Weight/carapace length relationship and condition factor of the roughneck shrimp, Rimapenaeus constrictus (Stimpson, 1874), on the southeastern Brazilian coast

Autor(es)

Da Silva, Alexandre R. ^[1] ; Lopes, Ana Elisa B. ^[2] ; Grabowski, Raphael C. ^[2] ; Castilho, Antonio L. ^[2]

Afiliação do(s) autor(es)

^[1] Univ Estadual Norte Parana UENP, Campus Cornelio Procopio, Rua Portugal 340, BR-86300000 Cornelio Procopio, PR - Brazil

^[2] Univ Estadual Paulista, Inst Biociencias Botucatu, Dept Bioestat Biol Vegetal Parasitol & Zool, Rua Prof Dr Antonio Celso Wagner Zanin 250, BR-18618689 Botucatu, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Anais da Academia Brasileira de Ciências; v. 93, n. 2 2021.
• Citações Web of Science: 0

Resumo

Abstract Rimapenaeus constrictus is a penaeid shrimp widely distributed in the Western Atlantic, frequently captured as bycatch in trawling activities. Here we describe the weight vs. carapace length relationship and the condition factor of the species. Shrimps were sampled in the Ubatuba region, northern littoral of São Paulo State, monthly. We analyzed 4,952 individuals (1,371 males and 3,581 females). We measured the individuals’ weight and carapace length, and the condition factor (CF) was calculated for both sexes. Females had a heavier body when compared to males, probably due to their greater maximum body size achieved. Both sexes presented a negative allometric growth in weight, probably due to their reproductive pattern and activities. We found similar mean CF values for males and females. From temporal analysis, the highest CF values for females were observed during the seasons with lower water temperatures. Such a situation may happen because females’ CF tend to be influenced by a greater food availability in the environment, induced by the intrusion of the South Atlantic Central Water during the spring and early summer in the Ubatuba. The information presented here could be used as subside in protection actions and management of bycatch species. (AU)

• Processo FAPESP: 15/13639-5 - Crescimento e dinâmica reprodutiva do camarão-ferrinho Rimapenaeus constrictus (Stimpson, 1874) (Penaeoidea) no litoral norte do Estado de São Paulo: síntese de cinco anos de estudo
• Beneficiário: Ana Elisa Bielert Lopes
• Modalidade de apoio: Bolsas no Brasil - Mestrado
• Processo FAPESP: 07/56733-5 - Abundancia, distribuicao e dinamica populacional dos camaroes penaeoidea (crustacea: decapoda) no litoral do estado de sao paulo.
• Beneficiário: Antonio Leão Castilho
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 98/07090-3 - Biodiversidade marinha bêntica no Estado de São Paulo
• Beneficiário: Antonia Cecília Zacagnini Amaral
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOTA - Temático
• 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