Are Antarctic suspension-feeding communities different from those elsewhere in the world?
Are Antarctic suspension-feeding communities different from those elsewhere in the world?
复制标题
南极的悬浮饲养群落与世界其他地方的群落有什么不同吗？
DOI：
10.1007/s003000100257
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发表时间：
2001
期刊：
影响因子：
1.7
通讯作者：
M. Zabala
中科院分区：
文献类型：
--
作者：
J. Gili;R. Coma;C. Orejas;P. López;M. Zabala
抽象的。本文回顾了南极大陆架群落中底栖悬浮动物的营养生态学，在SCAR的EASIZ计划内进行了研究，并与其他海域公布的信息进行了比较。密集的底栖悬浮-摄食生物群落捕获大量的颗粒物，可能直接调节沿岸的食物链的初级生产，并间接调节次级生产。大多数工作已经在温带和热带海域进行，然而，很少有人知道在寒冷的环境中悬浮馈线。最近对南极沿岸的底栖悬浮食饵动物的研究表明，冬季不活动的时期可能只持续几个星期。这与以下假设形成对照：南极群落在南半球冬季至少有6个月的最低活动期。其他海洋的研究结果可以解释在这种条件下密集的底栖生物群落是如何形成的。替代食物来源，即“细馏分”，沉积物再悬浮，横向平流和有效的食物同化可能会发挥重要作用，在悬浮-馈线为主，非常多样化，高生物量和三维结构的社区在南极大陆架的发展。
Abstract. This paper reviews the trophic ecology of benthic suspension feeders in Antarctic shelf communities, studied within SCAR's EASIZ Programme, in comparison with published information from other seas. Dense benthic suspension-feeder communities capture large quantities of particles and may directly regulate primary, and indirectly, secondary production in littoral food chains. Most work has been performed in temperate and tropical seas; however, little is known about suspension feeders in cold environments. Recent studies on Antarctic littoral benthic suspension feeders suggest the period of winter inactivity may last only a few weeks. This contrasts with the hypothesis that in Antarctic communities there is a prolonged period of minimal activity lasting at least 6 months during the austral winter. Results from other oceans may explain how dense benthic communities could develop under such conditions. Alternative food sources, i.e. the "fine fraction", sediment resuspension, lateral advection and efficient food assimilation may play a significant role in the development of suspension-feeder dominated, very diversified, high biomass and three-dimensionally structured communities on the Antarctic shelf.