The value of salt marsh edge vs interior as a habitat for fish and decapod crustaceans in a Louisiana tidal marsh
The value of salt marsh edge vs interior as a habitat for fish and decapod crustaceans in a Louisiana tidal marsh
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路易斯安那州潮汐沼泽中盐沼边缘与内部作为鱼类和十足甲壳类动物栖息地的价值
DOI：
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发表时间：
1994
期刊：
影响因子：
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通讯作者：
R. Turner
中科院分区：
文献类型：
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作者：
G. W. Peterson;R. Turner
不同长度的水槽网和3米长的围网被用来在路易斯安那州被洪水淹没的盐沼和邻近的潮汐溪中对鱼类和大型甲壳类动物进行取样。该实验允许对小溪边缘和内部的淹没沼泽进行特定物种的比较。1989年1月至11月在水槽网收集的37,667种生物中，89%为十足类（9种），11%为鱼类（29种）。另外，从7月至11月采集的同时围网样本中收集了18539种生物（75%是十足类动物，25%是鱼类）。不同水槽长度和退潮围网与涨潮围网的渔获量比较揭示了湿地生境利用的不同模式。大多数生物的密度在水边3米内最高，但大量的沼泽居民鱼类使用内部沼泽。边缘沼泽似乎既被暂住物种利用，也被留居物种利用；然而，内陆沼泽主要被沼泽居民物种（Cyprinodontiformes和palaemonetes sp.）利用，它们是成年瞬变物种的极好食物来源。沼泽利用分为四个分区，分别用于临时居民、居民和稀有物种。
Flume nets of various lengths and a 3-m seine were used to sample the fishes and macrocrustaceans using a flooded Louisiana salt marsh and the adjacent tidal creek. The experiment allowed for species-specific comparisons of the flooded marsh at the creek edge versus the interior. Of the 37,667 organisms collected in flume nets from January through November 1989, 89% were decapods (nine species) and 11% were fish (29 species). An additional 18,539 organisms (75% decapods and 25% fish) were collected from concurrent seine samples taken from July through November. Comparison of catches among different flume lengths and low tide versus high tide seine collections revealed distinct patterns of marsh habitat utilization. Densities of most organisms were highest within 3 m of the water’s edge, but significant numbers of marsh-resident fish species used the interior marshes. The edge marshes appeared to be used by both transient and resident species; however, the interior marshes were used primarily by marsh-resident species (Cyprinodontiformes andPalaemonetes sp.) that are excellent food sources for adult transient-species. Four zonations of marsh use are described for transients, residents, and rare species.