Tench

Tench

Common name: Tench
Scientific name: Tinca tinca (Linnaeus, 1758)
Family: Cyprinidae
Order: Cypriniformes
Class: Actinopterygii
Irish name: Cúramán
Irish angling record: 3.697kg (1995, Ballyeighter Lake)
Native species: No; Introduced many times since the 16th Century but prior to the 1950’s was only reproducing in the Shannon catchment and connected lakes; post-1950’s Tench were stocked into many locations for angling purposes; breeding populations still occur in these locations 5;.
Hybrids: None

Identifying features

A thick-set fish with strong fins; dorsal short, rounded, tail fin only slightly concave; Pelvic fins very large, spoon shaped and with greatly thickened anterior rays in adult males; a pair of minute barbels attached to mouth; greenish olive to brown in body colour with orange-red eyes4.

Environment and Habitat

Inhabit lake bottom and water column; migrate within freshwater only1; inhabits ponds and lakes and sometimes the slow-flowing, lowland stretches of rivers; hardy fish - can survive low oxygen conditions and tolerate short periods out of water2;

European distribution

Widespread across Europe; found in many midland Irish coarse waters and at other disparate locations nationally;

Economic value in Ireland

Valuable for coarse angling tourism

Red list status

Least concern

Irish legislation status

Protected by Coarse Fish bye-law No. 806, 2006: maximum 4 fish per angler per day; no killing of coarse fish > 25cm.

EU legislation status

Unprotected