124 uppsatser · sida 2 av 9
en litteratur respektive metodstudie
… with a homogen structure. This interference gave problems for many fish populations and resulted in a shortage of feeding habitat, over-wintering habitat, spawning habitat, unnatural flow regimes, sedimentation, unnatural temperature fluctuations. Many of these historical …
En förstudie och konsekvensutredning över förutsättningarna för ökade vandringsmöjligheter med nya fiskvägar.
… in the area. And the size and value of lost power production from new fishways for the twelve stations in the main flow. The investment of new fishways is calculated using simplified templates with values from the business. The cost and loss of power due to new fishways are …
… may be due to the consumption of vacuum-packaged salmon and rainbow trout. Raw fish is not thought to be an important source of contamination, but the fish is contaminated with L. monocytogenes in the production plant. Contamination most likely occurs during the preparation …
It is hard to find streaming waters where humans haven’t affected the fish populations or the running water it self. In many streams the fish populations are over harvested and this results in a lack of older and larger fish. This is also the situation for many populations of …
Sammanfattning Syftet med den här studien var att utveckla och optimera FISH (Fluorescense In Situ Hybridisation) tekniken som en snabb och ganska billig metod för detektion av laktobaciller. Det vill säga att kunna på objektsglas använda FISH tekniken för att identifiera …
Med faunapassage
… and give suggestions on how the power station should run during the time that fish migration is greatest in Leduån. The turbine and generator to the station in Leduån at Olofsfors is designed by the height of the fall and the water flow through the dam. The turbine selected for …
en osteologisk metodstudie i säsong & bevarande
… presents the results from an osteological method study of the Ringsjöholm fishbone material. Ringsjöholm is located in Scania, southern Sweden and is 14C dated to 5960-5200 B.P. The aim of this paper is to critically analyse methods used on fish bone material in estimations of …
Erosion och förändring sedan 1960
… in the Baltic Sea and have started to become a big treat and a problem to the fishing industry. The grey seal destroys and enters fishing traps and consumes large quantities of the fish that have been caught. The knowledge of the grey seal, like abundance and food preferences …
… in the Baltic Sea and have started to become a big treat and a problem to the fishing industry. The grey seal destroys and enters fishing traps and consumes large quantities of the fish that have been caught. The knowledge of the grey seal, like abundance and food preferences …
… River Vindelälven, wasstudied in September during the pre-spawning period. The fish migrate from down- orupriver lakes for spawning in the river and data was collected by habitat mapping andradio-telemetry. Habitat selection of fish was analysed with preference curves …
att skapa ett hållbart fiske med hög kvalitet
… forest river in eastern Jämtland is a well-known river that has been a popular fishing river for a long time. The actual Ammerån begins downstream the lake Solbergsvattnet at Hammerdal and flows into the Indalsälven 10 km upstream Hammarstrand. The river environment switches …
Strömmars betydelse för lokalisering av odlingslokaler och utformning av kontrollprogram i kustområden
… to evaluate how current measurementscould help to determine how particles from fish farms are dispersed. During sixweeks of the summer 2012, two different current measurements were conducted.One of them consisted of measurements each fifth minute at 5 m and 15 m atthree …
om fiskhuvudformiga hängen, sociala praktiker och förändring, 600-1200 e. Kr.
Fish-head pendants are one of the characteristic Gotlandic Late Iron Age artefacts. This object has been rather neglected and mainly considered as an insignificant embellishment, normally worn as a neck-collar and seen as an artefact include in the typical Gotlandic set of …
… in relation to water flow and if the number of salmon that swam into the fish trap differed between salmon with previous experience of the trap (experienced) and salmon without experience (unexperienced). My results showed that there were significantly more inexperienced salmon …
… was to investigate whether it was possible to discern where and how long the fish spent in freshwater and saltwater during different parts of their lives. Between 2007 and 2009, 23 adult trout were captured in the River Emån in southeastern Sweden. From each fish, a …
