Blar i Brage IMR på forfatter "Breggren, Per"
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The distribution and abundance of harbour porpoises and other small cetaceans in the North Sea and adjacent waters
Hammond, Philip S.; Benke, Harald; Breggren, Per; Collet, Anne; Heide-Jørgensen, Mads Peter; Heimlich-Boran, Sara; Leopold, Mardik; Øien, Nils (ICES CM Documents;1995/N:10, Working paper, 1995)To provide accurate and precise estimates of abundance for harbour porpoises and other small cetaceans throughout the North Sea and adjacent waters, an intensive shipboard and aerial sightings survey was conducted in ... -
The distribution and abundance of harbour porpoises and other small cetaceans in the North Sea and adjacent waters
Hammond, Philip S.; Benke, Harald; Breggren, Per; Collet, Anne; Heide-Jørgensen, Mads Peter; Heimlich-Boran, Sara; Leopold, Mardik; Øien, Nils (ICES CM Documents;1995/N:10, Working paper, 1995)To provide accurate and precise estimates of abundance for harbour porpoises and other small cetaceans throughout the North Sea and adjacent waters, an intensive shipboard and aerial sightings survey was conducted in ...