Azinphosmethyl exposure to grass shrimp (Palaemonetes pugio) life stages with emphasis on larval acetylcholinesterase activity

For the organophosphorus pesticide, azinphosmethyl, 96-h acute toxicity bioassays were conducted in adult and two larval stages of grass shrimp, Palaemonetes pugio, and acetylcholinesterase (AChE) activity was determined in larvae following pulse-dose exposures. The 96-h LC sub(50) values for the di...

Full description

Saved in:
Bibliographic Details
Published in:Bulletin of environmental contamination and toxicology 1998-04, Vol.60 (4), p.645-650
Main Authors: Key, P.B, Fulton, M.H, Layman, S.L, Scott, G.I
Format: Article
Language:English
Subjects:
ACETILCOLINESTERASA
ACETYLCHOLINESTERASE
Acetylcholinesterase - drug effects
Acetylcholinesterase - metabolism
Animal, plant and microbial ecology
Animals
Applied ecology
AZINFOS-METIL
AZINPHOS-METHYL
Azinphosmethyl - adverse effects
Biological and medical sciences
Decapoda (Crustacea)
Ecotoxicology, biological effects of pollution
Effects of pollution and side effects of pesticides on protozoa and invertebrates
Fundamental and applied biological sciences. Psychology
Insecticides - adverse effects
Larva - drug effects
Larva - enzymology
Larva - growth & development
Lethal Dose 50
PALAEMONETES
Palaemonetes pugio
Toxicity Tests
Water Pollution, Chemical - adverse effects
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:For the organophosphorus pesticide, azinphosmethyl, 96-h acute toxicity bioassays were conducted in adult and two larval stages of grass shrimp, Palaemonetes pugio, and acetylcholinesterase (AChE) activity was determined in larvae following pulse-dose exposures. The 96-h LC sub(50) values for the different life stages ranged from 0.38 to 164 mu g/l for 18-d-old larvae and adults, respectively. The 18-d-old larvae were significantly more sensitive to azinphosmethyl than newly hatched larvae. At all azinphosmethyl concentrations used in the pulse-exposure test, whole-body AChE activity was reduced significantly from controls after 6 h of exposure. The AChE levels at day 15 suggested that recovery of AChE levels occurred between the four pulse doses.
ISSN:0007-4861
1432-0800
DOI:10.1007/s001289900675