دورية أكاديمية
Molecular identification of sharks from the genus Sphyrna (Elasmobranchii: Chondrichthyes) in Maranhão Coast (Brazil)
العنوان: | Molecular identification of sharks from the genus Sphyrna (Elasmobranchii: Chondrichthyes) in Maranhão Coast (Brazil) |
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المؤلفون: | C. F. L. Sodré, W. Macedo, L. M. Feitosa, N. S. M. Sousa, R. N. F. Carvalho-Neta, L. F. Carvalho Costa, J. L. S. Nunes, L. Tchaicka |
المصدر: | Brazilian Journal of Biology, Vol 84 (2024) |
بيانات النشر: | Instituto Internacional de Ecologia, 2024. |
سنة النشر: | 2024 |
المجموعة: | LCC:Science LCC:Biology (General) LCC:Zoology LCC:Botany |
مصطلحات موضوعية: | Elasmobranchii, Sphyrnidae, COI, ITS2, forensic identification, Science, Biology (General), QH301-705.5, Zoology, QL1-991, Botany, QK1-989 |
الوصف: | Abstract Sharks of the genus Sphyrna are under intense exploitation globally. In Brazil’s northern coast, this genus represents a high proportion of fisheries landings and comprises four species. However, due to difficulty of specific identification when specimens are landed, most of the records are limited to the genus level. Here we analyzed the effectiveness of ITS2 (Internal Transcribed Spacer 2 of rDNA) fragment length protocol (Abercrombie et al., 2005) for identifying hammerhead shark species, comparing with the analysis of COI (Cytochrome oxidase subunit I) and ITS2 sequences. We evaluated samples of muscle tissue acquired in the main fishing ports of Maranhão: Carutapera, Raposa e Tutóia. Sampling was conducted between March 2017 to March 2018 and complemented with material deposited in collection (2015). COI results indicated the occurrence of endangered species which are prohibited to be landed. These include Sphyrna mokarran (67%), S. lewini (15%), S. tudes (3%), and S. tiburo (15%). For the ITS2 marker, we investigated the optimization of the protocol developed by Abercrombie (2005) for to improve the use in this geographical area througout design of a new primers. |
نوع الوثيقة: | article |
وصف الملف: | electronic resource |
اللغة: | English |
تدمد: | 1678-4375 1519-6984 |
Relation: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842024000101111&lng=en&tlng=en; http://www.scielo.br/pdf/bjb/v84/1519-6984-bjb-84-e274862.pdf; https://doaj.org/toc/1678-4375 |
DOI: | 10.1590/1519-6984.274862 |
URL الوصول: | https://doaj.org/article/94c2a709d95a41be88ce4898dccd3afe |
رقم الأكسشن: | edsdoj.94c2a709d95a41be88ce4898dccd3afe |
قاعدة البيانات: | Directory of Open Access Journals |
تدمد: | 16784375 15196984 |
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DOI: | 10.1590/1519-6984.274862 |