During the migration season in 2013 a study on spawning migrating salmon and the effect of water flow on the behavior was conducted of the salmon at the Forshaga hydropower station in the River Klarälven. The River Klarälven with its nine hydropower plants on the Swedish side, constituting migration obstacles for the migrating salmon. Fortum Generation AB has together with the County Administrative Board restored a salmon Trap at the lowermost hydropower station in Forshaga, aiming at making it possible for the salmon to swim into the Trap, and thereafter be transported by truck past the power plants and then continue their journey to the spawning grounds on their own. Unfortunately, it is believed that the Trap does not work as well as it should. In this study, I focused on salmon position 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).

Syftet med denna studie var att undersöka om den teoretiska modellen failure Trap- strategin kan förklara alkoholproblematik och depression bland studenter, samt om strategin kan förklara alkoholproblematik ut-över depression. Vi belyser även om strategin bidrar till det dubbelrik-tade sambandet mellan alkoholproblematik och depression. Deltagare var 358 universitetsstudenter vid ett mellanstort svenskt universitet. Deltagarna svarade på en onlinebaserad enkät rörande depressiva symptom, alkoholvanor och användandet av failure Trap- strategin. Data analyserades genom korrelations-och regressionsanalyser.

Many watersheds have lost stocks of migrating fish species because of the development of hydroelectric plants and other fragmenting barriers. The remaining stocks of migrating Atlantic salmon (Salmo salar) and brown trout (Salmo trutta) in River Klarälven, Sweden are five times smaller compared to one hundred years ago. A fish-Trap at the hydroelectric plant in Forshaga has been vital for the continued existence of the stocks. This is the first hydroelectric plant of eight, blocking the way to the spawning grounds. Spawners are collected in the Trap for both hatchery and transport by truck upstream and past seven more hydroelectric plants to the spawning grounds, where they are released for possible natural reproduction.

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This thesis aim to advance the Liberal Integrovernmentalism (LIG) developed byAndrew Moravcsik in order to order to explain how the European Court of Justice (ECJ) can make de facto EU policies diverge from what was originally intended by the Member States. More specifically it describes how the Posting of Workers Directive, Directive 96/71/EC, originally was created to shield certain Member States and their respective systems of regulating the labour market from pressure arising from the posting of workers form low-wage countries inside the EU. However, through a series of cases in the ECJ the de facto policy of the directive has changed and it is now in itself a potential threat against these systems. The Member States now find themselves caught in a ?Joint-Decision Trap?, unable to rectify the situation even though their original agreement has been turned on its head.

Streams and riparian zone are closely linked by reciprocal flows of energy and nutrients. A large part of the transportation from water to land is in form of emerged aquatic insects. Conversion of land from forest to agriculture can greatly affect aquatic ecosystems, and due to the close link, also affect the adjacent terrestral zone. Investigating how the presence of agriculture in the surrounding area affects amounts of emergent aquatic insects gives an indication on how agriculture, in turn, may affect the terrestral enviroment. The study was preformed alongside ten streams in northern Sweden; five in landscape transformed by agriculture and five in undisturbed forest areas.

The spruce bark beetle (Ips typographhus) is one of the 25 000 species of insects in Sweden, an insect of great economic importance because it can alone terminate forest of high value. During the past decade, insights of climate change received with increasing attention. If the future brings a milder climate in the north and therefore a longer growing season, one would think that it would only affect the forestry to the better? Yet in recent time, outbreaks after storm felling seems to occur more frequently. The Spruce bark beetle ruins millions of cubic meter of Norway spruce (Picea abies) in Sweden alone, with more frequent storm felling and a larger amount of wind thrown threes in the forests there will also be room for an advancing reproduction.

Fruit flies (Tephritidae) are serious pests that cause enormous losses for farmers in many countries. The frequent use of insecticides in controlling fruit flies in fruits and vegetable has not resulted in sustainable management of the pest. Problems associated with this complete reliance on chemical control are many residues of insecticides in crops, health problems for farmers, contamination of water and soil, insecticide resistance development and decrease in natural enemy populations. The implementation of control measures that do not imply an added burden to the environment and/or the farmers is urgent. More knowledge about the ecology of fruit flies is the basis for finding new and better ways to control this pest.

