Sökning: "tench"

Visar resultat 6 - 7 av 7 uppsatser innehållade ordet tench.

1. 6. How does predation from fish influence the benthic invertebrates’ species composition in the Phragmites australis and Chara vegetation of Lake Takern?

   Master-uppsats, Ekologi

   Författare :Ernest Aigbavbiere; [2011]
   Nyckelord :Handling time; intake rate; predation; macro-invertebrates.;

   Sammanfattning : Predation is one of the important selective factors that regulate the species composition of benthic invertebrate communities. The study objective was to investigate the invertebrate distribution in two contrasting habitats in Lake Takern, southern Sweden, submerged Chara vegetation and emergent Phragmites australis vegetation, and to investigate the influence of predation from fish on certain invertebrates. LÄS MER

3. 7. Fisksamhället i Spexhultasjön, Nässjö

   Kandidat-uppsats, Institutionen för fysik, kemi och biologi

   Författare :Andreas von Schéele; [2007]
   Nyckelord :ekologi; fisksamhälle; provifiske; abborre; mört; konkurrens;

   Sammanfattning : The lake Spexhultasjön is a moderate humic mesotrophic lake that is not acidified. The fish fauna was investigated by using a standard method for sampling freshwater fish with multi mesh gill nets. The fish fauna was diverse with perch, pike, tench, common whitefish, and roach. Perch and roach dominated. LÄS MER