Blar i ICES CM documents authored by IMR scientists (1949-2011) på forfatter "Johannessen, Tore"
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Herring larvae (Clupea harengus) investigations in the Skagerrak area, December 1987 to March 1988. A preliminary report
Moksness, Erlend; Johannessen, Tore (ICES CM Documents;1988/H:20, Working paper, 1988)From December 1987 to March 1988 two transects, Torungen - Hirtshals and Oksøy - Hanstholm, were performed once a month for sampling of herring larvae. The gear used was a 9 feet Isaac-Kid Midwater trawl sampling in the ... -
The Norwegian in-year monitoring fishery for sandeel in the North Sea using satellite-based VMS data and landings information
Salthaug, Are; Johannessen, Tore (ICES CM documents, Working paper, 2006)Due to the critically poor status of the sandeel stock in the North Sea, the Norwegian Ministry of Fisheries and Coastal Affairs decided to conduct a monitoring fishery in April/May 2006 with a limited number of Norwegian ... -
Repeated observations of abrupt and persistent recruitment collapses in gadoids – a potential scenario in relation to climate change?
Johannessen, Tore (ICES CM documents;2010/S:19, Working paper, 2010)Management, surveillance and studies of ecosystems and their constituent species are generally based on the assumption of simple dose-response relationships. Gradual environmental changes or perturbations are expected ...