Length-weight relationships for 25 fish species from three coastal lagoons in Southeastern Brazil

Abstract

Summary This work analyzes the relationship between length and weight for 25 fish species belonging to 15 families in three mixohaline/hypersaline coastal lagoons in Southeastern Brazil. The study presents the first estimation of L–WRs for six species (Anchoa tricolor, Brevoortia aurea, Jenynsia multidentata, Ctenogobius boleosoma, Microgobius meeki and Bathygobius soporator) and maximum lengths for four species (Atherinella brasiliensis, Jenynsia multidentata, Poecilia vivipara and Microgobius meeki) that are greater than previously recorded.

Do the shallow‐water habitats of a hypersaline tropical estuary act as nursery grounds for fishes?

“…There are some hypersaline environments along the Brazilian coast for which there are few records of fish ecology although there have been two studies of the Araruama Lagoon, an important hypersaline lagoon: an analysis of the relationship between length and weight in 25 fish species (Franco, Araújo, & Araújo, ) and an analysis of the trophic ecology of six benthivorous fishes (Almeida‐Silva et al., ). The hypersaline estuaries in Northeastern Brazil have been poorly studied.…”

Growth of the silverside Atherinella brasiliensis in a subtropical estuary with some insights concerning the weight-length relationship

“…The weightlength relationship is characterized by positive allometric growth. Concerning parameters of the von Bertalanffy growth curve, asymptotic lengths are estimated between 11.3 and 17 cm and the growth constant ranging between 0.82-0.89 (year -1 ); resulting in longevity estimates of slightly more than three years (Paiva-Filho and Giannini 1990, Haimovici and Velasco 2000, Pessanha and Araújo 2001, Giarrizzo et al 2006, Macieira and Joyeux 2008, Mazzei et al 2011, Freire et al 2012, Costa et al 2013, Franco et al 2013.…”

Length-weight relationships for 35 fish species of the Atlantic Forest, SP/RJ-Brazil

“…Several factors can influence the a and b parameters of length‐weight relationships: body shape, the sampled population, analyzed individuals, narrow length, and fatness of the fish species. Moreover, environment features such as habitat type, geographic region and seasonality as well as natural variations of each species such as sex and sexual maturity are additional factors that can lead to differences in these parameters (Bagenal & Tesch, ; Carlender, ; Froese, ; Franco, Araújo, & Araújo, ; Nobile et al., ; Wootton, ). In general, this study provides new information for those less‐studied fish species in the Neotropical region and can serve as a tool and basis for management and conservation of these species.…”