The Acigol Killifish or Acigol Toothcarp was endemic to a few spring-fed streams around the edge of Lake Acigol in Turkey.
It tolerates the sulphurous springs and lake salinity and used to migrate between springs when spawning. Now it is restricted to one
spring, limiting genetic diversity.
Female
Male
It is now critically endangered by the drying up of its previous springs through water extraction for farming/sulphur
and climate change. Its survival is also threatened by introduced Mosquitofish, live-bearers that eat its eggs. ZSL's Whipsnade
is breeding one of a few small survival populations, but there will be no habitat to re-introduce them.