Vertical migration and cross-shelf dispersal of larval Cancer spp. and Randallia ornata (Crustacea: Brachyura) off the coast of southern California
Vertical migration and cross-shelf dispersal of larval Cancer spp. and Randallia ornata (Crustacea: Brachyura) off the coast of southern California
复制标题
癌症幼虫的垂直迁移和跨架传播。
DOI：
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发表时间：
1986
期刊：
影响因子：
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通讯作者：
A. Shanks
中科院分区：
文献类型：
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作者：
A. Shanks
Cancer spp.和Randallia ornata的幼虫在大陆架底部附近的水域之间或大陆架以外水域<80 m的深度之间进行每日垂直迁移。不同个体发育阶段，雏鸟在雏鸟体内停留的时间不同，这可能会影响它们的扩散。Zoea第1至第4阶段在夜间处于纽斯顿，由于陆风产生的表面流，可能会经历净离岸输送。第五阶段的动物和巨鸟在下午或晚上进入neuston，但在20:00至02:00之间迁移回水柱。由于海风产生的表面流，这些后期幼虫可能经历净岸上运输。
Larval Cancer spp. and Randallia ornata make a diurnal vertical migration between the neuston and the waters near the bottom over the continental shelf, or to depths <80 m in the waters off the shelf. The time of day spent in the neuston differs with ontogenetic stage and may affect dispersal. Zoea stages I to IV were in the neuston during the night and may experience net offshore transport due to surface currents generated by the land breeze. Stage V zoeas and megalopas entered the neuston during the afternoon or evening, but migrated back down into the water column between 20.00 and 02.00 hrs. These late larval stages may experience net onshore transport due to surface currents generated by the sea breeze.