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Porpoise.org Porpoise Conservation Society
  • About Porpoises
    • Harbour Porpoise
    • Dall’s Porpoise
    • Spectacled Porpoise
    • Burmeister’s Porpoise
    • Vaquita
      • Species Profile
      • Save the Vaquita Porpoise
    • Narrow-Ridged Finless Porpoise
    • Indo-Pacific Finless Porpoise
    • Knowledge Base
    • Research Library
  • What we do
    • Our Mission
    • Research
      • Research Overview
      • Land-Based Study
    • Outreach & Interpretation
    • Not a Dolphin Podcast
  • Get Involved
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    • Adopt a Porpoise
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Porpoise Research Library

Showing entries tagged with "north sea". 2 entries found.
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  • All species
  • P. spinipinnis 92
  • P. dalli 131
  • P. phocoena 729
  • N. phocaenoides 97
  • N. asiaeorientalis 181
  • P. dioptrica 46
  • P. sinus 123
  • Date added
  • Year of publication

Trends of harbour porpoise (Phocoena phocoena) density in the southern North Sea

Peschko, Verena; Ronnenberg, Katrin; Siebert, Ursula; Gilles, Anita
Ecological Indicators (2016)

In the southern North Sea, harbour porpoise occurrence increased in recent years after a phase of low abundances during earlier decades. Only very few studies on porpoise presence in the…

  • Phocoena phocoena
  • abundance
  • north sea
  • population trends

Abundance of harbour porpoise and other cetaceans in the North Sea and adjacent waters

Hammond, P.S.; Berggren, P.; Benke, H.; Borchers, D.L.; Collet, A.; Heide-Jørgensen, M.P.; Heimlich, S.; Hiby, A.R.; Leopold, M.F.; Øien, N.
Journal of Applied Ecology (2002)

The status of small cetaceans in the North Sea and adjacent waters has been of concern for many years. Shipboard and aerial line transect surveys were conducted to provide accurate…

  • Phocoena phocoena
  • abundance
  • conservation
  • north sea

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