Length-weight relationship of sucker head, Garra Gotyla Gotyla (Gray, 1830) in different rivers of Nepal and the influence of monsoon
Journal Title: International Journal of Environmental Science and Technology - Year 2005, Vol 2, Issue 2
Abstract
Size structure data particularly that of length and weight is very important fisheries management tool, which is also applied to assess the health, habitat and integrity of the rivers. Nepal is tremendously rich in both fisheries and water resource and thus, this analysis is very important. However, this kind of analysis is not common in fisheries studies and hence the size structure information of all the fish in Nepal is wanting. This study simply tries to open the door for such studies with the study of the sucker head Garra gotyla gotyla, a very common fish in Nepal. The field observation was done in nine rivers of the country in all the seasons of the 2003 by using electrofishing gear. The length-weight relationship was found to vary both spatially and temporally among rivers and seasons respectively indicating different conditions in different rivers. The length weight relationship also showed some interesting facts about the seasonal cycle of the species indicating the period of growth and stress in different rivers. The monsoon event was found to be highly influential in this relationship.
Authors and Affiliations
B. R. Jha, H. Waidbacher, S. Sharma, M. Straif
Keywords
Related Articles
- EP ID EP144478
- DOI -
- Views 93
- Downloads 0
Comparison of extractability of Cd, Cu, Pb and Zn with sequential extraction in contaminated and non-contaminated soils
Various extraction procedures were employed for measuring extractable concentrations of potential toxic elements in soil. The extractability of Cd, Cu, Pb and Zn in four contaminated and four non-contaminated soils of Ja...
Transition stages from a traditional city to an industrial city (Social and cultural environment of Tehran)<br />
Some of Iran’s cities, especially Tehran that is the capital city of Iran, have faced sudden changes of industrialization due to political, economic, and ecological considerations. There is no doubt that it is not possib...
Effects of industrial air pollution on the respiratory health of children<br />
There is growing concern regarding to the possible effects of air pollution on respiratory health of children in Eleme industrial area of Port-Harcourt Nigeria. A total of 250 children were sampled from six primary schoo...
A geochemical and statistical approach for assessing heavy metal pollution in sediments from the southern Caspian coast
The nearshore marine environment of the Caspian sea is a major repository for toxic metals originating from various sources. Since the persistent toxic metals pose serious health risks this research concentrated on inves...
Development of a master plan for industrial solid waste management
Rapid industrial growth in the province of Khuzestan in the south west of Iran has resulted in disposal of about 1750 tons of solid waste per day. Most of these industrial solid wastes including hazardous wastes are disp...