Movement behavior of swordfish provisions connectivity between the temperate and tropical southwest Pacific Ocean.

ABSTRACT: Swordfish (Xiphias gladius) are a widely distributed (45°N-45°S) large pelagic fish targeted by fisheries worldwide. Swordfish that occur at high latitudes tend to disproportionately be large adults, so their movements have implications for population dynamics and fisheries management. In the southwest Pacific, little is known about this subset of the stock and existing evidence suggests limited movement from the subtropics into cooler high latitude waters. Here, we capitalize on the recent emergence of a recreational swordfish fishery off temperate southeast Australia to characterize movements of swordfish caught in the fishery with pop-up satellite archival transmitting tags. Data were recovered from tags deployed for 56-250 days on 11 swordfish (50-350 kg) tagged between 38 and 43°S in

SUBMITTER: Tracey SR 

PROVIDER: S-EPMC10362066 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature