Synchronization of endogenous tidal vertical migration rhythms in laboratory-hatched larvae of the crab Carcinus maenas
作者: Chaoshu ZengErnest Naylor
作者单位: 1School of Ocean Sciences, University of Wales-Bangor, Menai Bridge, Gwynedd LL59 5EY, UK
刊名: Journal of Experimental Marine Biology and Ecology, 1996, Vol.198 (2), pp.269-289
来源数据库: Elsevier Journal
DOI: 10.1016/0022-0981(96)00004-4
关键词: Carcinus maenasEndogenous tidal vertical migration rhythmsHatchingLarvaeSynchronizer
原始语种摘要: Abstract(#br)Previous studies showed that freshly collected zoea-1 larvae of the shore crab Carcinus maenas from coastal waters possessed endogenous circatidal vertical migration rhythms. Present experiments demonstrate that zoea-1 larvae released by crabs which extruded eggs in the field but were then kept in laboratory constant conditions since collection, also exhibited endogenous circatidal vertical migration rhythms. Such rhythms were shown by newly hatched larvae from nearly all of 50 females which released larvae in the laboratory, some of which had carried eggs in the laboratory for up to 3–4 months. Thus, since entrainment by tidal variables could not have occurred during embryonic development in these cases, other synchronising factors must set the phase of the larval circatidal...
全文获取路径: Elsevier  (合作)
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