The site was identified as important in 2005 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|
|Red-breasted Goose Branta ruficollis||VU||winter||1996||122 individuals||A1, C1|
|Greater White-fronted Goose Anser albifrons||LC||winter||1996||40,450 individuals||A4i, B1i, C3|
|Pygmy Cormorant Microcarbo pygmaeus||LC||breeding||1996||19 breeding pairs||A1, C1, C6|
The current IUCN Red List category may differ from that which was valid at the time of IBA criteria assessment (2005).
|Protected area (PA)||PA designation||PA area (ha)||Relationship of PA with IBA||Overlap of PA with IBA (ha)|
|Svishtovsko-Belenska nizina||Special Protection Area (Birds Directive)||5,440||is identical to site||5,441|
|Svishtovska gora||Site of Community Importance (Habitats Directive)||1,917||protected area is adjacent to site||0|
|Persina||Priroden Park||21,762||protected area overlaps with site||0|
|Persina||Site of Community Importance (Habitats Directive)||25,684||protected area overlaps with site||3,881|
|Kaykusha||Zashtitena Mestnost||155||protected area contained by site||0|
|Belene Islands Complex||Ramsar Site, Wetland of International Importance||18,330||protected area contains site||0|
BirdLife International (2023) Important Bird Area factsheet: Svishtov-Belene Lowland. Downloaded from http://datazone.birdlife.org/site/factsheet/svishtov-belene-lowland-iba-bulgaria on 10/12/2023.