• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Caldasia >DINOFLAGELADOS POTENCIALMENTE TóXICOS ASOCIADOS A MATERIAL ORGáNICO FLOTANTE (DRIFT) EN SAN ANDRéS ISLA, RESERVA INTERNACIONAL DE LA BIOSFERA - SEAFLOWER
【24h】

DINOFLAGELADOS POTENCIALMENTE TóXICOS ASOCIADOS A MATERIAL ORGáNICO FLOTANTE (DRIFT) EN SAN ANDRéS ISLA, RESERVA INTERNACIONAL DE LA BIOSFERA - SEAFLOWER

机译：国际浮游动物保护区圣安德烈斯岛的浮游有机物（DRIFT）相关的潜在毒性食蟹藻

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

To assess the composition and abundance of potentially toxic dinoflagellates associated to drift on San Andres island, we selected seven sampling sites along the northern and eastern side of the island. During the wind season, we collected drift samples, identified the main substrates to species, and submerged them in 1:1 filtered seawater and Transeau solution. After shaking to remove the dinoflagellates, we sieved through an 80 μm screen and analyzed the detached dinoflagellates under an optical microscope. We found five substrates, two seagrass species and three macroalgae. Associated to these substrates, we identified twelve dinoflagellates species, ten of which are reported as toxic and are known to produce diarrhea, paralysis and ciguatera, syndromes reported in San Andrés and other Caribbean places where their frequency is apparently increasing. The dinoflagellate abundance presented strong variation with maximum average values (±SD) of 15354±15749 cel. /g of substrate dry weight. Five of the dinoflagellates associated to drift are new records for the island. We did not found significant differences in diversity of benthic dinoflagellates between drift and seagrass and macroalgae beds; however, the abundance was much higher in drift. The results showed that drift is a very important substrate for potentially toxic dinoflagellates and, considering its buoyant nature, it may represent one of the main dispersion vectors for these species on the island. To mitigate the effect of intoxication events on public health, fisheries and tourism, it is necessary to design a floating organic material management plan, improve the understanding of drift composition and its temporal dynamics, as well as to monitor associated toxins and pursue collection and treatment mechanisms of the floating biomass.
机译：为了评估与圣安德列斯岛漂流有关的潜在有毒鞭毛藻的成分和含量，我们在该岛的北部和东部选择了七个采样点。在风季，我们收集了漂流样本，确定了物种的主要底物，然后将其浸没在1：1过滤的海水和Transeau溶液中。摇晃除去藻鞭毛后，我们通过80μm筛网过筛，并在光学显微镜下分析了脱落的鞭毛。我们发现了五个底物，两个海草种类和三个大型藻类。与这些底物相关联，我们鉴定出十二种鞭毛藻，其中十种被认为具有毒性，已知会产生腹泻，麻痹和雪茄，在圣安德烈斯和其他加勒比海地区报告的综合症的频率明显增加。鞭毛藻的丰度变化很大，最大平均值（±SD）为15354±15749 cel。 / g底物干重。与漂流有关的恐龙鞭毛中有五个是该岛的新记录。我们没有发现漂流与海草和大型藻类床之间底栖鞭毛藻多样性的显着差异。但是，漂移的丰度要高得多。结果表明，漂移是潜在有毒的鞭毛藻的非常重要的底物，考虑到浮游性，它可能是岛上这些物种的主要扩散媒介之一。为了减轻中毒事件对公共卫生，渔业和旅游业的影响，有必要设计一个浮动的有机物质管理计划，增进对漂移成分及其时间动态的了解，并监测相关毒素并进行收集和治疗。漂浮生物质的机制。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号