As coastal urbanization increases globally, the subsequent effects on marine animals, especially endangered species, inhabiting nearshore waters have become a research priority. The smalltooth sawfish Pristis pectinata, once abundant in US waters, now only persists in a few parts of its former range, including South Florida. Many areas utilized by smalltooth sawfish are estuarine systems or other shallow coastal habitats, making this species particularly vulnerable to threats associated with coastal development. To date, P. pectinata has been understudied in the waters in and around Biscayne Bay, Florida, a coastal waterway subjected to the urbanization of adjacent Miami-Dade County. Here, we summarize data from reported smalltooth sawfish en counters dating as far back as 1895 (N = 90) and detail opportune recordings (incidental catches, acoustic detections, and baited remote underwater videos) of sub-adults and adults (N = 14 individuals) in Biscayne Bay and the adjacent reef tract. These data demonstrate historical and increased contemporary use of the study area by this imperiled species, suggesting potential local and regional recovery. Most documented sawfish occurrences were near the urban center, indicating a need to understand the effects of coastal urbanization on sawfish and on the species' recovery potential. We suggest priorities for future research on P. pectinata in the study area that will assist in addressing regional management goals and contribute to understanding the ecology of smalltooth sawfish under environmental change.

中文翻译：

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锯子与城市：佛罗里达州迈阿密近海城市化沿海水域的小型锯鳐（Pristis pectinata）遭遇、恢复潜力和研究重点

随着全球沿海城市化进程的加快，对栖息在近岸水域的海洋动物，尤其是濒危物种的后续影响已成为研究的重点。小齿锯鳐 Pristis pectinata 曾经在美国水域盛产，现在仅在其原先分布范围的几个部分生存，包括南佛罗里达。小齿锯鳐利用的许多区域是河口系统或其他浅海沿海栖息地，使该物种特别容易受到与沿海开发相关的威胁。迄今为止，佛罗里达州比斯坎湾及其周边水域的 P. pectinata 尚未得到充分研究，比斯坎湾是一条受邻近迈阿密-戴德县城市化影响的沿海水道。在这里，我们总结了可追溯到 1895 年 (N = 90) 的报告的小齿锯鳐的数据和详细的适时记录（偶然捕获，比斯坎湾和邻近的珊瑚礁区域的亚成体和成体（N = 14 个人）的声学检测和诱饵远程水下视频）。这些数据表明，这种濒危物种在历史上和当代对研究区域的使用不断增加，表明潜在的当地和区域恢复。大多数记录在案的锯鳐发生在市中心附近，这表明需要了解沿海城市化对锯鳐和物种恢复潜力的影响。我们建议在研究区对 P. pectinata 进行未来研究的优先事项，这将有助于解决区域管理目标并有助于了解环境变化下小齿锯鳐的生态。和诱饵远程水下视频）的亚成体和成体（N = 14 个人）在比斯坎湾和邻近的珊瑚礁区。这些数据表明，这种濒危物种在历史上和当代对研究区域的使用不断增加，表明潜在的当地和区域恢复。大多数记录在案的锯鳐发生在市中心附近，这表明需要了解沿海城市化对锯鳐和物种恢复潜力的影响。我们建议在研究区对 P. pectinata 进行未来研究的优先事项，这将有助于解决区域管理目标并有助于了解环境变化下小齿锯鳐的生态。和诱饵远程水下视频）的亚成体和成体（N = 14 个人）在比斯坎湾和邻近的珊瑚礁区。这些数据表明，这种濒危物种在历史上和当代对研究区域的使用不断增加，表明潜在的当地和区域恢复。大多数记录在案的锯鳐发生在市中心附近，这表明需要了解沿海城市化对锯鳐和物种恢复潜力的影响。我们建议在研究区对 P. pectinata 进行未来研究的优先事项，这将有助于解决区域管理目标并有助于了解环境变化下小齿锯鳐的生态。表明潜在的地方和区域复苏。大多数记录在案的锯鳐发生在市中心附近，这表明需要了解沿海城市化对锯鳐和物种恢复潜力的影响。我们建议在研究区对 P. pectinata 进行未来研究的优先事项，这将有助于解决区域管理目标并有助于了解环境变化下小齿锯鳐的生态。表明潜在的地方和区域复苏。大多数记录在案的锯鳐发生在市中心附近，这表明需要了解沿海城市化对锯鳐和物种恢复潜力的影响。我们建议研究区未来对 P. pectinata 的研究优先事项，这将有助于解决区域管理目标，并有助于了解环境变化下小齿锯鳐的生态。