Estimation of field Biotic Index and Water Quality of streams in North west of Shiraz region,Iran using Aquatic Insect fauna
Journal Title: International Research Journal of Applied and Basic Sciences - Year 2014, Vol 8, Issue 5
Abstract
In this paper, biotic index of streams in North West of Shiraz region using aquatic insect fauna were studied. A total of 11 families were collected and identified in four habitat codes of streams and biological parameters were calculated for the streams. Water pollution was determined using biotic index formulation of aquatic insects. Main factors in this estimation are number of specimens in taxonomic groups, the pollution tolerance and the total number of aquatic insects.Aquatic insects are given a numerical pollution tolerance score ranging from 0 to 10. Zero taxa are extremely intolerant of low dissolved oxygen; taxa with score of 2 through 9 are tolerant to varying degrees; taxa which can survive great amounts of pollution are scored 10. In this survey, biotic index of North West of Shiraz region streams were 4.5. As a result water quality in studied area was very good (possible slight organic pollution).
Authors and Affiliations
H. Bashti| Entomology Department, Islamic Azad University, Science and Research Branch, Fars, Iran, H. Ostovan| Entomology Department, Islamic Azad University, Science and Research Branch, Fars, Iran
Keywords
Related Articles
- EP ID EP6598
- DOI -
- Views 320
- Downloads 8
Improving postharvest vase-life and quality of cut rose flowers using natural preservatives
The effects of pulse Putrescine, spermine and spermidine, on cut rose was studied. Putrescine, spermine and spermidine in the two levels 100 and 200 mg 1- were tested. This study was conducted in a factorial experiment w...
Parametric Study of a Single Flexible Link Based on Timoshenko and Euler-Bernoulli Beam Theories
In this research the sensitivity analysis (SA) of the geometric parameters such as: length, thickness and width of a single link flexible manipulator on maximum deflection (MD) of the end effector and vibration energy (V...
Seismic study of land subsidence and Vulnerability of Rural Buildings by using geophysics methods, near Shiraz city
In recent years, land subsidence due to different reason such as excessive withdrawal of groundwater resources has lead to significant damages to farmlands, residential buildings, roads and transmission lines. Inattentio...
The Interaction of Emotional Intelligence and Self – Efficacy with EFL Learners` Age and Gender
The present study aimed to investigate the relationship between EFL students` emotional intelligence (EI) and their sense of self efficacy beliefs. The researcher of the present study set out to investigate this associat...
Influence of homogeneous magnetic field on the content of ten trace elements in stipe and cap oyster mushroom (Pleurotus Florida)
Although a small amount of trace elements is essential for vital processes of edible mushrooms, in excess they could pose a threat to the human society’s health. This survey was conducted in a completely randomized desig...