Using integrative taxonomy to establish the status of Alpheus peasei (Armstrong, 1940) (Decapoda: Alpheidae) as a single species throughout its distribution

Autor(es)

Santos, Patricia S. ^{[1, 2]} ; Terossi, Mariana ^[3] ; Mantelatto, Fernando L. ^[4] ; Almeida, Alexandre O. ^{[1, 2]}

Afiliação do(s) autor(es)

^[1] Univ Fed Pernambuco, Dept Zool, Programa Posgrad Biol Anim, Recife, PE - Brazil

^[2] Univ Fed Pernambuco UFPE, Ctr Biociencias, Dept Zool, Lab Biol Crustaceos, Av Moraes Rego 1235, BR-50670901 Recife, PE - Brazil

^[3] Univ Fed Rio Grande do Sul, Inst Biociencias, Dept Zool, Lab Carcinol, Av Bento Goncalves 9500, BR-91501970 Porto Alegre, RS - Brazil

^[4] Univ Sao Paulo, FFCLRP, Dept Biol, LBSC, Av Bandeirantes 3900, BR-14040901 Ribeirao Preto, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Zootaxa; v. 4629, n. 1, p. 51-68, JUL 4 2019.
• Citações Web of Science: 0

Resumo

The distribution of the western Atlantic snapping shrimp Alpheus peasei (Armstrong, 1940) has a large gap (approx. 12 degrees of latitude) between Tobago and the northeast of Brazil (State of Ceara). Here we analyzed specimens of A. peasei from its entire distribution range and type-locality (Bermuda), to test the hypothesis that they belong to a single species. The morphological analysis included the usual taxonomic characters as well as additional ones (such as mouthparts). The molecular analysis was based on the mitochondrial genes Cytochrome Oxidase I and 16S rRNA. The results of both analyses were congruent and indicated that A. peasei is a single species throughout its known distribution. As such, they indicated a connectivity between Northwestern and Southwestern Atlantic populations of A. peasei. The gap in distribution may be explained by scarce samplings in the North Brazil Shelf province and/or by passive larval dispersal. Our results also extend the known distribution of A. peasei in the northwestern Atlantic (Barbados, Belize and Costa Rica), and add a new record from the Brazilian coast (Pernambuco). (AU)

• Processo FAPESP: 16/50376-5 - Crustáceos decápodes como modelo para capacitação em taxonomia e filogenia molecular
• Beneficiário: Fernando Luis Medina Mantelatto
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• 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