Length-weight relationship of Hoplias aff. malabaricus (Bloch, 1794) in a subtropical wetland

Corrêa, Fabiano; Huckembeck, Sônia; Canziani, Gonzalo Velasco

doi:10.1590/1519-6984.05015

Cited by 1 publication

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“…This difference can be explained, since the estimate available in FishBase is performed using the total length and based on all LWR estimates for species of similar body shape (Froese and Pauly, 2021;Froese et al, 2014). These differences were also indicated for teleost fish of the Negro River Basin (Olentino et al, 2023;Lubich et al, 2020Lubich et al, , 2021Olentino et al, 2021;Barros et al, 2018;Corrêa et al, 2016;Quara de Carvalho Santos et al, 2012). The studies by Duncan et al (2016) and Freire (2015), which provide information on the a and b parameters for P. wallacei, do not show the confidence intervals, and comparison is not possible, however the integer values were close.…”

Section: Discussionmentioning

confidence: 99%

Length-weight relationship for Potamotrygon wallacei (Carvalho, Rosa and Araújo, 2016) caught in the middle Negro River, Barcelos, Brazilian Amazon

et al. 2024

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This research aimed to estimate the length-weight ratio (LWR) of the stingray Potamotrygon wallacei, known locally as the cururu, which was caught in streams and lakes in the middle Negro River region, Amazonas, Brazil. The stingrays were captured during the night (from 11 pm to 1 am) near the shores of streams and lakes, through active search using wooden canoes, head lanterns and scoop nets. The samplings were carried out in November 2017 (5 days), February (8 days), March (3 days) and April (2 days) of 2018, totaling 18 days of sampling. The total fresh weight was measured to 0.1 g of accuracy and the disc width to 0.1 cm accuracy. The parameters a and b of the equation W=a.DWb were estimated. This study provides new maximum length data for the cururu stingray.

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