A review of the biology, ecology and potential use of the common ragworm Hediste diversicolor (O.F. Müller) (Annelida: Polychaeta)
A review of the biology, ecology and potential use of the common ragworm Hediste diversicolor (O.F. Müller) (Annelida: Polychaeta)
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DOI：
10.1023/a:1015681605656
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发表时间：
2002-02
期刊：
影响因子：
2.6
通讯作者：
P. Scaps
中科院分区：
文献类型：
--
作者：
P. Scaps
常见的杂色沙蚕生活在大西洋北温带的浅海和微咸水中。这种非动物区系物种在软沉积物中建造U或Y形洞穴。杂色毛虫雌雄异体，终生不动。由于手工采集个体和它们的维护的便利，本种代表了实验研究的良好的生物材料。因此，多毛目幼虫作为内分泌控制繁殖的模型，在多毛类的免疫防御研究中起着基础性的作用。生活史特征(寿命、产卵季节、摄食策略和生长)和种群动态(性别比、密度和生物量)因种群的地理位置而有很大差异。此外，不同地区和同一地区不同环境条件的个体在形态、生化和生理方面也存在种群间的差异，这可能与物种的扩散能力有限有关。由个人建造的洞穴增加了沉积物-水的界面。当它们对洞穴进行通风时，个体会在沉积物中垂直排列氧化带，并促进洞穴周围的微生物和小型动物的生长。此外，普通沙蚕是一种具有商业价值的物种，因为它在休闲捕鱼中用作诱饵，在水产养殖中用作食物。为了缓解对诱饵渔业最佳可持续产量的过度需求所造成的环境压力，人们提出了集约化水产养殖。普通沙虫也可作为河口生态系统污染的生物监测器。
The common ragwormHediste diversicolorinhabits the shallow marine and brackish waters in the North Temperate Zone of the Atlantic. This infaunal species builds U or Y-shaped burrows in the soft sediments.H. diversicoloris gonochoristic and remains atokous throughout its life. Due to the facility of harvesting of individuals by hand and their maintenance, this species represents a good biological material for experimental studies. In consequence, the common ragworm served as a model for endocrine control of reproduction in Polychaeta and played a fundamental role in the study of immune defence in Polychaeta.Life history characteristics (longevity, spawning season, feeding tactics and growth) and population dynamics (sex ratio, density and biomass) vary greatly according to geographical location of the populations. In addition, inter-population morphological, biochemical and physiological differences have been noticed in individuals from different areas and different environmental conditions in the same areas and could be related to the limited dispersal capacity of the species.H. diversicolorinteracts with its environment. The construction of burrows by individuals increases the sediment–water interface. When they ventilate their burrows, individuals verticalize oxic zones into the sediment and promote microbial and meiofaunal growth alongside their burrows. Moreover, the common ragworm is a species of commercial interest because of its use as bait in recreational fishing and as food in aquaculture. In order to alleviate environmental pressure caused by excessive demand over optimal sustainable yield of bait fisheries, intensive aquaculture has been proposed. The common ragworm could be also used as biomonitor of pollution in estuarine ecosystems.