Situação da pesca de camarões na Plataforma Continental Amazônica

Aragão, José Augusto Negreiros; Cintra, Israel Hidenburgo Aniceto; Silva, Kátia Cristina de Araújo

doi:10.2312/actafish.2015.3.2.61-76

Cited by 4 publications

(8 citation statements)

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“…The study area comprises the Amazon continental shelf, the northern region of Brazil, where the industrial trawling fleet of the brown-shrimp (P. subtilis) operates. The fishery area extends over the Brazilian continental shelf, from the marine projection of the mouth of the Oiapoque River (on the border between the French Guiana and Brazil) to the mouth of the Parnaíba River (on the border between Piauí and Maranhão states, Brazil), with higher fishery intensity off the states of Amapá and Pará (Figure 1; Aragão et al, 2015a). Mean depths where fisheries were carried out varied from 40 m to over 100 m, with a predominance of muddy, sandy and gravelly substrates (Aragão et al, 2015a;Isaac and Ferrari, 2017).…”

Section: Methodology Study Areamentioning

confidence: 99%

“…The industrial brown-shrimp fishery on the Amazon Continental Shelf is annually performed by approximately 101 trawlers, primarily steel vessels, with a mean length of 20 m, engine power varying from 235 to 470 Hp, onboard icing system, and average holding capacity of 20 tons per fishing trip. Vessels also have an onboard navigation system, echo sounder, and radio for communication (Frédou et al, 2009;Paiva et al, 2009;Aragão et al, 2015a;Bentes et al, 2017).…”

Section: Brown-shrimp Fishery On the Northern Coast Of Brazilmentioning

confidence: 99%

“…The industrial fleet captures shrimps using double trawl nets with accessories (tangons) for hoisting the nets after each trawl (Aragão et al, 2001(Aragão et al, , 2015a. Yield is higher in the first half of the year, with P. subtilis being the predominant species in the catch.…”

Section: Brown-shrimp Fishery On the Northern Coast Of Brazilmentioning

confidence: 99%

“…However, it is evident that the shrimp catch in this region has been decreasing over time, and the reasons are still unclear. It is due to the fact that stock assessment have never acknowledged this species as overexploited, and would theoretically still support an increased effort (Isaac et al, 1992;Aragão et al, 2015a;Araújo, 2021;Peixoto et al, 2021). However, the number of trawlers working with this type of activity has decreased for approximately 70 boats (Aragão et al, 2015a) and economic or institutional reasons are still to be further, but literature on this topic is scarce.…”

Section: Brown-shrimp Fishery On the Northern Coast Of Brazilmentioning

confidence: 99%

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Multidimensional Evaluation of Brown Shrimp Trawling Fisheries on the Amazon Continental Shelf

et al. 2022

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Brown shrimp (Penaeus subtilis) trawling in the northern coastal waters of Brazil is an industrial fishing activity with a share in the international market and an important resource in the fishery market. Due to the scarcity of updated information on this practice and owing to its complexity, it is difficult to have a measurement of all dimensions of the development of this fishery, whether they are ecological, economic, or social-institutional. The present paper uses an assessment tool focused on data-poor fishery systems, the Fishery Performance Indicators (FPIs), to assess the multidimensional conditions of this fishery. The indicators were assessed between 2019 and 2020, and the metrics were based on public official data, scientific publications, in loco consultations with production agents, and databases of research projects. Results showed that the critical points of this activity are primarily related to the ecological indicator (1.75), which obtained a lower score compared to other fisheries assessed using the same methodology. This is due to its low selectivity, which results in high by-catch volumes and discards. The limited participation of productive chain actors also restrains the efficacy of management measures, which hampers successful resource management. This issue maximizes other setbacks throughout the productive chain, such as economic and social factors.

