Jiang-ning, NING Xiu-ren, ZHANG Jian. Ecological characteristics on macrobenthos of net-cage cultural areas in the Xiangshan Bay[J]. Haiyang Xuebao, 2005, 27(4): 108-113.

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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

Received Date: 2003-05-20
Rev Recd Date: 2003-08-21

Abstract

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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