Jökull - 01.12.2007, Side 8

Símonarson and Leifsdóttir
Continuation of Table 1.
Búlandshöfði-Stöð
Species Biogeographical Depth Salinity tolerance Búland Höfði
characteristics Member Member
NoI * % NoI * %
Bivalvia
Nuculoma tenuis Arctic-boreal Offshore b-mesohaline (>15‰) 8 1.2
(Montagu, 1808)
Nuculana pernula Arctic-subarctic Changing b-mesohaline (>15‰) ? 1 0.2
(Müller, 1779) depth
Portlandia arctica Arctic Shoreface Polyhaline (>25‰) 19 2.8
(Gray, 1824)
Musculus discors Arctic-lusitanian Foreshore/ b-mesohaline (>15‰)? 1 0.2
(Linné, 1767) tidal zone
Mytilus edulis Subarctic-lusitanian Foreshore/ Oligohaline (<5‰) 2 2.7
Linné, 1758 tidal zone
Astarte crenata Arctic Offshore ? 1 0.2
(Gray, 1824)
Tridonta borealis Arctic-boreal Changing a-mesohaline (>5‰) 129 18.9 15 20.0
Schumacher, 1817 depth
Tridonta placenta Arctic Foreshore? a-mesohaline (>5‰)? 18 2.6
(Mørch, 1869)
Tridonta elliptica Arctic-boreal Shoreface b-mesohaline (>15‰) 13 1.9 1 1.3
(Brown, 1827)
Tridonta montagui Arctic-boreal Shoreface b-mesohaline (>15‰) 41 6.0 1 1.3
(Dillwyn, 1817)
Tridonta montagui Subarctic Shoreface ? 8 1.2
striata (Leach, 1819)
Tridonta montagui warhami Arctic Shoreface ? 9 1.3
(Hancock, 1846)
Tridonta sp. 21 3.1
Arctica islandica Subarctic-lusitanian Foreshore/ a-mesohaline (>5‰) 1 1.3
(Linné, 1767) tidal zone
Ciliatocardium ciliatum Arctic-boreal Shoreface b-mesohaline (>15‰) 5 0.7 1 1.3
(Fabricius, 1780)
Serripes groenlandicus Arctic-boreal Shoreface b-mesohaline (>15‰) 20 2.9 4 5.3
(Mohr, 1786)
* Number of Individuals continues next page
6 JÖKULL No. 57