Morphometric and Gravimetric Indices of Two Populations of Rice Frog (Fejervarya limnocharis) Naturally Exposed to Different Environmental Cadmium Levels

Authors

  • Mohd Sham Othman Universiti Kebangsaan Malaysia
  • Wichase Khonsue Chulalongkorn University, Bangkok
  • Jirarach Kitana Chulalongkorn University, Bangkok
  • Kumthorn Thirakhupt Chulalongkorn University, Bangkok
  • Mark Gregory Robson The State University of New Jersey
  • Noppadon Kitana Chulalongkorn University, Bangkok

Keywords:

Fejervarya limnocharis, morphometric indices, gravimetric indices, cadmium, Tak Province

Abstract

In this study, morphometric and gravimetric indices were used to determine the impact of cadmium exposure on a sentinel species. Scaling coefficient, condition factor (CF), hepatosomatic index (HSI), renosomatic index (RSI) and gonadosomatic index (GSI) were compared between rice frogs (Fejervarya limnocharis) exposed to different environmental cadmium levels. The result showed that frogs caught from the contaminated site had significantly higher CF (10.296), RSI (0.413) and female GSI (7.594) than frogs from the contaminated site (7.594, 0.380 and 1.594, respectively). For Scaling Coefficient and HSI, albeit being statistically insignificant, these indices showed a similar trend. On the other hand, the male GSI showed a reverse trend where frogs from contaminated site showed higher values than their counterpart from the reference site. However, the differences were not statistically significant. This research concluded that there is a relationship between cadmium contamination with morphometric and gravimetric indices. Therefore, it is suggested that the use of these data could give an idea on the effect of cadmium exposure on the rice frog. DOI : http://dx.doi.org./10.17576/JSKM-2016-1402-07

Author Biographies

Mohd Sham Othman, Universiti Kebangsaan Malaysia

Environmental Health & Industrial Safety Program,Faculty of Health Sciences

Wichase Khonsue, Chulalongkorn University, Bangkok

International Postgraduate Programs in Environmental Management, Graduate School

Jirarach Kitana, Chulalongkorn University, Bangkok

National Center of Excellence for Environmental and Hazardous Waste Management (NCE-EHWM)

Kumthorn Thirakhupt, Chulalongkorn University, Bangkok

Department of Biology, Faculty of Science

Mark Gregory Robson, The State University of New Jersey

School of Environmental and Biological Sciences,Rutgers, New Brunswick

Noppadon Kitana, Chulalongkorn University, Bangkok

Thai Fogarty International Training and Research in Environmental and Occupational Health Center

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Published

2016-06-30

Issue

Vol. 14 No. 2 (2016)

Section

Articles

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