Spawning strategy of Japanese anchovy Engraulis japonicus in the coastal Yellow Sea: Choice and dynamics

• DOI: 10.1111/fog.12523
• Publication Date: 2020-12-02T22:38:20Z
• Authors: Wenchao Zhang; Haiqing Yu; Zhenjiang Ye; Yongjun Tian; Yang Liu; Jianchao Li; Qinwang Xing; Yiqian Jiang
• Keywords: Engraulis; Ichthyoplankton

Abstract Understanding the relationships between hydrodynamics and spawning activities of small pelagic fishes is crucial for understanding their recruitment dynamics fisheries management. Here, we clarify effects marine environmental factors associated hydrodynamic processes on Japanese anchovy Engraulis japonicus in coastal Yellow Sea using data from situ ichthyoplankton surveys (7 recent years), a model satellite remote sensing. We confirmed peak period (May June) primary location (Haizhou Bay). defined ‘spawning temperature optima’ hypothesis to identify optimal (13.0–18.0°C) based egg occurrence abundance. detected fortnightly variation behaviour, which peaked after spring tide. Anchovy eggs showed evident aggregation nearshore upwelling area during May June, while strong July may cause negative spawning‐site choice zone. These findings behaviour Sea.