Sökning: "Round goby"
Visar resultat 1 - 5 av 12 uppsatser innehållade orden Round goby.
1. Monitoring marine alien and invasive species. A comparison between the traditional method (eRAS) and DNA-based identification of species.
Master-uppsats, Göteborgs universitet / Institutionen för biologi och miljövetenskapSammanfattning : There is a major concern with the uncontrolled spreading of alien and invasive species, caused by an increase in travelling by boat globally. These are dispersed via ballast water, by fouling on ships and in fishing gear. LÄS MER
2. The use of regurgitated pellets from the great cormorant to detect the presence of the round goby
Master-uppsats, Göteborgs universitet / Institutionen för biologi och miljövetenskapSammanfattning : The round goby (Neogobius melanostomus) is an invasive alien species that poses one of the greatest threats to biodiversity and ecosystem services in Sweden today. The round goby originates from the Black Sea and Caspian Sea but has in recent decades rapidly spread with global shipping traffic to new areas in Europe and North America. LÄS MER
3. Hur skiljer sig passageaktivitet mellan stensimpa och svartmunnad smörbult i slitsrännor?
Kandidat-uppsats, SLU/Dept. Of Aquatic ResourcesSammanfattning : Syftet med den här studien var att undersöka och jämföra passageaktivitet hos inhemsk stensimpa och invasiv svartmunnad smörbult i slitsrännor, för att se om det finns vattenhastigheter som förhindrar uppströmspassager av svartmunnad smörbult men tillåter fri passage av stensimpa. En mindre del av arbetet kretsade kring att undersöka om artificiell intelligens (AI) är ett användbart verktyg för att analysera videomaterial från denna typ av försök. LÄS MER
4. The Great cormorant, Phalacrocorax carbo, as a predator of the invasive Round goby
Kandidat-uppsats, SLU/Dept. Of Aquatic ResourcesSammanfattning : Dispersal of invasive species poses a significant threat to biodiversity loss globally and is one of the major threats to the ecological condition in the Baltic Sea. The Baltic Sea is facing potential problems caused by the Round goby, Neogobius melanostomus, which was presumably introduced via ballast water. LÄS MER
5. Can cormorants be used as indicators of local fish abundances? : A diet study of cormorants on Gotland
Master-uppsats, Uppsala universitet/Institutionen för biologisk grundutbildningSammanfattning : Human wildlife conflicts can represent missed opportunities for ecological monitoring, including tracking invasive species. The great cormorant Phalacrocorax carbo sinensis is the centre such a conflict, where the lack of concrete scientific evidence is often replaced by anecdotal evidence, leading to the vilification of these birds. LÄS MER