Density, biomass and community structure of megabenthos in Ise Bay, central Japan
Density, biomass and community structure of megabenthos in Ise Bay, central Japan
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日本中部伊势湾巨型底栖动物的密度、生物量和群落结构
DOI：
10.2331/fishsci.62.350
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发表时间：
1996
影响因子：
1.9
通讯作者：
H. Sekiguchi
中科院分区：
文献类型：
--
作者：
Moazzem Hossain;T. Amakawa;H. Sekiguchi
为了了解伊势湾大型底栖动物与夏季缺氧水的发育和流行有关的一般特征，从1993年4月到1994年4月进行了全年的调查。从1993年4月到9月，甲壳类和鱼类占绝对优势，而棘皮类从11月开始占绝对优势。有5种大型底栖动物占绝对优势，分别是口口虾(口足目)、前庭鳞甲、双斑短尾藻(短尾目)、海燕总科(Asteroidae)和瓦伦西尼鱼(Repomucenus Valenciennei)(双鱼纲)。伊势湾大型底栖动物的群落结构(如物种多样性、ABC比较、等级-多度关系和群落类型)随季节发生显著变化，与湾底低氧水的发展和消亡密切相关。
In order to know the general features of megabenthos in Ise Bay in relation to the development and prevalence of oxygen-poor water in summer, an investigation was undertaken throughout the year from April 1993 to April 1994. Crustaceans and fishes were absolutely dominant from April to September 1993, while echinoderms being dominant since November. Five species of megabenthos were absolutely dominant: Oratosquilla oratoria (Stomatopoda), Carcinoplax vestita, Charybdis bimaculata (Brachyura), Luidia quinaria (Asteroidea), and Repomucenus valenciennei (Pisces). Community struc ture (e.g. species diversity, ABC-comparison, rank-abundance relationships and community type) of megabenthos in Ise Bay drastically changed with season, intimately related with development and perishment of oxygen-poor water at the bottom of the bay.