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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'):

Species	Current IUCN Red List Category	Season	Year(s)	Population estimate at site	IBA criteria met
Ruddy Shelduck Tadorna ferruginea	LC	winter	-	231-290 individuals	B1i
Common Pochard Aythya ferina	VU	winter	1996	18,690-24,000 individuals	A4i, B1i
Ferruginous Duck Aythya nyroca	NT	breeding	1989-1998	15-25 breeding pairs	A1, B2
Eurasian Wigeon Mareca penelope	LC	winter	1990	8,500 individuals	B1i
Common Coot Fulica atra	LC	winter	-	14,500-18,500 individuals	B1i
Common Little Bittern Ixobrychus minutus	LC	breeding	-	40-80 breeding pairs	B2
Squacco Heron Ardeola ralloides	LC	breeding	1989-1996	200 breeding pairs	B2
Purple Heron Ardea purpurea	LC	breeding	-	30 breeding pairs	B2
Dalmatian Pelican Pelecanus crispus	NT	breeding	-	10-15 breeding pairs	A1, A4i, B1i, B2
Dalmatian Pelican Pelecanus crispus	NT	winter	-	51-362 individuals	A1, A4i, B1i
Pygmy Cormorant Microcarbo pygmaeus	LC	winter	-	84-100 individuals	A1
Great Cormorant Phalacrocorax carbo	LC	winter	-	1,488-2,000 individuals	B1i
Pied Avocet Recurvirostra avosetta	LC	winter	1992	1,402 individuals	A4i, B1i
Spur-winged Lapwing Vanellus spinosus	LC	breeding	1989-1996	10 breeding pairs	B2
Whiskered Tern Chlidonias hybrida	LC	breeding	-	100-150 breeding pairs	B2
A4iii Species group - waterbirds	n/a	winter	-	24,473-45,278 individuals	A4iii

The current IUCN Red List category may differ from that which was valid at the time of IBA criteria assessment (2004).

State (condition of the trigger species' habitats)
Habitat	Habitat detail	Reference area (ha)	Actual area (ha)	Habitat quantity (% remaining)	Habitat quality (carrying capacity)	Result
Wetlands (inland)	Standing freshwater	0	0	good (> 90%)	moderate (70-90%)	near favourable

Pressure (threats to the trigger species and/or their habitats)
Threat level 1	Threat level 2	Timing	Scope	Severity	Result
Agricultural expansion and intensification	annual & perennial non-timber crops - agro-industry farming	happening now	some of area/population (10-49%)	slow but significant deterioration	medium
Biological resource use	hunting & collecting terrestrial animals - motivation unknown/unrecorded	happening now	some of area/population (10-49%)	slow but significant deterioration	medium

Response (conservation actions taken for the trigger species and/or their habitats)
Protected-area designation	Management planning	Other conservation action	Result
Whole area of site (>90%) covered by appropriate conservation designation	No management planning has taken place	Very little or no conservation action taking place	low

For more information about IBA conservation status, please click here

Protected area (PA)	PA designation	PA area (ha)	Relationship of PA with IBA	Overlap of PA with IBA (ha)
Gölmarmara Gölü	Wetland of National Importance	24,893	protected area contained by site	0

Habitat (IUCN level 1)	Habitat detail	Extent (% of site)
Wetlands (inland)	Standing freshwater, Water fringe vegetation	-
Forest		-
Other		-

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

Land-use	Extent (% of site)
agriculture	-
fisheries/aquaculture	-
water management	-
hunting	-

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Recommended citation
BirdLife International (2023) Important Bird Area factsheet: Marmara Lake. Downloaded from http://datazone.birdlife.org/site/factsheet/marmara-lake-iba-turkey on 30/09/2023.