SINK OR SWIM - ACCUMULATION OF BIOMASS AT FRONTS
SINK OR SWIM - ACCUMULATION OF BIOMASS AT FRONTS
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DOI：
10.3354/meps082001
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发表时间：
1992-05-01
影响因子：
2.5
通讯作者：
FRANKS, PJS
中科院分区：
文献类型：
--
作者：
FRANKS, PJS
通常在锋面上看到的密集的生物量通常被解释为生物体对锋面环境的生理反应。然而，生物量增加的一部分可以通过纯粹的物理过程来解释：漂浮、下沉或游泳与锋面流动的相互作用。为了探索这一假设，我提出了一个稳定的二维跨额循环模型，并将其与各种游泳行为相结合。这些模型显示了如何通过滞留和堆积区在锋面上形成斑块，以及在给定不同的流动和游泳特征时演变的模式。讨论了这些结果的生态学意义。
The dense concentrations of biomass commonly seen at fronts are often explained by a physiological response of the organisms to the frontal environment. However, some fraction of the enhanced biomass may be explained through purely physical processes: the interaction of floating, sinking or swimming with the flows at a front. To explore this hypothesis, I present a model of steady, 2-dimensional cross-frontal circulations, which I combine with a variety of swimming behaviors. The models show how patchiness may arise at fronts through retention and accumulation zones, and the patterns which evolve given various flow and swimming characteristics. The ecological significance of the results is discussed.