Coregonus sardinella Valenciennes, 1848
Sardine cisco
Coregonus sardinella
photo by Runfola, D.M.

Family:  Salmonidae (Salmonids), subfamily: Coregoninae
Max. size:  47 cm TL (male/unsexed); max.weight: 555.0 g; max. reported age: 26 years
Environment:  pelagic-neritic, anadromous
Distribution:  North America: Murchison River, Canada to Bristol Bay, Alaska; ascends Yukon River to British Columbia, and Mackenzie River to Fort Simpson (Ref. 5723). Asia: Bering Sea, Chukot land and Kolyma River to Kara River on the northern end of the Urals (Ref. 593). Lakes and lower course of large rivers of Arctic Ocean basin from Pechora drainage to eastern Siberia (Ref. 59043). Belongs to Coregonus artedi complex. Occasionally hybridizes with Coregonus nelsoni (Ref. 27547).
Diagnosis:  Dorsal spines (total): 0-0; Dorsal soft rays (total): 12-14; Anal spines: 0-0; Anal soft rays: 10-13; Vertebrae: 58-64. Body elongate, somewhat compressed laterally, greatest body depth at front of dorsal fin. Head about 19 - 24 % of total length; eyes large; snout length usually less than eye diameter; mouth moderate, terminal, lower jaw always protruding, maxillary at a distinct angle, extending posteriorly to below anterior half of the eye; a small cluster of teeth present on the tongue. Overall coloration silvery, usually brown to dark green on the back, becoming silvery on sides and below. The small non-anadromous form that remains in fresh water is without spotting on the back and only the pelvic fins have black pigment on the tips., the remaining fins are unpigmented. The larger, anadromous form has dark spots on the head, back, dorsal, and adipose fins, and sometimes, on the pectoral fins; all fins have usually dark pigment on the tips.
Biology:  Adults occur in coastal waters, estuaries, large lakes and rivers (Ref. 5723). Lake-dwelling populations appear to be non-migratory, while those found in streams or brackish water move considerable distances to reach or leave spawning sites (Ref. 27547). Semi-anadromous populations forage in estuaries, lower courses of rivers, backwaters and lakes (Ref. 59043). Nerito-pelagic (Ref. 58426). Feed on planktonic crustaceans and insects (Ref. 1998); also plant material (Ref. 27547) and fishes (Ref. 58426). Do not usually feed during its spawning run (Ref. 28219, 28860, 28861). Migratory forms are observed to live longer than fresh water forms (Ref. 1998). Spawn in deep pools on sand and gravel (Ref. 59043). Flesh is said to be tasty (Ref. 1998).
IUCN Red List Status: Least Concern (LC); Date assessed: 01 January 2008 Ref. (123251)
Threat to humans:  harmless
Country info:   
 

Entered by: Froese, Rainer - 01.05.91
Modified by: Luna, Susan M. - 02.12.13
Checked by: Casal, Christine Marie V. - 09.01.03

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


Page created by Jen, 05.08.02, php script by kbanasihan 06/09/2010 ,  last modified by sortiz, 10/02/17