Now that mesh size rules in Jersey have changed, an amnesty will collect surplus nets for donation to Ukraine's drone defence effort.
The minimum mesh sizes for static fishing nets in Jersey waters have changed as of 13 April.
Mesh sizes of less than 100mm for commercial nets and 112mm for recreational nets will be banned.
Nets that do not fit with the new regulations are now illegal and can be donated to the government's Marine Resources team.
Drop-off points are at Howard Davis Farm, and the Marine Resources Workshop at La Collette on 1 May.
The nets will be repurposed for anti-drone efforts in Ukraine, strung over buildings and landscapes, so drones can't get through.
Alex Plaster, Marine Science Research Manager says mesh size in fishing nets is an important technical management measure:
"It has a massive difference in what species it catches and how big the catch is.
"The more we fine-tune our fisheries and change our mesh sizes, the more we can make quite a difference.
"Because these monofilament nets are quite see-through, they're going to be used as anti-drone devices, so they will be used in the same shape, hung up over key infrastructure in Ukraine to stop drones from being able to come in."

Islanders reminded to check tides after Portelet rescue
Rule change for pet travel to France
Health degrees for islanders offering guaranteed employment
Complaints about Jersey's public service more than double
Islanders asked to share experience of domestic abuse cases
Jersey woman to cut hair in memory of friend who lost fight with cancer
The two damaged DFDS boats returning for May
Nominations open for Jersey's election candidates