Morphological characteristics of Arctic charr, Salvelinus alpinus (L. 1758) from the Hornsund area of Vest Spitsbergen

Tomasz Heese
1993 Acta Ichthyologica et Piscatoria  
Tomasz HEESE E T PISCATORIA Szczecin 1993 MORPHOLOGICAL CHARACTERISTICS OF ARCTIC CH.ARR, SAL VELINUS ALPINUS (L, 1758) FROM Tim HORNSUND AREA OF VEST SPITSBERG EN CHARAKTERYSTYKA MORFOLOGICZNA SAL VELINUSALPINUS (L., 1758) SPITSBERGENU ZACHODNIEG O -REJ O N HORNSUNDU of E:1nmmmentlll Biology tm.d Chemmey TeclmiCIII. Umvemty, K� Morphological characteristics of Arctic charr (Salvelinus al pinus) are presented. Meristic and plastic characters were treated statistically. Males and
more » ... y. Males and females were found to differ in 8 plastic characters, all related to head structure and fin length. Males had more massive and longer jaws and a longer snout as well as longer pectoral, ventral, and dorsal fins. The mean arch gill raker and pyloric caeca counts in the population studied are 26.42 and 37. 76, respectively. The Spitsbergen Arctic charr is regarded as a typical form of Salvelinus alpinus (L. ) ,
doi:10.3750/aip1993.23.s.03 fatcat:inw3dis3szavbipqrfdm2ouwi4