Percarina demidoffii Nordmann, 1840
photo by Otel, V.

Family:  Percidae (Perches), subfamily: Percinae
Max. size:  10 cm SL (male/unsexed)
Environment:  benthopelagic
Distribution:  Europe: Northwestern Black Sea basin in estuaries and coastal lakes, Danube, Dniestr, South Bug and Dniepr and their lower reaches.
Diagnosis:  Dorsal soft rays (total): 10-13; Anal spines: 2-2; Anal soft rays: 8-11; Vertebrae: 33-33. Distinguished from Percarina maeotica by its unique character of having scaleless cheek. Differs further by the combination of the following characters: body and fin membranes almost transparent; back milky white without dark spots; 8-9 greyish round or irregularly-shaped blotches along base of dorsal fins (Ref. 59043). Description: D IX-XII, II-III 10-13; A II 8-11 (Ref. 2058).
Biology:  Occurs in groups in fresh and brackish waters with salinities up to 7 ppt, abundant at depths around 5 m over black mud. Feeds predominantly on benthic invertebrates. Spawns in coastal waters close to river mouths, over mud bottom. Spawning occurs in May-June. More or less abundant in lower reaches of rivers and coastal lagoons but increased salinity resulting from reduced flow in all large rivers, which are now dammed, may pose threat to its population (Ref. 59043).
IUCN Red List Status: Near Threatened (NT); Date assessed: 05 March 2010 Ref. (119314)
Threat to humans:  harmless
Country info:   

Entered by: Froese, Rainer - 15.04.94
Modified by: Reyes, Rodolfo B. - 18.07.13

Source and more info: For personal, classroom, and other internal use only. Not for publication.

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