Data/hora: 10/06/2024 10:27:48

Provedor de dados: | Zoologia
País: | Brazil
Título: | Complexo Littorina ziczac (Gmelin) (Mollusca, Gastropoda, Caenogastropoda) no litoral fluminense: análise morfométrica, distribuição vertical e bioquímica
Autores: | Absalão,Ricardo Silva; Roberg,Renata Alves Pinheiro.
Data: | 1999-06-01
Ano: | 1999
Palavras-chave: | Littorina; Species complex; Vertical distribution; Biochemistiy; Rio de Janeiro; Brazil.
Resumo: | The Littorina ziczac (Gmelin, 1791) species complex was studied in Rio de Janeiro State, southeastern Brazil. The occurrence of three species was confirmed, through the analysis of penis morphology: L. ziczac (Gmelin, 1791), L. lineata d'Orbigny, 1841 and L. lineolata d'Orbigny, 1840. There is a correlation between the morphology of the penis and shell shape, thus it was possible to make a discrimination model based in conchologic data, with an efficiency of 75%. However, this model cannot be applied to others samples that weren't included in its formulation, due to phenotypic plasticity of the shell caused by biotic and abiotic factors. In the 9 areas studied L. lineolata was always the most abundam species. No vertical stratification in the distribution of the species was verified. From the nine enzymatic systems examined, only Pgi, Pgm e Mpi, presented identifiable patterns and no diagnostic locus was identified in any species. Nevertheless, S and I suggest the individualization of L. ziczac and L. lineata,respectively.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Português
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751999000200005
Editor: | Sociedade Brasileira de Zoologia
Relação: | 10.1590/S0101-81751999000200005
Formato: | text/html
Fonte: | Revista Brasileira de Zoologia  v.16 n.2 1999
Fonte: | info:eu-repo/semantics/openAccess