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

Macroalgae-dominated reefs are a prominent habitat in tropical seascapes that support diversity of fishes, including fishery target species. To what extent, then, do macroalgal habitats contribute to small-scale reef fisheries? address this question we: (1) Quantified the macroalgae-associated fish component catches from 133 fisheries, (2) Compared life-history traits relevant fishing (e.g. growth, longevity) and coral-associated (3) Examined how species can influence catch diversity, trophic level vulnerability (4) Explored fisheries change with expansion using case study fishery-independent data for Seychelles. Fish utilised comprise 24% catch, but very few fished relied entirely on or coral post-settlement. Macroalgal fishes had similar traits, although declined increasing contribution macroalgae association whilst mean peaked when macroalgal-associated accounted 20%–30% catches. The Seychelles revealed total biomass reefs, primary increased as cover expanded. Our findings reinforce multiple types needed stability sustainability. Whilst have been focus management, we show potential size ways reduce overfishing. This is pertinent where repeated disturbances facilitating replacement habitats.