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River Mersey fish species

The river Mersey is once again flourishing with marine life following it’s industrial past. Below is a list of the salt water fish species in the river Mersey. Some are resident year round and others are seasonal visitors. If you are looking for what what fish you can catch in the River Mersey and when, then keep reading.


Year round resident flatfish


Year round resident flatfish


Non resident fish usually caught in the warmer months

Dover Sole

Non resident fish usually caught in the warmer months


Non resident, can be caught occasionally in the warmer months, prolific in Winter.


Non resident species available mainly during Winter


Small semi resident species, most often caught in Winter

Thornback Rays

Non resident, available in good numbers during the warmer months. Occasionally caught in mild Winters.


Non resident, can be caught year round. More abundant in Summer.

Congor Eel

Year round resident


Non resident, available in Warmer months

Tope Pups

Non resident, occasionally caught in Warmer months


Non resident, available during warmer months

Silver Eel

Resident Eel population year round

Weaver Fish

Non resident, Summer only

The saltwater species of fish in the River Mersey should in theory become slightly more diverse as it becomes cleaner. It’s is possible to see seals on a fairly regular basis and also Dolphins but very rarely.

Infrequently recorded fish species found in the River Mersey include:


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