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Annual variability of planktonic ostracods (Crustacea) in the South Adriatic Sea

机译:南亚得里亚海的浮游类龙虾(甲壳纲)的年度变化

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Temporal variability and population structure of planktonic ostracods were investigated for the first time in the South Adriatic Sea during 1996. The maximal total ostracod abundance (1167 ind·100 m~(-3); 69% juveniles, 18% females and 13% males) was recorded in February. Thirteen species of marine planktonic ostracods were identified. Porroecia spinirostris and Archiconchoecia striata dominated the ostracod assemblage, accounting respectively for 62% and 18% of the total abundance. Their annual peaks were recorded during the cold season, which was the period of their intense reproduction, with favourable temperature conditions and lack of predators. The females surpassed the males in abundance in most species. The presence of the mesopelagic species indicated a strong influence of intermediate layer water masses from the Eastern Mediterranean Sea.
机译:1996年首次在南亚得里亚海调查了浮游性成龙的时间变异性和种群结构。最大成龙总体丰度(1167 ind·100 m〜(-3);幼体69%,雌性18%,雄性13% )记录在2月。鉴定出了13种海洋浮游龙虾。棘轮孢菌和细纹弧菌占主导地位,分别占总丰度的62%和18%。在寒冷的季节记录了它们的年度高峰,这是它们繁殖旺盛的时期,温度条件有利,没有捕食者。在大多数物种中,雌性超过雄性。中古生种的存在表明来自东地中海的中间层水团的强烈影响。

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