Population structure of the bivalve Anomalocardia brasiliana, (Gmelin, 1791) in the semi-arid estuarine region of northeastern Brazil

Abstract

For several decades, the bivalve mollusk Anomalocardia brasiliana has been extracted in estuarine areas in the semi-arid region of northeastern Brazil. However, information on both dynamics and abundance of their populations are missing. In this context, the present study, therefore, investigated several aspects of the population structure of A. brasiliana on beaches near the estuary of the Apodi River in Northeast Brazil. The aims were to determine the population density of A. brasiliana during different times of the year, to estimate population parameters, and to relate species density and distribution to the abiotic characteristics of the region. Keywords: bivalve mollusk, growth, recruitment, estuary, tropical. Estrutura populacional do bivalve

Distribution and density of the mollusk Donax striatus (Linnaeus, 1767) in a tropical estuarine region in the brazilian semi-arid

“…The highest temperature records occurred in April/2009 with an average of 32.9 °C; the lowest average value (28.6 °C) was recorded in October/2011 (Figure 1a). According to Rodrigues et al (2010) and Cruz-Neta and Henry-Silva (2013), this low amplitude in temperature variation results from the climate in this region. Cruz-Neta and Henry-Silva (2013) determined that temperature did not influence the distribution of the gastropod Neritina virginea (Linnaeus, 1758) in their population structure studies.…”

“…Bivalves such as D. striatus and Anomalocardia brasiliana (Gmelin, 1791) represent valuable sources for artisanal fisheries, providing food that is consumed or sold locally (Carstensen et al, 2008). Thus, the study of edible mollusks is of extreme relevance, especially in Rio Grande do Norte, where several species of bivalves are used as human food (Gil et al, 2007;Rodrigues et al, 2010). The present study evaluated the temporal and spatial distribution and density of D. striatus and their correlation with some of the abiotic parameters in their habitat.…”

A Pesca De Moluscos Em Ambientes Intermareais No Oeste Do Estado Do Rio Grande Do Norte, Brasil

“…No Oeste do Rio Grande do Norte, esta espécie é capturada na região estuarina de Areia Branca, Porto do Mangue e Grossos, neste último município encontra-se o estoque mais bem documentado (Rodrigues et al, 2013) e a única associação para o beneficiamento (cozimento para remoção da "carne" dos bivalves) de A. brasiliana da região (Ver Silva et al, 2014). A coleta manual é a principal forma de captura, a qual pode ser auxiliada por pás e os animais selecionados com monoblocos ou peneiras, variando de acordo com a comunidade pesqueira.…”

Brazilian sandy beaches: characteristics, ecosystem services, impacts, knowledge and priorities

“…Species with broad geographic distributions, such as the crustaceans Emerita brasiliensis, Excirolana brasiliensis (PAGLIOSA et al, 1998;CARDOSO, 1999;PETRACCO et al, 2003;CAETANO et al, 2006;EUTRÓPIO et al, 2006), and Ocypode quadrata (TURRA et al, 2005;BLANKENSTEYN, 2006; NEVES; BEMVENUTI, 2006; ARAUJO et al, 2008;SOUZA et al, 2008;MAGALHÃES et al, 2009;POMBO;, the bivalve Anomalocardia brasiliana (ARRUDA-SOARES et al, 1982;NARCHI, 1976;BARREIRA;ARAUJO, 2005;LUZ;BOEHS, 2011;MATTOS;CARDOSO, 2012;RODRIGUES et al, 2013;BELÉM et al, 2013;CORTE et al, 2014, CORTE, 2015CORTE et al 2015), and the polychaetes Scolelepis spp (SANTOS, 1991(SANTOS, , 1994SOUZA, BORZONE, 2000;MACCORD, AMARAL, 2007;LEÃO et al, 2012) were the most studied species.…”