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Length-weight relationships of fish from Madeira River, Brazilian Amazon, before the construction of hydropower plants

2015; Wiley; Volume: 31; Issue: 5 Linguagem: Inglês

10.1111/jai.12819

1439-0426

Ariana Cella‐Ribeiro, Marília Hauser, Lorena D. Nogueira, Carolina Rodrigues da Costa Dória, Gislene Torrente‐Vilara,

Fish biology, ecology, and behavior

Length–weight relationships (LWRs) are presented for 112 freshwater fish species representing 23 families and five orders captured in the Madeira River, the largest white-water river tributary of the Amazon River. The allometry coefficient (b) of the LWR (Wt = aSLb) ranged from 2.446 to 3.856 with a median value of 3.102. Eight new LWR records are presented for Amazonian species as information for FishBase. LWRs in the present study provide historical data on a and b coefficients prior to the damming of the Madeira River in November 2011, allowing comparison estimates of predicted future population parameters as influenced by human intervention.