Abstract Surveys to monitor changes in population size and geographic range of endangered species, are a critical component of recovery plans. The smalltooth sawfish (Pristis pectinata) is classified as endangered in the US, although there is evidence that a lifeboat population exists in coastal Florida waters. Sawfish occupy shallow embayments and estuaries, and surveying these habitats is critical. Here we show that sawfish can be easily identified from side-scan sonar surveys of shallow waters (

中文翻译：

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使用侧扫声纳调查极度濒危的小齿锯鳐

摘要 监测濒危物种种群规模和地理范围变化的调查是恢复计划的重要组成部分。小齿锯鳐（Pristis pectinata）在美国被列为濒危物种，尽管有证据表明佛罗里达州沿海水域存在救生艇种群。锯鳐栖息于浅海湾和河口，调查这些栖息地至关重要。在这里，我们表明锯鳐可以通过浅水侧扫声纳调查轻松识别（