Life table approach for assessing the population status and conservation priorities of the common snook (Centropomus undecimalis) in the Western Tropical South Atlantic of Northeast Brazil

de Oliveira, Cicero Diogo Lins; Moura Junior, Erik Marcelo de; Rangely, Jordana; Neves, Jessika Maria M.; Fabré, Nidia Noemi

doi:10.1016/j.rsma.2024.103385

Regional Studies in Marine Science

2024

DOI: 10.1016/j.rsma.2024.103385

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Life table approach for assessing the population status and conservation priorities of the common snook (Centropomus undecimalis) in the Western Tropical South Atlantic of Northeast Brazil

Cicero Diogo Lins de Oliveira,

Erik Marcelo de Moura Junior,

Jordana Rangely

et al.

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Cited by 2 publications

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Bioecological Attributes as Predictors of Global Extinction Risk for Marine Chondrichthyans (Chondrichthyes, Huxley, 1880)

Oliveira,

da Silva,

Ladle

et al. 2024

Aquatic Conservation

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Marine chondrichthyans are experiencing a global decline, but identifying appropriate conservation actions is challenging due to the lack of basic biological information, such as growth parameters and reproduction. In this study, we identify biological and ecological attributes that can be both easily obtainable and are effective predictors of extinction threat. A bioecological attribute database was constructed for marine chondrichthyan species, including information on maximum length, habitat, reproductive mode, trophic level and conservation status, among others. Data sources included the Shark‐References, IUCN and FishBase databases. Following this, a generalized linear model was built with conservation status as the response variable and bioecological attributes as explanatory variables, and the model's accuracy was tested for each group. Then, the model was applied to species not yet classified (data deficient [DD] or not evaluated [NE]) to determine their probability of extinction risk. In total, data were compiled for 1225 species of marine Chondrichthyes (537 sharks, 636 rays and 52 chimaeras); approximately 20% of these species are classified as DD or NE. The model demonstrated high accuracy overall: 95% for chimaeras, 77% for rays and 72% for sharks. Our analysis indicates that, among the species that are classified as DD or NE, 58% of rays, 44% of sharks and 66% of chimaeras may be at risk of extinction. These results clearly demonstrate how bioecological attributes can serve as proxies of extinction risk in Chondrichthyes and provide a solid foundation for conservation planning and prioritization for this ecologically important yet data poor taxon.

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Bioecological Attributes as Predictors of Global Extinction Risk for Marine Chondrichthyans (Chondrichthyes, Huxley, 1880)

Oliveira,

da Silva,

Ladle

et al. 2024

Aquatic Conservation

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show abstract

Revealing the reproductive biology and growth dynamics of Arius maculatus (Thunberg, 1792) in the Mekong Delta estuary, Vietnam

Vo,

To,

Huynh

et al. 2024

Regional Studies in Marine Science

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Life table approach for assessing the population status and conservation priorities of the common snook (Centropomus undecimalis) in the Western Tropical South Atlantic of Northeast Brazil

Cited by 2 publications

References 34 publications

Bioecological Attributes as Predictors of Global Extinction Risk for Marine Chondrichthyans (Chondrichthyes, Huxley, 1880)

Bioecological Attributes as Predictors of Global Extinction Risk for Marine Chondrichthyans (Chondrichthyes, Huxley, 1880)

Revealing the reproductive biology and growth dynamics of Arius maculatus (Thunberg, 1792) in the Mekong Delta estuary, Vietnam

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