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 | passage | 2004-2014 | 600-1,100 individuals | A1 |
Common Eider Somateria mollissima | NT | passage | 2004-2014 | 1,200-4,000 individuals | B1i |
Velvet Scoter Melanitta fusca | VU | passage | 2004-2014 | 700-1,000 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.
IBA conservation assessment | |||
---|---|---|---|
Year of assessment | State | Pressure | Response |
2019 | very unfavourable | high | negligible |
Whole site assessed? | State assessed by | Accuracy of information | |
yes | population | good |
State (condition of the trigger species' populations) | |||||
---|---|---|---|---|---|
Species | Reference | Actual | Units | % remaining | Result |
Long-tailed Duck Clangula hyemalis | 1,100 | 508 | individuals | 47 | unfavourable |
Common Eider Somateria mollissima | 4,000 | 1,817 | individuals | 46 | unfavourable |
Velvet Scoter Melanitta fusca | 1,000 | 118 | individuals | 12 | very unfavourable |
Pressure (threats to the trigger species and/or their habitats) | ||||
---|---|---|---|---|
Threat | Timing | Scope | Severity | Result |
Human intrusions and disturbance | happening now | majority/most of area/population (50-90%) | slow but significant deterioration | high |
Residential and commercial development | likely in long term (beyond 4 years) | some of area/population (10-49%) | very rapid to severe deterioration | medium |
Energy production and mining | happening now | some of area/population (10-49%) | slow but significant deterioration | medium |
Transportation and service corridors | likely in long term (beyond 4 years) | small area/few individuals (<10%) | slow but significant deterioration | low |
Response (conservation actions taken for the trigger species and/or their habitats) | |||
---|---|---|---|
Protected areas | Management plan | Other action | Result |
Some of site covered (10-49%) | No management planning has taken place | Very little or no conservation action taking place | negligible |
Year | Protected Area | Designation | % overlap with IBA |
---|---|---|---|
2003 | Vinnan og Velvangen | Dyrefredningsområde | 4 |
2008 | Vikanbukta | Dyrefredningsområde | 2 |
Habitat1 | Habitat detail | % of IBA |
---|---|---|
Marine Neritic | 80 | |
Marine Intertidal | 18 |
Land use | % of IBA |
---|---|
fisheries/aquaculture | 20 |
urban/industrial/transport | 5 |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Stjørdalsfjord (Norway). Downloaded from
https://datazone.birdlife.org/site/factsheet/stjørdalsfjord-iba-norway on 23/11/2024.