Archives of Polish Fisheries

Vol. 25 Fasc. 2

  • Back

Arch. Pol. Fish.                    Vol. 25 Fasc. 2                  2017         p. 117-122

DOI 10.1515/aopf-2017-0011


Consecutive repetition of lordosis-kyphosis in silverside Atherina boyeri Risso, 1810 collected from a wild population in Homa Lagoon, Izmir, Turkey

Laith Jawad, Okan Akyol, Cemil Saglam

ABSTRACT. The incidence of severe consecutive repetition of lordosis-kyphosis involving three flexions was reported in a specimen of the atherinid fish Atherina boyeri Risso. The values for the angles lay between the lines passing through the sides of the vertebral column and enclosing the curvatures, and the depth of the curvatures of the angles was obtained. Also, the ratio of the vertebral column to the fish total length of deformed and normal specimens of this species was calculated. Possible causes for these anomalies are discussed.

Keywords: Anomalies, vertebral column, angles, abdominal vertebrae, caudal vertebrae

CORRESPONDING AUTHOR:

L. Jawad [+]
Flat Bush, Manukau, Auckland 2016, New Zealand
e-mail: laith_jawad@hotmail.com

O. Akyol, C. Saglam
Ege University Faculty of Fisheries Urla, Izmir, Turkey