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首页> 外文期刊>Estuarine Coastal and Shelf Science >Plankton community structure and connectivity in the Kimberley-Browse region of NW Australia
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Plankton community structure and connectivity in the Kimberley-Browse region of NW Australia

机译：澳大利亚西北部金伯利-浏览地区的浮游生物群落结构和连通性

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摘要

We describe the zooplankton and ichthyoplankton communities of coastal waters of the Kimberley coast (North West Australia), sampled in macrotidal Camden Sound during both the wet and dry seasons of 2011, and compare these to six other Kimberley embayments during the wet season of 2013. Zooplankton abundance in Camden Sound was 7038 ± 3913 SD ind. m~(-3) in the wet season and 1892 ± 708 SD ind. m~(-3) in the dry season, with copepods accounting for 85% by number. In all, 78 species of copepods were recorded, with the families Paracalanidae and Oithonidae dominant. In Camden Sound, 48 families of larval fish occurred, with ichthyoplankton more abundant in the wet season than the dry season (1.16 ± 0.2 ind. m~(-3) cf 0.76 ± 0.2 ind. m~(-3)). Larval gobiids (Subfamily Gobiinae) were most abundant, with other common families associated with either pelagic or soft-bottom habitats as adults. Multivariate analyses of both copepod and ichthyoplankton communities demonstrated strong seasonal contrasts, although an along-shelf gradient in copepod community composition was apparent along the embayments sampled in 2013. There was little spatial variation in plankton communities within Camden Sound as a result of the large tidal range (up to 11.7 m, with 2.5 m~(-1) velocities), although gradients in abundance and composition on cross-shelf transects occurred in the more northern embayments that had a lower tidal range, such as Napier Broome Bay. Copepod communities of the Kimberley-Browse region were placed in regional perspective by multivariate analyses of similar data collected in the eastern Indian Ocean at Scott Reef, in the Arafura Sea and on the southern North West (NW) shelf. The plankton communities of the NW shelf form a series of along-shore metacommunities linked by advection, with weaker cross-shelf connectivity. The presence of the larvae of mesopelagic fishes of the family Mycto-phidae in coastal waters confirms seasonal cross-shelf connectivity.
机译：我们描述了金伯利海岸（澳大利亚西北部）沿海水域的浮游动物和浮游鱼类群落，在2011年的湿润和干旱季节均在巨潮型Camden Sound中取样，并将它们与2013年雨季的其他六个金伯利浮标进行了比较。卡姆登湾的浮游动物丰度为7038±3913 SD ind。雨季m〜（-3）和1892±708 SD ind。旱季m〜（-3），co足类占85％。总共记录到了78种of足类，其中以cal足纲科和蛇腹科为优势。在卡姆登海峡，出现了48个幼体鱼科，其中湿季鱼的浮游鱼类比旱季丰富（1.16±0.2 ind。m〜（-3）cf 0.76±0.2 ind。m〜（-3））。幼虫戈壁虫（亚科虾亚目）数量最多，成年时与中上层或软底生境相关的其他常见家庭。对co足类和鱼鳞浮游生物群落的多变量分析显示出强烈的季节性对比，尽管沿2013年采样时co足类群落组成的沿架梯度明显。由于大潮汐，卡姆登湾内浮游生物的空间变化很小。范围（最大速度为11.7 m，速度为2.5 m〜（-1）），尽管跨潮带样带上的丰度和成分出现梯度，而潮汐范围较低的北部较北端则发生了这种变化，例如纳皮尔布鲁姆湾。通过对在印度洋东部斯科特礁，阿拉法拉海和西北西北（NW）陆架上收集的类似数据进行多变量分析，将金伯利-布鲁斯地区的region足类群落置于区域视野中。西北部大陆架的浮游生物群落形成了一系列通过平流联系在一起的近海元社区，但跨架连通性较弱。在沿海水域中，Mycto-phiidae科的中生鱼类的幼虫的存在证实了季节性的跨架连通性。

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  • 来源
    《Estuarine Coastal and Shelf Science》 |2015年第5期|156-167|共12页
  • 作者

    A.D. McKinnon; S. Duggan; D. Holliday; R. Brinkman;

  • 作者单位

    Australian Institute of Marine Science, P.M.B. No. 3, Townsville M.C. 4810, Queensland, Australia,School of Marine and Tropical Biology, James Cook University, Townsville 4810, Queensland, Australia;

    Australian Institute of Marine Science, P.M.B. No. 3, Townsville M.C. 4810, Queensland, Australia;

    Australian Institute of Marine Science, P.M.B. No. 3, Townsville M.C. 4810, Queensland, Australia,School of Environmental Science, Murdoch University, 90 South St, Murdoch 6150, Western Australia, Australia;

    Australian Institute of Marine Science, P.M.B. No. 3, Townsville M.C. 4810, Queensland, Australia;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    zooplankton; ichthyoplankton; community composition; macrotidal; connectivity; Kimberley;

    机译：浮游动物鱼鳞浮游生物社区组成;大潮连接性;金伯利;

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