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首页> 外文期刊>The Open Fish Science Journal >Benthic Habitat Modification through Excavation by Red Grouper, Epinephelus morio, in the Northeastern Gulf of Mexico
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Benthic Habitat Modification through Excavation by Red Grouper, Epinephelus morio, in the Northeastern Gulf of Mexico

机译：通过在墨西哥东北海湾的红色石斑鱼（Epinephelus morio）开挖进行的底栖生境改造

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Red grouper (Epinephelus morio) is an economically important species in the reef fish community of the southeastern United States, and especially the Gulf of Mexico. It is relatively common in karst regions of the Gulf and is associated with low-relief rocky features devoid of overlying sediments. Working both inshore in Florida Bay, Florida (U.S.A.), and offshore in the Gulf of Mexico shelf-edge fishery reserves, Madison Swanson and Steamboat Lumps, we characterized red-grouper habitat and the associated faunal assemblages and demonstrated through a series of experiments that red grouper expose rocky habitat by excavating with their mouths and fanning with their fins to clear away surficial sediment, thereby providing habitat for themselves as well as other reef-dwelling organisms. They also maintain this habitat by periodically clearing away sediment and debris. Such maintenance provides a clean rocky substrate for the attachment of sessile invertebrates, thereby modifying habitat features to provide refuge for many other species of fish and motile invertebrates. We demonstrated increased biodiversity and abundance associated with habitat structured by red grouper, and we speculate here as to its fishery importance as habitat for other economically important species such as spiny lobster (Panulirus argus) and vermilion snapper (Rhomboplites aurorubens).
机译：红色石斑鱼（Epinephelus morio）是美国东南部，尤其是墨西哥湾的礁鱼群落中一种重要的经济物种。它在海湾的喀斯特地区相对普遍，并且与没有上覆沉积物的低浮雕岩石特征有关。我们在美国佛罗里达州佛罗里达湾的近海和墨西哥湾沿岸渔业保护区麦迪逊·斯旺森和汽船肿块的近海中工作，我们对红石斑鱼的栖息地和相关的动物群落进行了表征，并通过一系列实验进行了证明，红石斑鱼通过用嘴挖出并用鳍成扇形散开表面的沉积物来暴露岩石栖息地，从而为自己以及其他居住在礁石中的生物提供栖息地。他们还通过定期清除沉积物和碎屑来维持该栖息地。这种维护为附着无脊椎动物提供了清洁的岩石基质，从而改变了栖息地特征，为许多其他种类的鱼类和活动无脊椎动物提供了庇护所。我们证明了与红色石斑鱼构成的栖息地相关的生物多样性和丰富度增加，并且在这里我们推测其渔业作为其他经济上重要物种的栖息地，例如多刺龙虾（Panulirus argus）和朱红色鲷鱼（Rhomboplites aurorubens）。

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