Over the last couple of years, growers, researchers, advisors and plant protection companies have noticed increasing problems with tortricids in Swedish apple orchards. Since the insecticide Gusathion (azinphosmethyl) has been banned (end of 2008; KemI 2008), a further increase of tortricid populations can be expected. In order to get a picture of species composition and population densities among the tortricids, an inventory of seven species, Adoxophyes orana, Archips podana, Archips rosana, Cydia pomonella, Hedya nubiferana, Pandemis heparana and Spilonota ocellana was made in 11 orchards in southern Sweden (Skåne) in 2008. Population densities were estimated by bud sampling (April 20-25), pheromone Trapping (May 5-September 22) and assessment of fruit damage (September 9-12). In all orchards A.

Vattenkraftstationer, med dammar och turbiner, utgör hinder för nedströmsvandrande smolt. Syftet med denna studie var att undersöka turbindödligheten för öringsmolt (Salmo trutta) vid två kraftstationer, de befintliga ytlänsarnas avledningseffekt och om effekten kunde förstärkas genom mörkläggning i form av övertäckning av kraftkanalen med en presenning vid turbinintaget. Utöver detta var avsikten även att undersöka om det fanns något samband mellan smoltgrad och smoltens förmåga att förflytta sig mot havet. I Emån i Småland fångades 46 öringsmolt som radiomärktes och sattes ut vid två kraftstationer och pejlades dagligen i sex veckor. Det var en större dödlighet vid den övre stationen än vid den nedre.

All over the world the urbanisation increases at the expense of green areas. Many plants and animals are endangered today because their habitats gets smaller or disappear. The green areas that are left in city centres and suburbs are often small and surrounded by roads and buildings. Despite this, several studies have shown that these small green areas may house large biological diversity.This project aims to study the biological diversity in small green patches in residential areas. The study has been carried out in Råsunda in Solna municipality (Stockholm county) during the period May?July 2006.Three equivalent areas (5000?10 000 m2) with quite many old oaks were chosen for the study and inventoried for birds and saproxylic insects.

All over the world the urbanisation increases at the expense of green areas. Many plants and animals are endangered today because their habitats gets smaller or disappear. The green areas that are left in city centres and suburbs are often small and surrounded by roads and buildings. Despite this, several studies have shown that these small green areas may house large biological diversity.This project aims to study the biological diversity in small green patches in residential areas. The study has been carried out in Råsunda in Solna municipality (Stockholm county) during the period May?July 2006.Three equivalent areas (5000?10 000 m2) with quite many old oaks were chosen for the study and inventoried for birds and saproxylic insects.

Runtom i världen finns det utarbetade metoder för att begränsa den ökande populationen av förvildade katter. Studier gjorda över så kallade TNR-projekt (Trap, Neuter, Return) har visat goda resultat på den långvariga effekten av minskad förökning, men också på en förbättrad välfärd för individerna. I USA finns det kliniker som arbetar mycket eller enbart med dessa patienter. Dessa blir finansierade genom statliga bidrag, privatpersoners donationer, samt fri-villig arbetskraft. Lämpliga anestesipreparat har utvärderats till just dessa patienter, och rikt-linjer för hantering av icke hanterbara individer finns dokumenterade i flera studier. I Sverige uppskattas antalet hemlösa katter till cirka 100 000, men problematiken kring dessa individer sköts i stort sett av privatpersoner och katthem.

The estimated number of people living in extreme poverty is 1.3 billion and 70% of those are women. The aim of this study is to explain in what ways and why women are regarded as poorer than men.The definition of poverty has expanded and is now multidimensional. In order to answer the aim of this thesis the following dimensions will be included and work as a theory in which the analysis will be structured after. Through a gender perspective, will the role of woman emerge through a multidimensional definition of poverty. If the balance is a negative in these dimensions, the situation for women will worsen and become permanent.

The estimated number of people living in extreme poverty is 1.3 billion and 70% of those are women. The aim of this study is to explain in what ways and why women are regarded as poorer than men.The definition of poverty has expanded and is now multidimensional. In order to answer the aim of this thesis the following dimensions will be included and work as a theory in which the analysis will be structured after. Through a gender perspective, will the role of woman emerge through a multidimensional definition of poverty. If the balance is a negative in these dimensions, the situation for women will worsen and become permanent.