POPULATION STRUCTURE OF THE GHOST SHRIMP CALLICHIRUS MAJOR (CRUSTACEA, AXIIDEA, CALLICHIRIDAE) IN A SOUTHEAST BRAZILIAN BEACH

Autor(es)

Peiro, D. F. ^{[1, 2, 3]} ; Pantaleao, J. A. F. ^[1] ; Mantelatto, F. L. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Lab Bioecol & Sistemat Crustaceos LBSC, Dept Biol DB, Fac Filosofia Ciencias & Letras Ribeirao Preto FF, Av Bandeirantes 3900, BR-14040901 Ribeirao Preto, SP - Brazil

^[2] Inst Biol Marinha Bioicos, Rua Joao Glorioso da Cruz, BR-11680000 Ubatuba, SP - Brazil

^[3] Univ Fed Sao Carlos, SEaD UAB, Curso Engn Ambiental, Ecol Ecossistemas Aquat Terrestres & Interfaces, Sao Carlos, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: VIE ET MILIEU-LIFE AND ENVIRONMENT; v. 69, n. 4, p. 259-268, 2019.
• Citações Web of Science: 0

Resumo

The aim of this study was to evaluate the population structure of Callichirus major from a sandy beach in Southeast Brazil and compare the results with previous studies along the Brazilian coast. Some of the evaluated parameters (e.g. population density and size of males and females) differed from other populations established in Brazil. The abundance of individuals varied considerably throughout the sampling period. The dorsal oval length (DO) of males, females, and ovigerous females was 6.55-15.65 mm (10.32 +/- 2.25 mm), 5.95-15.05 mm (10.78 +/- 2.5 mm), and 10.3-15.0 mm (13.03 +/- 1.24 mm), respectively. The bimodal size class distribution of the population may indicate recruitment peaks. There was no significant deviation from the expected 1:1 overall sex ratio throughout the sampling periods and size classes. The average population density was estimated to 0.202 +/- 0.494 ind m(-2) (0-4 ind m(-2)). The variations in the evaluated parameters among different populations studied are probably related to differences in environmental and latitudinal conditions and possibly to the influence of human activity in certain localities. (AU)

• Processo FAPESP: 18/13685-5 - Análise integrativa da fauna brasileira de crustáceos decápodes: taxonomia, sistemática filogenética, espermiotaxonomia, morfologia do desenvolvimento pós-embrionário, ecologia e conservação
• Beneficiário: Fernando Luis Medina Mantelatto
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOTA - Temático
• 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