Data Zone
The site was identified as important in 2004 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 |
|---|---|---|---|---|---|
| Greater Scaup Aythya marila | LC | winter | 2003 | present | A4i |
| A4iii Species group - waterbirds | n/a | winter | 2003 | min 20,000 individuals | A4iii |
1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2004) may differ.
Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2004. The most recent assessment (2015) is shown below.
| IBA conservation assessment | |||
|---|---|---|---|
| Year of assessment | State | Pressure | Response |
| 2015 | not assessed | not assessed | negligible |
| Whole site assessed? | State assessed by | Accuracy of information | |
| yes | unset | - | |
| 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%) | No management planning has taken place | Very little or no conservation action taking place | negligible |
| Year | Protected Area | Designation | % overlap with IBA |
|---|---|---|---|
| 2003 | Common fishery right area(Nagasaki) | 共同漁業権区域 | 30 |
| 2008 | Honmyogawa | 都道府県指定鳥獣保護区 | 49 |
| Habitat1 | Habitat detail | % of IBA |
|---|---|---|
| Marine Coastal/Supratidal | major (>10) | |
| Marine Intertidal | major (>10) | |
| Marine Neritic | major (>10) |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Isahaya bay (Japan). Downloaded from
https://datazone.birdlife.org/site/factsheet/isahaya-bay-iba-japan on 23/11/2024.