Search for dissertations about: "CYPRINID"

Showing result 1 - 5 of 6 swedish dissertations containing the word CYPRINID.

  2. 1. Biodiversity in Swedish Cyprinid Fish: Insights Into Processes of Divergence

    Author : Marnie H Demandt; Mats Björklund; Erik Petersson; Brent Emerson; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; speciation; hybridization; bottleneck; genetic drift; phylogeny; speciation rates; common bream; white bream; roach; Swedish cyprinid fish; Cyprinidae; Biology; Biologi;

    Abstract : Uncovering and understanding the processes that have led to the biological diversity we observe today are of fundamental interest in biology. Since direct observation of speciation is usually impossible, knowledge about the processes behind species formation can be gathered by studying mutations, natural/sexual selection, and genetic drift. READ MORE

  4. 2. Phylogeny and species diversity of the South and Southeast Asian cyprinid genus Danio Hamilton (Teleostei, Cyprinidae)

    Author : Fang Fang Kullander; Richard Vari; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Benfiskar; karpfiskar; fylogeni; Sydasien; Sydostasien; Systematic Zoology; zoologisk systematik och evolutionsforskning;

    Abstract : Danio Hamilton, in the wide sense, consists of 66 nominal species, of which about 45 are valid. Four species, viz. D. kakhienensis, D. READ MORE

  5. 3. Phylogenetic analyses of the genus Rasbora (Teleostei: Cyprinidae) and its systematic postition within the cyprinid subfamily Danioninae (Actinopterygii: Cypriniformes)

    Author : Te-Yu Liao; Stockholms universitet; []
    Keywords : ;

    Abstract : .... READ MORE

  6. 4. Paleolimnological reconstructions of fish population changes in acidified lakes

    Author : Fredrik Palm; Göteborgs universitet; []
    Keywords : Acidification; Chaoborus; C. flavicans; C. obscuripes; Cyprinids; Daphnia; Fish loss; Fish community composition; Ephippia; Fragmentation; Mandibles; Perch; Roach; Sediments; 210-Pb chronology;

    Abstract : This thesis deals with the potential of using subfossil Chaoborus spp. and Daphnia spp. remains preserved in lake sediments to reveal past fish community alterations related to progressive acidification. READ MORE

  7. 5. On the abundance and distribution of organisms in fragmented riverscapes : Insights From Studies On Different Species And Spatiotemporal Scales

    Author : Carl Tamario; Anders Forsman; Petter Tibblin; Erik Petersson; Johan Höjesjö; Linnéuniversitetet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Evolutionary Biology; Evolutionsbiologi;

    Abstract : Dams in rivers modify the habitats and hinder dispersal and migration. Since moving around is an essential part of most organisms’ life histories, this represents a new regime for life in freshwater. READ MORE