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Location Norway, Finnmark
Central coordinates 28o 27.00' East  70o 30.00' North
IBA criteria A1, A4i, A4iii, B1i
Area 3,700 ha
Altitude 0 - 20m
Year of IBA assessment 2014

Norsk Ornitologisk Forening

Site description The large estuary of the Tana river in the Tanafjord, with extensive areas of shallow water, intertidal sand and gravel-banks, and subarctic coastal meadows. The biggest banks and meadows are east of the main river course. Høyholmen is a grass-covered islet in the estuary. Leirpollen is a small cove to the east.

Key Biodiversity A very important site for seaduck outside the breeding season. Most males of the north-western European population of Mergus merganser gather to moult here, or move here after moulting at fjords in Finnmark, in August-September. Unfortunately no reliable counts of this species have been made since the late 1980s. The number may be much lower now, possibly below 10,000 individuals. Species of global conservation concern which do not meet IBA criteria: Haliaeetus albicilla (common non-breeder in spring and summer; max. 7 on passage). The delta is also a notable staging ground for migrating geese (especially Anser fabalis), ducks and waders; other notable species are Falco rusticolus (frequently seen in spring and summer) and Calidris maritima (up to 500 in winter).

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Long-tailed Duck Clangula hyemalis winter  2008-2013  1,000-4,000 individuals  medium  A1  Vulnerable 
Red-breasted Merganser Mergus serrator non-breeding  2010-2014  1,000-2,000 individuals  medium  B1i  Least Concern 
Goosander Mergus merganser non-breeding  2010-2013  21,000 individuals  good  A4i, B1i  Least Concern 
A4iii Species group - waterbirds non-breeding  2010-2014  22,000-23,000 individuals  good  A4iii   

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Tanamunningen Nature Reserve 3,409 is identical to site 3,360  
Tanamunningen Wetlands of International Importance (Ramsar) 3,360 is identical to site 0  


IUCN habitat Habitat detail Extent (% of site)
Grassland Alpine, subalpine and boreal grassland  5%
Coastline Mud flats & sand flats; Tidal rivers & enclosed tidal waters  95%

Land use

Land-use Extent (% of site)
hunting -

Protection status National High International None3,360 ha of IBA covered by Nature Reserve (Tanamunningen, 3,360 ha).

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Tanamunningen. Downloaded from on 28/10/2016

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