Migratory life history of European eel Anguilla anguilla from freshwater regions of the River Asi, southern Turkey and their high otolith Sr:Ca ratios


Lin Y. -., Yalcin-Ozdilek S., Iizuka Y., Gumus A., Tzeng W. -.

JOURNAL OF FISH BIOLOGY, cilt.78, sa.3, ss.860-868, 2011 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 78 Sayı: 3
  • Basım Tarihi: 2011
  • Doi Numarası: 10.1111/j.1095-8649.2011.02903.x
  • Dergi Adı: JOURNAL OF FISH BIOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.860-868
  • Anahtar Kelimeler: freshwater residence, life-history types, water chemistry, JAPANESE EEL, HABITAT USE, TEMPERATURE, STRONTIUM, CHEMISTRY, SALINITY, MOVEMENTS, JAPONICA, MARKERS, L.
  • Çanakkale Onsekiz Mart Üniversitesi Adresli: Evet

Özet

Otolith Sr:Ca ratios from 32 of 34 European eel Anguilla anguilla collected from three freshwater sites in the River Asi, southern Turkey, indicated that they were resident in fresh water without apparent exposure to salt water since the elver stage. The Sr:Ca ratio criterion indicative of residence in fresh water was more than twice that of values from other European countries. Otolith Sr:Ca ratios of A. anguilla from fresh waters can vary among regions, possibly reflecting regional-specific water chemistry. Hence, the use of Sr:Ca ratios determined in one region to interpret results from a different region might lead to misclassification of migratory life-history types.
Otolith Sr:Ca ratios from 32 of 34 European eel Anguilla anguilla collected from three freshwater sites in the River Asi, southern Turkey, indicated that they were resident in fresh water without apparent exposure to salt water since the elver stage. The Sr:Ca ratio criterion indicative of residence in fresh water was more than twice that of values from other European countries. Otolith Sr:Ca ratios of A. anguilla from fresh waters can vary among regions, possibly re?ecting regional-speci?c water chemistry. Hence, the use of Sr:Ca ratios determined in one region to interpret results from a different region might lead to misclassi?cation of migratory life-history types.