| dc.description.abstract | The Institute of Marine Research monitored kelp communities on kelp-harvesting fields in
Møre og Romsdal and Sør-Trøndelag in April 2014. The monitoring was performed by
underwater video, along 1-2 transects in every field classified into category D, targeted for
kelp-harvesting in the period 1 October 2014 – 30 September 2015, as well as reference
stations where kelp harvesting is prohibited.
On most D-fields in Møre og Romsdal the kelp vegetation generally appeared in a healthy
state, with an average Laminaria hyperborea coverage of around 80% and few sea urchins.
The recovery after previous kelp harvesting in Møre og Romsdal four years earlier appeared
limited in some fields (20D at Giske and 39D at Sande), and new harvest on those fields is not
recommended before 1 May 2015.
In Sør-Trøndelag the condition of the kelp-vegetation varied between regions. On D-fields at
Hitra (1D), Frøya (55D, 60D, 65D), as well as south on the Fosen peninsula (70D, 75D, 80D),
the kelp vegetation was not considered suitable for harvesting in 2014-2015, mainly due to
limited stocks of Laminaria hyperborea and presence of sea urchins (Echinus esculentus).
The regrowth after previous kelp harvesting and/or storm surging appeared limited at certain
D-fields in Sør-Trøndelag, particularly 16D, 26D, 100D, 110D and 115D, and kelp harvesting
on those fields is not advisable before 1 May 2015. | nb_NO |
