Sardine cisco (Coregonus sardinella) fish species and information / pictures of Sardine cisco - Coregonus sardinella

Sardine cisco (Coregonus sardinella) fish species information

Scientific Name
Coregonus sardinella

Common Name
Sardine cisco

Biology
Dorsal spines (total): 0; Dorsal soft rays (total): 12-14; Anal spines: 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.

Classification

Classified By

Valenciennes, 1848

Class

Ray-finned fishes (Actinopterygii)

Order

Salmons (Salmoniformes)

Family

Salmonids (Salmonidae)

Distribution

Region

North America

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).

Range

78°N - 42°N

Environment

Climate

Polar

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

Unknown m

Depth To - meters

Unknown m

Zone

pelagic-neritic

Environment

Marine; freshwater; brackish; pelagic-neritic; anadromous (Ref. 51243)

Trophic Level

3.24 s.e. 0.50 Based on diet studies.

Occurs in Marine / Salt water

True

Occurs in Brackish water

True

Occurs in Fresh Water

True

Occurs on Reefs

False

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

47.0 cm

Common Length

23.0 cm

Phylogenetic Diversity Index

PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries: commercial; gamefish: yes

Vulnerability

Moderate vulnerability (41 of 100)

Resilience

Medium, minimum population doubling time 1.4 - 4.4 years (K=0.40; tm=2-4; tmax=11; Fec=2,500)

Threat To Humans

Harmless

IUCN Red List Status