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首页> 外文期刊>ICES Journal of Marine Science >Fish growth, reproduction, and tissue production on artificial reefs relative to natural reefs
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Fish growth, reproduction, and tissue production on artificial reefs relative to natural reefs

机译：相对于天然珊瑚礁，鱼类在人工鱼礁上的生长，繁殖和组织生产

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The extent to which artificial reefs may be useful for mitigation of environmental impacts, fisheries management, and conservation depends in part upon how well the organisms that live on them fare. We tested whether fish living on artificial reefs were in similar condition (weight-at-length), grew, foraged, reproduced, and produced tissue at rates similar to those on natural reefs. We studied five artificial-natural reef pairs spread over ＞200 km in the Southern California Bight. Underwater visual transects were used to quantify density and size structure of four target species (Paralabrax clathratus, Paralabrax nebulifer, Semicossyphus pulcher, and Embiotoca jacksoni), which were also collected to measure foraging success, condition, growth, reproductive output, and tissue production. Generally, fish living on artificial reefs fared as well or better than those on natural reefs, with some exceptions. Semicossyphus pulcher fared better on artificial reefs, having higher foraging success, fecundity, densities, and tissue production. Embiotoca jacksoni grew faster on natural reefs, and P. nebulifer was in slightly better condition on natural reefs. Total fish tissue production tended to be higher on artificial reefs than on natural reefs, though this pattern was not evident on all reef pairs. Tissue production was positively correlated with the abundance of large boulders, which was higher on artificial reefs than natural reefs. The similar or greater production offish tissue per cubic metre on artificial reefs relative to natural reefs indicates that these artificial habitats are valuable in producing fish biomass. Fish living on artificial reefs fared as well as those living on natural reefs, indicating that well-designed artificial reefs can be useful tools for mitigation, conservation, and fisheries management.
机译：人工鱼礁在减轻环境影响，渔业管理和保护方面可能有用的程度在一定程度上取决于生活在其上的生物的生存状况。我们测试了生活在人工鱼礁上的鱼是否处于与自然鱼礁相似的状况（长重），生长，觅食，繁殖和生产组织的速率。我们研究了南加州海岸线上分布在200公里以上的五对人工-天然礁石。水下视觉样板用于量化四个目标物种（巴拉巴拉克斯笼，巴拉布拉克斯星云，Semicossyphus pulcher和Embiotoca jacksoni）的密度和大小结构，还可以收集它们以测量觅食的成功，状况，生长，繁殖产量和组织产量。通常，除了某些例外，生活在人工礁上的鱼类的状况要好于或优于天然礁。 Semicossyphus pulcher在人工鱼礁上表现更好，觅食成功率，繁殖力，密度和组织产量更高。在天然珊瑚礁上，千金花胚的生长速度更快，而在天然珊瑚礁上，P。nebulifer的状况略好。人工鱼礁的总鱼组织产量往往高于天然鱼礁，尽管这种模式在所有珊瑚礁对上都不明显。组织生产与大石块的丰度成正相关，在人造礁石上比天然礁石高。相对于天然礁石，每立方米的人工鱼礁组织产量相似或更高，这表明这些人工生境对于生产鱼类生物量具有重要价值。生活在人工礁上的鱼类以及生活在天然礁上的鱼类都表明，精心设计的人工礁可以成为缓解，保护和渔业管理的有用工具。

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