Integrated approaches for comprehensive cetacean research and conservation in the East China Sea
文献类型： 外文期刊
作者： Yang, Shaobo 1 ; Jin, Yan 1 ; Li, Shengfa 1 ; Liu, Zunlei 1 ;
作者机构： 1.Chinese Acad Fishery Sci, East China Sea Fisheries Res Inst, Shanghai 200090, Peoples R China
2.Shanghai Ocean Univ, Coll Marine Sci, Shanghai 201306, Peoples R China
3.Minist Agr & Rural Affairs, Key Lab East China Sea Fishery Resources Exploitat, Shanghai 200090, Peoples R China
关键词： Cetacean distribution; Local ecological knowledge; Visual surveys; eDNA metabarcoding; Diet composition
期刊名称：MARINE POLLUTION BULLETIN （ 影响因子：5.3； 五年影响因子：6.1 ）
ISSN： 0025-326X
年卷期： 2024 年 206 卷
页码：
收录情况： SCI
摘要： This study thoroughly examines three cetacean monitoring methods and assessing their advantages and limitations, establishing a foundational basis for comprehensive information on composition, distribution, and behavior. While real-time and non-invasive, visual surveys favor surface-active cetaceans and are weather- dependent. Local ecological knowledge supplements insights into group behavior. Environmental DNA (eDNA) analysis efficiently detects species like the narrow-ridged finless porpoise ( Neophocaena asiaeorientalis) ) and common bottlenose dolphin ( Tursiops truncatus), ), offering non-invasive, and spatially adept monitoring. Furthermore, eDNA provides prey species information, revealing the narrow-ridged finless porpoise's winter migration to deeper waters due to prey distribution. The study identifies prevalent prey species, like the Japanese Anchovy ( Engraulis japonicus) ) and Osbeck's grenadier anchovy ( Coilia mystus), ), offering insights into the porpoise's feeding ecology and adaptation to changing prey availability in winter. This study systematically compares diverse methodologies employed in cetacean surveys, thereby yielding a comprehensive understanding of cetacean distribution, behavior, and feeding ecology.
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