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The site was identified as important in 2014 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.

Populations meeting IBA criteria ('trigger species') at the site:

Species	Red List1	Season	Year(s)	Size	IBA criteria
Long-tailed Duck Clangula hyemalis	VU	winter	2005-2014	500-1,200 individuals	A1
Velvet Scoter Melanitta fusca	VU	passage	2008-2014	70-200 individuals	A1

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2014) may differ.

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2014. The most recent assessment (2019) is shown below.

State (condition of the trigger species' populations)
Species	Reference	Actual	Units	% remaining	Result
Long-tailed Duck Clangula hyemalis	1,200	1,000	individuals	84	near favourable
Velvet Scoter Melanitta fusca	200	150	individuals	75	near favourable

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Agricultural expansion and intensification	happening now	small area/few individuals (<10%)	no or imperceptible deterioration	low
Transportation and service corridors	happening now	small area/few individuals (<10%)	no or imperceptible deterioration	low
Human intrusions and disturbance	happening now	small area/few individuals (<10%)	no or imperceptible deterioration	low
Pollution	happening now	small area/few individuals (<10%)	no or imperceptible deterioration	low

Response (conservation actions taken for the trigger species and/or their habitats)
Protected areas	Management plan	Other action	Result
Little/none of site covered (<10%)	Not assessed	Not assessed	negligible

Year	Protected Area	Designation	% overlap with IBA
2000	Latharimoen	Naturreservat	<1

Habitat1	Habitat detail	% of IBA
Marine Coastal/Supratidal		60
Marine Intertidal		35
Marine Neritic		5

1. IUCN Habitat classification.

Land use	% of IBA
not utilised	major (>10)
unknown	major (>10)
tourism/recreation	minor (<10)
urban/industrial/transport	minor (<10)
fisheries/aquaculture	-

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Altaelvmunningen (Norway). Downloaded from https://datazone.birdlife.org/site/factsheet/altaelvmunningen-iba-norway on 23/11/2024.