Essays about: "Cascading effects"

Showing result 11 - 15 of 23 essays containing the words Cascading effects.

  1. 11. How to study the Occurrence of Cascading Effects in Critical Infrastructure : Evaluating and Developing a Method for gathering data on critical infrastructure dependencies.

    University essay from Umeå universitet/Statsvetenskapliga institutionen

    Author : Viktor Johansson; [2019]
    Keywords : cascading effects; critical infrastructure; dependencies; interdependencies; newspaper articles; policy; Swedish Civil Contingencies Agency; vital societal functions.;

    Abstract : This thesis evaluates and develops a method for studying the occurrence of cascading effects between critical infrastructures. The thesis also analyzes how the results of previous research using the method may have been affected by certain aspects of the method. READ MORE

  3. 12. Increased body growth rates of northern pike (Esox lucius) in the Baltic Sea : importance of size-selective mortality and warming waters

    University essay from SLU/Dept. Of Aquatic Resources

    Author : Terese Berggren; [2019]
    Keywords : Northern pike; Esox lucius; Back-calculated length; Body growth; Size-selective mortality; Warming waters; Baltic Sea;

    Abstract : The northern pike, Esox lucius Linnaeus (1758), is a highly valuable species in recreational fishing, and plays a vital role as a keystone predator in the structuring of fish communities in temperate lakes and brackish waters. Ma-jor declines of pike in the Baltic Sea have been recorded, particular of larger pikes, which may have cascading effects on abundances of lower ecosys-tem compartments. READ MORE

  4. 13. Causes of trends in abundance of mesopredators in the Kattegat Sea

    University essay from SLU/Dept. Of Aquatic Resources

    Author : Karla Rudnicki; [2018]
    Keywords : shore crab; atlantic cod; mesopredator; Vendelsöarna; temperature; Ringhals; nuclear power plant;

    Abstract : It has come to attention that there is a mesopredator release effect present in the Kattegat Sea (northern Europe, between Sweden and Denmark). The areas in focus here are Ringhals, a nuclear power plant zone, and Vendelsöarna, a undisturbed reference area. READ MORE

  5. 14. Northern pike Esox lucius growth rates in sub populations of freshwater and sea water origins in the Baltic Sea : Otolith method approach

    University essay from Linnéuniversitetet/Institutionen för biologi och miljö (BOM)

    Author : Nelson Mbawala; [2016]
    Keywords : Esox lucius; otolith; polishing; staining; core; annuli; growth rate and age;

    Abstract : Northern pike or pike Esox lucius is total piscivorous fish species found in the brackish and freshwater ecosystems of the Northern hemisphere. It is a top predator and keystone species that causes cascading effects in these ecosystems. Otoliths have been used to estimate age and growth rates in most fishes. READ MORE

  6. 15. Fish on drugs - an experimental study of crucian carp exposed to fluoxetine and a natural predator

    University essay from Lunds universitet/Miljövetenskaplig utbildning

    Author : Jennie Örjes; [2015]
    Keywords : weight; sociability; boldness; predation; Esox lucius; Carassius carassius; pike; anti-depressant; fluoxetine; crucian carp; Earth and Environmental Sciences;

    Abstract : Organisms in the aquatic environment face the challenge of exposure to environmental pollution by a multitude of pharmaceuticals. However, the potential for disruptive effects in non-target aquatic organism remains poorly understood. READ MORE