Toxicity of non-selective herbicide-Paraeforce® to Periwinkle snail Tympanotonus fuscatus var radula
Journal Title: Archives of Agriculture and Environmental Science - Year 2017, Vol 2, Issue 3
Abstract
Periwinkle snails Tympanotonus fuscatus var radula, an important shellfish in the Niger Delta ecological zone are on the decline and they have not been considered in environmental risk assessment due to the lack of standardized protocols. The gastropod is an abundant species and widely distributed in the aquatic Niger Delta environments. In this study T. fuscatus var radula was exposed to ParaeForce(e), a solution of paraquat dichloride, a non-selective commonly used organochlorine herbicide due to it sensitivity to chemical compounds, as pollution indicators. The effect of lethal and sub lethal exposure of ParaeForce® was assessed using the Organization for Economic Development and Cooperation (OECD) #218 protocol to determine the toxicity and safe limit concentrations. The lethal exposure gave an average LC50 of 0.665 mg/kg with a safe limit of 0.0665 mg/kg. The sub lethal test showed that the exposed organisms reduced significantly in body mass at levels of P < 0.05 when compared to the control experiment. Mean percent growth rate relative to the control reduced from 100% to 47% while the highest growth inhibition of 53% was observed in the highest concentration. Thus, the release of the test chemical and other similar herbicides into the environment may cause alteration and loss of body mass in periwinkle molluscs due to their toxic potentials. It is important to exercise caution in the application of this herbicide especially in the aquatic environment for weed control.
Authors and Affiliations
Emmanuel Temiotan Ogbomida
Keywords
Related Articles
- EP ID EP473516
- DOI -
- Views 135
- Downloads 0
Agro-ecological characteristics and ethanobotanical significance of safflower (Carthamus tinctorius L.): An overview
Safflower (Carthamus tinctorius L.) is one of the oldest crops. It is native to the old world. It occurs naturally in Mediterranean Region, North Eastern Africa and South Western Asia to India. It is cultivated in India...
Climatic fluctuations in Uttarakhand Himalayan region and resulting impacts: A review
The Himalayan Mountains are the stock of precious biodiversity and water, and providers of ecosystem goods and services on which local communities depend. These “clean” regions are becoming victims of transport of atmosp...
Heavy metals and microbial contamination of certain leafy vegetables grown in abattoir effluent disposal province of Saharanpur (Uttar Pradesh), India
The present investigation was carried out to study the heavy metals and microbial contamination of four selected leafy vegetables viz., cabbage, lettuce, coriander and spinach grown in abattoir effluent irrigated soil. T...
Monitoring of ground water quality in the province of district Dehradun, (Uttarakhand), India
The present study focused on the groundwater in Dehradun city to assess the quality of groundwater for determining its suitability for drinking and agricultural purposes. Groundwater samples were collected monthly from f...
Variations of growth parameters in transplanted Aman rice (cv. BRRI dhan39) in response to plant spacing and fertilizer management
The experiments were carried out at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh, Bangladesh during June to December 2015 to investigate the effect of spacing and fertilizer management on...