Sökning: "seasonal migration pattern"

Visar resultat 1 - 5 av 6 uppsatser innehållade orden seasonal migration pattern.

  1. 1. Analysis of coastal erosion between different flights of UAV

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

    Författare :Zhengran Yin; [2021]
    Nyckelord :Coastal erosion; UAV; Digital Surface Model; Slope; Elevation differences; Geomatics; Earth and Environmental Sciences;

    Sammanfattning : More than 600 million people are living in coastal areas in the world. According to the trend of population migration, the global coastal area population may increase to more than 1 billion by 2050. LÄS MER

  3. 2. Long-term morphological evolution of Cua Lo inlet, Central Vietnam

    Master-uppsats, Lunds universitet/Avdelningen för Teknisk vattenresurslära

    Författare :Nikita Tegenfeldt; Orio Johansson; [2020]
    Nyckelord :Inlet morphology; Sand spit; Water exchange; Numerical modelling; Cua Lo river mouth; Sediment transport; Technology and Engineering;

    Sammanfattning : Cua Lo river mouth is a coastal inlet connected to an estuary at the central coast of Vietnam. The area is valuable for maritime trade, fishing industries, and tourism development. Natural disasters during the monsoon period are a problem, causing seasonal flooding. LÄS MER

  4. 3. The impact of abiotic factors on daily spawning migration of Atlantic salmon (Salmo salar) in two north Swedish rivers

    Master-uppsats, SLU/Dept. of Wildlife, Fish and Environmental Studies

    Författare :Anton Holmsten; [2015]
    Nyckelord :environmental factors; VAKI; fish ladder; waterflow; water temperature; seasonal migration pattern;

    Sammanfattning : Atlantic salmon (Salmo salar) depends on two major migrations to fulfil their life cycle, from their birth place in rivers to sea, and back upstream the river again to spawn. Salmon stocks have been heavily reduced during the last century due to human activities such as hydropower and timber floating. LÄS MER

  5. 4. Movement ecology of the golden eagle Aquila chrysaetos and the semidomesticated reindeer Rangifer tarandus : synchronous movements in a boreal ecosystem

    Master-uppsats, SLU/Dept. of Wildlife, Fish and Environmental Studies

    Författare :Mattias Nilsson; [2014]
    Nyckelord :golden eagle; reindeer; GPS transmitter; movement; seasonal migration; ecosystem; Northern Sweden;

    Sammanfattning : The golden eagle Aquila chrysaetos in Sweden are believed to be rather sedentary. Hence, studies in Norway suggest the opposite with a diurnal pattern with seasonal migrations to e.g. south Sweden during the winter – distances of thousands of kilometers. LÄS MER

  7. 5. Utvärdering av rörelsemönster hos öring (Salmo trutta) utifrån otolitmikrokemi

    Magister-uppsats, Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Författare :Magdalena Andersson; [2014]
    Nyckelord :öring; otolit; migration; mikrokemi;

    Sammanfattning : The classic view of trout (Salmo trutta) life history is that trout begins its life in freshwater, migrates to the ocean after about 1-4 years and then returns to freshwater to spawn. As trout fry have been caught at the mouth of the River Emån, near the Baltic Sea, researchers have speculated that some trout emigrate during their first year of life. LÄS MER