使用带饵成像声纳(BISON)量化近岸浅海生境中鱼类的密度、大小和探测范围

IF 2.1 3区 地球科学 Q2 LIMNOLOGY
Edward C. P. Sibley, Kevin M. Boswell, Benjamin M. Binder, Allison L. White, Aedan M. Mell, Beth E. Scott, Alethea S. Madgett, Travis S. Elsdon, Michael J. Marnane, Paul G. Fernandes
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引用次数: 0

摘要

世界各地都在使用带饵远程水下视频(BRUV)等方法来辅助光学仪器,以探测和量化海洋生物。光学仪器只能探测可见光范围内的目标,因此,BRUV 可能会低估光照受限生境中的鱼类,尤其是在可见光范围之外对诱饵有反应的鱼类。另外,与光线无关的仪器(如成像声纳)可以在任何可见度范围内探测鱼类并对其进行量化。本研究首次应用了带饵成像声纳(BISON),用于调查佛罗里达州南部一个浑浊河口的小型浅水人工栖息地周围的鱼类。为了确定饵料对鱼类探测的影响,BISON 试验与无饵料对照试验交替进行,并集成了高清摄像机,以确定能见度和物种组成。对于两种体型的鱼类,即体型较大(30 厘米)和体型较小(10-30 厘米)的鱼类,对最大密度(MaxD)和探测范围进行了量化。虽然 BISON 和无诱饵对照组量化的较大和较小鱼类的密度没有差异,但超过 55% 的较大鱼类是在最大能见度以外的范围被探测到的,BISON 上较大和较小鱼类的密度渐近线分别为 15-20 分钟和 5-10 分钟。总之,这项研究证明了 BISON 作为 BRUV 定量鱼类的补充和替代方法的潜力,尤其是在能见度有限的生境中。未来,BISONs 在其他生境中的应用将进一步证明其作为检测和统计水生生物群落的工具的价值。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Using a baited imaging sonar (BISON) to quantify the density, size, and detection range of fishes in a shallow, nearshore habitat

Using a baited imaging sonar (BISON) to quantify the density, size, and detection range of fishes in a shallow, nearshore habitat

Methods that supplement optical instruments with bait, such as baited remote underwater video (BRUV), are used worldwide to detect and quantify marine life. Optical instruments only detect targets within visible range, such that BRUVs may underestimate fishes in light-limited habitats, especially fishes that respond to the bait at ranges beyond visibility. Alternatively, light-independent instruments (e.g., imaging sonars) can detect and quantify fishes regardless of visibility. This study presents the first application of a baited imaging sonar (BISON), deployed to survey fishes around a small, shallow artificial habitat in a turbid embayment in southern Florida. To establish the influence of bait on fish detection, BISON trials were alternately conducted alongside deployments of an unbaited control, with a high-definition camera integrated to ascertain visibility and inform species composition. For fishes of two size classes, larger (> 30 cm) and smaller (10–30 cm), maximum density (MaxD) and range of detection were quantified. Although the densities of larger and smaller fishes quantified by the BISON and unbaited control did not differ, over 55% of larger fishes were detected at ranges beyond maximum visibility, with asymptotes in fish density on the BISON identified at 15–20 min and 5–10 min for larger and smaller fishes, respectively. Overall, this study demonstrates the potential of BISONs as both a complementary and alternative method to BRUVs for quantifying fishes, especially in habitats of limited visibility. Future applications of BISONs in other habitats will further demonstrate its value as a tool to detect and enumerate aquatic assemblages.

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来源期刊
CiteScore
4.80
自引率
3.70%
发文量
56
审稿时长
3 months
期刊介绍: Limnology and Oceanography: Methods (ISSN 1541-5856) is a companion to ASLO''s top-rated journal Limnology and Oceanography, and articles are held to the same high standards. In order to provide the most rapid publication consistent with high standards, Limnology and Oceanography: Methods appears in electronic format only, and the entire submission and review system is online. Articles are posted as soon as they are accepted and formatted for publication. Limnology and Oceanography: Methods will consider manuscripts whose primary focus is methodological, and that deal with problems in the aquatic sciences. Manuscripts may present new measurement equipment, techniques for analyzing observations or samples, methods for understanding and interpreting information, analyses of metadata to examine the effectiveness of approaches, invited and contributed reviews and syntheses, and techniques for communicating and teaching in the aquatic sciences.
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