Essays about: "östersjön"

Showing result 1 - 5 of 109 essays containing the word östersjön.

  1. 1. Development of northern pike (Esox lucius) populations in the Baltic Sea, and potential effects of grey seal (Halichoerus grypus) predation

    University essay from SLU/Dept. Of Aquatic Resources

    Author : Rebecka Svensson; [2021]
    Keywords : diet analysis; ; marine mammals; predator-prey; socio-economic; sport fishing; recreational fisheries;

    Abstract : Worldwide, marine mammal populations are increasing after considerable efforts to turn the downward trends caused by hunting, accidental mortality and pollution. The ecosystem effects from the increases of these top predators may be pronounced, but are in most cases poorly known. READ MORE

  2. 2. Self-levelling Platform Concept for a Winch-based, Single Point Absorbing, Wave Energy Converter

    University essay from KTH/Maskinkonstruktion (Avd.); KTH/Maskinkonstruktion (Avd.); KTH/Maskinkonstruktion (Avd.)

    Author : Anton Bergman; Robin Eriksson; Lars-Fredrik Grahn; [2020]
    Keywords : Point absorbing; Self-levelling; Wave power; Winch-based; Nivellerande; Punktabsorberande; Vågkraft; Vinschbaserat;

    Abstract : This report covers a bachelor thesis project to design a concept for a levelling system to a point absorbing wave energy converter that uses a winch with a chain, which has restricted capabilities to bending and thus requires a system which compensates for this. First of all, a literature study was made to see if there were any technologies that could be used, and also a wide search for information about the wave conditions in the Baltic sea were performed to find what requirements would be necessary for the concept to be able to withstand the conditions faced there. READ MORE

  3. 3. Vass som foder till häst och nötkreatur : från skörd till ensilering

    University essay from SLU/Dept. of Animal Nutrition and Management

    Author : Siri Sabina Johansson; [2020]
    Keywords : ensilering; foder; grovfoder; häst; näringsinnehåll; nötkreatur; phragmites australis; skörd; vass;

    Abstract : Vass (Phragmites australis) har historiskt sett använts som foder till framförallt nötkreatur, men på senare år har den blivit föremål för diskussioner som ett alternativt fodermedel till både nötkreatur och häst. I och med bristen på grovfoder år 2018 lyftes vass fram som en möjlig ersättare till odlat grovfoder. READ MORE

  4. 4. Håga in context – An analysis of the Håga complex in the Bronze Age landscape of the Mälar Valley region

    University essay from Uppsala universitet/Arkeologi

    Author : Rachel Elliott; [2020]
    Keywords : Håga complex; King Björn’s mound; Bronze Age; Middle Sweden; Mälar Valley region; ritual landscapes; ritual practice theory; Hågakomplexet; Kung Björns hög; bronsåldern; Mellansverige; Mälardalen; rituell landskapet; rituellpraktiksteori;

    Abstract : The Bronze Age in Middle Sweden is characterized by several key sites and monuments which have been interpreted by previous research to play an overarching role in the elite ruling system in the Mälar Valley region. King Björn’s mound (a.k.a. READ MORE

  5. 5. Phylogenetic analysis of aquatic microbiomes : Evolution of the brackish microbiome

    University essay from KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Author : Ziling Deng; [2020]
    Keywords : Metagonome; Aquatic environments; Biodiversity; Evolution; Phylogenetic tree; Ancestor state reconstruction; Biome origin; Metagenom; vattenmiljöer; biologisk mångfald; utveckling; fylogenetiskt träd; rekonstruktion av förfäder; biom-ursprung;

    Abstract : Microorganisms play crucial roles in aquatic environments in determining ecosystemstability and driving the turnover of elements essential to life. Understanding thedistribution and evolution of aquatic microorganisms will help us predict how aquaticecosystems will respond to Global Change, and such understanding can be gained bystudying these processes of the past. READ MORE