Changes in electrolytes and urea of blood according to the reproduction season and body size in the Brown banded Bamboo shark (Chiloscyllium punctatum) from Persian Gulf

Alimi, Rahman; Savari, Ahmad; Movahedinia, Abdolali; Zakeri, Mohammad; Salamat, Negin

doi:10.22113/jmst.2015.9739

Changes in electrolytes and urea of blood according to the reproduction season and body size in the Brown banded Bamboo shark (Chiloscyllium punctatum) from Persian Gulf

Document Type : Original Manuscript

Authors

Rahman Alimi

Ahmad Savari

Abdolali Movahedinia

Mohammad Zakeri

Negin Salamat

Khorramshahr University of Marine Science and Technology

10.22113/jmst.2015.9739

Abstract

Cartilaginous fishes were used urea for osmoregulation of their internal fluids. There are several studies on osmoregulation of sharks but investigate the role of reproduction season and body lenght on the concentration of osmolytes is necessary. In this investigation, 36 individual of Brown banded Bamboo sharks (Chiloscyllium punctatum) in both autumn (before reproduction) and spring (period of reproduction) seasons were caught from Moussa Creek located at the northern of Persian Gulf. After weighing, biometry, sex determination and the numbering of sharks. Electrolyte analyzer and auto analyzer were used to measuring electrolyte and urea concentration. The results showed that blood osmolytes of sharks in the male and female sex were no significant differences (P>0/05). But, there was a significant difference between the concentrations of these substances in the autumn and spring season (P

Keywords

Electrolytes

Urea

Chiloscyllium punctatum

Persian Gulf