Abstract:The effect of catch-and-release fishing on the survival of peacock bass (Cichla spp.) was evaluated by comparing two types of artificial bait (jig and shallow-diver plugs) and two types of post-catch confinement. Two experiments were conducted during the periods January-February and October-November 2012 in the Unini River, a right-bank tributary of the Negro River. In total, 191 peacock bass were captured. Both groups of fish were subjected to experimental confinement (collective and individual) for three day… Show more
“…(ALBANO et al 2014). Em estudos voltados a testar o efeito do pesque-solte sobre a sobrevivência do tucunaré na região do Médio Rio Negro, tem-se observado baixas taxas de mortalidade desses animais após soltura (HOLLEY et al, 2008;THOMÉ-SOUZA et al, 2014;BARROCO et al, 2018).…”
Na Amazônia, o município de Barcelos tem se destacado como um dos principais destinos para quem pratica a pesca esportiva. O objetivo do presente estudo foi descrever o perfil socioeconômico e o conhecimento sobre a legislação de pesca esportiva de pilotos-guia da Bacia do Médio Rio Negro, Amazonas. Foram realizadas entrevistas semiestruturadas, utilizando questionários com orientadores (N= 55), no período de janeiro de 2016 a maio de 2019. A média de idade dos orientadores foi de 42 anos, com faixa etária de 40 a 50 anos (39,59%), casados, com ensino fundamental incompleto (40,00%). A principal forma de contrato de serviço foi por temporada (56,00%). Cerca de 56,36% dos guias informaram que não tinham conhecimento da legislação vigente sobre pesca esportiva, a maioria deles nunca havia testemunhado nenhuma abordagem de supervisão (61,82%) pelas autoridades. Para a maioria, a pesca esportiva é uma atividade que causa impactos (49,09%), principalmente para peixes, resultando em lesões (90,91%). Os guias pilotos mostraram baixo nível de conhecimento sobre as leis regulatórias da pesca esportiva, exigindo maior atenção por parte das autoridades, a fim de facilitar o acesso das informações aos guias.
“…(ALBANO et al 2014). Em estudos voltados a testar o efeito do pesque-solte sobre a sobrevivência do tucunaré na região do Médio Rio Negro, tem-se observado baixas taxas de mortalidade desses animais após soltura (HOLLEY et al, 2008;THOMÉ-SOUZA et al, 2014;BARROCO et al, 2018).…”
Na Amazônia, o município de Barcelos tem se destacado como um dos principais destinos para quem pratica a pesca esportiva. O objetivo do presente estudo foi descrever o perfil socioeconômico e o conhecimento sobre a legislação de pesca esportiva de pilotos-guia da Bacia do Médio Rio Negro, Amazonas. Foram realizadas entrevistas semiestruturadas, utilizando questionários com orientadores (N= 55), no período de janeiro de 2016 a maio de 2019. A média de idade dos orientadores foi de 42 anos, com faixa etária de 40 a 50 anos (39,59%), casados, com ensino fundamental incompleto (40,00%). A principal forma de contrato de serviço foi por temporada (56,00%). Cerca de 56,36% dos guias informaram que não tinham conhecimento da legislação vigente sobre pesca esportiva, a maioria deles nunca havia testemunhado nenhuma abordagem de supervisão (61,82%) pelas autoridades. Para a maioria, a pesca esportiva é uma atividade que causa impactos (49,09%), principalmente para peixes, resultando em lesões (90,91%). Os guias pilotos mostraram baixo nível de conhecimento sobre as leis regulatórias da pesca esportiva, exigindo maior atenção por parte das autoridades, a fim de facilitar o acesso das informações aos guias.
