Essays about: "aquatic resources"

Showing result 6 - 10 of 102 essays containing the words aquatic resources.

  1. 6. Potential migration routes for the alien species, pink salmon (Oncorhynchus gorbuscha) : investigating access in west and south coast rivers of Sweden

    University essay from SLU/Dept. Of Aquatic Resources

    Author : Rebecca Martin; [2023]
    Keywords : invasive; alien species; salmonid; anadromous; migration barriers;

    Abstract : Invasive alien species are one of the main drivers of ecosystem change globally, presenting challenges to biodiversity that take many forms Pink salmon, Oncorhynchus gorbuscha, has recently been observed on the Swedish west coast where its presence is the result of secondary spreading from populations introduced to the White and Barents Seas in northwestern Russia. In Sweden, O. READ MORE

  3. 7. Temperature dependent preening behaviour in common guillemots Uria aalge

    University essay from SLU/Dept. Of Aquatic Resources

    Author : Saga-Savanna Kynman; [2023]
    Keywords : common guillemot; common murre; seabirds; Stora Karlsö; heatstress; temperature; preening; allopreening;

    Abstract : As global temperature increase, new thermal conditions may challenge the physiological limits of endotherms. Examining the direct effects of extreme temperatures is an important component in understanding how these physiological limits may impact an organism’s behaviour, breeding success and survival. READ MORE

  4. 8. How to turn “less bad” into good without limit : to measure companies’ positive climate impact

    University essay from SLU/Dept. Of Aquatic Resources

    Author : Kajsa Eliasson; [2023]
    Keywords : digitalization; avoided emission; carbon handprint; Scope 4; building; construction; building 4.0; consultancy; project-based industries; carbon assessment; environmental impact; environmental strategies; climate potential;

    Abstract : Climate change is an urgent problem threatening life as we know it. To combat the problem there is a high need to reduce this generation’s human-induced Greenhouse Gasses (GHGs). READ MORE

  5. 9. Change in uptake and transfer of zinc in the food chain when predatory fish disappear from the system

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Sara Westerström; [2023]
    Keywords : Aquatic food web; Food chain structure; Trophic transfer; Decline of top predators; Stage-structured biomass model; Pollutants; Heavy metals; Zinc; Akvatisk födoväv; Födovävsstruktur; Trofisk överföring; Minskning av toppredatorer; Stegstrukturerad biomassamodell; Föroreningar; Tungmetaller; Zink;

    Abstract : There is a widespread distribution of possibly toxic heavy metals, such as zinc, in aquatic ecosystems. Simultaneously aquatic food webs are changing due to declining predatory fish stocks. READ MORE

  6. 10. Making nets more acoustically visible : Floats as passive mitigation measures to reduce bycatch of harbour porpoise (Phocoena phocoena) in gillnets

    University essay from SLU/Dept. Of Aquatic Resources

    Author : Frida Rosshagen; [2023]
    Keywords : toothed whales; harbour porpoise; Phocoena phocoena; incidental capture; bycatch; fisheries; fishing gear; ; gillnet; mitigation; reduction; low-cost; passive acoustic reflector; float;

    Abstract : Incidental capture in fishing gear is today affecting at least 112 marine mammal species worldwide and for many smaller toothed whale species (Odontocete), gillnets are considered to be the largest problem. Although some effective mitigation measures exists, these are often context specific and many might be hard to implement due to reasons such as high costs and maintenance. READ MORE