Essays about: "habitatpreferenser"
Showing result 1 - 5 of 9 essays containing the word habitatpreferenser.
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1. Dispersal and habitat use of juvenile brown trout (Salmo trutta) following egg stocking : -A case study in the river Rotälven, Sweden
University essay from Karlstads universitet/Institutionen för miljö- och livsvetenskaper (from 2013)Abstract : Egg stocking in rivers and streams is a common measure to support and re-introduce salmonid populations. To ensure the success of egg stocking programs, knowledge of the early life stages of juveniles including dispersal ability and habitat preferences of fry is a prerequisite. READ MORE
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2. Cotula coronopifolia : invasive or just another alien species?
University essay from SLU/Dept. of EcologyAbstract : It is known that alien species can become invasive in a new environment and in new geographic areas. The recent and rapid expansion of Cotula coronopifolia (cotula)on the island of Öland in Sweden has raised questions about its potential invasiveness. READ MORE
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3. Quaternary Arctic foraminiferal isotopes: species reliability and palaeoceanographic application
University essay from Stockholms universitet/Institutionen för geologiska vetenskaperAbstract : To investigate whether foraminiferal stable isotope (δ18O/δ13C) variations have potential as a chronostratigraphic tool in the Arctic Ocean, this thesis presents new δ18O/δ13C data from five marine sediment cores. Three of those are downcore analyses (PS92/54-1; TC/PC-03; PC-07) and the remaining two are core top analyses (PC-04; PC-08). READ MORE
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4. Mobility, habitat selection and population connectivity of Lycaena helle in central Sweden : implications for conservation
University essay from SLU/Dept. of EcologyAbstract : Lycaena helle is an endangered butterfly that is mainly threatened by habitat degradation and fragmentation. For all species with a fragmented distribution, knowledge about mobility, habitat requirements and connectivity is key to developing successful conservation strategies. READ MORE
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5. Frequency regulation and its effects on fish stranding : A hydrological modelling example of a Swedish river
University essay from KTH/Industriell ekologiAbstract : This is a master thesis aiming to answer how frequency regulation at a specific hydropower plant affect the risk of stranding for two common Swedish fish species: Trout and Grayling (Salmo trutta and Thymallus thymallus). The study comprises a literature review and a hydrological modelling in primarily Hec-Ras. READ MORE