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首页> 外文期刊>Marine ecology >Small macro-benthic invertebrates influence the survival, growth and behaviour of juvenile green sea urchins Strongylocentrotus droebachiensis in the laboratory
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Small macro-benthic invertebrates influence the survival, growth and behaviour of juvenile green sea urchins Strongylocentrotus droebachiensis in the laboratory

机译：小型大型底栖无脊椎动物在实验室中影响少年绿海顽童Strebylocentrotus droebachiensis的生存，生长和行为

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摘要

Recent settlers of many marine benthic invertebrates are cryptic, which exposes them to a suite of animals that differs from those they may experience as adults, potentially resulting in interactions causing mortality and/or reducing growth. Previous field experiments have indicated that such is the case with small juvenile green sea urchins Strongylocentrotus droebachiensis but which taxa are responsible for the mortality and reduced growth was not determined. A laboratory study was conducted to examine the effects of small macro-benthic invertebrates, specifically chitons, scaleworms and larger juvenile conspecifics, as well as the full suite of cobble-dwelling organisms, on the mortality, growth and behaviour of small (<3 mm) juvenile sea urchins. The likelihood of survival of small juvenile sea urchins was lower in the presence of larger juvenile sea urchins or with the full suite of cobble-dwelling organisms than in the absence of animals. The small juvenile sea urchins survived and grew the best when they were with chitons and scaleworms. The behaviour of small sea urchins with the full suite of cobble-dwelling organisms was more cryptic than the behaviour of urchins with scaleworms. This study indicates that interactions with the suite of small organisms living amongst cobbles can affect survival, growth and behaviour of small juvenile sea urchins, and that larger juvenile sea urchins can be a source of mortality for smaller conspecifics.
机译：许多海洋底栖无脊椎动物的近来定居者是神秘的，这使它们暴露于与成年动物不同的一组动物中，有可能导致相互作用，从而导致死亡和/或减少生长。先前的野外实验表明，小型绿海顽童Strongylocentrotus droebachiensis就是这种情况，但尚未确定哪个类群负责死亡率和生长减少。进行了一项实验室研究，以检验小型大型底栖无脊椎动物（特别是Chitons，鳞茎虫和较大的幼虫）以及全套卵石栖生生物对小型（<3 mm ）少年海胆。与没有动物的情况相比，在有较大的少年海胆的情况下或在有完整的居住卵子的生物的情况下，小型少年海胆存活的可能性较低。小型海胆在与Chitons和Scaleworms一起生存并生长得最好。带有全套鹅卵生物的小海胆的行为比带有鳞虫的海胆的行为更隐秘。这项研究表明，与生活在鹅卵石中的一组小型生物的相互作用会影响小型海胆的存活，生长和行为，而大型海胆可能成为小物种的死亡来源。

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