geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Maintenance of a small anadromous subpopulation of brown trout (Salmo trutta L.) by straying


, : Maintenance of a small anadromous subpopulation of brown trout (Salmo trutta L.) by straying. Freshwater Biology 51(2): 351-358

1. Microsatellite and isozyme loci variation were used to study structure and dynamics of a brown trout (Salmo trutta) population heavily affected by damming. The downstream area accessible for spawning was drastically reduced to a stream 1 km long influenced by regulated discharge.2. Stocking of hatchery-reared juveniles failed and the population is entirely supported by anadromous adults from neighbouring populations.3. Temporal genetic stability is reported here. Some punctual between-river genetic differences are likely because of different contribution from each neighbouring river through years.4. High anadromy-mediated gene flow produces a lack of genetic substructure in the region. The role of anadromous brown trout on maintenance of endangered small populations is emphasised.

US$19.90

DOI: 10.1111/j.1365-2427.2005.01486.x


Other references

Hodgson, D.C., 2008: Hodgkin lymphoma: the follow-up of long-term survivors. Hodgkin lymphoma (HL) is a disease that typically strikes children and young adults, with more than 80% of those affected being cured. Consequently, HL survivors can live for decades with the persistent and late-emerging effects of the disease and...

Anonymous, 2005: Grassley, Barton launch separate hospital probes on tax exemption, pricing. Hospital Outlook 8(2): 2, 10-2, 10

Baker, H.G.; Jackson, W., 1951: Cytology of the ecotypes of dioecious Melandrium dioicum. Thick-leaved sub-alpine and alpine ecotypes of both "sexes" from Norway and Switzerland were normal diploids. Lo've's tetraploid plant was therefore an aberration.

Davis, L.C.; Morgan, A.J.; Ruas, M.; Wong, J.L.; Graeff, R.M.; Poustka, A.J.; Lee, H.Cheung.; Wessel, G.M.; Parrington, J.; Galione, A., 2008: Ca(2+) signaling occurs via second messenger release from intraorganelle synthesis sites. Cyclic ADP-ribose is an important Ca(2+)-mobilizing cytosolic messenger synthesized from beta-NAD(+) by ADP-ribosyl cyclases (ARCs). However, the focus upon ectocellular mammalian ARCs (CD38 and CD157) has led to confusion as to how extracellular...

Beletskii, Y.D.; Razoriteleva, E.K., 1974: Nonnuclear mutations in sunflower. II. Lethal chlorophyll mutants from the progeny of plants with variegated leaves. The lethal mutants, when grafted on to green stocks, showed great diversity in survival rate, sterility and phenotypical features of growth. It is supposed that their segregation for sterility was due to unequal distribution of plasmagenes during...

Warwick J.J.; Shetty P., 1988: In stream nitrification rate prediction. A simultaneous nitrogen and dissolved oxygen mass balancing technique is used to accurately assess actual in-stream nitrification rate coefficients. These rate coefficients are compared against estimations from observed spatial changes in various...

Williams, N., 1997: Pig-human transplants barred for now. In a recent report, a panel of British government advisers gave qualified approval for continued research into the transplantation of pig organs into humans but ruled out clinical trials until such transplants are shown to be safe and beneficial....

Kellermeyer, R.W., 1965: Activation of Hageman factor by sodium urate crystals. Arthritis and Rheumatism 8(5): 741-743

Deines, A.; Peterson, E.; Boeckner, D.; Boyle, J.; Keighley, A.; Kogut, J.; Lubben, J.; Rebarber, R.; Ryan, R.; Tenhumberg, B.; Townley, S.; Tyre, A.J., 2008: Robust population management under uncertainty for structured population models. Structured population models are increasingly used in decision making, but typically have many entries that are unknown or highly uncertain. We present an approach for the systematic analysis of the effect of uncertainties on long-term population...

Monro, J.A.; Bailey, R.W., 1975: Differential alkali-extraction of hemicellulose and hydroxyproline from non-delignified cell walls of lupin hypocotyls. The extraction by alkali of hemicellulose polysaccharides and polymer hydroxyproline from non-delignified, primary cell-walls of lupin hypocotyls has been studied, using sequential extractions at 0 degrees and 18-22 degrees. 10% Aqueous potassium...