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
复制标题
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
DOI:
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发表时间:
2003
期刊:
影响因子:
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通讯作者:
S. Nicol
中科院分区:
文献类型:
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作者:
S. Nicol
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.