Size, age, growth and mortality of the green sea urchin Strongylocentrotus droebachiensis in Vega and Hammerfest, Norway.

• Main Author: Stadniczeñko, Sandra Gran
• Other Authors: Stein Fredriksen, Kjell Magnus Norderhaug
• Format: Master Thesis
• Language: English
• Published: 2011
• Subjects: VDP::480; Bare Rock; Norway; Hammerfest
• Online Access: http://hdl.handle.net/10852/11610; http://urn.nb.no/URN:NBN:no-28874

Since the late 1960’s the green sea urchin Strongylocentrotus droebachiensis (O.F. Müller)has grazed down large areas of kelp forest from the county of Trøndelag to the Russian border. This comprises a coastal area of more than 2000 km2 with a large proportion of barren areas which are characterized...