Age and growth of the white croaker Micropogonias furnieri (Perciformes: Sciaenidae) in a coastal area of Southeastern Brazilian Bight

Abstract

1Studies on age and growth of fish populations have direct application in fisheries and contribute for policies of conservation. Our aim was update information on the Micropogonias furnieri growth parameters based on sagittae otoliths annulis readings, and we expected that the studied population from Southeast Brazil can reach more longevity than the reported in the available literature. We examined 286 individuals between August-2010 and July-2011 from Ubatuba Bay, SP. The Total Length ranged 200-480 mm. The determined growth parameters were: Males, L ∞ =523.4mm, k = 0.05×year -1 , t 0 = -8.78 year; Females L ∞ = 573.5mm, k = 0.06 × year -1 , t 0 = -7.49 year. The MI and % of edge type evidenced the formation of one ring per year during autumn/winter, coinciding with low temperature and low growth rate. These results differed from those reported for the Vazzoler's Population I (summer), and we detected higher longevity (45-48 years) as compared with the recorded in the available information.Keywords: Coastal fishes, Growth parameters, Longevity, Marginal increment, Ubatuba.Estudos de idade e crescimento de peixes têm aplicação direta na biologia pesqueira e contribuem para medidas de conservação.

Age and reproduction of the southern king croaker Menticirrhus americanus in subtropical South Atlantic environments

“…Moreover, this is a characteristic of species with split spawning that invest a great amount of energy in gonadal development. A similar observation was made by other authors (Santos et al 2017, Maciel et al 2018, Soeth et al 2018. Spatially, in this study, younger individuals were dominant (1-2 years) at P1.…”

“…These species mostly occur in shallow water estuarine habitats (Menezes et al 2003). The sciaenid species range from those with a short life cycle to some that are long-lived (Cardoso & Haimovici 2011, Militelli et al 2012, Haimovici et al 2016, Santos et al 2017) and use multiple spawning as a reproductive strategy (Braun & Fontoura 2004, Carmo-Silva et al 2016.…”

“…The identification of the longevity (A), which corresponds to the time the fish takes to reach 95% of L ∞ (Santos et al 2017), was estimated by the Taylor equation ( 1959):…”

STABLE ISOTOPIC ANALYSIS AND RADIOCARBON DATING OF MICROPOGONIAS FURNIERI OTOLITHS (SCIAENIDAE) FROM SOUTHEASTERN BRAZILIAN COAST: SEASONAL PALAEOENVIRONMENTAL INSIGHT

“…The formation of translucent zones in whitemouth croaker otolith, when observed in transmitted light, occurs in autumn/winter (May-July) in the Ubatuba Bay, in southeastern Brazil (Santos et al 2017). In this study, three readers interpreted the annuli reading.…”

“…The whitemouth croaker is a long-lived species that can live for over 45 years (Santos et al 2017) and reach a maximum size of 71 cm (Nakamura et al 1986;Haimovici and Ignacio 2005). It lives in a maximum water depth of 60 m (Cervig ón 1993), preferring temperatures between 16.5 and 28°C (Kaschner et al 2016) and salinity ranging between 0 and 36 Practical Salinity Unit (PSU) (Franco et al 2018).…”