Thermal Tolerance of Juvenile New England Chain Catsharks, Scyliorhinus Retifer Garman, 1881 (Chondrichthyes, Carcharhiniformes, Scyliorhinidae)
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Cynthia E. M. Lupton [1] ; Wayne A. Bennett [1]
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[1] University of West Florida
University of West Florida
Estados Unidos
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- Localización: Thalassas: An international journal of marine sciences, ISSN 0212-5919, Vol. 39, Nº. 1, 2023, págs. 69-76
- Idioma: inglés
- Texto completo no disponible (Saber más ...)
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Resumen
Our understanding of thermal ecology of elasmobranch fishes is grossly understudied. Currently, thermal niche requirements are known for only four elasmobranch species: Atlantic stingray, Hypanus sabina, (Fangue & Bennett 2003), Little skate, Leucoraja erinacea, (Stoler 2016), Blue-spotted ribbontail stingray, Taeniura lymma, (Dabruzzi et al. 2012), and Whitespotted bamboo shark, Chiloscyllium plagiosum, (Porter 2020). The purpose of our study was to use standardized Critical Thermal Methodology (CTM) to quantify thermal niche parameters of the chain catshark and quantify thermal niche requirements of juvenile Chain catsharks (Scyliorhinus retifer), from a New England population. The chain catshark is a small demersal species inhabiting the outer shelf, and upper slope waters in temperate regions from southern New England to Nicaragua. Our research compares catshark data to laboratory values from other elasmobranchs to bridge the knowledge gap surrounding elasmobranch thermal ecology. The data defined the upper and lower critical temperatures along the experimental acclimation range, as well as define the upper and lower thermal chronic limits (Becker and Genoway 1979; Beitinger and Bennett 2000). The Chain catshark data presented here is the first from an elasmobranch belonging to the family Scyliorhinidae
