Beneficios económicos de la cacería de lagarto (Caiman yacaré) en la Amazonía boliviana

Méndez, Dennis; Coca, C.; Saavedra, Lucas; Peredo, Roxana Salas; Damme, Paul A. Van

doi:10.4000/books.irdeditions.18732

Cited by 1 publication

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“…In most Amazon countries these smaller species occupy now the larger part of the catches (Garcia et al 2008;Doria et al 2018). In Bolivia, improved survey efforts during the last decade showed a clear trend towards increased landings of low-value mediumsized migratory species, mainly small characids and curimatids, supplying markets in the lowlands (Coca Méndez et al 2012, Argote Soliz et al 2017. Many of these species occupy lower positions in the food web than the traditional species, with an exception being Calophysus macropterus, or blanquillo, a short-lived siluriform species with omnivorous to scavenging habits (Pérez & Fabré 2009, Valente-Aguiar et al 2020.…”

Section: Introductionmentioning

confidence: 99%

Fisheries of the scavenger species Calophysus macropterus: a case study in the Bolivian Amazon

Damme¹

2023

NHAC

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Bolivian Amazon small-scale fisheries traditionally focus on large migratory fish species. However, in the last decade there has been a trend of increased landings of low-value medium-sized migratory species, such as blanquillo, Calophysus macropterus. This scavenger species is captured using chicken and bovine waste as bait, and occasionally carcasses from wild species. This study explores the boom of this specialized fishery in Puerto Villarroel, a small harbor on the Ichilo River, using a combination of historical landing data, fisheries statistics obtained by participatory fisheries monitoring, fish market studies and interviews with local key stakeholders. Additionally, mercury contamination of fish meat was evaluated. Blanquillo fishing started in 2008 and boomed around 2015, representing 30% of landings, after which it decreased to fluctuate around 15%. The capture and landing data suggest that this species is mainly captured by non- organized fishers. The market studies conducted between 2015 and 2018 in Cochabamba city and in lowland middle towns showed that on average more than 20% of consumption of Amazon river fish consisted of blanquillo meat. Mercury is accumulated in the muscle tissue at concentrations near the official limit established by WHO for human consumption, whereas in 15% of fish the concentrations exceeded this limit. The paper pieces together the evolution of the blanquillo fishery in Bolivia, and looks at different aspects, including the diversity of fishers involved, possible impacts on other vulnerable species and public health, and potential impacts and effectiveness of different public policy approaches. In conclusion, the present study shows there is an overall need for more consistent and inclusive fisheries regulations in the Bolivian Amazon, as a way to protect aquatic fauna, avoid environmental contamination and secure human health.

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Section: Introductionmentioning

confidence: 99%

Fisheries of the scavenger species Calophysus macropterus: a case study in the Bolivian Amazon

Damme¹

2023

NHAC

View full text Add to dashboard Cite

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Beneficios económicos de la cacería de lagarto (Caiman yacaré) en la Amazonía boliviana

Abstract: Águas do iténez ou guaporé. Recursos aquáticos de um patrimônio binacional (Bolívia e Brasil)

Cited by 1 publication

References 15 publications

Fisheries of the scavenger species Calophysus macropterus: a case study in the Bolivian Amazon

Fisheries of the scavenger species Calophysus macropterus: a case study in the Bolivian Amazon

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