Abstract
Peacock bass Cichla temensis is an important species at the Amazon basin, since commercial, subsistence and recreational fisheries simultaneously exploit it. Cichla temensis is the preferred species by recreational fishers and it has been strongly exploited, mainly at the Negro river, the second largest tributary of the Amazon River. It was used data from experimental fisheries, collected at the middle stretch of Negro river, which were coupled with previously published data on its population dynamics, to run a yield per recruit model and build scenarios of sustainable fisheries. The results showed that the age of the first catch is a key variable to successful management of the peacock bass stocks at this region.
Highlights
The Amazon basin hosts at least four types of fisheries: subsistence, artisanal small-scale, industrialized small‐scale and recreational, which could be discriminated by noticeable characteristics, such as target species, type of vessels, type of fishers and fishing gears (Freitas and Rivas, 2006; Ruffino, 2014)
The results showed that the age of the first catch is a key variable to successful management of the peacock bass stocks at this region
The age of recruitment and the age of the first catch were assumed equal to 1.88 years, since the fish of this species became vulnerable for fishing at the same age they began to live at the adult stock
Summary
The Amazon basin hosts at least four types of fisheries: subsistence, artisanal small-scale, industrialized small‐scale and recreational, which could be discriminated by noticeable characteristics, such as target species, type of vessels, type of fishers and fishing gears (Freitas and Rivas, 2006; Ruffino, 2014). The Cichla species are large piscivorous, can reach around 11 kg and more than 80 cm length (Jepsen et al, 1997; Campos et al, 2015a). 506 506/510 over the basin, with several species inhabiting black waters of Orinoco and Negro river basins (Kullander and Ferreira, 2006), where they are exploited for feeding and recreational proposals (Jepsen et al, 1999; Barthem and Goulding, 2007; Inomata and Freitas, 2015). At the Negro river basin, Cichla temensis is the most attractive species for anglers, due its aggressive behavior and large body size (Holley et al, 2008).
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