Fishery Yield
Mostrando 1-11 de 11 artigos, teses e dissertações.
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1. Residue-Based CaO Heterogeneous Catalysts from Crab and Mollusk Shells for FAME Production Via Transesterification
The production of fatty acid methyl esther (FAME) via transesterification was studied, assessing the influence of CaO heterogeneous catalysts obtained from four different fishery residues: sururu, crab, clam and mussel. Characterization and properties of the residues were obtained via thermogravimetric analysis, X-ray diffraction, X-ray fluorescence, Fourier
J. Braz. Chem. Soc.. Publicado em: 2020-04
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2. Dinâmica populacional da matrinxã Brycon amazonicus (Characidae) na Amazônia Central
The matrinxã, Brycon amazonicus (Spix & Agassiz, 1829) is one of the most important fishery resources of the Amazonas state. Its population dynamics in Central Amazon was analyzed based on total landing and biometry data registered in the main landing port of Manaus, between 1994 and 2002. Growth and mortality rates were estimated separately for the rivers
Zoologia (Curitiba). Publicado em: 2009-06
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3. Population structure, growth and fishery yield of Leporinus acutidens (Valenciennes, 1837) (Teleostei: Anostomidae) in Yacyretá Reservoir (Argentina)
A população de Leporinus acutidens (Valenciennes, 1837), a montante da barragem de Yacyretá (Alto Paraná, Argentina) foi analisada em relação à idade, crescimento, condição nutricional, mortalidade e rendimento da pesca, sendo realizadas comparações na estrutura etária, condição nutricional e relação peso-comprimento nos períodos pré (1990-
Neotropical Ichthyology. Publicado em: 2008-03
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4. A pesca de camarões-de-profundidade (aristeidae) na região sudeste-sul do Brasil: avaliação da dinâmica de biomassa como ferramenta para gestão
The aristeid shrimp fishery started in Brazil in the end of 2002 after the discovery of profitable concentrations of these resources by chartered foreign trawling vessels. The operation of these vessels was stimulated by the Federal Government as a part of a plan of ocupation and exploration of Brazilian EEZ. The current work presents a study about the dynam
Publicado em: 2008
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5. Padronização do índice de abundância e avaliação do estoque de bonito listrado, (Katsuwonus pelamis Linnaeus, 1758), do Atlântico Ocidental.
In this paper data on catch, fishing effort and landings from the Brazilian baitboat fishery, together with information on vessel characteristics were analyzed aiming to: (a) describe the fishery and characteristics of the fishing fleet, analyze catch composition and spatial and temporal distribution of catches, fishing effort and catch rates of skipjack (Ka
Publicado em: 2006
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6. "Dinâmica populacional de raias demersais dos gêneros Atlantoraja e Rioraja (Elasmobranchii, Rajidae) da costa sudeste e sul do Brasil" / Populational dymanics of skates genera Atlantorala and Rioraja (Elasmosbranchii, Rajidae) of Southeastern and Southern Coastal of Brazil
The proportions of the skates Rioraja agassizi, Atlantoraja cyclophora, A. platana and A. castelnaui landed by commercial fishing boats were analyzed. Data were collected from 358 hauls of 20 trips made by 11 double-otter trawlers and pair-trawlers. Fisheries were carried out between 10 and 430 m deep and from 23° S (State of Rio de Janeiro) to 31° S (Stat
Publicado em: 2006
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7. Conhecimento ecológico, regras de uso e manejo local dos recursos naturais na pesca do alto-médio São Francisco, MG.
A exploração da natureza por comunidades locais se fundamenta num conjunto de conhecimentos, práticas e crenças humanas para o uso dos recursos naturais, fundado nas tradições culturais e na experimentação empírica do ambiente próximo. Pescadores artesanais comerciais do trecho mineiro do Alto-Médio São Francisco, alvos deste estudo, dependem dir
Publicado em: 2003
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8. Idade, crescimento e avaliaÃÃo de estoque da serra Scomberomorus brasiliensis (Teleostei: Scombridae), na plataforma continental do Nordeste do Brasil
The spanish mackerel, Scomberomorus brasiliensis, represents an important fishery resource in Northeast Brazil. Aiming to analyze the age structure composition of the artesanal fisheries catches and to assess the stocks in the area, 6148 specimens were sampled at the continental shelf between 1998 and 2001. This activity was carried out in the extent of the
Publicado em: 2002
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9. A pesca artesanal no reservatorio Billings (São Paulo)
Billings reservoir is the largest water body in the Metropolitan Region of São Paulo. Its building started in 1925 in order to supply the city of São Paulo with electricity. During many years it presented low environmental quality due to the reception of organic sewage from the Metropolitan Region. Nowadays, it is used also as an outlet regulatory system f
Publicado em: 1997
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10. Ecologia e pesca da piramutaba (Brachyplatystoma vaillantii)
The catfish piramutaba (Bracyplatystoma vaillantii, Pimelodidae) is the most important export fish of the Amazon basin and estuary and was the third ranked export fish of Brazil in 1987. There are two kind of fisheries exploiting this species: traditional and industrial. The traditional fishery use gillnet with mesh 14- 22 cm. It is responsible for about 30%
Publicado em: 1990
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11. Why fisheries collapse and what to do about it.
With the collapse of fisheries in many parts of the world causing widespread economic harm, attention is focused on a possible cause and remedy of fishery collapse. Economic theory for managing a renewable resource, such as a fishery, leads to an ecologically unstable equilibrium as difficult to maintain as balancing a marble on top of a dome. A fishery shou