南大西洋西南部出现有毒束毛藻大量繁殖现象。
Toxic Trichodesmium bloom occurrence in the southwestern South Atlantic Ocean.
作者信息
Sacilotto Detoni Amália Maria, Costa Luiza Dy Fonseca, Pacheco Lucas Abrão, Yunes João Sarkis
机构信息
Postgraduate Program in Biological Oceanography, Institute of Oceanography, Federal University of Rio Grande, Av. Italia, km 8, Rio Grande, RS, 96203-900, Brazil; Laboratory of Cyanobacteria and Phycotoxin, Institute of Oceanography, Federal University of Rio Grande, Av. Italia, km 8, Rio Grande, RS, 96203-900, Brazil.
Laboratory of Cyanobacteria and Phycotoxin, Institute of Oceanography, Federal University of Rio Grande, Av. Italia, km 8, Rio Grande, RS, 96203-900, Brazil; Postgraduate Program in Physical, Chemical and Geological Oceanography, Institute of Oceanography, Federal University of Rio Grande, Av. Italia, km 8, Rio Grande, RS, 96203-900, Brazil.
出版信息
Toxicon. 2016 Feb;110:51-5. doi: 10.1016/j.toxicon.2015.12.003. Epub 2015 Dec 13.
Harmful Trichodesmium blooms have been reported on the continental slope of the southwestern South Atlantic Ocean; we sampled six such blooms. The highest saxitoxin concentration was observed where the number of colonies was proportionally greater relative to the total density of trichomes. Trichodesmium blooms are harmful to shrimp larvae and may lead to plankton community mortality. This study is the first record of neurotoxic blooms in the open waters of the South Atlantic.
据报道，在西南大西洋大陆坡出现了有害的束毛藻大量繁殖现象；我们对其中六次此类繁殖事件进行了采样。在相对于丝状体总密度而言，群体数量比例更大的地方，观察到了最高的石房蛤毒素浓度。束毛藻大量繁殖对虾幼体有害，可能导致浮游生物群落死亡。本研究是南大西洋开阔水域神经毒性藻华的首次记录。
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