1. Sawfishes are highly threatened globally, and current data on their conservation status in the Indian Ocean are limited. A baseline study conducted in 2011–2012 revealed that at least two species of sawfish were still present in Bangladeshi waters and highlighted several important steps that could be taken to prevent populations from further decline.
2. Regular visits to landing sites in the south‐eastern coastal region of Bangladesh were conducted to collect data on sawfish landings. A telephone reporting system was developed amongst shark traders and fishers, to facilitate immediate reporting of sawfish landings.
3. Between 15 October 2016 and 26 December 2017, landings of 25 sawfishes were documented, of which at least 17 were largetooth sawfish Pristis pristis. No evidence of narrow sawfish Anoxypristis cuspidata was observed, which may suggest that this species has become rare.
4. These data were collected 5 years after the baseline study was conducted and after several years of broader efforts to highlight the precarious status of sawfish populations globally. The findings illustrate that largetooth sawfish continue to be landed and that none of the management or community engagement activities previously recommended, in order to reduce catch rates, have been implemented.
5. This is an example of the research–practitioner divide, where published scientific research on a group of highly endangered elasmobranchs has not led to their protection. A strategy for communicating the findings of this study and the critical need for local conservation action for sawfishes to key national and local stakeholders is presented, alongside a suite of actions that can be feasibly implemented in the next 12 months.

中文翻译：

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发布，然后灭亡？五年过去了，孟加拉的锯鱼仍然处于危险之中

1. globally鱼在全球受到高度威胁，有关其在印度洋的保护状况的最新数据有限。2011-2012年进行的基线研究表明，孟加拉国水域中仍至少存在两种​​锯齿鱼，并着重指出了可采取的若干重要步骤以防止种群进一步减少。
2. 定期访问了孟加拉国东南沿海地区的登陆点，以收集有关锯鱼登陆的数据。在鲨鱼商人和渔民之间开发了一个电话报告系统，以方便立即报告saw鱼的上岸量。
3. 在2016年10月15日至2017年12月26日期间，有25条锯齿鱼类被记录在案，其中至少有17条锯齿大锯齿Pristis pristis。窄锯鳐的证据Anoxypristis红豆杉观察到，这可能表明这一品种成为罕见。
4. 这些数据是在进行基线研究后5年以及经过数年的广泛努力以收集全球锯鱼种群的不稳定状况后收集的。调查结果表明，大齿锯鱼仍在继续着陆，以前没有建议采取任何旨在降低捕获率的管理或社区参与活动。
5. 这是研究者与从业者之间分歧的一个例子，在那儿，已发表的关于一组高度濒危的弹性分支的科学研究并未对其进行保护。与主要的国家和地方利益相关者一起，提出了一项传达本研究结果以及对锯鱼的地方保护行动的迫切需求的战略，以及一系列可以在未来12个月内切实可行的行动。