AMPHIDROMY AND MIGRATIONS OF FRESHWATER SHRIMPS. I. COSTS, BENEFITS, EVOLUTIONARY ORIGINS, AND AN UNUSUAL CASE OF AMPHIDROMY
AMPHIDROMY AND MIGRATIONS OF FRESHWATER SHRIMPS. I. COSTS, BENEFITS, EVOLUTIONARY ORIGINS, AND AN UNUSUAL CASE OF AMPHIDROMY
复制标题
淡水虾的双性生殖和洄游。
DOI：
10.1163/ej.9789004174252.i-354.108
复制
发表时间：
2011
期刊：
影响因子：
--
通讯作者：
R. Bauer
中科院分区：
文献类型：
--
作者：
R. Bauer
许多淡水虾（十足目、加勒比海虾）具有两栖生活史，在海中进行长期的浮游幼虫发育。幼虫在上游孵化后漂到海里，或者被雌性带到海里放生。发育后，幼虫（幼鱼）必须迁移回其成年淡水栖息地。因此，一个无游性的生命周期涉及海洋和淡水沃茨之间的长距离迁移。其他淡水虾有缩短（或直接）的幼虫发育（ALD），具有完全的淡水生活周期，没有这种迁移。的生活史模式（amphidromy与ALD）是祖先在淡水虾的问题进行了讨论的成本，效益和繁殖。竞争的假说提出来解释的不寻常的分布的Macrobrachium ohione，一个两栖虾与最近丰富的人口位于非常远（>1500公里）的海洋。
Many freshwater shrimps (Decapoda, Caridea) have amphidromous life histories, with extended planktonic larval development in the sea. Larvae either are hatched upstream to drift down to the sea or are carried and released there by females. After development, postlarvae (juveniles) must migrate back up to their adult freshwater habitat. An amphidromous life cycle thus involves long distance migrations between marine and fresh waters. Other freshwater shrimps have abbreviated (or direct) larval development (ALD) with a completely freshwater life cycle and without such migrations. The question of which life history pattern (amphidromy versus ALD) is ancestral in freshwater shrimps is discussed in terms of costs, benefits, and phylogeny. Competing hypotheses are presented to explain the unusual distribution of Macrobrachium ohione, an amphidromous shrimp with recently abundant populations located very far (>1500 km) from the sea.