Morphological and molecular analyses support the amphi-Atlantic distribution and taxonomic status of the snapping shrimp Alpheus intrinsecus Spence Bate, 1888 (Crustacea: Decapoda: Alpheidae)

Autor(es)

Cunha, Andressa Maria ; Terossi, Mariana ; Mantelatto, Fernando L. ; Almeida, Alexandre O.

• Tipo de documento: Artigo Científico
• Fonte: Zootaxa; v. 4303, n. 4, p. 573-589, AUG 11 2017.
• Citações Web of Science: 3

Resumo

The objective of this study was to review the amphi-Atlantic snapping shrimp Alpheus intrinsecus Spence Bate, 1888 combining traditional taxonomy and molecular analysis, in order to confirm the distribution pattern reported for the species, and to verify the existence of cryptic species among specimens of both sides of the Atlantic. In total, 134 specimens previously identified as A. intrinsecus from the western Atlantic (Mexico, Veracruz; Venezuela, Sucre; Suriname; Brazil, Pernambuco, Bahia, Rio de Janeiro, Sao Paulo, and Santa Catarina) and eastern Atlantic (Sierra Leone, Ghana, Benin, Cameroon, Democratic Republic of Congo, Angola) were examined. Main diagnostic characters were analyzed. Although unusual for the group, the mouthparts were also examined to provide additional comparative data. The species redescription and illustrations were carried out based on specimens from the coast of Bahia (Brazil), near the type locality. Furthermore, all existing information on the species was compiled. Morphological analysis indicated the absence of consistent differences between specimens from the various locations, and genetic analyses using the mitochondrial gene 16S corroborated these results. Therefore, the amphi-Atlantic distribution of A. intrinsecus was confirmed, and the hypothesis of existence of two or more cryptic species was refuted. The southern limit of distribution in the eastern Atlantic was extended to Angola. (AU)

• Processo FAPESP: 09/54931-0 - Melhoria e capacitação das coleções científicas do Departamento de Biologia da Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo
• Beneficiário: Carlos Alberto Garofalo
• Modalidade de apoio: Auxílio à Pesquisa - Programa Infraestrutura - Acervos biológicos
• Processo FAPESP: 11/11901-3 - Sistemática filogenética dos camarões do gênero Hippolyte (Decapoda: Caridea: Hippolytidae)
• Beneficiário: Mariana Terossi Rodrigues Mariano
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 10/50188-8 - Crustáceos decápodes: multidisciplinaridade na caracterização da biodiversidade marinha do estado de São Paulo (taxonomia, espermiotaxonomia, biologia molecular e dinâmica populacional) (Biodiversidade Marinha)
• Beneficiário: Fernando Luis Medina Mantelatto
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOTA - Temático