Exploited Stocks
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. Stock assessment of the peacock bass Cichla temensis (Humboldt, 1821), an important fishing resource from the middle Negro river, Amazonas, Brazil
Resumo O tucunaré Cichla temensis é uma importante espécie de peixe da bacia Amazônica, uma vez que esta espécie é simultaneamente explotada pela pesca comercial e de subsistência. Além disso, é preferida pelos pescadores esportivos que atuam na região do rio Negro, o segundo maior afluente do rio Amazonas. Foram usados dados de pescarias experimen
Braz. J. Biol.. Publicado em: 26/09/2019
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2. Morphometric variation in pink shrimp populations at Rio de Janeiro coast (SE Brazil): are they really similar in closer areas?
Abstract:Farfantepenaeus brasiliensis and F. paulensis are the most exploited shrimps of SE-S Brazilian coast. Our aim was to verify if adjacent nursery areas with different environmental condition (Sepetiba and Guanabara bays, SE Brazil) influence on shrimp populations (eg, CPUE) and body shapes. Samplings were carried out during 12 months in those bays ca.
An. Acad. Bras. Ciênc.. Publicado em: 18/03/2019
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3. Reproductive biology of Cetengraulis edentulus (Cuvier, 1829), the major fishery resource in Guanabara Bay, Brazil
Cetengraulis edentulus is a broadely distributed engraulid in Southwest Atlantic, currently accounting for the main fish species commercially exploited at Guanabara Bay, Brazil. This study aimed to extend the knowledge on reproduction of C. edentulus at Guanabara Bay and to test whether some descriptors of reproductive activity, especially the gonadosomatic
Neotrop. ichthyol.. Publicado em: 02/12/2014
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4. Identification and phylogenetic inferences on stocks of sharks affected by the fishing industry off the Northern coast of Brazil
The ongoing decline in abundance and diversity of shark stocks, primarily due to uncontrolled fishery exploitation, is a worldwide problem. An additional problem for the development of conservation and management programmes is the identification of species diversity within a given area, given the morphological similarities among shark species, and the typica
Genetics and Molecular Biology. Publicado em: 01/05/2009
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5. Biologia reprodutiva da tainha Mugil liza Valenciennes e do Parati Mugil curema Valencienns (Actinopterygii, Mugilidae) na Baia de Sepetiba, RJ, Brasil
The reproductive biology of the mullets Mugil curema and Mugil liza was determined mainly by observing gonad development, size at maturation and fecundity. The objective of this study was to learn about the strategies developed by these species to maintain their exploited populations in an increasingly altered system. It was hypothesized that there are diffe
Publicado em: 2009
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6. Population genetic structure of Brazilian shrimp species (Farfantepenaeus sp., F. brasiliensis, F. paulensis and Litopenaeus schmitti: Decapoda: Penaeidae)
Penaeid shrimps are important resources for worldwide fisheries and aquaculture. In the Southwest Atlantic, Farfantepenaeus brasiliensis, F. paulensis, F. subtilis, Farfantepenaeus sp. and Litopenaeus schmitti are among the most important commercially exploited species. Despite their high commercial value, there is little information available on the differe
Genetics and Molecular Biology. Publicado em: 2005-03
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7. A Pesca sobre os Recifes de coral e os ecosistemas adjacentes: estudo de caso do nordeste do Brasil / The fishing activity on coral reefs and adjacent ecosystems. A case study of the Northeast of Brazil
Recifes de coral da costa do Nordeste do Brasil ocupam aproximadamente 3000 km. Muitas espÃcies de alto valor comercial habitam temporariamente ou permanentemente nos recifes e fornecem sustento e emprego para milhares de pessoas. PorÃm, a falta de conhecimento bÃsico como, por exemplo, a estrutura das populaÃÃes dos estoques comercialmente explotados,
Publicado em: 2004
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8. Loss of microsatellite diversity and low effective population size in an overexploited population of New Zealand snapper (Pagrus auratus)
Although the effects of overfishing on species diversity and abundance are well documented, threats to the genetic diversity of marine fish populations have so far been largely neglected. Indeed, there seems to be little cause for concern, as even “collapsed” stocks usually consist of several million individuals, whereas population genetics theory sugges
The National Academy of Sciences.
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9. Cloning and characterization of human immunodeficiency virus type 1 variants diminished in the ability to induce syncytium-independent cytolysis.
The phenomenon of interference was exploited to isolate low-abundance noncytopathic human immunodeficiency virus type 1 (HIV-1) variants from a primary HIV-1 isolate from an asymptomatic HIV-1-seropositive hemophiliac. Successive rounds of virus infection of a cytolysis-susceptible CD4+ cell line and isolation of surviving cells resulted in selective amplifi