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首页> 外文期刊>Marine biology >A synthesis of European seahorse taxonomy, population structure, and habitat use as a basis for assessment, monitoring and conservation
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A synthesis of European seahorse taxonomy, population structure, and habitat use as a basis for assessment, monitoring and conservation

机译：欧洲海马分类，人口结构和栖息地使用的综合资料，作为评估，监测和养护的基础

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摘要

Accurate taxonomy, population demography, and habitat descriptors inform species threat assessments and the design of effective conservation measures. Here we combine published studies with new genetic, morphological and habitat data that were collected from seahorse populations located along the European and North African coastlines to help inform management decisions for European seahorses. This study confirms the presence of only two native seahorse species (Hippocampus guttulatus and H. hippocampus) across Europe, with sporadic occurrence of non-native seahorse species in European waters. For the two native species, our findings demonstrate that highly variable morphological characteristics, such as size and presence or number of cirri, are unreliable for distinguishing species. Both species exhibit sex dimorphism with females being significantly larger. Across its range, H. guttulatus were larger and found at higher densities in cooler waters, and individuals in the Black Sea were significantly smaller than in other populations. H. hippocampus were significantly larger in Senegal. Hippocampus guttulatus tends to have higher density populations than H. hippocampus when they occur sympatrically. Although these species are often associated with seagrass beds, data show both species inhabit a wide variety of shallow habitats and use a mixture of holdfasts. We suggest an international mosaic of protected areas focused on multiple habitat types as the first step to successful assessment, monitoring and conservation management of these Data Deficient species.
机译：准确的分类学，人口人口统计学和栖息地描述符为物种威胁评估和有效保护措施的设计提供了依据。在这里，我们将已发表的研究与从位于欧洲和北非海岸线的海马种群中收集的新的遗传，形态和栖息地数据相结合，以帮助为欧洲海马的管理决策提供依据。这项研究证实了整个欧洲仅存在两种本土海马物种（海马guttulatus和海马），在欧洲水域中零星出现了非本土海马物种。对于这两个本地物种，我们的发现表明，高度可变的形态特征，如卷毛的大小，存在或数量，对于区分物种是不可靠的。两种物种都表现出性别二态性，雌性则明显更大。在整个范围内，古特氏梭菌较大，在较冷的水中密度较高，黑海中的个体明显小于其他种群。塞内加尔海马H.海马明显更大。当海马guttulatus同胞发生时，它们的密度往往高于海马H.海马。尽管这些物种通常与海草床有关，但数据显示这两个物种都居住在各种各样的浅层生境中，并使用多种固着物。我们建议在国际上以多种栖息地类型为重点的保护区，作为成功评估，监测和保护这些数据不足物种的第一步。

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  • 来源
    《Marine biology》 |2018年第1期|19.1-19.19|共19页
  • 作者

    Woodall Lucy C.; Otero-Ferrer Francisco; Correia Miguel; Curtis Janelle M. R.; Garrick-Maidment Neil; Shaw Paul W.; Koldewey Heather J.;

  • 作者单位

    Univ Oxford, Dept Zool, Oxford, England;

    Univ Las Palmas Gran Canaria, IU ECOAQUA, Grp Biodiversidad & Conservac, Crta Taliarte S-N, Telde 35214, Spain;

    Zool Soc London, Project Seahorse, Regents Pk, London, England;

    Fisheries & Oceans Canada, Pacific Biol Stn, 3190 Hammond Bay Rd, Nanaimo, BC, Canada;

    Seahorse Trust, 36 Greatwood Terrace, Topsham, Devon, England;

    Aberystwyth Univ, Inst Biol Environm & Rural Sci IBERS, Aberystwyth, Dyfed, Wales;

    Zool Soc London, Project Seahorse, Regents Pk, London, England;

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