Population dynamics of the harvested clam Anomalocardia brasiliana (Bivalvia: Veneridae) in Cidade Beach, south-east Brazil

Autor(es)

Corte, Guilherme Nascimento ^[1] ; Yokoyama, Leonardo Querobim ^[2] ; Coleman, Ross A. ^[3] ; Amaral, A. Cecilia Z. ^[2]

Afiliação do(s) autor(es)

^[1] Univ Estadual Campinas, Inst Biol, Dept Biol Anim, Programa Posgrad Ecol, Campinas, SP - Brazil

^[2] Univ Estadual Campinas, Inst Biol, Dept Biol Anim, Campinas, SP - Brazil

^[3] Univ Sydney, Sch Biol Sci, Sydney, NSW 2006 - Australia

• Tipo de documento: Artigo Científico
• Fonte: Journal of the Marine Biological Association of the United Kingdom; v. 95, n. 6, p. 1183-1191, SEP 2015.
• Citações Web of Science: 5

Resumo

Knowledge of the population dynamics and productivity of exploited species is essential to achieve the sustainable development of fisheries, and to ensure sustainable, long-term use of these resources. The venerid clam Anomalocardia brasiliana is harvested as a fishery resource from the French West Indies to Brazil. Yet, the exploitation of this species is not backed by management or regulations based on scientific knowledge. This can result in reduced (or even depleted) A. brasiliana density and biomass. Here, we examined the population dynamics of A. brasiliana over the course of 1 year at Cidade Beach, a sheltered sandy beach located in south-eastern Brazil. Sampling was done monthly from March 2007 to February 2008. The sampled population was predominantly juvenile. Growth and recruitment were continuous, indicating no major fluctuation in limiting factors, such as temperature, salinity and food. Nevertheless, the abundance and the turnover rate (P/B ratio) of A. brasiliana at Cidade were much smaller than the values observed in other areas of occurrence. The mortality was more intense in young individuals, and the peak of individual production occurred in individuals with a 25 mm shell length, suggesting that individuals smaller than this size should not be exploited. (AU)

• Processo FAPESP: 08/52392-1 - Biologia populacional e reprodutiva de Anomalocardia brasiliana (Gmelin, 1791) (Bivalvia: Veneridae)
• Beneficiário: Guilherme Nascimento Corte
• Modalidade de apoio: Bolsas no Brasil - Mestrado