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首页> 外文期刊>ICES Journal of Marine Science >The comparative effects of habitat complexity on faunal assemblages of northern temperate artificial and natural reefs
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The comparative effects of habitat complexity on faunal assemblages of northern temperate artificial and natural reefs

机译：生境复杂性对北部温带人工和天然礁石动物群的比较影响

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Several north temperate marine species were recorded on subtidal hard-substratum reef sites selected to produce a gradient of structural complexity. The study employed an established scuba-based census method, the belt transect. The three types of reef examined, with a measured gradient of increasing structural complexity, were natural rocky reef, artificial reef constructed of solid concrete blocks, and artificial reef made of concrete blocks with voids. Surveys were undertaken monthly over a calendar year using randomly placed fixed rope transects. For a number of conspicuous species offish and invertebrates, significant differences were found between the levels of habitat complexity and abundance. Overall abundance for many of the species examined was 2-3 times higher on the complex artificial habitats than on simple artificial or natural reef habitats. The enhanced habitat availability produced by the increased structural complexity delivered through specifically designed artificial reefs may have the potential to augment faunal abundance while promoting species diversity.
机译：在潮下硬质底礁地点记录了几种北温带海洋物种，这些地点被选择为产生结构复杂性的梯度。该研究采用了基于水肺的普查方法，即带状样带。所检查的三种类型的珊瑚礁具有逐渐增加的结构复杂性的梯度，分别是天然岩石礁石，由实心混凝土砌块构成的人造礁石和由具有空隙的混凝土砌块制成的人造礁石。在一个日历年中每月使用随机放置的固定绳索样条进行调查。对于许多明显的鱼类和无脊椎动物物种，栖息地复杂程度和丰富度之间存在显着差异。在复杂的人工生境中，许多受调查物种的总体丰度比在简单的人工或天然礁石生境中高2-3倍。通过专门设计的人工礁增加的结构复杂性所带来的栖息地可利用性的提高，可能具有增加动物种群数量的潜力，同时又促进了物种的多样性。

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