Fish scales as a non-lethal tool of the toxicity of wastewater from the River Chenab

Journal Article

, Tayyaba Sultana, Amir Siddique, Salma Sultana, Shahid Mahboob, Khalid Al-Ghanim and Z. Ahmed . 2016

• نوع عمل المنشور: Research Article
• رابط المنشور على الويب: Fish scales as a non-lethal tool of the toxicity of wastewater from the River Chenab
• المجلة \ الصحيفة: Environ. Sci. Pollut. Res
• رقم العدد: x
• رقم الإصدار السنوي: x
• الصفحات: x

مستخلص المنشور

Abstract Water pollution is gradually increasing in natural
waters through anthropogenic activities. This study aimed to
use fish scales as a bio-indicator of pollution, along with water
quality parameters, and the assessment and detection of selected
heavy metals in water samples collected from the River
Chenab, including the Chakbandi drain that gathers domestic
sewage waste and industrial effluents from Faisalabad and
deposits it into this freshwater body. All water quality parameters
(pH, total dissolved solids (TDS), total suspended solids
(TSS), salinity, conductivity, biochemical oxygen demand
(BOD), chemical oxygen demand (COD), phenols and sulphates)
and concentrations of selected heavy metals (Cd, Cu,
Mn, Pb and Cr) were found to be considerably higher than
permissible limits as defined by the WHO, and therefore capable
of causing ill health effects in aquatic organisms.
Specimens of fish scales from selected fish were described
qualitatively and observed quantitatively. In Catla catla,
Labeo rohita and Cirrhinus mrigala, the scales showed several
deformities in shape and different scale structures such as
circuli, radii and annuli. In each of the three types of fish,
considerable variation in the morphology of their scales was
observed in specimens collected from polluted sites.