Can anyone identify this fish please? Found in shallow water in wetland area in Lake Victoria in a bay in Lutembe, nr Kampala, Uganda. Probably around 9 - 10 inches long.
This fish looks like a cichlid but i've never seen one with eyes as red as this and only a few species can reach up to 10 inches in length. It may be that it has crossbread with another species, I know that it is quite common for Zebra cichlids to do this in nature.
I believe your fish is Oreochromis leucostictus. http://www.cichlidforums.com/gallery/showphoto.php/photo/1552/title/oreochromis-leucostict/cat/502 a male, has nearly all the features, though only 3" long.
WIKIPEDIA http://en.wikipedia.org/wiki/Oreochromis says there are 38 species currently recognised, but also that "numerous undescribed forms exist" & "hybridization runs rampant making DNA analyses difficult"
Fishbase http://www.fishbase.org/summary/Oreochromis-leucostictus.html gives a description including range to 22cm (25=10") & max 36.3cm, colour olive-green to slatey black but in breeding males changes to dark blue-black; white spots are intensified; "eye outstanding with its bright amber iris crossed by a black bar" (your 2nd photo shows the bar as black). It also gives distribution, not originally in lake victoria but " Introduced from Lake Albert to Lake Victoria and fish ponds in catchment "
Fishbase also describes all 38 species; at http://www.fishbase.org/ you enter Oreochromis in the genus box. From these descriptions (including distridutions it's apparent that this is the only species that fits.
Many thanks rhossilian for your reply - I'll be in touch with Nature Uganda and get them to high-light this species in their Lutembe Bay report. Lutembe Bay is a RAMSAR site, which is being encroached by Flower farms.