Sökning: "River Habitat Survey"

Hittade 5 uppsatser innehållade orden River Habitat Survey.

  1. 1. Mapping Fire Salamander (Salamandra salamandra) Habitat Suitability in Baden-Württemberg with Multi-Temporal Sentinel-1 and Sentinel-2 Imagery

    Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Författare :Andreas Eriksson; [2022]
    Nyckelord :Geography; GIS; Habitat Suitability; Remote Sensing; Image Classification; Earth and Environmental Sciences;

    Sammanfattning : Remote sensing image classification is used in land cover, forest type and tree species classifications but rarely considered for habitat suitability modelling of animal and plant species. It is instead common that land cover products derived from remote sensing data are used in these modelling problems, even though satellite imagery can provide more detailed information. LÄS MER

  3. 2. Fish sampling in lotic water : a study of the efficiency of the novel Nordic multi-mesh Stream Survey Net

    Master-uppsats, SLU/Dept. Of Aquatic Resources

    Författare :Anders Eidborn; [2017]
    Nyckelord :Fish sampling; NSSN; gill net; fish community;

    Sammanfattning : A free-flowing stream can offer several ecosystem services. Fish are one of these, and are an important resource for society, both as a food source and as a biological indicator of the water quality, which gives knowledge of the overall health of the stream. The lotic environment in fresh water streams is an important habitat for many fish species. LÄS MER

  4. 3. Inventering av flodpärlmussla i Fylleån norr om Gyltigesjön

    Kandidat-uppsats,

    Författare :Jessica Johansson; Juha Rankinen; [2015]
    Nyckelord :Flodpärlmussla;

    Sammanfattning : Freshwater environments are threatened worldwide, of which many of the species associatedwith freshwater. In 2014, 243 freshwater mussels were on the international Red List. LÄS MER

  5. 4. Going to come : gorilla crop-raiding in Cross River National P(Ark)

    Master-uppsats, Institutionen för vård och natur

    Författare :J E Patrik Norberg; [2008]
    Nyckelord :gorilla; farming; farmers; crop-raiding; Nigeria; Cross River; West Africa; ecology; National Park; WCS; Okwangwo;

    Sammanfattning :   Due to recent crop-raiding incidents an eight weeks field study to survey threats to endemic gorillas have been conducted in Okwangwo Division of Cross River National Park, Nigeria. The report ratifies that smaller mammals than gorillas are responsible for a majority of damage done to Okwangwo farm crops. LÄS MER

  7. 5. Preliminär bedömning av den ekologiska statusen i Enköpingsån

    L3-uppsats, SLU/Dept. of Environmental Assessment

    Författare :Johan Axnér; [2005]
    Nyckelord :Ramdirektivet för vatten; ekologisk status; bottenfauna; River Habitat Survey; kemisk status; Enköpingsån och Långtorabäcken;

    Sammanfattning : Under våren och sommaren 2005 utfördes en studie av Enköpingsån och Långtorabäcken för att göra en preliminär bedömning av den ekologiska statusen i åarna. Vilket gjordes genom att undersöka bottenfaunan och den fysiska miljön i och kring vattendragen. LÄS MER