Salt marsh shoreline geomorphology influences the success of restored oyster reefs and use by associated fauna
Salt marsh shoreline geomorphology influences the success of restored oyster reefs and use by associated fauna
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盐沼海岸线地貌影响牡蛎礁恢复的成功和相关动物群的利用
DOI：
10.1111/rec.12992
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发表时间：
2019
影响因子：
3.2
通讯作者：
Fodrie, F. Joel
中科院分区：
文献类型：
--
作者：
Keller, Danielle A.;Gittman, Rachel K.;Brodeur, Michelle C.;Kenworthy, Matthew D.;Ridge, Justin T.;Yeager, Lauren A.;Rodriguez, Antonio B.;Fodrie, F. Joel
恢复越来越多地作为一种战略来实施，以减缓全球生物栖息地的下降，如作为盐沼泽和牡蛎礁。如果我们知道景观尺度上的场地特征如何影响这些基础物种的生态成功，恢复工作就可以得到改善。在这项研究中，我们确定了盐沼海岸线地貌（例如，可变的水动力能量，取，侵蚀率和坡度）影响恢复潮间带牡蛎礁的成功，以及动物群如何利用恢复的珊瑚礁和饲料沿着沼泽栖息地。我们在2012年5月沿着沿着三种沼泽海岸线地貌建造牡蛎礁：1）“小溪”（小河道，逐渐倾斜的海岸线），“斜坡”（大河道，逐渐倾斜的海岸线）和“悬崖”（大河道，陡峭倾斜的海岸线）。招募后，牡蛎苗密度是最大的斜坡礁，然而，2年后，最高的成年牡蛎密度被发现在溪礁。总游泳动物和蓝蟹的拖网捕捞率最高的小溪，而刺网渔获率最高的沿着陡崖海岸线。我们没有发现差异的捕食蜗牛在盐沼建礁和nonconstructed参考网站后面，但有更多的蜗牛消耗在小溪海岸线，这对应于其主要捕食者蓝蟹的分布。我们的结论是，牡蛎礁建设是最成功的牡蛎在小取，逐渐倾斜，小溪环境。然而，游泳动物丰度并不总是遵循与牡蛎密度相同的趋势，这可能表明人工礁可能提供类似的栖息地相关功能（猎物可用性和避难所）已经存在于沿着现有的盐沼边界。
Restoration is increasingly implemented as a strategy to mitigate global declines in biogenic habitats, such as salt marshes and oyster reefs. Restoration efforts could be improved if we knew how site characteristics at landscape scales affect the ecological success of these foundation species. In this study, we determined how salt marsh shoreline geomorphologies (e.g. with variable hydrodynamic energy, fetch, erosion rates, and slopes) affect the success of restored intertidal oyster reefs, as well as how fauna utilize restored reefs and forage along marsh habitats. We constructed oyster reefs along three marsh shoreline geomorphologies in May 2012: 1) “creek” (small‐fetch, gradual‐sloped shoreline), “ramp” (large‐fetch, gradual‐sloped shoreline), and “scarp” (large‐fetch, steep‐sloped shoreline). Following recruitment, oyster spat density was greatest on ramp reefs; however, 2 years later, the highest adult oyster densities were found on creek reefs. Total nekton and blue crab catch rates in trawl nets were highest in the creek, while piscivore catch rates in gill nets were highest along the scarp shoreline. We found no difference in predation on snails in the salt marsh behind constructed reef and nonconstructed reference sites, but there were more snails consumed in the creek shoreline, which corresponded with the distribution of their major predator—blue crabs. We conclude that oyster reef construction was most successful for oysters in small‐fetch, gradual‐sloped, creek environments. However, nekton abundance did not always follow the same trends as oyster density, which could suggest constructed reefs may offer similar habitat‐related functions (prey availability and refuge) already present along existing salt marsh borders.
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DOI：
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发表时间：
1987
期刊：
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影响因子：
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DOI：
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发表时间：
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期刊：
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作者：
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影响因子：
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作者：
Baillie, Christopher J.;Fear, John M.;Fodrie, F. Joel
通讯作者：
Fodrie, F. Joel