Hoofdreferentie | Hart, J.L., 1973 |
Uiterlijke beschrijving verwijst naar | |
Bones in OsteoBase |
Gespecialiseerde organen | |
Verschillende uiterlijke vorm | |
Verschillende kleuren | |
Opmerkingen |
Opvallende kenmerken | none |
Laterale lichaamsvorm | fusiform / normal |
Dwarsdoorsnede | compressed |
Dorsaal kopprofiel | clearly convex |
Type ogen | more or less normal |
Type muil/snuit | more or less normal |
Positie van de muil | terminal |
Type of scales | |
Diagnose |
Both the sockeye and the kokanee are distinguished by the long, fine, serrated, closely spaced gill rakers on the first arch that number between 30 and 40, and by its lack of definite spot on the back and tail (Ref. 27547). Body fusiform, streamlined, laterally compressed, body depth moderate, slightly deeper in breeding males (Ref. 6885). Head bluntly pointed, conical, eye rather small, position variable with sex and condition; snout rather pointed (Ref. 6885). Lateral line straight (Ref. 27547). Pelvic fins with axillary process; caudal emarginate (Ref. 27547). Pre-spawning fish are dark steel blue to greenish blue on the head and back, silvery on the sides and white to silvery on the belly; no definite spots on the back, although some individuals may have dark speckling and irregular marks on the dorsal fin (Ref. 27547). At spawning, the head of the males becomes bright to olive green, with black on the snout and upper jaw; the adipose and anal fins turn red and the paired fins and tail generally become grayish to green or dark; females are generally less brilliantly colored than males (Ref. 27547). Various populations may show less brilliant colors, and a few turn dull green to yellowish, with little if any red (Ref. 27547). |
Gemak van identificatie |
Laterale lijnen | Onderbroken: No |
Aantal schubben op laterale lijn | |
Aantal geperforeerde schubben op laterale lijn | 120 - 150 |
Aantal schubben in lateral serie | |
Aantal rijen schubben boven laterale lijn | |
Aantal rijen schubben onder laterale lijn | |
Aantal schubben rond staartsteel | |
Baarddraden | 0 |
Kieuwspleten (enkel bij haaien en roggen) | |
Kieuwdoornen | |
op onderste gedeelte | |
op bovenste gedeelte | |
totaal | 28 - 40 |
Wervels | |
preanaal | |
totaal | 56 - 67 |
Eigenschappen | no striking attributes |
Aantal vinnen | 1 |
Aantal bijvinnen | Dorsal 0 - 0 |
Ventral 0 - 0 | |
Totaal aantal stekels | 0 - 0 |
Totaal aantal zachte vinstralen | 11 - 16 |
Vetvin | present |
Eigenschappen | other (see remark); more or less normal |
Aantal vinnen | 1 |
Totaal aantal stekels | 0 - 0 |
Totaal aantal zachte vinstralen | 13 - 18 |
Pectorale vinnen | Eigenschappen more or less normal |
stekels 0 | |
Zachte vinstralen 11 - 21 | |
Pelvische vinnen | Eigenschappen more or less normal |
Positie abdominal behind origin of D1 | |
stekels 0 | |
Zachte vinstralen 9 - 11 |