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Titolo:
GENETIC-VARIATION IN TILAPIA POPULATIONS IN MAN-MADE RESERVOIRS IN SRI-LANKA
Autore:
DESILVA CD;
Indirizzi:
DEAKIN UNIV,SCH AQUAT SCI & NAT RESOURCES MANAGEMENT WARRNAMBOOL VIC 3280 AUSTRALIA
Titolo Testata:
Aquaculture international
fascicolo: 4, volume: 5, anno: 1997,
pagine: 339 - 349
SICI:
0967-6120(1997)5:4<339:GITPIM>2.0.ZU;2-L
Fonte:
ISI
Lingua:
ENG
Soggetto:
INTROGRESSIVE HYBRIDIZATION; DISTANCE; FISH;
Keywords:
ELECTROPHORESIS; GENETIC VARIATION; INTROGRESSION; TILAPIA (OREOCHROMIS MOSSAMBICUS AND OREOCHROMIS-NILOTICUS);
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
27
Recensione:
Indirizzi per estratti:
Citazione:
C.D. Desilva, "GENETIC-VARIATION IN TILAPIA POPULATIONS IN MAN-MADE RESERVOIRS IN SRI-LANKA", Aquaculture international, 5(4), 1997, pp. 339-349

Abstract

An electrophoretic analysis of six populations of Oreochromis mossambicus (Peters) and four populations of O. niloticus (L.) from several rivers and a fish hatchery in Sri Lanka was conducted to determine the degree of mixing within and between stocks. Genetic characterization of the O. mossambicus stocks showed that some degree of mixing with O. niloticus occurred in all but two of the populations examined, while in the case of the O. niloticus, all the populations had some degree ofmixing of O. mossambicus alleles. Genetic identity calculated using Nei's coefficient gave values ranging from 0.9484 to 0.9895 for 0. niloticus populations and 1.0 to 0.9940 for O. mossambicus populations, while interspecies comparisons ranged from 0.7531 to 0.9002. The implications of these results for fisheries management and aquaculture are discussed.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/11/20 alle ore 04:47:04