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| Main Authors: | , , , , , , , , , , |
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| Format: | Artículo científico |
| Language: | en |
| Published: |
Biology
2025
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| Online Access: | https://pubmed.ncbi.nlm.nih.gov/40001960/ |
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| _version_ | 1868266237339893761 |
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| author | Consales, Guia Campani, Tommaso Di Noi, Agata Garofalo, Marco Di Marcantonio, Eduardo Reinero, Francesca Romana Casini, Silvia Dallai, Luigi Sperone, Emilio Marsili, Letizia Micarelli, Primo |
| author_facet | Consales, Guia Campani, Tommaso Di Noi, Agata Garofalo, Marco Di Marcantonio, Eduardo Reinero, Francesca Romana Casini, Silvia Dallai, Luigi Sperone, Emilio Marsili, Letizia Micarelli, Primo Consales, Guia Campani, Tommaso Di Noi, Agata Garofalo, Marco Di Marcantonio, Eduardo Reinero, Francesca Romana Casini, Silvia Dallai, Luigi Sperone, Emilio Marsili, Letizia Micarelli, Primo |
| collection | PubMed - marine biology |
| contents | Minimizing Stress in White Sharks: Non-Invasive Epidermal Biopsies for Isotopic and Vitellogenin Analyses. Consales, Guia Campani, Tommaso Di Noi, Agata Garofalo, Marco Di Marcantonio, Eduardo Reinero, Francesca Romana Casini, Silvia Dallai, Luigi Sperone, Emilio Marsili, Letizia Micarelli, Primo The great white shark (), a keystone predator vital to marine ecosystem stability, is increasingly exposed to anthropogenic threats, including endocrine-disrupting chemicals (EDCs). This study highlights the use of non-invasive epidermal biopsies to assess physiological and ecological parameters in 28 live specimens sampled from the Dyer Island Nature Reserve, South Africa. Epidermal tissue was analyzed for vitellogenin (Vtg), a biomarker of estrogenic exposure, while dermal tissue was used for stable isotope analyses of carbon and nitrogen, essential for understanding the feeding habitat of white sharks. Vitellogenin, typically restricted to sexually mature females, was unexpectedly detected in males and immature females, indicating significant exposure to estrogenic pollutants. This finding raises concerns about the potential reproductive and population-level impacts on this vulnerable species. Stable isotope analyses confirmed that dermal tissue alone is sufficient for trophic studies, eliminating the need for deeper muscle sampling. By demonstrating that epidermal and dermal tissues provide critical data for both biomarkers and isotopic studies, this research supports the adoption of minimally invasive techniques. Shallower biopsies reduce stress on the animals, making this method a valuable tool for conservation research and management of . |
| format | Artículo científico |
| id | pubmed_40001960 |
| institution | PubMed |
| language | en |
| publishDate | 2025 |
| publisher | Biology |
| record_format | pubmed |
| spellingShingle | Minimizing Stress in White Sharks: Non-Invasive Epidermal Biopsies for Isotopic and Vitellogenin Analyses. Consales, Guia Campani, Tommaso Di Noi, Agata Garofalo, Marco Di Marcantonio, Eduardo Reinero, Francesca Romana Casini, Silvia Dallai, Luigi Sperone, Emilio Marsili, Letizia Micarelli, Primo Minimizing Stress in White Sharks: Non-Invasive Epidermal Biopsies for Isotopic and Vitellogenin Analyses. Consales, Guia Campani, Tommaso Di Noi, Agata Garofalo, Marco Di Marcantonio, Eduardo Reinero, Francesca Romana Casini, Silvia Dallai, Luigi Sperone, Emilio Marsili, Letizia Micarelli, Primo The great white shark (), a keystone predator vital to marine ecosystem stability, is increasingly exposed to anthropogenic threats, including endocrine-disrupting chemicals (EDCs). This study highlights the use of non-invasive epidermal biopsies to assess physiological and ecological parameters in 28 live specimens sampled from the Dyer Island Nature Reserve, South Africa. Epidermal tissue was analyzed for vitellogenin (Vtg), a biomarker of estrogenic exposure, while dermal tissue was used for stable isotope analyses of carbon and nitrogen, essential for understanding the feeding habitat of white sharks. Vitellogenin, typically restricted to sexually mature females, was unexpectedly detected in males and immature females, indicating significant exposure to estrogenic pollutants. This finding raises concerns about the potential reproductive and population-level impacts on this vulnerable species. Stable isotope analyses confirmed that dermal tissue alone is sufficient for trophic studies, eliminating the need for deeper muscle sampling. By demonstrating that epidermal and dermal tissues provide critical data for both biomarkers and isotopic studies, this research supports the adoption of minimally invasive techniques. Shallower biopsies reduce stress on the animals, making this method a valuable tool for conservation research and management of . |
| title | Minimizing Stress in White Sharks: Non-Invasive Epidermal Biopsies for Isotopic and Vitellogenin Analyses. |
| url | https://pubmed.ncbi.nlm.nih.gov/40001960/ |