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Successful use of geochemical tools to trace the geographic origin of Long-Snouted Seahorse Hippocampus guttulatus raised in captivity
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Orientador(es)
Resumo(s)
The global market of dried seahorses mainly supplies Traditional Chinese Medicine and still relies on blurry trade chains that often cover less sustainable practices targeting these pricey and endangered fish. As such, reliable tools that allow the enforcement of traceability, namely to confirm the geographic origin of traded seahorses, are urgently needed. The present study evaluated the use of elemental fingerprints (EF) in the bony structures of long-snouted seahorses <i>Hippocampus guttulatus</i> raised in captivity in two different locations (southern Portugal and Northern Spain) to discriminate their geographic origin. The EF of different body parts of <i>H. guttulatus</i> were also evaluated as potential proxies for the EF of the whole body, in order to allow the analysis of damaged specimens and avoid the use of whole specimens for analysis. The contrasting EF of <i>H. guttulatus</i> raised in the two locations allowed their reliable discrimination. Although no single body part exactly mimicked the EF of the whole body, seahorse trunks, as well as damaged specimens, could still be correctly allocated to their geographic origin. This promising forensic approach to discriminate the geographic origin of seahorses raised in captivity should now be validated for wild conspecifics originating from different locations, as well as for other species within genus <i>Hippocampus</i>.
Descrição
Palavras-chave
Bony plates Elemental fingerprints ICP-MS Traceability
Contexto Educativo
Citação
Animals 11 (6): 1534 (2021)
Editora
MDPI