Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; demersal. Temperate
Europe: Lough Melvin (21km2) in Ireland.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 33.0 cm SL male/unsexed; (Ref. 59043)
Short description
Identification keys | Morphology | Morphometrics
Distinguished from its congeners in British Isles by its unique dark brown or black fins, especially pectorals. Differs further by the combination of the following characters: body light brown to silvery with many large spots; red spots absent or few, small, inconspicuous, restricted to posterior part of body; and body depth about 3.9-4.4 times in SL (Ref. 59043).
Body shape (shape guide): fusiform / normal.
A lacustrine and pelagic species, occurring in relatively deep water. Feeds predominantly on mid-water plankton, especially Cladocera, and chironomid pupae. Migrates to tributaries for spawning. Spawns in most lake tributaries. Attains a maximum size of up to about 33 cm SL (Ref. 59043).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Kottelat, M. and J. Freyhof, 2007. Handbook of European freshwater fishes. Publications Kottelat, Cornol and Freyhof, Berlin. 646 pp. (Ref. 59043)
IUCN Red List Status (Ref. 130435: Version 2025-2)
Threat to humans
Harmless
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