Sökning: "Noble crayfish Astacus astacus"
Hittade 4 avhandlingar innehållade orden Noble crayfish Astacus astacus.
1. Noble Crayfish (Astacus astacus) in a Changing World : Implications for Management
Sammanfattning : The noble crayfish (Astacus astacus) is critically endangered in Sweden. This is mainly due to the crayfish plague (Aphanomyces astaci), a lethal disease that, among other things, can be spread through the stocking of fish from contaminated water or contaminated fishing gear. LÄS MER
2. Dynamics of omnivorous crayfish in freshwater ecosystems
Sammanfattning : In this thesis I examine the dynamics of crayfish in streams and lakes. I have studied the influence of abiotic and biotic factors on abundance, growth, trophic position, niche breadth, and recruitment of crayfish, by conducting field studies, an outdoor channel experiment and timeseries analysis. LÄS MER
3. Studies on reproduction and growth in the noble crayfish, Astacus astacus L
Sammanfattning : .... LÄS MER
4. The effects of crayfish on interactions in freshwater benthic communities
Sammanfattning : This thesis examines how freshwater crayfish affect community interactions in benthic food webs. I have mainly studied the influence of the introduced signal crayfish (Pacifastacus leniusculus) on littoral communities, but also the influence of the native noble crayfish (Astacus astacus). LÄS MER