Data Zone
The site was identified as internationally important for bird conservation 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 List | Season (year/s of estimate) | Size | IBA criteria |
|---|---|---|---|---|
| Long-tailed Duck Clangula hyemalis | VU | passage (2004–2014) | 600–1,100 birds | A1 |
| Common Eider Somateria mollissima | NT | passage (2004–2014) | 1,200–4,000 birds | B1i |
| Velvet Scoter Melanitta fusca | VU | passage (2004–2014) | 700–1,000 birds | A1 |
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 poor | high | very low |
| Whole site assessed? | State assessed by | Accuracy of information | |
| yes | population | good | |
| State (condition of the trigger species' populations) | |||||
|---|---|---|---|---|---|
| Species | Actual vs Reference (units) | % remaining | Result | ||
| Long-tailed Duck Clangula hyemalis | 508 / 1,100 (birds) | 47 | poor | ||
| Common Eider Somateria mollissima | 1,817 / 4,000 (birds) | 46 | poor | ||
| Velvet Scoter Melanitta fusca | 118 / 1,000 (birds) | 12 | very poor | ||
| Pressure (threats to the trigger species and/or their habitats) | ||||
|---|---|---|---|---|
| Threat | Timing | Scope | Severity | Result |
| Human intrusions and disturbance | happening now | most of population/area (50–90%) | slow decline (1–10% over 3 generations) | high |
| Energy production and mining | happening now | some of population/area (10–49%) | slow decline (1–10% over 3 generations) | medium |
| Residential and commercial development | likely in long term (>4 years) | some of population/area (10–49%) | rapid decline (>30% over 3 generations) | medium |
| Transportation and service corridors | likely in long term (>4 years) | few individuals/small area (<10%) | slow decline (1–10% over 3 generations) | low |
| Response (conservation actions taken for the trigger species and/or their habitats) | |||
|---|---|---|---|
| Designation | Planning | Action | Result |
| Some of area covered (10–49%) | No management planning has taken place | Very little or no conservation action taking place | very low |
| Year | Protected Area | Designation (management category) | % coverage of IBA |
|---|---|---|---|
| 2003 | Vinnan og Velvangen | Dyrefredningsområde (IV) | 4 |
| 2008 | Vikanbukta | Dyrefredningsområde (IV) | 2 |
| Habitat | % of IBA | Habitat detail |
|---|---|---|
| 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 28/12/2024.