Variation in size distribution of juvenile pink shrimps Farfantepenaeus brasiliensis and F. paulensis in the estuarine-adjacent ocean area of Cananeia, south-eastern coast of Brazil

Autor(es)

Salvati, Dalilla da Silva ^[1] ; Perroca, Julia Fernandes ^[1] ; Simoes, Sabrina Morilhas ^[1] ; Castilho, Antonio Leao ^[2] ; da Costa, Rogerio Caetano ^[1]

Afiliação do(s) autor(es)

^[1] Sao Paulo State Univ, Fac Sci, Biol Sci Dept, Lab Biol Marine & Freshwater Shrimp LABCAM, Bauru, SP - Brazil

^[2] Sao Paulo State Univ, Zool Dept, Inst Biosci Botucatu, Study Grp Crustacean Biol Ecol & Culture NEBECC, Botucatu, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Journal of the Marine Biological Association of the United Kingdom; v. 101, n. 1, p. 117-129, FEB 2021.
• Citações Web of Science: 0

Resumo

The study characterized the structure of juveniles and sub-adults of Farfantepenaeus brasiliensis and F. paulensis in the Cananeia-Iguape estuarine lagoon system and its adjacent coastal area by evaluating the period of juvenile recruitment, sex ratio, growth, longevity, natural mortality, and development time until the late juvenile phase. Samples were collected from July 2012 to June 2014. Shrimps were identified by species and sex, and measured (carapace length - CL mm); 889 individuals of F. brasiliensis and 848 of F. paulensis were analysed. Females were more abundant than males for both species. The growth parameters of F. brasiliensis were: CL infinity = 45.5 mm, k = 1.8 year(-1) for males and CL infinity = 55.2 mm, k = 1.6 year(-1) for females; longevity of 2.52 years (males) and 2.88 years (females); and natural mortality of 1.71 (males) and 1.55 (females). For F. paulensis, the following values were observed: CL infinity = 40.7 mm, k = 2.3 year(-1) for males and CL infinity = 56.5 mm, k = 1.9 year(-1) for females; longevity of 2.04 years (males) and 2.37 years (females); and natural mortality of 2.39 (males) and 2.05 (females). The juvenile recruitment of both species peaked in January 2014. The development time until late juvenile phase was similar to 7 months (F. brasiliensis) and similar to 5 months (F. paulensis). Even though the highest abundance of juveniles did not occur in the closed season, fishing is forbidden in the estuarine area and the migration towards the adult population occurred close to or even during the closed season. (AU)

• 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
• 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: 19/01308-5 - Qual o impacto da pesca de arrasto sobre a assembléia de camarões em áreas costeiras marinhas? Uma análise temporal de populações à ecossistema no Litoral Norte de São Paulo
• Beneficiário: Júlia Fernandes Perroca
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 15/15210-6 - Distribuição e dinâmica populacional de juvenis dos camarões-rosa Farfantepenaeus brasiliensis (Latreille, 1817) e F. paulensis (Pérez-Farfante, 1967) na região de Cananéia, extremo Sul do estado de São Paulo
• Beneficiário: Dalilla da Silva Salvati
• Modalidade de apoio: Bolsas no Brasil - Mestrado