02153nab a2200253uuc4500001000800000005001700008008004100025035001200066040001300078041000800091100004100099245011800140520127700258650001101535650002401546650001901570650002501589650002401614700003401638700003001672700003301702700003601735773012801771139992120250226085809.0150216e20141205                    eng    a1399921  ccomduadb  aeng10aSouza, Mario J. F. Thomé4auteaut10aPeacock bass mortality associated with catch-and-release sport fishing in the Negro river, Amazonas state, Brazil3 aSport fishing for peacock bass Cichla spp. in the Brazilian Amazon has increased in popularity and attracts anglers who generate significant economic benefits in rural regions. The sustainability of this fishery is partly dependent on the survival of fish caught through catch-and-release fishing. The objective of this work was to investigate, hooking mortality of Cichla spp., including speckled peacock bass (C. temensis Humbolt), butterfly peacock bass (C. orinocensis Humbolt), and popoca peacock bass (C. monoculus Agassiz) in the basin of the Negro River, the largest tributary of the Amazon River. Fish were caught at two different sites using artificial lures, transported to pens anchored in the river and monitored for 72 hours. A total of 162 individual peacock bass were captured and hooking mortality (mean % ± 95% confidence intervals) was calculated. Mean mortality was 3.5% (± 5.0), 2.3% (± 3.5) and 5.2% (± 10.2) for speckled peacock bass, butterfly peacock bass, and popoca peacock bass, respectively. Lengths of captured fish ranged from 26 to 79 cm (standard length), however, only fish under 42 cm died. This research suggests that catch-and-release sport fishing of peacock bass does not result in substantial mortality in the Negro River basin.  aCichla  aMortalidad de peces  aPesca - Brasil  aRio Negro (Amazonas)  aPesca de agua dulce10aMaceina, Michael J.4auteaut10aForsberg, Bruce4auteaut10aMarshall, Bruce G.4auteaut10aCarvalho, Álvaro L.4auteaut0 tActa Amazonica (Manaus)gVolumen 44, Número 04, Diciembre 2014, p. 527-532w(CO-MdUADB)198142x0044-5967088128o01000057