Anchovy stocks (Engraulis anchoita) and larval growth in the SW Atlantic

Castello, Leandro; Castello, Jorge Pablo

doi:10.1016/s0165-7836(02)00014-0

Cited by 39 publications

(33 citation statements)

References 8 publications

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“…In addition, high zooplankton abundances have been described (Sabatini et al 2004). This region is also a very rich fishing ground (Castello & Castello 2003) as well as an area with a high abundance of upper trophic level organisms (Campagna et al 2000).…”

Section: Introductionmentioning

confidence: 99%

Role of plankton communities in seaair variations in pCO2 in the SW Atlantic Ocean

Schloss¹,

Ferreyra²,

Ferrario³

et al. 2007

Mar. Ecol. Prog. Ser.

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The influence of the plankton community structure on carbon dynamics was studied in the surface waters of the Argentinean continental shelf (SW Atlantic Ocean) in summer and fall 2002, 2003 and 2004. The horizontal changes in plankton community respiration (R), net community production (NCP) and gross primary production (GPP) were (1) compared with the difference in the partial pressure of CO 2 (pCO 2 ) between the sea surface and the atmosphere (ΔpCO 2 ), (2) compared with oxygen saturation and (3) related to the microscopic phytoplankton assemblages. This area, which has recently been shown to be a CO 2 sink, had an average surface oxygen saturation of 108.1%, indicating that net photosynthesis could have played a dominant role in the CO 2 dynamics. At most stations, the production:respiration (GPP:R) ratio was greater than 1, indicating that planktonic communities were autotrophic; the average GPP:R ratio for the whole study was 2.99. Phytoplankton biomass (chlorophyll a) and NCP showed an inverse relationship with ΔpCO 2 and a direct relationship with %O 2 saturation when phytoplankton assemblages were dominated by diatoms (30% of the stations). This was not the case when small (≤5 µm) flagellates were the most abundant organisms. Although NCP was mostly positive for both groups of stations (i.e. diatom-dominated or small flagellate-dominated), other physical and biological processes are thought to modify the CO 2 dynamics when small flagellates are the prevailing phytoplankton group.

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Section: Introductionmentioning

confidence: 99%

Role of plankton communities in seaair variations in pCO2 in the SW Atlantic Ocean

Schloss¹,

Ferreyra²,

Ferrario³

et al. 2007

Mar. Ecol. Prog. Ser.

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“…In terms of the number of individuals, we noticed that nearly 71% of the total number of individuals was sampled in spring, although the biomasses of both seasons are nearly 50% of the total weight. This shows that there are more individuals relatively smaller in spring than in autumn, which may indicate a possible reproductive season for at least some of the species (e.g., Araújo & Santos, 1999;Bernardes & Dias, 2000;Robert & Chaves, 2001;Castello & Castello, 2003;Godefroid et al, 2004;Lima & Castello, 2007;Bruno & Muelbert, 2009). As for the biomass, approximately 71% of the total weight was sampled in 1990 although the number of individuals did not differ much between the two years.…”

Section: Discussionmentioning

confidence: 88%

Long-term variation in the ichthyofauna of Flamengo Cove, Ubatuba, São Paulo

Mattox¹,

Gondolo

Cunningham³

2014

Arq. Zool.

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“…Uma espécie de pequeno peixe pelágico vem chamando a atenção de pesquisadores e empresas de pesca nos últimos anos, devido a sua grande abundância em determinadas épocas do ano nas regiões sudeste e sul da costa brasileira, e nível de explotação muito abaixo de seu potencial, além de sua importância como forrageira (Castello & Castello, 2003). A espécie em questão, conhecida popularmente como anchoita (Engraulis anchoita, Engraulididae, Pisces) (Hubbs & Marini, 1935), ocorre principalmente sobre a plataforma continental, desde águas mais rasas que 10 m até aproximadamente 200 m (Bakun & Parrish, 1991) e tolera um amplo espectro de temperatura (8 a 23°C) e salinidade (14 a 35).…”

Section: Introductionunclassified

Uma Estratégia Para O Monitoramento Da Anchoita (Engraulis Anchoita, Engraulididae, Pisces): O Último Estoque De Pequeno Peixe Pelágico Capaz De Sustentar Uma Pesca Comercial De Média Escala Em Águas Brasileiras

