Dinâmica populacional da matrinxã Brycon amazonicus (Characidae) na Amazônia Central

Filho, Leocy C. dos Santos; Batista, Vandick da Silva

doi:10.1590/s1984-46702009000200001

Cited by 10 publications

(11 citation statements)

References 9 publications

(11 reference statements)

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“…Fish of the family Prochilodontidae, such as jaraquis (Semaprochilodus insignis Jardine & Schomburgk and Semaprochilodus taeniurus Val. ), and curimatás (Prochilodus nigricans Agassiz), belong to a group of neotropical Characiformes of high commercial importance and are intensively fished in the Amazonian region (Santos-Filho & Batista, 2009). These species show high interannual variation in the fish landing statistics and are highly important economically.…”

Section: Introductionmentioning

confidence: 99%

Distribution of economically important fish larvae (Characiformes, Prochilodontidae) in the Central Amazonia, Brazil

et al. 2017

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The spatio‐temporal patterns of three species of Prochilodontidae larvae that are intensely used as fishery resources in Central Amazonia are analysed. Sampling was conducted during 2011 at four stages of the hydrological cycle (flood, high water, falling and low water phases). Sixteen collecting stations were located in different habitats (mouths of lake channels, “barrancos,” sandbars and the main river channel) along the Solimões and Japurá rivers. A total of 4,322 Prochilodontidae larvae were collected during this investigation, with most captures occurring in the Japurá River (76.3% of larvae), while only 23.7% of the samples were caught in the Solimões River. Most captures occurred during rising water, indicating a strong reproductive seasonality in these three species. Rainfall and water level, along with dissolved oxygen, water temperature and electric conductivity, determined the larvae's spatio‐temporal distribution. These results confirm the importance of várzea areas along white water rivers for the conservation, preservation and maintenance of heavily used fishery resources in the Brazilian Central Amazonia.

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“…Based on length and weight data in the central Amazon, curimatá ( Prochilodus nigricans , Prochilodontidae) is now heavily fished (Catarino, Campos, Souza, & Freitas, ). Matrinchã was not considered to be overfished in the central Amazon based on data collected between 1994 and 2002 (Santos‐Filho & Batista, ), although the present dominance of this species in the large Manaus market from aquaculture strongly suggests that overfishing has occurred in a manner similar to that observed for tambaqui. Possible growth overfishing of jaraqui ( Semaprochilodus insignis and Semaprochilodus taeniurus , Prochilodontidae) was recognized as early as the late 1980s (Batista & Isaac, ; Ribeiro & Petrere‐Jr, ) but subsequent seine mesh agreements led to recuperation of stocks.…”

Section: Resultsmentioning

confidence: 99%

Ecosystem-based management of Amazon fisheries and wetlands

et al. 2018

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Infrastructure development and overfishing in the Amazon make it imperative to define adequate scales for the ecosystem‐based management of commercial fisheries and the wetlands on which they depend. We mapped fisheries and fish ecology data from Brazil, Peru, Bolivia and Colombia to an explicit GIS framework of river basins and mainstems. Migratory species account for more than 80% of the known maximum catches of commercial fisheries across the Amazon. Of these migratory species, we nominated six long‐distance migratory fish taxa as flagship species to define the two main commercial fishery regions. The migrations of at least one goliath catfish species define a large‐scale longitudinal link joining the Andes, Amazon Lowlands and Amazon River estuary. Migratory Characiforms demonstrate interbasin wetland connectivity between nutrient‐rich and nutrient‐poor rivers over at least 2 million km2, or about one‐third of the Amazon Basin. We show that flooded forest area is the most important wetland variable explaining regional variations in migratory characiforme biomass as indicated by maximum annual fishery catches. The sustainable management of Amazon fisheries will require transnational cooperation and a paradigm shift from local community management alone to a more integrated approach that considers both rural and urban consumers and challenges, and the realistic life histories of migratory species.

