Vigliola Laurent, Meekan Mark G
Australian Institute of Marine Science, Townsville MC Queensland, Australia, 4810.
Oecologia. 2002 Mar;131(1):89-93. doi: 10.1007/s00442-001-0866-4. Epub 2002 Mar 1.
Coral reef fishes, like many marine organisms, have a complex life history that consists of a planktonic larvae stage and a benthic juvenile or adult stage. We used the growth records in the otoliths of a common damselfish to investigate the extent to which processes in the plankton determined the outcome of events after benthic settlement. Sequential samples of the same cohort showed that individuals that survived intense selective mortality 1-3 months after settlement were those fish that were the larger members of the cohort at hatching and grew faster during planktonic life. Such links between life history phases are likely to occur in reef fishes whenever there is selection for a trait that is cumulative, such as size. They may not only operate between life history stages in the same individuals, but even between those of different generations via maternal effects on size at hatching.
与许多海洋生物一样，珊瑚礁鱼类具有复杂的生活史，包括浮游幼体阶段和底栖幼鱼或成鱼阶段。我们利用一种常见雀鲷耳石中的生长记录，来研究浮游阶段的过程在多大程度上决定了底栖定居后事件的结果。对同一群体的连续样本显示，在定居后1至3个月经历了强烈选择性死亡后存活下来的个体，是那些在孵化时为群体中较大成员且在浮游生活期间生长较快的鱼类。只要对诸如大小这样的累积性状进行选择，生活史阶段之间的这种联系就可能在珊瑚礁鱼类中出现。它们不仅可能在同一个体的生活史阶段之间起作用，甚至可能通过母体对孵化时大小的影响在不同代个体之间起作用。
