Journal of
Cell and Animal Biology

  • Abbreviation: J. Cell Anim. Biol.
  • Language: English
  • ISSN: 1996-0867
  • DOI: 10.5897/JCAB
  • Start Year: 2007
  • Published Articles: 260

Full Length Research Paper

Effect of lead on gill and liver of blue spotted ray (Dasyatis kuhlii)

Joeharnani Tresnati* and Iqbal Djawad
Fisheries Department, Faculty of Marine Science and Fisheries, Hasanuddin University. Jalan Perintis Kemerdekaan Km 10, Makassar 90245, Indonesia.  
Email: [email protected]

  •  Accepted: 07 November 2012
  •  Published: 31 December 2012

Abstract

The aim of study was to analyze the effect of lead nitrate Pb(NO3)2 on gill and liver of blue spotted rayDasyatis kuhlii using a histological observation. The rays were placed in five tanks filled by seawaterwith three fishes for each tank. Blue spotted rays, Dasyatis kuhlii were treated for 12 days by using different concentrations of lead nitrate (Pb(NO3)2), that is, 0 ppm as control (treatment A), 0.2 ppm (treatment B), 0.5 (treatment C), 0.9 ppm (treatment D) and 1.8 ppm (treatment E). The rays were placed in the tanks until all fishes exposed to Pb (treatments B to E) were dead. Results of the study show that Pb(NO3)exposure altered the gill and liver microscopic structure. Gill lamella alterations were found on hypertrophy, hyperplasia, club shaped, necrosis and formed bunch texture. Liver alterations included cloudy swelling, atrophy, necrosis, vacuolar degeneration and fatty degeneration. Death time of blue spotted ray became shorter when lead nitrate Pb(NO3)concentration increased.

 

Key words: Histological observation, seawater, lead nitrate.