Living krill, zooplankton and experimental investigations: a discourse on the role of krill and their experimental study in marine ecology

Living krill, zooplankton and experimental investigations: a discourse on the role of krill and their experimental study in marine ecology
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活磷虾、浮游动物和实验研究:关于磷虾及其在海洋生态学中的实验研究的作用的论述

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发表时间:
2003
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通讯作者:
S. Nicol
S. Nicol
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作者:
S. Nicol

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磷虾在许多海洋生态系统中占据着重要的位置,并且一直是许多协同研究的主题,但它们的生物学仍然是一个谜。大多数种类的磷虾是开放的海洋动物,这使得直接观察和采样变得困难。磷虾还表现出一些生理和行为属性,这使人们无法了解它们的生活史。磷虾在概念上很难理解;它们显然不同于鱿鱼、鱼、鲸鱼和鱼类等大型海洋生物,但它们也与桡足类等浮游动物截然不同。尽管有这些差异,它们最常被归类为浮游动物,并已使用为动物开发的技术进行研究,这些动物比它们小几个数量级。这种不匹配影响了我们对它们与物理世界相互作用的看法,也影响了它们感知到的营养相互作用。它们的大小和流动性也妨碍我们对其进行有效取样,从而使我们无法了解它们在海洋生态系统中的真正作用。了解磷虾等中型动物如何在水生生态系统中发挥作用,对于更好地管理海洋环境至关重要。
Krill occupy critical positions in a many marine ecosystems and have been the subject of a number of concerted studies yet there are large areas of their biology that still remain a mystery. Most species of krill are open ocean animals, which makes direct observation and sampling difficult. Krill also exhibit a number of physiological and behavioural attributes which frustrate attempts to understand their life history. Krill are conceptually difficult to come to terms with; they are obviously different from larger marine organisms such as squid, fish, whales and fish yet they are also quite distinct from those animals classed as zooplankton such as copepods. Despite these differences they have most often been grouped with zooplankton and have been studied using techniques developed for animals which are orders of magnitude smaller than they. This mismatch has affected our view of their interactions with the physical world and also affects their perceived trophic interactions. Their size and mobility also interferes with our ability to sample them effectively and thus to develop our appreciation of their true role in the marine ecosystem. Understanding how intermediate-sized animals, such as krill, function in aquatic ecosystem is critical to better management of the marine environment.