Many estuarine shorelines are influenced by urbanization. Extensive shoreline modification in Upper New York Harbor (UNYH) included port development, landfilling marshes, and armoring. Recent sedimentation in constructed shipping terminal embayments, abandonment of shoreline structure maintenance, subsequent recruitment of upland and intertidal vegetation, and restoration projects have naturalized some shorelines in this urban setting. We determined the species composition and relative abundance of fishes and crabs in shallow shoreline habitats in constructed embayments of UNYH with seine sampling to determine the potential for restoring similar isolated shallow water sites as functional habitats. Twenty-seven identified species of fishes and crabs, including seasonally transient and resident marsh species, were represented in samples dominated byMenidia menidia, but marsh resident and coastal ocean species were also periodically abundant. Differences in assemblage structure among the sampled embayments as measured by principal components analysis were weak despite some differences in the slope and colonization of vegetation along shorelines. The mere presence of shallow shorelines was sufficient to recruit numerous species. Assemblage differences relative to a nearby relatively unaltered estuary revealed a lack of southern, warm affiliated species reflecting a natural clinal gradient. Marsh resident species dominated in UNYH, but not as strongly as at the reference estuary. Together with a previously published evaluation of life cycle connectivity for several sentinel species, this study shows that even small, isolated projects seeking to restore shallow shorelines add value to the estuarine landscape and are worth pursuing.

中文翻译：

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海岸线基础设施退化和日益增加的沿海自然化容纳了高度城市化的纽约上港的幼鱼和螃蟹组合

许多河口海岸线都受到城市化的影响。上纽约港 (UNYH) 的大规模海岸线改造包括港口开发、垃圾填埋场和装甲。最近在已建成的航运码头港湾中的沉积、海岸线结构维护的废弃、随后的高地和潮间带植被的补充以及恢复项目已使该城市环境中的一些海岸线归化。我们通过围网取样确定了 UNYH 建造的海湾浅海岸线栖息地中鱼类和螃蟹的物种组成和相对丰度，以确定恢复类似孤立浅水地点作为功能栖息地的潜力。27 种已确定的鱼类和蟹类，包括季节性过渡和常驻沼泽物种，以 Menidia menidia 为主的样本中为代表，但沼泽居民和沿海海洋物种也有周期性丰富。尽管坡度和植被沿海岸线的定植存在一些差异，但通过主成分分析测量的采样海湾之间的组合结构差异很小。仅仅存在浅海岸线就足以招募许多物种。相对于附近相对未改变的河口的组合差异表明缺乏反映自然气候梯度的南部温暖附属物种。沼泽居民物种在 UNYH 中占主导地位，但没有参考河口那么强烈。连同之前发表的对几种哨兵物种生命周期连通性的评估，这项研究表明，即使是很小的，