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首页> 外文期刊>Harmful Algae >A fish kill associated with a bloom of Amphidinium carterae in a coastal lagoon in Sydney, Australia
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A fish kill associated with a bloom of Amphidinium carterae in a coastal lagoon in Sydney, Australia

机译：在澳大利亚悉尼的一个沿海泻湖中，与杀灭角叉菜相关的鱼类死亡

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摘要

We report on a dense bloom (similar to 1.80 x 10(5) cells mL(-1)) of the marine dinoflagellate species Amphidinium carterae (Genotype 2) in a shallow, small intermittently open coastal lagoon in south eastern Australia. This bloom co-occurred with the deaths of >300 individuals of three different species of fish. The opening of the lagoon to the ocean, as well as localized high nutrient levels, preceded the observations of very high cell numbers. A. carterae is usually benthic and sediment-dwelling, but temporarily became abundant throughout the water column in this shallow (<2 m) sandy habitat. Histopathological results showed that the Anguilla reinhardtii individuals examined had damage to epithelial and gill epithelial cells. An analysis of the bloom water indicated the presence of a compound with a retention time and UV spectra similar to Luteophanol A, a compound known from a strain of Amphidinium. Assays with a fish gill cell line were conducted using a purified compound from cells concentrated from the bloom, and was found to cause a loss of 87% in cell viability in 6 h. The fish deaths were likely due to the low dissolved oxygen levels in the water and/or the presence of Luteophanol A-like compounds released during the bloom. (C) 2015 Elsevier B.V. All rights reserved.
机译：我们报告了在澳大利亚东南部一个浅，小而间歇性开放的沿海泻湖中，海洋鞭毛鞭毛种类角叉菜（基因型2）的密集开花（类似于1.80 x 10（5）个细胞mL（-1））。这次绽放同时发生，导致三种不同鱼类的300多人死亡。在观察到非常高的细胞数量之前，泻湖向海洋开放，以及局部的高营养水平。角果曲霉通常是底栖和沉积物，但在这个浅（<2 m）的沙质生境中整个水柱中暂时变得丰富。组织病理学结果表明，所检查的安圭拉人对上皮和g上皮细胞有损害。对水华进行的分析表明，该化合物的存在时间和紫外光谱与木犀醇A相似，后者是一种从两性菌株得到的化合物。鱼from细胞系的测定是使用从花朵中浓缩的细胞中纯化的化合物进行的，发现在6小时内会导致细胞活力损失87％。鱼的死亡很可能是由于水中的溶解氧水平低和/或在开花期间释放了木犀醇A类化合物。 （C）2015 Elsevier B.V.保留所有权利。

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  • 来源
    《Harmful Algae》 |2015年第11期|19-28|共10页
  • 作者

    Murray Shauna A.; Kohli Gurjeet S.; Farrell Hazel; Spiers Zoe B.; Place Allen R.; Dorantes-Aranda Juan Jose; Ruszczyk Jason;

  • 作者单位

    Univ Technol Sydney, Plant Funct Biol & Climate Change Cluster, Sydney, NSW 2007, Australia|Sydney Inst Marine Sci, Mosman, NSW, Australia;

    Univ Technol Sydney, Plant Funct Biol & Climate Change Cluster, Sydney, NSW 2007, Australia|Sydney Inst Marine Sci, Mosman, NSW, Australia;

    Univ Technol Sydney, Plant Funct Biol & Climate Change Cluster, Sydney, NSW 2007, Australia|Sydney Inst Marine Sci, Mosman, NSW, Australia;

    Elizabeth Macarthur Agr Inst, NSW Dept Primary Ind, Menangle, NSW, Australia;

    Univ Maryland, Ctr Environm Sci, Inst Marine & Environm Technol, Baltimore, MD 21201 USA;

    Univ Tasmania, Inst Marine & Antarct Studies, Hobart, Tas, Australia;

    Warringah Council, Nat Environm Unit, Dee Why, NSW, Australia;

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  • 正文语种 eng
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  • 关键词

    Amphidinium carterae; Harmful algal bloom; Amphidinol; Fish kill; Lagoon; Luteophanol;

    机译：角闪石;有害藻华;闪石;杀鱼;泻湖;木犀醇;

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