COOKE¹,

MADUREIRA²

2012

Atlântica

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RESUMOO estoque bonaerense de Engraulis anchoita distribui-se entre as costas da Argentina, Uruguai e do sul e sudeste do Brasil. Atualmente, vêm chamando a atenção de empresas de pesca brasileiras, pela elevada abundância e nível de explotação muito abaixo de seu potencial. A anchoita é atualmente a única espécie na costa brasileira com potencial significativo de aproveitamento comercial em pescarias de média escala (acima de 30 mil toneladas por ano). Somente os países do Prata pescam este estoque e há grande probabilidade de um aumento da pressão pesqueira sobre esta espécie nos próximos anos, tornando-se um recurso comercial também no Brasil, desde que solucionados os problemas de conservação a bordo e mercado. Devido à importância da anchoita como espécie chave no ecossistema do Atlântico Sul Ocidental, e considerando os recentes colapsos da pesca de estoques de pequenos pelágicos cogenéricos em todo o planeta, há necessidade da elaboração de um plano de manejo, a ser implantado pelo Brasil, o que levaria a um raro caso de um recurso manejado desde o início de sua explotação. Neste trabalho, é descrito o desenho amostral presumidamente mais adequado para uma série de cruzeiros de estimativas acústicas de abundância da anchoita e sugere-se que esta estratégia venha a ser usada para subsidiar futuros planos de manejo desta espécie, que garantam sua sustentabilidade a longo prazo.PALAVRAS CHAVE: desenho de cruzeiro, Engraulis anchoita, estoque bonaerense, plano de manejo, metodologia hidroacústica.ABSTRACT Strategy action to monitor Anchoita (Engraulis anchoita, Engraulididae, Pisces): the last small pelagic fish stock able to support a medium size scale fishery in Brazilian waters. The bonaerence stock of Engraulis anchoita is distributed along the Argentinean and Uruguayan coasts as well as on the south and southeast of Brazilian coast. In Brazil it is attracting the attention of the fishing industry due to its great abundance and exploitation quite below its potential. Nowadays, there are no other species in Brazil with significant potential to sustain a commercial middle scale fishery (above 30 thousand tons/year). Only Argentina and Uruguay are fishing this stock. However, there is a great probability of an increasing pressure to fish this species by the Brazilian fleet, since on board conservation and market problems are solved. Due to the importance of anchoita as a key species in the ecosystem of the Southern Atlantic Ocean and considering the recent collapses in the stock of cogeneric small pelagics all over the world, it becomes necessary to introduce a management plan in Brazil. This would lead to one of the few cases in which exploitation of fishery resources is being managed from the very beginning. In this work, the presumed most adequate strategic survey design is described to estimate anchoita abundance with acoustics, and it is also suggested its use to subsidize future management plans.

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Anchovy stocks (Engraulis anchoita) and larval growth in the SW Atlantic

Cited by 39 publications

References 8 publications

Role of plankton communities in seaair variations in pCO2 in the SW Atlantic Ocean

Role of plankton communities in seaair variations in pCO2 in the SW Atlantic Ocean

Long-term variation in the ichthyofauna of Flamengo Cove, Ubatuba, São Paulo

Uma Estratégia Para O Monitoramento Da Anchoita (Engraulis Anchoita, Engraulididae, Pisces): O Último Estoque De Pequeno Peixe Pelágico Capaz De Sustentar Uma Pesca Comercial De Média Escala Em Águas Brasileiras

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Anchovy stocks (Engraulis anchoita) and larval growth in the SW Atlantic

Cited by 39 publications

References 8 publications

Role of plankton communities in seaair variations in pCO2 in the SW Atlantic Ocean

Role of plankton communities in seaair variations in pCO2 in the SW Atlantic Ocean

Long-term variation in the ichthyofauna of Flamengo Cove, Ubatuba, São Paulo

Uma Estratégia Para O Monitoramento Da Anchoita (Engraulis Anchoita, Engraulididae, Pisces): O Último Estoque De Pequeno Peixe Pelágico Capaz De Sustentar Uma Pesca Comercial De Média Escala Em Águas Brasileiras

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Role of plankton communities in seaair variations in pCO2 in the SW Atlantic Ocean

Role of plankton communities in seaair variations in pCO2 in the SW Atlantic Ocean