124 uppsatser · sida 5 av 9
… and in a line outside the estuary. The receivers recorded when the tagged fish passed and which fish it was. Based on information from the receivers the survival rate and migration speed could be calculated for each group and be compared to the smolts amount of body fat. In this …
… are suitable habitat for mussels, but there were silt on the bottom. ? No fish or fish larvae were found. ? One duck mussel was found in the outlet to Gyltigesjön. In closing, we discuss what could be causing our results.
… % of the registrated movements originated from salmon swimming downstream and fish were found across the whole outlet channel and down to 40 m depth. In 2004 the spill-flows were regulated on daily basis and caused elevated movements of salmon and a prolonged stay of salmon at …
Ett par av de trick som används i virtual reality för att få 3D-världen att verka mer levande är stereoskopi och ett dynamiskt perspektiv med head tracking. Tidigare undersökningar har visat att head tracking har större effekt på 3D-upplevelsen än stereo [1], i alla fall när …
The limit for mercury in fish, set by health authorities, is exceeded in about half of the lakes in Sweden. Methyl mercury (MeHg) is the most toxic form of mercury and accumulates in fish. Therefore transformation of inorganic mercury (Hg) to methylmercury (MeHg) is an important …
… kontrollerade studier inkluderades och s?korden som anv?ndes var ”omega 3”, ”fish oil”, ”food allergy”, ”food hypersensitivity”, ”pregnancy” och ”pregnant”. Populationen i de inkluderade studierna var gravida kvinnor och deras barn. Ett inklusionskriterium var att tillskottet …
… decreases the biological diversity as well as negatively affect tourism and fish industry. In the most severe cases shallow maritime grounds can be completely depleted of oxygen due to decomposition of the increased amount algae and plankton growth. This study have the aim to …
Efter att en rad uppmärksammade nationella fusioner stoppats av EU-kommissionen har en debatt huruvida konkurrensreglerna ska tolkas och huruvida de är rättvisa utlösts. Utifrån denna bakgrund var uppsatsen syfte att skapa förståelse för olikheter i svenska företags respektive …
normalt eller miljöinducerat?
… products, have been recognized as having estrogenic activity on animals. On fish they interfere with endogenous estrogen and in many cases mimic its activity, thus increase estrogenic reponse, with elevated levels of vitellogenin. Hence they are called Endocrine Disrupting …
The population of seatrout and salmon are threatened by over-fishing in the sea and loss of spawning and growing habitats caused by logging activities in many swedish rivers. The knowledge of the spawning migration and the habitat use of the seatrouts and salmon are limited …
Detta är ett naturvetenskapligt arbete som omfattas både av en kvantitativ och en kvalitativ undersökning. Syftet med arbetet är att undersöka mellanskarvens födoval i sjön Sommen, samt att närmare studera huruvida det unika beståndet av röding och öring ingår i mellanskarvens …
huvudsaklig källa till TBT i miljön
… TBT will also be transferred toboth biota and food. TBT has been observed in fish as well as in shellfish. The substance isbioaccumulating, which means that the substance will concentrate in lipofilic tissue. TBT willfor example be stored in the liver. In consideration of this …
samiskt växtutnyttjande från 1600-talet fram till ca 1950
Meat and fish was the most important food for the Sami people in northern Scandinavia until the beginning of the 20th century. It is not so well known that the Sami people also used a lot of wild plants as food and medicine although that kind of food was relatively common among …
Analyser av stabila kol- och kväveisotoper på skelettmaterial från Bjärbygravfältet från äldre romersk järnålder i Kastlösa på Öland
… marine input. This discrepancy may be explained by an intake of freshwater fish or meat from suckling animals. The isotope values do not indicate any significant dietary reliance on cereals. Some gender differences in diet were observed. The [delta]15N values of the women were …
… that the Alby ceramics has been used for cooking/storage of different fish and meat dishes, as well as vegetables and that the vegetables doesn’t derive of cereals.
