Sökning: "fish sexual"
Visar resultat 1 - 5 av 11 uppsatser innehållade orden fish sexual.
1. Sexually segregated habitat selection in Daubenton’s bat Myotis daubentonii
Master-uppsats, SLU/Dept. of Wildlife, Fish and Environmental StudiesSammanfattning : Sexual segregation is a phenomenon present in many vertebrate taxa, including the bat order Chiroptera. Sexual segregation is a social and/or habitat separation based on sex and is driven by varying causes such as sexual dimorphism, resource and physiological limitations, predator avoidance and many other factors. LÄS MER
2. Visualizing neuronal cell sub-populations using novel transgenic zebrafish lines.
Master-uppsats, Uppsala universitet/Institutionen för medicinsk biokemi och mikrobiologiSammanfattning : Zebrafish is a frequently used model organism with an array of transgenic lines that have been used indevelopmental and physiological studies. We aim to generate novel transgenic zebrafish reporter lines to study subpopulations of spinal neurons in vivo. LÄS MER
3. Temperatur- och flödespåverkan på aspens (Leuciscus aspius) lekvandring i Fyrisån och Örsundaån, Uppland
Kandidat-uppsats, Uppsala universitet/Institutionen för biologisk grundutbildningSammanfattning : Interconnected freshwater habitats are essential for many fish populations, which allow fish to migrate between areas to fulfil their life-cycle and maximize their fitness. Currently, such populations are negatively affected by human habitat exploitation. As a result, the biodiversity in freshwater ecosystems is decreasing. LÄS MER
4. Sexual dimorphism in the migratory dynamics of a land-locked population of brown trout (Salmo trutta) in central Sweden : a study at three temporal scales
Master-uppsats, SLU/Dept. of Wildlife, Fish and Environmental StudiesSammanfattning : In this study I use a 56 years long dataset to study the migratory behaviours of a land-locked population of Brown trout (Salmo trutta) in the river Dammån, positioned in central Sweden. I found that there was a mean female-to-male sex ratio in the spawning-run of approximately 2.31 with an average 50% run date on the 29th of July. LÄS MER
5. Can Gender Make a Difference? : A Minor Field Study on the Street-Connected Children in The Gambia.
Kandidat-uppsats, Växjö universitet/Institutionen för samhällsvetenskapSammanfattning : Many studies have been carried out throughout the world on how street-connected children relate to the streets, but not enough of these studies are seen through a gender perspective. Hence, the general conception of street-connected children is in some manner still mainstreamed, which casts an image claiming all children in the same category. LÄS MER
