Latitudinal gradients in onset date, onset temperature and duration of spawning of roach


Lappalainen J., Tarkan A. S.

JOURNAL OF FISH BIOLOGY, cilt.70, ss.441-450, 2007 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 70 Konu: 2
  • Basım Tarihi: 2007
  • Doi Numarası: 10.1111/j.1095-8649.2007.01315.x
  • Dergi Adı: JOURNAL OF FISH BIOLOGY
  • Sayfa Sayıları: ss.441-450

Özet

Onset date, onset temperature and duration of spawning of roach Rutilus rutilus were related to latitude (40-66 degrees N) and altitude (-1-825 m) based on data from the literature over the whole geographic distribution of roach. Onset date was positively and duration was negatively correlated with latitude, while no correlation was found between onset temperature and latitude. No significant correlations were found between any of the analysed variables of spawning and altitude, probably because most of the analysed populations were below 300 m altitude.