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首页> 外文期刊>Marine ecology >Life after death: shallow-water Mediterranean invertebrate communities associated with mammal bones
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Life after death: shallow-water Mediterranean invertebrate communities associated with mammal bones

机译：死后的生命：与哺乳动物骨骼相关的地中海浅水无脊椎动物群落

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摘要

Invertebrate and microbial marine communities associated with mammal bones are interesting and poorly understood habitats, mainly known from studies on deep-water whale remains. In order to characterize these communities in the shallow-water Mediterranean, we present here the results of a pioneering experiment using mammal bones. Minke whale, pig and cow bones were experimentally deployed on three different background communities: rocky substrate, soft-bottom and a Posidoniaoceanica meadow. Bones were deployed for a year at about 20m depth and collected every 3months, and the invertebrate fauna colonizing the bones was identified to the lowest possible taxonomic level. As expected, mammal bones showed remarkable differences when compared with background communities. Within bones, four different clusters could be identified, primarily on the basis of the polychaete fauna, the most abundant and diverse group in the survey. Clusters A1–A3 corresponded to high to moderately altered successional stages composed by a fauna closer to that of anthropogenically enriched shallow-water environments. These clusters were characterized by the occurrence of the opportunist polychaetes Ophryotrochapuerilis, Neanthescaudata (Cluster A1), Protodorvilleakefersteini (Cluster A2) and Ophryotrochaalborana (Cluster A3). Cluster B was characterized by the presence of the polychaete Oxydromus pallidus together with typical invertebrate background fauna, which suggests that this community, after a year of deployment, was closer to that found in natural conditions. As opposed to similar shallow-water studies in other geographic areas, no occurrence of the polychaete Osedax (commonly known as bone-eating worms) was reported from our experiments. Apart from the study on the invertebrate communities, insights about the population dynamics of three of the most abundant species (O.puerilis, O.alborana, N.caudata) are given as well as remarks on a hypothetical trophic network based on fecal pellet analysis.
机译：与哺乳动物骨骼相关的无脊椎动物和微生物海洋群落是有趣的且知之甚少的栖息地，主要是从对深水鲸鱼残骸的研究中得知的。为了表征地中海浅水区的这些群落，我们在这里介绍使用哺乳动物骨骼进行的开创性实验的结果。小须鲸，猪和牛的骨头被实验性地部署在三个不同的背景群落上：岩石基质，软底和波西多尼亚海洋草甸。在大约20m的深度处部署了一年的骨骼，并每3个月收集一次，并且将定居在骨骼上的无脊椎动物区系确定为最低的分类标准。不出所料，与背景群落相比，哺乳动物的骨骼表现出显着差异。在骨骼中，可以识别出四个不同的类群，主要是基于多毛类动物群，它是调查中最丰富，种类最多的类群。丛集A1-A3对应于由接近人为丰富的浅水环境的动物组成的高到中度变化的演替阶段。这些集群的特征是机会主义者多毛chaOphryotrochapuerilis，Neanthescaudata（集群A1），Protodorvilleakefersteini（集群A2）和Ophryotrochaalborana（集群A3）的出现。集群B的特征是存在多壳Ox（Phychaede palyus pallidus）以及典型的无脊椎动物背景动物，这表明该社区经过一年的部署，更接近于自然条件下的社区。与在其他地理区域进行的类似浅水研究相反，从我们的实验中没有发现多毛O（Osedax）（俗称食骨虫）的发生。除了对无脊椎动物群落的研究外，还对三种最丰富的物种（O.puerilis，O.alborana，N.caudata）的种群动态提供了见解，并在基于粪便颗粒分析的假想营养网络上作了说明。 。

著录项

  • 来源
    《Marine ecology》 |2016年第1期|164-178|共15页
  • 作者

    Taboada Sergi; Bas Maria; Leiva Carlos; Garriga Mariona; Sardá Rafael; Avila Conxita;

  • 作者单位

    University of Barcelona Department of Animal Biology Barcelona Spain;

    University of Barcelona Biodiversity Research Institute (IrBIO) Barcelona Spain;

    University of Barcelona Department of Animal Biology Barcelona Spain;

    University of Barcelona Department of Animal Biology Barcelona Spain;

    University of Barcelona Department of Animal Biology Barcelona Spain;

    Consejo Superior de Investigaciones Científicas Centre d'Estudis Avançats de Blanes Blanes Spain;

    University of Barcelona Department of Animal Biology Barcelona Spain;

    University of Barcelona Biodiversity Research Institute (IrBIO) Barcelona Spain;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Bacterial mats; fecal pellets; Ophryotrocha; opportunists; population dynamics; successional stages;

    机译：细菌垫;粪便颗粒;卵菌;机会主义者;种群动态;继发阶段;

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