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Section: Methodology Study Areamentioning

confidence: 99%

Section: Brown-shrimp Fishery On the Northern Coast Of Brazilmentioning

confidence: 99%

Section: Brown-shrimp Fishery On the Northern Coast Of Brazilmentioning

confidence: 99%

Section: Brown-shrimp Fishery On the Northern Coast Of Brazilmentioning

confidence: 99%

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Multidimensional Evaluation of Brown Shrimp Trawling Fisheries on the Amazon Continental Shelf

et al. 2022

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“…In marine shrimp trawling, two abundance indices are commonly used separately or simultaneously: Catch per Unit Effort (CPUE) and Catch per Unit of Swept Area (CPUA) (Asano-Filho et al, 2003;Furtado-Júnior et al, 2003;Melo et al, 2005;Perez and Defeo, 2005;Loebmann and Vieira, 2006;Pezzuto et al, 2008;Petrere-Junior et al, 2010;Valentini et al, 2012;Mendonça et al, 2013;Aragão et al, 2015;Silva-Júnior et al, 2019;Carvalho et al, 2020;Selvam et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

The Influence of the Coastal Current on the Estimation of Relative Abundance Indices in Small-Scale Shrimp Fishery

et al. 2021

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The aim of this scientific note was to evaluate the influence of the coastal current on the estimation of relative abundance indices for small-scale marine shrimp trawling to indicate the best relative abundance index to be used for stock assessment and conservation. Georeferenced experimental trawls were carried out with standardized equipment and capture time on the coast of Rio Grande do Norte, northeastern Brazil. Drags followed convergent and divergent orientations in relation to the flow of the local coastal current. The results showed that the direction of the coastal current flow directly influences the distances and drag shifts, generating variations in the sampling effort and, consequently, bias when using Catch per Unit Effort (CPUE) as a relative abundance index. Conversely, the adoption of Catch per Unit of Swept Area (CPUA) as an index of relative abundance for shrimp trawling becomes more suitable since the variations in the distances of trawl shifts are perceptible through this index.

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Sobre a carcinofauna acompanhante na pesca industrial do camarão-rosa na plataforma continental Amazônica

Cintra

Paiva

Silva

et al. 2020

RSD

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This work was carried out with the objective of quantifying the carcino-group present in the bycatch of the southern brown shrimp industrial fishery on the Amazon Continental Shelf by season, period of the day and depth range. The study was carried out from 152 records of fishing operations or bottom trawls, 72 in the rainy season (December to May) and 80 in the dry season (June to November), with an average duration of 3.5 ± 1.5 hours, totaling 532 hours of trawling, in the months of July and September 2010 and March and April 2011, between the states of Pará and Amapá. Initially, the bycatch was classified into five groups: fish, southern brown shrimp, crustaceans, mollusks and others. After that, the crustaceans were screened: crabs, portunids, shrimps, lobsters and stomatopods, where each group was quantified in weight and number of specimens. From the samples collected during the study period, we observed a southern brown shrimp /bycatch ratio of 1:3 in the rainy season, and of 1:30 in the dry season. Carcino-group differed significantly between the seasons and the depth range, but not along the day. The ratio between the amount (kg) of captured southern brown shrimp and carcino-group bycatch oscillated greatly, with the average value of 1:1. In industrial fisheries for southern brown shrimp on the northern coast of Brazil, the southern brown shrimp/carcino-group bycatch ratio is influenced by the season and depth range, and is less harmful to the biodiversity in the first semester of each year.

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Situação da pesca de camarões na Plataforma Continental Amazônica

Cited by 4 publications

References 0 publications

Multidimensional Evaluation of Brown Shrimp Trawling Fisheries on the Amazon Continental Shelf

Multidimensional Evaluation of Brown Shrimp Trawling Fisheries on the Amazon Continental Shelf

The Influence of the Coastal Current on the Estimation of Relative Abundance Indices in Small-Scale Shrimp Fishery

Sobre a carcinofauna acompanhante na pesca industrial do camarão-rosa na plataforma continental Amazônica

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