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首页> 外文期刊>Marine Environmental Research >Effects of organic enrichment on nematode assemblages in a microcosm experiment
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Effects of organic enrichment on nematode assemblages in a microcosm experiment

机译：微观实验中有机富集对线虫组合的影响

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摘要

Marine nematodes from subtidal tropical sediments of Cienfuegos Bay were subjected to organic enrichment in a microcosm experiment for 32 days. Nematode abundance and diversity decreased, and the taxonomic and trophic structure was altered. The results suggested that the nematodes were not food limited in the microcosms or in their natural environment. Chemical stressors such as ammonia and hydrogen sulfide derived from reduced conditions in sediments may be important factors affecting the assemblages. Hypoxic conditions occurred in all experimental units, as well as in the field, suggesting a nematode assemblage adapted to naturally enriched sediments. However, tolerant species showed a grade of sensitivity to reduced conditions. In agreement with the model by Pearson and Rosenberg (1978), we predict that further organic enrichment in sediments from Cienfuegos Bay may cause a phase shift into a strongly depleted benthic fauna and reduced conditions in water and sediments.
机译：来自Cienfuegos湾潮下热带沉积物的海洋线虫在缩微实验中进行了32天的有机富集。线虫的丰度和多样性降低，并且分类学和营养结构发生了变化。结果表明，线虫在微观世界或自然环境中不受食物的限制。来自沉积物条件降低的化学应激源（例如氨和硫化氢）可能是影响集合体的重要因素。缺氧条件发生在所有实验单位以及田野中，表明线虫组合适合自然富集的沉积物。但是，耐受物种对降低的条件表现出一定程度的敏感性。与Pearson和Rosenberg（1978）的模型一致，我们预测Cienfuegos湾沉积物中有机物的进一步富集可能会导致相移成强烈耗尽的底栖动物，并减少水和沉积物的状况。

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  • 来源
    《Marine Environmental Research》 |2010年第5期|p.374-382|共9页
  • 作者

    Maickel Armenteros; Jose Andres Perez-Garda; Alexei Ruiz-Abierno; Lisbet Diaz-Asencio; Yusmila Helguera; Magda Vincx; Wilfrida Decraemer;

  • 作者单位

    Centra de Investigationes Marinas, Universidad de La Habana, 16 # 114, CP 11300, Playa, Habana, Cuba,Marine Biology Section, Ghent University, Krijgslaan 281 S8. B9000, Ghent, Belgium;

    rnCentra de Investigationes Marinas, Universidad de La Habana, 16 # 114, CP 11300, Playa, Habana, Cuba;

    Centra de Investigationes Marinas, Universidad de La Habana, 16 # 114, CP 11300, Playa, Habana, Cuba;

    Centro de Estudios Ambientales de Cienfuegos, Ministerio de Ciencia, Tecnologta y Medio Ambiente, Carretera a Castillo dejagua km 1/2 CP 59350, Cienfuegos, Cuba;

    Centro de Estudios Ambientales de Cienfuegos, Ministerio de Ciencia, Tecnologta y Medio Ambiente, Carretera a Castillo dejagua km 1/2 CP 59350, Cienfuegos, Cuba;

    Marine Biology Section, Ghent University, Krijgslaan 281 S8. B9000, Ghent, Belgium;

    Royal Belgian Institute of Natural Sciences, Vautierstraat 29, B1000, Brussels, Belgium,Nematology Section, Ghent University, Ledeganckstraat 35, B9000, Ghent, Belgium;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    nematodes; organic enrichment; microcosm; hypoxia; tropical; community composition; effects-community; Caribbean Sea;

    机译：线虫有机浓缩缩影缺氧热带;社区组成;效果社区加勒比海;

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