ArticlePeerJ2021
High bycatch rates of manta and devil rays in the "small-scale" artisanal fisheries of Sri Lanka.
Article in PeerJ, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 47 citations in OpenAlex.
- Evidence for a fisher-designed solution to manta and devil ray bycatch in tuna fisheries.Conservation biology : the journal of the Society for Conservation Biology · 2026Article
- Valuing conservation and natural wealth: The blue economy of manta ray watching in the Maldives.PloS one · 2026Article
- Reconstructing historical catch trends of threatened sharks and rays based on fisher ecological knowledge.Conservation biology : the journal of the Society for Conservation Biology · 2025Article
- Comparative population genomics of manta rays has global implications for management.Molecular ecology · 2025Article
- Age, growth, and intrinsic sensitivity of Endangered Spinetail Devil Ray (Marine biology · 2025Article
- Evidence of Závora Bay as a critical site for reef manta rays, Mobula alfredi, in southern Mozambique.Journal of fish biology · 2022Article
Corrections and comments
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Authors and funding
2 authors at 2 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundExpanding fisheries in developing nations like Sri Lanka have a significant impact on threatened marine species such as elasmobranchs. Manta and devil (mobulid) rays have some of the most conservative life history strategies of any elasmobranch, and even low to moderate levels of bycatch from gillnet fisheries may lead to significant population declines. A lack of information on life history, demographics, population trends, and fisheries impacts hinders effective management measures for these species.
methodWe report on mobulid fishery landings over nine years between 2011 and 2020 across 38 landing sites in Sri Lanka. We collected data on catch numbers, body sizes, sex, and maturity status for five mobulid species. We used a Bayesian state-space model to estimate monthly country-wide catch rates and total annual landings of mobulid rays. We used catch curve analyses to estimate total mortality for
resultsWe find that catch rates have declined an order of magnitude for all species across the study period, and that total annual captures of mobulid rays by the Sri Lankan artisanal fishing fleet exceed the estimated annual captures of mobulids in all global, industrial purse seine fisheries combined. Catch curve analyses suggest that
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