Careful with your catch
I think recent advice I have received should be distributed to as many fishermen as possible. This small grilse (pictured right) was caught on the South Esk at the end of August. The vent was extended and bleeding. We were advised by Tom Marshall, a well-known salmon fisherman, that the cause was liver fluke, which had affected the fish’s liver. It is caused by the fish scavenging on the seabed due to the lack of its normal diet of sand eels and shrimp. The fish should be frozen for at least 24 hours (to at least minus 20 deg C) before gutting to kill the parasites. Failure to do so could result in the liver fluke transferring to humans. Once frozen and cleaned, the fish is edible. It may also be worth reporting cases of liver fluke to beat administrators to assess the extent of the problem.
Alan Jones, Kincardineshire
A bleeding vent may indicate liver fluke.