Essays about: "Eurasian perch Perca fluviatilis"

Showing result 1 - 5 of 9 essays containing the words Eurasian perch Perca fluviatilis.

  1. 1. Experimental removal of anoxic hypolimnion conditions in a lake increases perch growth

    University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Author : Felix Torsson; [2021]
    Keywords : Eurasian perch; oxygen limitation; individual condition; growth and stomach fullness.;

    Abstract : Global warming leads to an increased browning of lakes across the northern hemisphere. This browning can due to benthic light-limitation cause hypoxic bottom conditions which can have negative impact on the fish production in the northern lakes. READ MORE

  3. 2. Diet variability in Eurasian perch (Perca fluviatilis) as a response to environmental variables along a latitudinal gradient

    University essay from Uppsala universitet/Institutionen för biologisk grundutbildning

    Author : Kasparas Bublys; [2018]
    Keywords : Eurasian perch; diet; niche; niche breadth; latitude; climate;

    Abstract : Climate change is expected to have a profound impact on freshwater fish communities, especially at higher latitudes. In this study I investigated potential effects of climate change on the niche structure of Eurasian perch (Perca fluviatilis) by looking at their diet across a latitudinal gradient and at varying light climate. READ MORE

  4. 3. Effects of global warming on Eurasian perch (Perca fluviatilis) in the Baltic Sea : does the growth response to increased temperatures differ along a latitudinal gradient?

    University essay from SLU/Dept. Of Aquatic Resources

    Author : Mattias Grunander; [2018]
    Keywords : body-length at age; growth; size dependent growth; Perca fluviatilis; climate change; temperature; Baltic Sea; latitude;

    Abstract : Anthropogenically caused climate change, i.e. global warming, is anticipated to affect all living organisms. Particularly ectotherms are predicted to show strong responses to the increased warming, as their body temperature closely tracks ambient temperatures and because body temperature profoundly affects many physiological functions e. READ MORE

  5. 4. Remotely monitoring heart-rate and feeding behaviour of fish by using electronic sensor-tags

    University essay from SLU/Dept. of Wildlife, Fish and Environmental Studies

    Author : Therese Arvén Norling; [2017]
    Keywords : bio-logging; remote monitoring; behaviour; electronic sensors; heart rate; acceleration;

    Abstract : Modern electronic sensor tags (BioLoggers) can collect high resolution data on movement and physiology of fish. These tools make it possible to remotely monitor physiological stress responses as well as complex behaviours, such as feeding and hunting, in free swimming wild fish, data that often is difficult to collect by other means. READ MORE

  6. 5. The influence of northern pike on the diet of Eurasian perch

    University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Author : Karlberg Ylva; [2017]
    Keywords : Perca fluviatilis; Esox lucius; Coregonus lavaretus; trophic interactions; facilitation; Eurasian perch; northern pike; whitefish; Perca fluviatilis; Esox lucius; Coregonus lavaretus; trofiska interaktioner; facilitering; abborre; gädda; sik;

    Abstract : Top predators in aquatic ecosystems often have strong top-down effects on the ecosystem. Northern pike (Esox lucius) has been documented to cause whitefish (Coregonus lavaretus) populations to diverge into different ecomorphs. READ MORE