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首页> 外文期刊>Journal of Experimental Marine Biology and Ecology >A comparison of stereo-BRUV, diver operated and remote stereo-video transects for assessing reef fish assemblages
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A comparison of stereo-BRUV, diver operated and remote stereo-video transects for assessing reef fish assemblages

机译：立体声BRUV，潜水员操作的和远程立体视频样带的比较，以评估珊瑚鱼的组合

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摘要

Monitoring programs that aim to measure the diversity, abundance and biomass of fishes depend on accurate and reliable biological data to guide the development of robust management plans. It is important to implement an appropriate sampling technique that provides a comprehensive assessment, while reducing associated biases in the data collection process. We compared the sampling abilities of four different underwater stereo-video techniques; baited remote underwater stereo-video systems (BRUV), diver operated stereo-video (DOV), and two relatively new methodologies; slow towed stereo-video (STY) and remotely operated vehicle (ROV) fitted with a stereo-video. Comparisons were conducted in a temperate reef system along a single limestone ridge within Geographe Bay, Western Australia. More fish species and individuals were sampled by BRUVs, while transect based methods (DOV, STY, and ROV) were comparable. Combining BRUVs with a transect method resulted in a similar to 10% increase in observed diversity. BRUVs had a higher statistical power to detect change in comparison to the transect methods. This was due to the higher variability observed in transect methods that may sample greater habitat heterogeneity within a sample unit compared to BRUVs. Although differences did exist, data collected with the ROV was generally comparable to the other transect methods. We believe further research into ROV use is warranted as they provide a safer alternative to diver-based techniques and have the ability to extend into deeper-waters. We recommend that for fish diversity and abundance assessments a sampling strategy that combines BRUVs and a transect method should be adopted.
机译：旨在衡量鱼类多样性，丰度和生物量的监测计划依赖于准确而可靠的生物学数据来指导制定强有力的管理计划。重要的是要实施适当的采样技术以提供全面的评估，同时减少数据收集过程中的相关偏差。我们比较了四种不同的水下立体视频技术的采样能力。诱饵远程水下立体视频系统（BRUV），潜水员操作的立体视频（DOV）和两种相对较新的方法;慢速拖曳的立体声视频（STY）和装有立体声视频的遥控车（ROV）。在温带礁石系统中，沿着西澳大利亚的Geographe湾内的单个石灰岩山脊进行了比较。 BRUV对更多鱼类和个体进行了采样，而基于断面的方法（DOV，STY和ROV）具有可比性。将BRUV与断面方法结合使用，可观察到的多样性增加了近10％。与横断面方法相比，BRUV具有更高的统计能力来检测变化。这是由于在样带方法中观察到的更高的变异性，与BRUV相比，该变异性可能会在样本单位内对更大的栖息地异质性进行抽样。尽管确实存在差异，但使用ROV收集的数据通常可以与其他横断面方法相媲美。我们认为，有必要对ROV的使用进行进一步的研究，因为它们为基于潜水员的技术提供了更安全的替代方法，并且能够扩展到更深的水域。我们建议，对于鱼类的多样性和丰度评估，应采用结合BRUV和样带法的采样策略。

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  • 来源
    《Journal of Experimental Marine Biology and Ecology》 |2020年第3期|151273.1-151273.12|共12页
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  • 作者单位

    Curtin Univ Sch Mol & Life Sci Bentley WA 6102 Australia;

    Curtin Univ Sch Mol & Life Sci Bentley WA 6102 Australia|Dept Biodivers Conservat & Attract Biodivers & Co Marine Sci Program 17 Dick Perry Ave Kensington WA 6151 Australia;

    Govt Western Australia Western Australian Fisheries & Marine Res Labs Dept Primary Ind & Reg Dev POB 20 North Beach WA 6920 Australia;

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  • 正文语种 eng
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  • 关键词

    Stereo-DOV; Slow towed stereo-video; Stereo-ROV; Stereo-BRUVs; Power analysis; Cost effectiveness;

    机译：立体声DOV;拖慢的立体声视频;立体声ROV;立体BRUV;功率分析;成本效益;

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