Sökning: "host fish species"

Visar resultat 1 - 5 av 13 avhandlingar innehållade orden host fish species.

  1. 1. Assembly of Gut Microbial Communities in Freshwater Fish and Their Roles in Fish Condition

    Författare :Yinghua Zha; Richard Svanbäck; Eva Lindström; Peter Eklöv; Brendan Bohannan; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; freshwater fish; gut microbial communities; predation stress; diet; fish condition; bacterial colonization; metacommunity theory; dispersal; Biology with specialization in Limnology; Biologi med inriktning mot limnologi;

    Sammanfattning : Animal hosts provide associated microorganisms with suitable ecological niches in their intestines. Microbes help their hosts to digest food, protect against pathogens, and influence the host’s metabolisms. Compositional variation of gut microbial communities is common among hosts, and may affect the health status of hosts. LÄS MER

  3. 2. Conservation ecology of the thick-shelled river mussel Unio crassus : The importance of parasite-host interactions

    Författare :Lea Dominique Schneider; E. Martin Österling; P. Anders Nilsson; Johan Höjesjö; Caryn Vaughn; Karlstads universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Endangered species; freshwater mussels; host fish species; parasite-host; river; stream; Unio crassus; Unionoida; Biology; Biologi;

    Sammanfattning : Unionoid mussels are globally threatened and their conservation requires species-specific knowledge on their ecology and parasite-host interaction. Unio crassus is one of Europe’s most threatened unionoid species and has a temporary obligate parasitic life stage (glochidia) on fish. LÄS MER

  4. 3. Single cell protein in fish feed: effects on gut microbiota

    Författare :Andreas Nyman; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Sammanfattning : The microbiota has been shown to be important for nutrition and health. It provides the host with an extensive arsenal of dietary enzymes that can contribute to host metabolism by conversion of otherwise undigestible compounds to metabolites that the host can utilize. LÄS MER

  5. 4. Habitat compensation in nature-like fishways : Effects on benthos and fish

    Författare :Stina Gustafsson; Olle Calles; Martin Österling; Jostein Skurdal; Paul Giller; Karlstads universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Biocanal; biodiversity; brown trout; freshwater pearl mussel; functional feeding groups; habitat heterogeneity; large woody debris; macroinvertebrates; PIT-tag; salmonids; Biology; Biologi;

    Sammanfattning : The construction of nature-like fishways has become an increasingly common measure to restore longitudinal connectivity in streams and rivers affected by hydroelectric development. These fishways also have the potential to function as habitat compensation measures when running waters have been degraded or lost. LÄS MER

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

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

    Sammanfattning : 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. LÄS MER