Bibliographic Detail
Fredriksen, S. & Kile, M.R., 2012
Reference:
Fredriksen, S. & Kile, M.R. (2012). The algal vegetation in the outer part of Isfjorden, Spitsbergen: revisiting Per Svendsens sites 50 years later. Polar Research 31: [1-9].
Abstract:
The benthic algal vegetation was investigated at two different sites in the outer
part of Isfjorden, Svalbard, during 2729 July 2007. One exposed site at Kapp
Linne´ and one sheltered site in Ymerbukta were sampled both in the littoral
and sublittoral zones. A total of 83 different taxa were recorded, 81 from the
sublittoral and 40 from the littoral zone. The sublittoral zones at the two sites
did not differ much in terms of the taxa recorded, but the number of species in
the littoral differed between the two sites: Kapp Linne´ had 39 while only five
species were found in Ymerbukta. The results are compared to a survey made
by Per Svendsen in 1954 and 1955 in order to seek any changes in the
diversity. Even though the number of species is difficult to compare directly,
we registered a higher species number than Svendsen did 50 years ago. The
difference seemed more pronounced in the littoral zone than in the sublittoral.
Possible explanations for the differences between the two investigations are
discussed. Two species not previously recorded in Svalbard, Antithamnionella
floccosa and Litosiphon laminariae, were registered.