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“…The loss of size classes can trigger stock depletion and should be one alert for the manager. Despite of, for both areas, the catches were concentrated on the classes of adults fish (from 38 to 40 cm standard length -individuals able to reproduce, considering the minimum size at first maturity of 32 cm standard length; Filho & Batista, 2009). …”

Section: Resultsmentioning

confidence: 99%

“…Until now, all studies about this specie were carried out along of the Central Amazon which had reported on age and growth (Barthem & Fabré, 2004), stocks state (Ruffino, 2004) and/or population dynamics (Filho & Batista, 2009). No studies on this species have been carried out in the Madeira River basin, where there is an important resource fishery with an annual production that represented around 8% of the total (Doria et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

<b>Jatuarana fishing dynamics <i>Brycon amazonicus</i> (Spix & Agassiz, 1829) of the upper and middle Madeira River Basin

Ayala

Lima

Hauser

2018

Acta Sci. Biol. Sci.

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ABSTRACT. The jatuarana (Brycon amazonicus), is an important species for the Madeira River commercial fisheries. The paper aims to characterize the jatuarana fishing dynamics in the middle Madeira River and test whether there are differences dowstreams and upstreams the Teotônio waterfall. Commercial fisheries landings were monitored daily at 15 ports or riverine communities along that stretch, using semistructured interviews with fishermen. With data from the fishing monitoring program of UHEs Santo Antônio and Jirau we analysed: the yield, catch per unit effort (CPUE), length structure, locations and fishing gear used, between 2009 to 2011.The fishing yield of this species was temporaly analyzed with data from the Fishermen Colony of Porto Velho city (Rondônia state, Brazil), between 1990 to 2012. The yield and the CPUE showed significant differences by area and locations and the capture of the species was carried out primarily in the channel river and banks river through gillnets. In addition, the samples collected in the upstream area have higher distribution and modal lengths than from those collected downstream. These results suggest that the areas require distinct management measures.

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“…However, as the annual temperature variation in tropical regions is small, it was believed that it would not be possible to identify growth marks in calcified structures (Fonteles Filho, 2011) and, consequently, that this method could not be used to determine age in tropical fish species. For this reason, until recently, growth parameters in these regions were generally estimated indirectly from lengthfrequency data (Petrere Jr., 1983;Isaac & Ruffino, 1996;Ruffino & Isaac, 1999;Santos Filho & Batista, 2009;Bevilaqua & Soares, 2010;Campos & Freitas, 2010;Prestes et al, 2010). However, recently Fabré & Saint-Paul (1998) noted that flooded areas in tropical regions have sufficient seasonal change in water level to induce the appearance of growth checks in calcified structures in fishes.…”

Section: Introductionmentioning

confidence: 99%

Growth of the Cichla temensis Humboldt, 1821 (Perciformes: Cichlidae) from the middle rio Negro, Amazonas, Brazil

2015

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This study aimed to estimate age and growth of the peacock bass Cichla temensis from the rio Negro (Brazilian Amazonia) by analyzing scale annuli. Specimens were captured between October 2011 and September 2012 in the main channel of the river and in adjacent lakes in the municipality of Barcelos, AM, Brazil. Six growth checks were identified on the scales of specimens. The annual variation in body condition observed suggests that fat is accumulated during the dry season. Results for the GSI (gonadosomatic index) showed that peak reproduction occurred in the receding-water period, indicating that the fish had energy deficiencies as a result of reproductive activity. RMI (relative marginal increment) analysis revealed that an annulus is formed once a year during the receding-water period. The population parameters estimated were L50 (length at sexual maturity) = 31.11 cm, L∞ (asymptotic length) = 68.05 cm, k (growth coefficient) = 0.20.year-1 and A0.95 (longevity) = 14 years. Our results corroborate the validity of using growth rings in scales as indicators to estimate the age and growth rate of Cichla temensis in the middle rio Negro.

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Dinâmica populacional da matrinxã Brycon amazonicus (Characidae) na Amazônia Central

Cited by 10 publications

References 9 publications

Distribution of economically important fish larvae (Characiformes, Prochilodontidae) in the Central Amazonia, Brazil

Ecosystem-based management of Amazon fisheries and wetlands

<b>Jatuarana fishing dynamics <i>Brycon amazonicus</i> (Spix & Agassiz, 1829) of the upper and middle Madeira River Basin

Growth of the Cichla temensis Humboldt, 1821 (Perciformes: Cichlidae) from the middle rio Negro, Amazonas, Brazil

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