Characterizing Antarctic fish assemblages using eDNA obtained from marine sponge bycatch specimens
Characterizing Antarctic fish assemblages using eDNA obtained from marine sponge bycatch specimens
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使用从海绵副渔获物标本中获得的 eDNA 表征南极鱼类组合
DOI：
10.1007/s11160-023-09805-3
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发表时间：
2023
影响因子：
6.2
通讯作者：
Jeunen G
中科院分区：
文献类型：
--
作者：
Jeunen G
已经制定了国际保护目标，以减缓南大洋生态系统的恶化，多个监测项目评估了实现这些目标的进展情况。然而，通过目视观察进行持续监测的规模受到该地区偏远地区和后勤限制的挑战。鉴于南大洋的生态和经济重要性，必须探索更多的生物监测方法。最近，在南大洋渔业中经常被捕获和丢弃的海绵被证明可以自然积累环境DNA(EDNA)。在这里，我们将来自海绵副渔获物标本的鱼类EDNA信号与南极洲罗斯海内大陆架上9个地点(523.5-709米)和17个陆坡(887.5-1611.5米)的渔获量记录进行比较。我们共记录了20种鱼，其中12种被报告为捕获，18种被EDNA观察到，10种被两种方法检测到。虽然采样位置是数据集中观察到的变化的最大贡献者，但EDNA获得了显著更高的物种丰富度，并显示出与渔获量记录显著不同的物种组成。总体而言，相对于生物量，EDNA读数与鱼类丰度的相关性更强。不同方法之间的物种组成在区域尺度上相互关联，然而EDNA信号强度在物种水平上对渔获量的预测很低。我们的结果突出了在南大洋监测海绵EDNA的潜力，因为与渔获量记录相比，它检测到了更大比例的鱼类群落，从而增加了我们对这个研究不足的生态系统的了解，并最终有助于保护工作。
International conservation goals have been set to mitigate Southern Ocean ecosystem deterioration, with multiple monitoring programs evaluating progress towards those goals. The scale of continuous monitoring through visual observations, however, is challenged by the remoteness of the area and logistical constraints. Given the ecological and economic importance of the Southern Ocean, it is imperative that additional biological monitoring approaches are explored. Recently, marine sponges, which are frequently caught and discarded in Southern Ocean fisheries, have been shown to naturally accumulate environmental DNA (eDNA). Here, we compare fish eDNA signals from marine sponge bycatch specimens to fish catch records for nine locations on the continental shelf (523.5–709 m) and 17 from the continental slope (887.5–1611.5 m) within the Ross Sea, Antarctica. We recorded a total of 20 fishes, with 12 fishes reported as catch, 18 observed by eDNA, and ten detected by both methods. While sampling location was the largest contributor to the variation observed in the dataset, eDNA obtained significantly higher species richness and displayed a significantly different species composition compared to fish catch records. Overall, eDNA read count correlated more strongly with fish abundance over biomass. Species composition correlated on a regional scale between methods, however eDNA signal strength was a low predictor of catch numbers at the species level. Our results highlight the potential of sponge eDNA monitoring in the Southern Ocean by detecting a larger fraction of the fish community compared to catch recordings, thereby increasing our knowledge of this understudied ecosystem and, ultimately, aiding conservation efforts.
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影响因子：
2.4
作者：
Giulia Maiello;L. Talarico;P. Carpentieri;F. De Angelis;Simone Franceschini;Lynsey R. Harper;Erika F. Neave;O. Rickards;A. Sbrana;Peter Shum;Virginia Veltre;S. Mariani;T. Russo
通讯作者：
Giulia Maiello;L. Talarico;P. Carpentieri;F. De Angelis;Simone Franceschini;Lynsey R. Harper;Erika F. Neave;O. Rickards;A. Sbrana;Peter Shum;Virginia Veltre;S. Mariani;T. Russo
预测南极洲生活的未来。
影响因子：
16.8
作者：
G. Koerich;C. Fraser;Charles K. Lee;Fraser J. Morgan;J. Tonkin
通讯作者：
J. Tonkin
影响因子：
4.6
作者：
Kelly, Ryan P.;Shelton, Andrew Olaf;Gallego, Ramon
通讯作者：
Gallego, Ramon
开发有效的海洋 eDNA 监测：对食珊瑚海星（Acanthaster cf. Solaris）爆发前密度进行 eDNA 检测。
影响因子：
9.8
作者：
S. Uthicke;B. Robson;J. Doyle;M. Logan;M. Pratchett;M. Lamare
通讯作者：
M. Lamare
用于调查未公开的水生生物多样性的 eDNA
DOI：
--
发表时间：
2014
期刊：
影响因子：
--
作者：
Tsuji;S.;Yamanaka;H.;Minamoto;T.;FUKUMOTO Sou ; USHIMARU Atushi ; MINAMOTO Toshifumi;Masaki Miya et al.;Hitoshi Araki;Hiroki Mizumoto;荒木仁志;源利文;高原輝彦;荒木仁志;荒木仁志;荒木仁志;荒木仁志;荒木仁志;高原輝彦;荒木仁志;福本想・丑丸敦史・源利文;荒木仁志;Hitoshi Araki
通讯作者：
Hitoshi Araki