ArticleConservation biology : the journal of the Society for Conservation Biology2022
Effects of human footprint and biophysical factors on the body-size structure of fished marine species.
Article in Conservation biology : the journal of the Society for Conservation Biology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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8 citing papers in PubMed.
- Degradation of fish food webs in the Anthropocene.Science advances · 2026Article
- Measuring biological effectiveness across a very large, coherent network of coastal marine protected areas.Ecological applications : a publication of the Ecological Society of America · 2025Article
- Beyond the Surface: Mesophotic Reefs as Potential Refuges for Shallow Fish Assemblages.Ecology and evolution · 2024Article
- Novel Drop-Sampler for Simultaneous Collection of Stereo-Video, Environmental DNA and Oceanographic Data.Ecology and evolution · 2024Article
- Black coral forests enhance taxonomic and functional distinctiveness of mesophotic fishes in an oceanic island: implications for biodiversity conservation.Scientific reports · 2023Article
- Article
- Effects of human footprint and biophysical factors on the body-size structure of fished marine species.Conservation biology : the journal of the Society for Conservation Biology · 2022Article
- Depth and benthic habitat influence shallow and mesophotic predatory fishes on a remote, high-latitude coral reef.PloS one · 2022Article
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Authors and funding
32 authors.
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Abstract
Marine fisheries in coastal ecosystems in many areas of the world have historically removed large-bodied individuals, potentially impairing ecosystem functioning and the long-term sustainability of fish populations. Reporting on size-based indicators that link to food-web structure can contribute to ecosystem-based management, but the application of these indicators over large (cross-ecosystem) geographical scales has been limited to either fisheries-dependent catch data or diver-based methods restricted to shallow waters (<20 m) that can misrepresent the abundance of large-bodied fished species. We obtained data on the body-size structure of 82 recreationally or commercially targeted marine demersal teleosts from 2904 deployments of baited remote underwater stereo-video (stereo-BRUV). Sampling was at up to 50 m depth and covered approximately 10,000 km of the continental shelf of Australia. Seascape relief, water depth, and human gravity (i.e., a proxy of human impacts) were the strongest predictors of the probability of occurrence of large fishes and the abundance of fishes above the minimum legal size of capture. No-take marine reserves had a positive effect on the abundance of fishes above legal size, although the effect varied across species groups. In contrast, sublegal fishes were best predicted by gradients in sea surface temperature (mean and variance). In areas of low human impact, large fishes were about three times more likely to be encountered and fishes of legal size were approximately five times more abundant. For conspicuous species groups with contrasting habitat, environmental, and biogeographic affinities, abundance of legal-size fishes typically declined as human impact increased. Our large-scale quantitative analyses highlight the combined importance of seascape complexity, regions with low human footprint, and no-take marine reserves in protecting large-bodied fishes across a broad range of species and ecosystem configurations.
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