from May 21, 2018 you can catch on a boat. Not everywhere, but you can. For example, on the rivers of most of Ukraine, where the spawning ban ended.
The duration of the season of boat fishing in 2018 – before the closure of navigation and this circumstance will be considered necessarily.
When fishing from the boat is prohibited in Ukraine
In Ukraine there are how much restrictions on fishing from the boat:
Catching from the boat is prohibited during the time when navigation is closed. In detail with this question you can understand by clicking on the link.
Also, during the spawning ban, which you can see by clicking on the following link.
The third limitation is related to the water temperature. According to the rules of navigation, this is allowed at a water temperature above 15 degrees Celsius.
Separately, you need to be warned – fishing from a boat in Ukraine is allowed only with observance of the general rules of navigation in inland waters of Ukraine. And this implies the registration of the boat (if the boat has a length of more than 270 centimeters, or motor) and obtaining the rights to control, if the boat is motor. Without these documents, you can lose your property, and the fish caught by you can be recognized as illegally obtained. For these violations, you can apply to both administrative punishment, and criminal.