Sublethal effects of chronic exposure to chlorpyrifos or imidacloprid insecticides or their binary mixtures on Culex pipiens mosquitoes

2019 ◽  
Vol 44 (2) ◽  
pp. 123-132 ◽  
Author(s):  
Yahya Al Naggar ◽  
John P. Giesy ◽  
Samar El Kholy
2014 ◽  
Vol 48 (7) ◽  
pp. 4096-4102 ◽  
Author(s):  
Gaël Charpentier ◽  
Fanny Louat ◽  
Jean-Marc Bonmatin ◽  
Patrice A. Marchand ◽  
Fanny Vanier ◽  
...  

2018 ◽  
Vol 27 (16) ◽  
pp. 19004-19015 ◽  
Author(s):  
Yahya AL Naggar ◽  
Khaled Dabour ◽  
Saad Masry ◽  
Ahmed Sadek ◽  
Elsaied Naiem ◽  
...  

2002 ◽  
Vol 9 (3) ◽  
pp. 45-49 ◽  
Author(s):  
MO Jian-chu ◽  
YANG Tian-ci ◽  
CHENG Jia-an ◽  
SONG Xiao-gang

1994 ◽  
Vol 51 (9) ◽  
pp. 1967-1974 ◽  
Author(s):  
J. A. Johansen ◽  
C. J. Kennedy ◽  
R. M. Sweeting ◽  
A. P. Farrell ◽  
B. A. McKeown

Following either a 24-h (acute) or 25-d (chronic) exposure to tetrachloroguaiacol (TeCG), a component of bleached kraft mill effluent (BKME), juvenile rainbow trout, Oncorhynchus mykiss, were examined for effects on several biochemical parameters, swimming performance, and disease resistance. Acute exposure resulted in increased levels of plasma cortisol and lactate and reductions in liver glycogen and protein, spleen somatic index, leucocrit, hemoglobin, swimming performance, and disease resistance. Chronic exposure resulted in most parameters remaining at control levels with the exception of leucocrit which was elevated, plasma cortisol which decreased, and disease resistance which was impaired. These findings correlate well with a previously proposed classic stress response for mammals and are generally consistent with studies in which fish were exposed to whole BKME. The 96-h LC50 for juvenile rainbow trout exposed to TeCG was estimated at 0.37 mg∙L−1.


1977 ◽  
Vol 1977 (1) ◽  
pp. 563-568 ◽  
Author(s):  
Dale Straughan

ABSTRACT Comparative field studies were conducted in an area of natural chronic exposure to petroleum (Coal Oil Point) and at control sites between 1972 and 1974. Studies of the larger (mesh 2 mm) benthic infaunal invertebrates in shallow water (20-35 m) revealed organisms living in sediments with total CCl4 extractables higher than 10,000 mg/l at Coal Oil Point. These sediments contained petroleum hydrocarbons. The total CCl4 extractables in sediments from control sites which did not contain petroleum hydrocarbons were generally less than 100 mg/l. Petroleum hydrocarbons were recorded in tissues of abalone, mussels, and stalked barnacles from Coal Oil Point, although it is notable that all detected petroleum hydrocarbons were in the viscera and not in the foot of abalone. Data obtained in these studies did not reveal a significant change in reproduction, growth, or distribution that could be related to presence of petroleum in the tissues. However, there was a decrease in reproduction in stalked barnacles due to a “black body” effect of surrounding tar. There was no evidence of malformations in organisms living in the area of natural chronic exposure to petroleum. Petroleum hydrocarbons levels were higher in sediment and mussel tissues from Coal Oil Point than from the area around two producing oil rigs in the Santa Barbara Channel.


Sign in / Sign up

Export Citation Format

Share Document