Southward re-distribution of tropical tuna fisheries activity can be explained by technological and management change.

ABSTRACT: There is broad evidence of climate change causing shifts in fish distribution worldwide, but less is known about the response of fisheries to these changes. Responses to climate-driven shifts in a fishery may be constrained by existing management or institutional arrangements and technological settings. In order to understand how fisheries are responding to ocean warming, we investigate purse seine fleets targeting tropical tunas in the east Atlantic Ocean using effort and sea surface temperature anomaly (SSTA) data from 1991 to 2017. An analysis of the spatial change in effort using a centre of gravity approach and empirical orthogonal functions is used to assess the spatiotemporal changes in effort anomalies and investigate links to SSTA. Both analyses indicate that effort shifts southwa

SUBMITTER: Rubio I 

PROVIDER: S-EPMC7317860 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature