Sökning: "bäckröding"

Hittade 2 uppsatser innehållade ordet bäckröding.

1. 1. Flodpärlmusslans status i Laxtjärnbäcken : Effekter på flodpärlmusslan av sedimentbelastning och förekomst av bäckröding

   Kandidat-uppsats, Institutionen för ekologi, miljö och geovetenskap

   Författare :Anders Pålsson; [2011]
   Nyckelord :;

   Sammanfattning : The aim of this present study was to determine and evaluate whether the presence of brooktrout (Salvelinus fontinalis) and sediment load may be a threat against the reproduction anddistribution of freshwater pearl mussel (Margaritifera margaritifera) in a creek located innorthern Sweden. Freshwater pearl mussel is an endangered species and is dependent ofbrown trout (Salmo trutta) to reproduce. LÄS MER

3. 2. Life history and large-scale habitat use of brown trout (Salmo trutta) and brook trout (Salvelinus fontinalis) : implications for distributional patterns in small lotic systems

   L3-uppsats, SLU/Dept. Of Aquatic Resources

   Författare :Gunnar Öhlund; [2002]
   Nyckelord :brown trout; brook trout; interspecific competition; life history; fitness; allopatric; sympatric; salmonid;

   Sammanfattning : Over the years, several salmonid species have been widely spread and successfully introduced all over the world. In Sweden, introduced brook trout (Salvelinus fontinalis) has been successful in establishing a substantial number of new populations, a fact that has raised concerns about indigenous brown trout (Salmo trutta) populations being outcompeted. LÄS MER