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Molecular evidence of two cryptic species of Stramonita (Mollusca, Muricidae) in the southeastern Atlantic coast of Brazil Genet. Mol. Biol.
De Biasi,Juliana Beltramin; Tomás,Acácio Ribeiro Gomes; Hilsdorf,Alexandre Wagner Silva.
Abstract Snails of the genus Stramonita are commonly found in the rocky intertidal habitat of the western Atlantic Ocean coast. They belong to a monophyletic taxon that occurs along the tropical and warm-temperate Atlantic and eastern Pacific rocky shores. This genus comprises different valid species and members of the S. haemastoma complex. In the present study, samples of Stramonita were collected from three different regions of southeastern Brazil. Partial sequences of two mitochondrial genes, COI and 16S rRNA, were used to compare nucleotides sequences between Stramonita specimens. Levels of nucleotide divergence greater than 2% across the three sampled regions were used for differentiation at the species level. One of the identified species was S....
Tipo: Info:eu-repo/semantics/other Palavras-chave: COI; 16s rRNA; Mitochondrial DNA; Southern oyster drill; Brazilian coast.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572016000300392
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Maintenance of filtering molluscs in aquaria for sub-chronic studies BABT
Andréa,Mara Mercedes de; Tomás,Acácio Ribeiro Gomes; Barreto,Oscar José Sallée; Vampré,Thais Mitre; Luchini,Luiz Carlos.
This work determined the best survival conditions for the clam Mytella guyanensis and the mussel Perna perna in the estuary and sea aquaria respectively over at least 12 days, which could enable their use in the ecotoxicological studies. The aquaria were set up with the appropriate water and sedimen, and allowed to establish for a minimum of one month before adding the organisms. The best survival conditions for M. guyanensis required more time for the aquarium stabilization, addition of inocula and more frequent water changes than for P. perna. The organisms' lipid contents increased and their condition index was maintained indicating the good conditions of the aquaria, hence, their possible use in the sub-chronic studies.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Condition index; Lipid content; Mytella guyanensis; Perna perna.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000100010
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