Allelochemical inhibition of recruitment in a sedimentary assemblage
Allelochemical inhibition of recruitment in a sedimentary assemblage
复制标题
沉积组合中募集的化感化学抑制
DOI：
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发表时间：
1993
影响因子：
2.3
通讯作者：
D. Lincoln
中科院分区：
文献类型：
--
作者：
S. Woodin;R. Marinelli;D. Lincoln
化学信号影响许多生境中生物的补充。大多数描述的生物化学部分在海洋环境中引起特定的积极的反应，例如，捕食者的猎物或同种幼虫到合适的栖息地。然而，生物体也会释放有毒化学物质，可能会引起邻近成员的负面反应。在这里，我们测量的效果招聘释放这些化合物（卤代芳烃）到沉积物中。常见的，沉积物居住，terebellid polychaeteThelepus crispus含有溴化芳香族代谢物和污染周围的沉积物管与这些化合物。被污染的沉积物会被沙蚕（沙蚕科：多毛类）主动排斥。有趣的是，许多这些有毒的生物源化合物在水中的溶解度低，因此，在沉积环境中可能停留时间长。幼虫对受其污染的沉积物的负面反应是一种新颖、潜在常见且非常重要的机制，其中沉积物栖息生物释放卤代芳香化合物，从而对其群落施加补充过滤器。
Chemical signals affect recruitment of organisms in many habitats. Most of the described biogenic chemical moieties in marine environments elicit specific positive responses, for example, of predators to prey or of conspecific larvae to suitable habitats. However, organisms also release noxious chemicals that may elicit negative responses from neighboring members of the assemblage. Herein we measured the effect on recruitment of the release of such compounds (halogenated aromatics) into sediments. The common, sediment-dwelling, terebellid polychaeteThelepus crispus contains brominated aromatic metabolites and contaminates the sediments surrounding its tube with these compounds. Sediments so contaminated are actively rejected by recruitingNereis vexillosa (Nereidae: Polychaeta). Interestingly, many of these noxious biogenic compounds have low solubility in water and, therefore, potentially long residence times in sedimentary environments. The negative response of larvae to sediment contaminated with them is a novel, potentially common, and very important mechanism in which sediment-dwelling organisms release haloaromatic compounds and thus impose a recruitment filter on their community.