The contribution of macroalgae-associated fishes to small-scale tropical reef fisheries

Wilson, S. K.; Fulton, C. J.; Graham, N. A. J.; Abesamis, R. A.; Berkstrom, C.; Coker, D. J.; Depczynski, M.; Evans, R. D.; Fisher, R.; Goetze, J.; Hoey, A.; Holmes, T. H.; /Kulbicki, Michel; Noble, M.; Robinson, J. P. W.; Bradley, M.; Akerlund, C.; Barrett, L. T.; Bucol, A. A.; Birt, M. J.; Chacin, D. H.; Chong-Seng, K. M.; Eggertsen, L.; Eggertsen, M.; Ellis, D.; Leung, P. T. Y.; Lam, P. K. S.; van Lier, J.; Matis, P. A.; Perez-Matus, A.; Piggott, C. V. H.; Radford, B.; Tano, S.; Tinkler, P.

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dc.creator	Wilson, S. K.
dc.creator	Fulton, C. J.
dc.creator	Graham, N. A. J.
dc.creator	Abesamis, R. A.
dc.creator	Berkstrom, C.
dc.creator	Coker, D. J.
dc.creator	Depczynski, M.
dc.creator	Evans, R. D.
dc.creator	Fisher, R.
dc.creator	Goetze, J.
dc.creator	Hoey, A.
dc.creator	Holmes, T. H.
dc.creator	/Kulbicki, Michel
dc.creator	Noble, M.
dc.creator	Robinson, J. P. W.
dc.creator	Bradley, M.
dc.creator	Akerlund, C.
dc.creator	Barrett, L. T.
dc.creator	Bucol, A. A.
dc.creator	Birt, M. J.
dc.creator	Chacin, D. H.
dc.creator	Chong-Seng, K. M.
dc.creator	Eggertsen, L.
dc.creator	Eggertsen, M.
dc.creator	Ellis, D.
dc.creator	Leung, P. T. Y.
dc.creator	Lam, P. K. S.
dc.creator	van Lier, J.
dc.creator	Matis, P. A.
dc.creator	Perez-Matus, A.
dc.creator	Piggott, C. V. H.
dc.creator	Radford, B.
dc.creator	Tano, S.
dc.creator	Tinkler, P.
dc.date	2022
dc.date.accessioned	2022-04-27T17:37:48Z
dc.date.available	2022-04-27T17:37:48Z
dc.identifier	https://www.documentation.ird.fr/hor/fdi:010084503
dc.identifier	oai:ird.fr:fdi:010084503
dc.identifier	Wilson S. K., Fulton C. J., Graham N. A. J., Abesamis R. A., Berkstrom C., Coker D. J., Depczynski M., Evans R. D., Fisher R., Goetze J., Hoey A., Holmes T. H., Kulbicki Michel, Noble M., Robinson J. P. W., Bradley M., Akerlund C., Barrett L. T., Bucol A. A., Birt M. J., Chacin D. H., Chong-Seng K. M., Eggertsen L., Eggertsen M., Ellis D., Leung P. T. Y., Lam P. K. S., van Lier J., Matis P. A., Perez-Matus A., Piggott C. V. H., Radford B., Tano S., Tinkler P.. The contribution of macroalgae-associated fishes to small-scale tropical reef fisheries. 2022, [Early access], p. [15 p.]
dc.identifier.uri	http://biblioteca-repositorio.clacso.edu.ar/handle/CLACSO/169098
dc.description	Macroalgae-dominated reefs are a prominent habitat in tropical seascapes that support a diversity of fishes, including fishery target species. To what extent, then, do macroalgal habitats contribute to small-scale tropical reef fisheries? To address this question we: (1) Quantified the macroalgae-associated fish component in catches from 133 small-scale fisheries, (2) Compared life-history traits relevant to fishing (e.g. growth, longevity) in macroalgal and coral-associated fishes, (3) Examined how macroalgae-associated species can influence catch diversity, trophic level and vulnerability and (4) Explored how tropical fisheries change with the expansion of macroalgal habitats using a case study of fishery-independent data for Seychelles. Fish that utilised macroalgal habitats comprise 24% of the catch, but very few fished species relied entirely on macroalgal or coral habitats post-settlement. Macroalgal and coral-associated fishes had similar life-history traits, although vulnerability to fishing declined with increasing contribution of macroalgae association to the catch, whilst mean trophic level and diversity peaked when macroalgal-associated fish accounted for 20%-30% of catches. The Seychelles case study revealed similar total fish biomass on macroalgal and coral reefs, although the biomass of primary target species increased as macroalgae cover expanded. Our findings reinforce that multiple habitat types are needed to support tropical fishery stability and sustainability. Whilst coral habitats have been the focus of tropical fisheries management, we show the potential for macroalgae-associated fish to support catch size and diversity in ways that reduce vulnerability to overfishing. This is pertinent to seascapes where repeated disturbances are facilitating the replacement of coral reef with macroalgal habitats.
dc.language	EN
dc.subject	catch composition
dc.subject	coral reefs
dc.subject	ecosystem-based management
dc.subject	Regime shifts
dc.subject	Sargassum
dc.subject	seaweed habitats
dc.title	The contribution of macroalgae-associated fishes to small-scale tropical reef fisheries
dc.type	text
dc.coverage	SEYCHELLES
dc.coverage	ZONE TROPICALE