Many anglers already know about the worms of their genus Philometra, thin red worms found in the ribs of perch and not only. And it’s not surprising that black dots on the scales of rudd and perch show that worms from the genus P. Cuticola have been observing similar red thin worms in peaceful fish for two years most often in rudd, roach, and roach, the first attacking parasites most often.
Parasites can be seen with the naked eye and they are localized in the gill covers. The accumulation of these worms can be seen quite clearly in live fish, in the extreme stages the worms come straight out and the behavior of the fish becomes extremely unusual, it stays in the upper layers of the water and as if to kill itself to pounce on a hook, sometimes even empty. In this case, even if a flock of fish is at the hook, a sick fish is always the first to throw on the hook. It is as if a disease is pushing the fish to such actions.
Over the past two years, the number of infected fish has grown to enormous size. 90% of caught rudd in a catch with a distinct lesion.
Often the number of worms in one fish is simply amazing and instead of gills, one continuous lump of these worms are visible. I observe this situation in many reservoirs in Kyiv.
In order to clearly demonstrate, although it doesn’t look very aesthetically pleasing, I selected several photos, they show defeats, but they are far from the largest and most powerful of those that I met.