Bottom-up processes drive reproductive success of Japanese anchovy in an oligotrophic sea: A case study in the central Seto Inland Sea, Japan

Michio Yoneda,Tatsunori Fujita,Masayuki Yamamoto,Kazuaki Tadokoro,Yuji Okazaki,Masahiro Nakamura,Masanori Takahashi,Naoaki Kono,Tadashi Matsubara,Katsuyuki Abo,Guo Xinyu,Naoki Yoshie

Progress in Oceanography（2022）

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摘要

•Community structure of copepod species changed over the 19-year study period.•Biomass of cool-water copepod species markedly decreased in the last decade.•Elevated temperature and declining chlorophyll a levels were recently observed.•Condition factor of females and egg size of anchovy decreased over the period.•Maternal prey availability of anchovy significantly affected offspring viability.

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关键词

Copepods,Elevated temperature,Prey selection,Maternal effect,Recruitment dynamics,Seto Inland Sea, Japan

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