Fróðskaparrit - 01.01.2009, Blaðsíða 171

EVNAFRØÐILIGAR BLEYTBOTNSDÁTUR Á FØROYSKUM HAVØKI:
LÍVRUNNIÐ TILFAR, NITROGEN, FOSFOR, SINK OG KOPAR
169
LOI Nitrogen Phosphorus Zinc Copper
% g/kg g/kg mg/kg mg/kg
SK05 (2000) 7.7 2.8 1.0 58.2 57.5
SK0S (2001) 8.1 3.6 7.4 76.8 75.2
SKOS (2003) 13.3 4.3 1.3 80.0 82.3
SK07 (2000) 12.6 4.7 7.4 87.0 88.4
SK09 (2000) 13.1 4.9 7.5 89.7 96.3
KA0S (2000) 9.4 3.6 1.1 61.8 72.0
KA0S (2001) 9.5 3.7 7.3 64.7 69.7
KA0S (2003) 12.7 4.0 1.4 72.8 73.9
KA09 (2000) 70.0 3.1 7.1 58.7 79.8
KA09 (2001) 8.7 3.1 7.2 63.3 70.9
KO07 (2000) 6.8 2.4 7.7 58.9 64.8
SUOS (2000) 9.4 2.9 0.8 48.4 64.8
SU0S (2001) 7.3 2.8 7.0 48.5 49.4
SU0S (2003) 9.4 2.6 0.9 54.3 53.9
SU1S (2000) 9.3 2.7 7.0 52.0 55.8
Table 6. LOI, total-nitrogen, total-phosphorus, zinc ; ind copper values in sediments from Skálafjørður,
Kaldbaksfjørður, Kollafjørður and Sundini. Years are shown in brackets. Data from Hoydal and Dam (2004).
(Húsavík, Hvalba and Tjørnuvík) have ex- ln Table 7, there are two groupings. The
posed bays and have a low population. Har- first five locations are from outlying regions
aldssund, Árnafjørður, Sundini and Kald- of the archipelago, while the last three are
baksfjørður are low-population areas, but more centrally located.
are used for aquaculture, which is known as In the first grouping (outlying regions),
a source of high organic input. Skálafjørður is two replicate samples were taken at differ-
a sheltered sill fjord with a relatively high ent depths and the number of stations taken
population and has also been used for aqua- at each site was from 2-4 (Table 7). Samples
culture purposes. were taken by either scuba diver, gravity core
n Sediment Cear LOI Nitrogen Phosphorus Z/nc Copper
% g/kg g/kg mg/kg mg/kg
Haraldssund 8 Sand/Cravel Core 5.8 1.0 0.7 50 80
Hvalba 6 Sand/Cravel Crab 3.6 0.4 0.8 55 58
Arnafjørður 8 Mixed Core 4.9 0.9 0.5 41 59
Húsavik 4 Mixed Core 2.4 0.4 0.9 74 82
Tjørnuvik 8 Sand/Cravel Core 2.7 0.3 0.7 57 80
Sundini (SUOS) 2 Core 7.5 2.2 0.9 60 77
Kaldbaksfjørður (KA0S) 2 Core 70.7 3.6 7.6 85 110
Skálafjørður (SK05) 2 Core 73.0 4.7 1.4 91 109
Table 7. Mean values for LOI, total-nitrogen, total-phosphorus, zinc and copper from eight Faroese fjord/bay
locations. Data from Johansen (2006).