Search for dissertations about: "downstream migration"
Showing result 1 - 5 of 79 swedish dissertations containing the words downstream migration.
-
1. Migration in anadromous brown trout
Abstract : This thesis investigates the anadromous migration of brown trout (Salmo trutta) with the overall aim to improve stock management within the region. Several field studies were conducted in different streams and coastal areas on the west coast of Sweden specifically aimed to evaluate environmental triggers for migration (Paper I), migration pathways and strategies (Paper III and IV) as well as the genetic differentiation of anadromous populations of brown trout (Paper V). READ MORE
-
2. Downstream migration of salmonids in regulated rivers : Non-conventional methods for fish diversion
Abstract : Passages through hydropower plants can be fatal for downstream migrating salmonids (Salmo spp.). This is particularly true for large adults that are returning to the ocean after spawning. READ MORE
-
3. Mental health after migration to Sweden : The role of the social determinants of health
Abstract : Migrants often experience worse mental health after migration than natives in Sweden. Using survey, register and peer-reviewed published data, the five studies of this thesis explored the mental health variation of different migrant groups settled in Sweden, including by the timing of migration, level of integration and region of origin. READ MORE
-
4. Neural Stem Cell Differentiation and Migration
Abstract : Neural stem cells are the precursors of neurons, astrocytes and oligodendrocytes. During neural development, the division of stem cells takes place close to the lumen of the neural tube, after which they migrate to their final positions within the central nervous system (CNS). READ MORE
-
5. Atlantic salmon in regulated rivers : Migration, dam passage, and fish behavior
Abstract : Hydropower dams block migration routes and disrupt longitudinal connectivity in rivers, thereby posing a threat to migratory fish species. Various fish passage solutions have been implemented to improve connectivity with varying success. READ MORE