Environmental associations of Pacific bluefin tuna (Thunnus orientalis) catch in the California Current system

We investigate the impact of oceanographic variability on Pacific bluefin tuna (Thunnus orientalis: PBF) distributions in the California Current system using remotely sensed environmental data, and fishery‐dependent data from multiple fisheries in a habitat‐modeling framework. We examined the effect...

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Bibliographic Details
Published in:Fisheries oceanography 2019-07, Vol.28 (4), p.372-388
Main Authors: Runcie, Rosa M., Muhling, Barbara, Hazen, Elliott L., Bograd, Steven J., Garfield, Toby, DiNardo, Gerard
Format: Article
Language:English
Subjects:
Additives
Availability
California Current
Chlorophyll
Chlorophylls
commercial fisheries
Commercial fishing
dynamic habitat models
eastern Pacific Ocean
Ecological monitoring
Ecosystem management
Eddy kinetic energy
El Nino
El Nino phenomena
Environmental organizations
Fisheries
Fisheries management
Fishery data
Fishery management
Fishing
Fishing effort
Fishing fleets
Fishing vessels
Gillnets
Habitats
Heat waves
Kinetic energy
Large Marine Ecosystem
Ocean models
Pacific bluefin tuna
Probability theory
Purse seines
Recreation
recreational fisheries
Remote sensing
Sea surface
Sea surface temperature
Selectivity
Spatial distribution
Sport fishing
Temporal distribution
Thunnus orientalis
Tuna
Tuna fisheries
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Description
Summary:We investigate the impact of oceanographic variability on Pacific bluefin tuna (Thunnus orientalis: PBF) distributions in the California Current system using remotely sensed environmental data, and fishery‐dependent data from multiple fisheries in a habitat‐modeling framework. We examined the effects of local oceanic conditions (sea surface temperature, surface chlorophyll, sea surface height, eddy kinetic energy), as well as large‐scale oceanographic phenomena, such as El Niño, on PBF availability to commercial and recreational fishing fleets. Results from generalized additive models showed that warmer temperatures of around 17–21°C with low surface chlorophyll concentrations (
ISSN:1054-6006
1365-2419
DOI:10.1111/fog.12418