1. Molecular identification of whole squids and calamari at fairs and markets in regions of Latin America.
- Author
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Paiva BL, Rodrigues AES, Almeida IOF, Silva KF, Haimovici M, Markaida U, Charvet P, Faria VV, Batista BB, Tomás ARG, Rodrigues-Filho LFDS, Ready JS, and Sales JBL
- Subjects
- Animals, Latin America, RNA, Ribosomal, 16S genetics, Phylogeny, Decapodiformes genetics, Decapodiformes classification
- Abstract
The commercial importance of cephalopods has increased considerably, being an important fishing resource. However, during the preparation for commercialization of those species, they suffer the process known as "finning" which includes removing and separating the head, arm, skin or even having the body structure cut into rings, which ends up making it difficult or often prevents the identification of the species, which can lead to replacements. In this sense, the present study aimed to use the large ribosomal region, rrnL (16S rDNA) to genetically identify cephalopod species sold in markets and fairs in Latin America. Whole and processed samples were collected from supermarkets and directly from local fishers the approximate collection location. Each generated sequence was submitted to the blastn portal for molecular comparison and included in the database for subsequent genetic identification. Our results indicate labeling errors in samples from the State of Pará that contained the species Dosidicus gigas found only in the Pacific Ocean and were generically labeled as "National Lula". No type of substitution was found among the samples that were being sold at fairs and markets, only labeling errors. Thus, our results demonstrate the effectiveness of the rrnL for identifying species and evaluating labeling errors., Competing Interests: Declarations. Competing interests: The authors declare no competing interests. Ethical approval: Ethical review and approval were not required for this study, because this work does not contain any experimental studies with live animals. Consent to participate: Authors declare consent to participate. Consent for publication: Authors declare consent for publication if the manuscript is accepted., (© 2024. The Author(s).)
- Published
- 2024
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