Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 3
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
Drastic changes in the amphipod fauna (Crustacea) of Dutch inland waters during the last 25 years Naturalis
Pinkster, Sjouk; Scheepmaker, Maarten; Platvoet, Dirk; Broodbakker, Nico.
After the introduction of Gammarus tigrinus in The Netherlands some 25 years ago and of other recently invading amphipods (Crangonyx pseudogracilis and Corophium curvispinum) the native species decreased, the invaders increased. The success of these invaders and its impact on the local amphipod fauna is discussed. Electrophoretic tests give evidence that a second invasion of Gammarus tigrinus, this time from Germany, is taking place. Some predictions about future developments are made.
Tipo: Article / Letter to the editor Palavras-chave: Netherlands; Amphipods; Changing distributions; Allozyme electrophoresis; Introduced species; Environmental changes.
Ano: 1992 URL: http://www.repository.naturalis.nl/record/504556
Imagem não selecionada

Imprime registro no formato completo
Genetic structure of the sea-bob shrimp (Xiphopenaeus kroyeri Heller, 1862; Decapoda, Penaeidae) along the Brazilian southeastern coast Genet. Mol. Biol.
Voloch,Carolina Moreira; Solé-Cava,Antonio Mateo.
The sea-bob shrimp, Xiphopenaeus kroyeri, is one of the most important economic marine resources along the entire Brazilian coast. Nevertheless, despite its economic importance, no studies have examined the population genetics of this species. In this paper, we used ten allozyme loci to study the pattern of genetic structuring in X. kroyeri along the southeastern Brazilian coast. Seven of the ten analyzed loci were polymorphic, yielding observed heterozygosity values higher than those reported for other penaeid shrimps. The population from São Paulo was significantly different from the other two populations (Rio de Janeiro and Espírito Santo), which, in turn, seem to form a single panmitic unit. Therefore, our results clearly indicate that conservation...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Population genetics; Allozyme electrophoresis; Fisheries stocks; Crustacea.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572005000200013
Imagem não selecionada

Imprime registro no formato completo
Taxonomic status of two morphotypes of Coryphaena hippurus (Perciformes: Coryphaenidae) Neotropical Ichthyology
Bonner,Alan; Duarte,Michelle R.; Souza,Rosa C. C. L.; Monteiro-Neto,Cassiano; Silva,Edson P..
ABSTRACT Two Coryphaena hippurus morphotypes (dourado and palombeta) are found along the Brazilian coast and are considered by Rio de Janeiro’s fisherman and fishmongers as two different species. Furthermore, these morphotypes are commercialized under different values and suffer different fishing pressure. Therefore, a definition of their taxonomic status is an important economic and biological matter. In order to investigate this problem, allozyme electrophoresis method was undertaken for seventeen loci on 117 individuals of C. hippurus sampled at Cabo Frio/RJ (Brazil). The data indicate homogeneity between the morphotypes gene pools. Nevertheless, differences were found for genetic variation among dourado and palombeta, especially due to alcohol...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Alcohol dehydrogenase; Allozyme electrophoresis; Biochemical systematics; Fishery resources; Genetic variation.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252017000100205
Registros recuperados: 3
Primeira ... 1 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional