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Fisheries Oceanography - 2024 - Bolin - A warming western boundary current increases the prevalence of commercially1.25 MB
Published VersionCC BY-NC-ND V4.0, Open Access
Journal article
A warming western boundary current increases the prevalence of commercially disruptive parasites in broadbill swordfish
Fisheries Oceanography, Vol.33(4), pp.1-14
2024
Appears in UniSC Supported Open Access Outputs
Abstract
Meat quality is of paramount importance in the fisheries and aquaculture industries, but the quality of seafood can be affected by environmental variability and change, creating uncertainties in the delivery of consistent, high-end product. Reports from fishers operating in an Australian fishery catching broadbill swordfish (Xiphias gladius) suggest that anomalously warm waters are linked with myoliquefaction of muscle tissue. The condition affects the marketability of fish by turning the meat into a soft, mushy texture post-mortem and is caused by infection by the myxozoan parasite Kudoa musculoliquefaciens. Here, we combine microscopy, molecular techniques and ecological modelling to explore potential environmental drivers of the prevalence and intensity of K. musculoliquefaciens in swordfish, as a first step in understanding how a warming ocean might exacerbate the risk of harvesting an infected swordfish and the resultant potential risk of myoliquefaction. We develop predictive dynamic risk surfaces on seasonal timescales, with results revealing both the likelihood of harvesting an infected swordfish and the intensity of parasite load increase during the Austral summer. The prevalence of the parasite further increases in the region dominated by the East Australian Current, when locally warm areas are atypically cool and when average monthly temperatures are more variable. These findings provide information useful in predicting the conditions under which the risk of harvesting infected swordfish might be intensified, enabling adaptation to climate change impacts and optimisation of decision-making when fishing under risky conditions.
Details
- Title
- A warming western boundary current increases the prevalence of commercially disruptive parasites in broadbill swordfish
- Authors
- Jessica A. Bolin (Corresponding Author) - University of the Sunshine Coast, Queensland, School of Science, Technology and EngineeringKaren Evans (Author) - Commonwealth Scientific and Industrial Research OrganisationDavid S. Schoeman (Author) - University of the Sunshine Coast, Queensland, School of Science, Technology and EngineeringClaire M. Spillman (Author) - Bureau of MeteorologyThomas S. Moore (Author) - Commonwealth Scientific and Industrial Research OrganisationJason R. Hartog (Author) - Commonwealth Scientific and Industrial Research OrganisationScott F. Cummins (Author) - University of the Sunshine Coast, Queensland, Centre for BioinnovationKylie L. Scales (Author) - University of the Sunshine Coast, Queensland, School of Science, Technology and Engineering
- Publication details
- Fisheries Oceanography, Vol.33(4), pp.1-14
- Publisher
- Wiley-Blackwell Publishing Ltd.
- Date published
- 2024
- DOI
- 10.1111/fog.12669
- ISSN
- 1365-2419; 1054-6006
- Copyright note
- © 2024 The Authors. Fisheries Oceanography published by John Wiley & Sons Ltd. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.
- Organisation Unit
- School of Science, Technology and Engineering; Centre for Bioinnovation
- Language
- English
- Record Identifier
- 991003190702621
- Output Type
- Journal article
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- Domestic collaboration
- International collaboration
- Web Of Science research areas
- Fisheries
- Oceanography
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