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• Text account
• Data table and detailed info
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• Reference and further resources

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'):

Species	Current IUCN Red List Category	Season	Year(s)	Population estimate at site	IBA criteria met
Greylag Goose Anser anser	LC	passage	2009-2013	7,000-9,300 individuals	B1i
Pink-footed Goose Anser brachyrhynchus	LC	passage	2005-2014	70,000-80,000 individuals	A4i, B1i
Common Eider Somateria mollissima	NT	winter	2004-2013	2,000-5,000 individuals	B1i, B3
Horned Grebe Podiceps auritus	VU	winter	2004-2013	100-200 individuals	B1i, B2
A4iii Species group - waterbirds	n/a	passage	2005-2014	77,000-89,300 individuals	A4iii

The current IUCN Red List category may differ from that which was valid at the time of IBA criteria assessment (2014).

Protected area (PA)	PA designation	PA area (ha)	Relationship of PA with IBA	Overlap of PA with IBA (ha)
Vikaleiret	Dyrefredningsområde	3	protected area contained by site	0
Vellamelen	Dyrefredningsområde	7	protected area contained by site	0
Tynesfjæra	Dyrefredningsområde	6	protected area contained by site	0
Trondheimfjord wetland system	Ramsar Site, Wetland of International Importance	670	protected area overlaps with site	0
Rolsøya	Naturreservat	4	protected area contained by site	0
Rinnleiret	Naturreservat	113	protected area contained by site	210
Ørin	Nature Reserve	27	protected area contained by site	0
Ørin	Nature Reserve	48	protected area contained by site	49
Lundleiret	Dyrefredningsområde	8	protected area contained by site	0
Kausmofjæra	Wildlife Conservation Area	100	protected area contained by site	0
Hammeren	Naturreservat	12	protected area contained by site	40
Falstadbukta	Dyrefredningsområde	4	protected area contained by site	0
Eidsbotn	Flora and Fauna Protection Area	230	protected area contained by site	230
Eidsbotn	Dyrefredningsområde	195	protected area overlaps with site	0
Bjørga	Dyrefredningsområde	7	protected area contained by site	0
Alnes	Dyrefredningsområde	4	protected area contained by site	0

Habitat (IUCN level 1)	Habitat detail	Extent (% of site)
Marine Neritic		-
Marine Intertidal		-

For more information about the IUCN Habitat classification, please click here.

Land-use	Extent (% of site)
military	-
nature conservation and research	-
tourism/recreation	-
urban/industrial/transport	-
hunting	-

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Recommended citation
BirdLife International (2023) Important Bird Area factsheet: Inner Trondheimsfjord. Downloaded from http://datazone.birdlife.org/site/factsheet/inner-trondheimsfjord-iba-norway on 30/11/2023.