Morphology Data of Gadus macrocephalus
Identification keys
Main Ref. Cohen, D.M., T. Inada, T. Iwamoto and N. Scialabba, 1990
Appearance refers to
Bones in OsteoBase

Sex attributes

Specialized organs
Different appearance
Different colors

Descriptive characteristics of juvenile and adult

Striking features none
Body shape lateral fusiform / normal
Cross section oval
Dorsal head profile more or less straight
Type of eyes more or less normal
Type of mouth/snout more or less normal
Position of mouth terminal
Type of scales

Distinguished by the presence of 3 dorsal and 2 anal fins, a long chin barbel (about 3/4 as long as the eye diameter in young, longer than eye diameter in adults), and a space between the second and third dorsal fins that is shorter than the eye diameter (Ref. 27547). Lateral line with a prominent arch under the 1st and 2nd dorsal fins, is straight toward the tail, ending under the 3rd dorsal (Ref. 27547). Brown or gray dorsally, becoming paler ventrally; dark spots or vermiculating patterns on the sides (Ref.1371). Yellow color phases are known (Ref. 27547). Fins dusky; dorsal, anal and caudal fins with white edges that are wider on anal and caudal than on dorsal (Ref. 27547).

Ease of Identification

Meristic characteristics of Gadus macrocephalus

Lateral Lines 1 Interrupted: No
Scales on lateral line
Pored lateral line scales
Scales in lateral series
Scale rows above lateral line
Scale rows below lateral line
Scales around caudal peduncle
Barbels 1
Gill clefts (sharks/rays only)
Gill rakers
on lower limb
on upper limb
total 18 - 23
total 49 - 55


Dorsal fin(s)

Attributes extending over most of the back length
Fins number 3
Finlets No. Dorsal   0 - 0
Ventral  0 - 0
Spines total 0 - 0
Soft-rays total 37 - 57
Adipose fin absent

Caudal fin

Attributes more or less truncate; more or less normal

Anal fin(s)

Fins number 2
Spines total 0 - 0
Soft-rays total 31 - 42

Paired fins

Pectoral Attributes  more or less normal
Spines     0
Soft-rays   19 - 22
Pelvics Attributes  more or less normal
Position    thoracic  before origin of D1
Spines     0
Soft-rays   6 - 7
Main Ref. (e.g. 9948)
Glossary ( e.g. cephalopods )
Entered by Reyes, Rodolfo B.
Modified by Garilao, Cristina V.
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cfm script by eagbayani, 17.10.00, php script by rolavides, 13/03/08 ,  last modified by sortiz, 06.27.17