Length-Weight Relationships for Fish Fauna from Waterbodies in the Upper Tapajós River Basin of Palito Mountain Ridge, Brazilian Amazon Region

Abstract

Length-weight relationships (LWR) of 14 fish species were estimated from Palito Mountain ridge, upper Tapajós river basin, Brazilian Amazon region. This study represents the first LWR to the small characid Hemigrammus marginatus, and additionally provides new maximum record of length and weight for three species.

Length-weight relationship in ten fish species from the Nhamundá River, the Amazon Basin, Brazil

“…The Amazon Basin has the largest fish diversity on Earth (Albert and Reis 2011), but there are few studies concerning the fish LWR in this region (Freitas et al 2014;Schmid et al 2015). Due the high environmental heterogeneity of the Amazon Basin (Junk and Furch 1993), the wide-ranged species have to improve different life strategies, which may reflect variances in the biological parameters, such as those obtained from LWR studies.…”

Length-weight relationships of six fish species from Tapajós River, Eastern Amazon, Brazil

“…Despite the high fish diversity in the Amazon Basin rivers, few LWR studies have been conducted in the area (e.g. Giarrizzo et al., ; Rosa, Soares, Albrecht, & Caramaschi, ; Schmid et al., ). Information regarding the LWRs of Amazonian fishes is important for a better understanding of the natural history of a species, since the largest rivers in the regions are under consideration for generating hydro‐electric power, which is going to modify the natural structure of the fish assemblages.…”

Length-weight relationships for seven fish species from Marajó Bay, Amazon estuary, northern Brazil

“…The values of b fell within the expected range of 2.5–3.5, as suggested by Froese (), and overlapped with the Bayesian confidence limits in FishBase (Froese & Pauly, ). For these seven species the length–weight relationships are published for the first time in the scientific literature (Giarrizzo et al., , , ; Joyeux et al., ; Schmid et al., ) as well as in the databases such as FishBase (Froese & Pauly, ).…”

“…Nonetheless, very little is known on the LWRs of most of the South American fish species (e.g. Giarrizzo, Bastos, & Andrade, 2011;Giarrizzo et al, 2006Giarrizzo et al, , 2015Joyeux, Giarrizzo, Macieira, Spach, & Vaske, 2008;Oliveira, Andrade, Piteira, & Giarrizzo, 2013;Ruffino & Isaac, 1995;Schmid et al, 2015;Soares, Santos, Mendes, Barthem, & Montag, 2016).…”