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Stage‐specific drivers of Pacific hake (Merluccius productus) recruitment in the California Current Ecosystem by Cathleen D. Vestfals; Kristin N. Marshall; Nick Tolimieri; Mary E. Hunsicker; Aaron M. Berger; Ian G. Taylor; Michael G. Jacox; Brendan D. Turley is a Environmental Science article available to read on EtoBox.

What is Stage‐specific drivers of Pacific hake (Merluccius productus) recruitment in the California Current Ecosystem about?

Understanding environmental drivers of recruitment variability in marine fishes remains an important challenge in fish ecology and fisheries management. We developed a conceptual life-history model for Pacific hake (Merluccius productus) along the west coast of the United States and Canada to generate stage-specific and spatiotemporally-specific hypotheses regarding the oceanographic and biological variables that likely influence their recruitment. Our model included seven life stages from prespawning female conditioning through pelagic juvenile recruitment (age-0 fish) for the coastal Pacific hake stock. Model-estimated log recruitment deviations from the 2020 hake assessment were used as the dependent variable, with predictor variables drawn primarily from a regional ocean reanalysis for the California Current Ecosystem. Indices of prey and predator abundance were also included in our analysis, as were predictors of local-and basin-scale climate. Five variables explained 59% of the recruitment variability not accounted for by the stock-recruitment relationship in the hake assessment. Recruitment deviations were negatively correlated with May-September eddy kinetic energy between

Who reads Stage‐specific drivers of Pacific hake (Merluccius productus) recruitment in the California Current Ecosystem?

Author

Cathleen D. Vestfals; Kristin N. Marshall; Nick Tolimieri; Mary E. Hunsicker; Aaron M. Berger; Ian G. Taylor; Michael G. Jacox; Brendan D. Turley

Publisher

Wiley

Published

2023

Language

EN

Field

Environmental Science (Physical Sciences)