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Location Turkey, Afyon,Denizli
Central coordinates 29o 56.00' East  38o 14.00' North
IBA criteria A1, A4i, A4iii, B1i, B2
Area 9,725 ha
Altitude 821 m
Year of IBA assessment 2004

Doga Dernegi (Partner Designate)

Site description Situated at the head of the Büyük Menderes river south of Akdað (IBA 019), this freshwater lake (max. depth 7 m) is fed by streams and springs. The lake stores irrigation water for the surrounding agricultural plains, and high water-levels mean that marsh vegetation is only present where the Kufi channel deposits silt into the lake. The IBA includes Gökgöl marshes (including a max. 300 ha lake) 3 km east of Iþýklý Gölü.

Key Biodiversity This site is important for breeding waterbirds and large numbers of wintering wildfowl. Species of global conservation concern that do not meet IBA criteria: Haliaeetus albicilla (seen throughout the year).

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Greater White-fronted Goose Anser albifrons winter  1993  8,178 individuals  B1i  Least Concern 
Red-crested Pochard Netta rufina winter  1993  931-1,060 individuals  A4i, B1i  Least Concern 
Common Pochard Aythya ferina winter  1996  13,740-18,370 individuals  A4i, B1i  Vulnerable 
Ferruginous Duck Aythya nyroca winter  1992  97 individuals  A1  Near Threatened 
Squacco Heron Ardeola ralloides breeding  30-40 breeding pairs  B2  Least Concern 
Pygmy Cormorant Microcarbo pygmaeus winter  1996  40-130 individuals  A1  Least Concern 
Common Coot Fulica atra winter  1996  25,500-190,690 individuals  A4i, B1i  Least Concern 
Whiskered Tern Chlidonias hybrida breeding  110 breeding pairs  B2  Least Concern 
A4iii Species group - waterbirds winter  21,853-211,482 individuals  A4iii   

IBA Monitoring

2015 medium near favourable negligible
Medium - based upon reliable but incomplete / partially representative data

Biological resource use hunting & collecting terrestrial animals - persecution/control happening now some of area/population (10-49%) slow but significant deterioration medium

Wetlands (inland) Standing freshwater  0 0 good (> 90%) moderate (70-90%) near favourable

Little/none of site covered (<10%)  No management planning has taken place  Some limited conservation initiatives are in place  negligible 

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Gokgol - Isik Golleri UOSA Wetlands of International Importance (Ramsar) 0 protected area contained by site 0  


IUCN habitat Habitat detail Extent (% of site)
Wetlands (inland) Standing freshwater; Water fringe vegetation  90%
Artificial - terrestrial Arable land  10%

Land use

Land-use Extent (% of site)
water management 90%
fisheries/aquaculture 50%
hunting 40%

Protection status National None International None

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Işıklı Lake. Downloaded from on 27/10/2016

To provide new information to update this factsheet or to correct any errors, please email BirdLife