The Ukrainian stickleback (Pungitius platygaster) is a relative of widespread in Belarus nine-spnied stickleback, but could be easily distinguished by the absence of bone plates covering the sides. This species passed into Belarus through the Dnieper river. It was registered in our country first time in 2007 in lower Belarusian part of Dnieper near Nizhniye Zhary village. Recent years we caught a very little number of this fish, but this year the sticklebacks were quite numerous. We suppose the abundsnce of submerged riparian plants made the habitat more suitable for this fish.
The endangered Roanoke logperch is a member of the darter subgenus Percina, all of which flip stones with their snouts to expose hidden prey (mostly immature aquatic stages of insects). From Roanoke River, Montgomery County, VA. Noel Burkhead, USGS.
These fish are well camouflaged in the red-diminished light at depth. They come to life though when you light them up with a strobe.Most gunards live in deep water but you occasionally find them in estuaries like this one in Sydney Harbour. They have interesting pectoral fins; the front few rays of each fin have been adapted for walking, a bit like lobster legs, whilst the back rays form a colourful flat structure like the blue-edged fins in this eastern spiny gunard.