“…Sport-fishing is a community-based recreational activity that provides job opportunities and income in North America, several European countries and also in Brazil (Howells and Garrett, 1992;Shafland, 1999a;Cooke and Suski, 2004;Holley et al, 2008;Barroco et al, 2018;Golani et al, 2019). In Texas and Florida (North America) alone, sport-fishing is an activity participated by some 36 million anglers that collectively supports the fisheries and tourism industry with an annual revenue in exceed of USD 2.4 billion (Courtenay et al, 1973;Shafland and Stanford, 1999).…”
Section: Sport-fishingmentioning
confidence: 99%
“…In Texas and Florida (North America) alone, sport-fishing is an activity participated by some 36 million anglers that collectively supports the fisheries and tourism industry with an annual revenue in exceed of USD 2.4 billion (Courtenay et al, 1973;Shafland and Stanford, 1999). In Brazil, sport-fishing has provided job opportunities to about 250,000 citizens and produced a turnover of USD 500 million (Barroco et al, 2018). Similarly, 16 million anglers contributed to over 150,000 metric tonnes of catch in Europe (Cowx, 2015).…”
Section: Sport-fishingmentioning
confidence: 99%
“…Perhaps the fast moving and aggressive nature of Cichla as claimed by the anglers in Tasik Telabak (Malaysia) are reasons for its translocation world wide (Figure 3). In addition, C. ocellaris is preferred by anglers because it is less vulnerable (<5 % mortality) to catch-and-release fishing (Figure 3; Shafland, 1999b;Shafland and Stanford, 1999;Cooke and Suski, 2004;Holley et al, 2008;Rahim et al, 2013;Barroco et al, 2018;Khaleel et al, 2020). In fact, only 97 fish were killed by inexperience hook release where AE2 % of the C. ocellaris deaths occurred after lethal hook puncture to the gills (Thom e-Souza et al, Bower et al, 2016).…”
Peacock bass (Cichla spp.) originates from the Neotropical environments of Brazil and Venezuela but, through trade and smuggling for aquarium keeping, sport fishing and aquaculture, it is now an emerging concern. Yet, less is known for Cichla spp. distribution and its ability to invade new environments. Aimed to communicate on Cichla spp. ecology, biology and introduction schemes from Scopus, Web of Science, Google Scholar and also National Centre for Biotechnology Information, this review also contains management strategies for invading fish species. While Cichla spp. can displace native fish populations, this concern is explained using ecological functions, physiological demands, direct and secondary invasion, disease tolerance and parasite spillover. Briefly, Cichla spp. has rapid embryogenesis (72 h) and matures in short periods (11-12 months), giving it an advantage to colonize new environments. With a large appetite, this true piscivore gains territorial control over water bodies by making it their feeding and nursery grounds. Perceived as an emerging concern after becoming introduced, seal-off or sport fishing were used to manage Cichla spp. but, this practice is not sustainable for the entire ecosystem. Hence, we recommend bottom-up management that involves community participation because they interact with the fish and have knowledge about their environment.
“…The dominant type of capture is the recreational fishery following a catch-and-release attitude producing a low mortality rate (Barroco, Freitas, & Lima, 2017). fisheries are of low intensity.…”
The aim of this study was to analyse the trophic ecology of speckled peacock bass Cichla temensis inhabiting two tributaries of the middle Negro River, the Aracá River and the Demeni River. Using an analysis of stomach contents and stable isotope composition (δ15N, δ13C) of scales, we describe the diet and evaluate the trophic position of subadult and adult individuals. We then test whether diet shifts and trophic positions occurred among successive size classes and among sample locations. The stomach content analysis confirmed the piscivorous feeding habit of the species and showed that the speckled peacock bass preyed on a variety species belonging to different trophic guilds. The length of the ingested prey increased with the size of the speckled peacock bass. Diet composition and trophic position were not different among size classes. δ13C values yielded significant shifts among the size classes: larger individuals displayed higher δ13C values than smaller individuals. Trophic position varied between locations, with lowest values observed in fish from the Aracá River. This study demonstrated that diet of C. temensis may vary according to the size of the fish, even at the subadult or adult stages, and according to the river/locality, even within a same basin. We then suggest that further studies take into account local availability of food resources to better explore C. temensis diet and tropic ecology.
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