Essays about: "tumlare"

Showing result 1 - 5 of 7 essays containing the word tumlare.

  1. 1. Protecting the proper Baltic harbour porpoise : An evaluation of Sweden’s conservation plan

    University essay from Malmö universitet/Institutionen för Urbana Studier (US)

    Author : Isabelle Faringstam; [2021]
    Keywords : Conservation; Evaluation; Rationality; Efficiency; Harbour porpoise; Sweden; Artbevarande; Utvärdering; Rationalitet; Effektivitet; Tumlare; Sverige;

    Abstract : More than a third of the earths marine mammal species are threatened. This study aims to analyze and evaluate the conservation of the proper Baltic harbour porpoisein Sweden. The population is estimated to consist of only 500 individuals and are likely to be extinct if measures are not taken. READ MORE

  3. 2. Pearls as bycatch mitigation strategy for Harbour porpoise (Phoecena phoecena)

    University essay from SLU/Dept. Of Aquatic Resources

    Author : Sara Gustafsson; [2020]
    Keywords : harbour porpoise; bycatch mitigation; acoustic reflector; pearl; gillnet; F-POD; click rate; click behaviour; inter-click-interval; terminal buzz; diel phase; GAM;

    Abstract : One of the major threats to harbour porpoise population sustainability is thought to be the high incidence of bycatch specifically in gillnets. This study aims to examine the use of acrylic class pearls developed in an earlier study as acoustic reflectors on gillnets in an effort to increase their visibility to echolocating harbour porpoises in the lumpsucker fishery in Kattegatt. READ MORE

  4. 3. Ingen påvisad förekomst av cetacean morbillivirus hos svenska tumlare

    University essay from SLU/Dept. of Biomedical Sciences and Veterinary Public Health

    Author : Elin Axelsson; [2019]
    Keywords : cetacean morbillivirus; paramyxovirus; tumlare; nestad RT-PCR;

    Abstract : Cetacean morbillivirus (CeMV) har sedan 1980-talet påvisats hos ett flertal arter av valar över hela norra halvklotet, däribland tumlare. Viruset kan delas in i flera stammar, däribland Dolphin morbillivirus och Porpoise morbillivirus (DMV respektive PMV). READ MORE

  5. 4. Harbour Porpoise Click Train Classification with LSTM Recurrent Neural Networks

    University essay from KTH/Teknisk informationsvetenskap

    Author : Filip Ärlemalm; [2017]
    Keywords : ;

    Abstract : The harbour porpoise is a toothed whale whose presence is threatened in Scandinavia. Onestep towards preserving the species in critical areas is to study and observe the harbourporpoise population growth or decline in these areas. Today this is done by using underwateraudio recorders, so called hydrophones, and manual analyzing tools. READ MORE

  6. 5. Harbour porpoise (Phocoena phocoena) predation on cod (Gadus morhua) in the Kattegat : a review of current knowledge and implications for stock assessments

    University essay from SLU/Dept. Of Aquatic Resources

    Author : Adam Wallin; [2017]
    Keywords : Atlantic cod; diet; Gadus morhua; harbour porpoise; Kattegat; Phocoena phocoena; prey;

    Abstract : Kattegat is an area between Denmark and Sweden that connects the Atlantic Ocean to the Baltic Sea. It has long been an important source for fishery of cod (Gadus morhua). READ MORE