Journal ArticleDOI
Bioaccumulation of Methyl Parathion and Its Toxicology in Several Species of the Freshwater Community in Ignacio Ramirez Dam in Mexico
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TLDR
The increase in enzymatic activity provides a detoxification mechanism from chronic sublethal exposure, when hepatic glutation depletion occurs, and may be an indicator of liver damage.About:
This article is published in Ecotoxicology and Environmental Safety.The article was published on 1997-10-01. It has received 45 citations till now. The article focuses on the topics: Parathion methyl & Bioaccumulation.read more
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Journal ArticleDOI
Molecular phylogeny of the livebearing Goodeidae (Cyprinodontiformes).
Shane A. Webb,Jefferson A. Graves,Constantino Macías-Garcia,Anne E. Magurran,Diarmaid Ó Foighil,Michael G. Ritchie +5 more
TL;DR: The sequenced part of the mitochondrial cytochrome c oxidase subunit I (COI) gene and control region of representatives of 36 species (all genera) of goodeid fishes in order to establish phylogenetic relationships among the taxa support the monophyly of the Goodeidae, the sister-group relationship of the Empetrichthyinae and Goodeinae, and the relationship of Profundulus to the GoodEidae.
Journal ArticleDOI
Comparative acute toxicity of organic pollutants and reference values for crustaceans. I. Branchiopoda, Copepoda and Ostracoda.
TL;DR: The acute toxicity of 468 organic pollutants to planktonic crustaceans from pre-existing data was compared by means of statistical analysis and relative tolerance indices (Trel), and there are marked differences in sensitivity among taxa and particular groups of chemicals.
Journal ArticleDOI
Responses of metabolic and antioxidant enzymatic activities in gill, liver and plasma of Catla catla during methyl parathion exposure
TL;DR: The results of the present investigation suggest that gill is the most sensitive organ to MP toxicity and the alterations of the enzymatic parameters can be effectively used as potential biomarkers for monitoring of the organophosphorus pesticides in aquatic environment.
Journal ArticleDOI
Effect of Insecticides on Plankton and Fish of Ignacio Ramirez Reservoir (Mexico): A Biochemical and Biomagnification Study
TL;DR: Studies on the limnology, plankton, and biomagnification of pesticides at Ignacio Ramírez (IR) reservoir (Mexico) were undertaken and GGTP activity and lipid peroxidation increased and AchE activity in fish decreased in response to the environmental stress caused by the elevated biomagnifying of pesticides.
Journal ArticleDOI
Doñana National Park survey using crayfish (Procambarus clarkii) as bioindicator: Esterase inhibition and pollutant levels
Amalia Vioque-Fernández,E. Alves de Almeida,J. Ballesteros,Tamara García-Barrera,José Luis Gómez-Ariza,Juan López-Barea +5 more
TL;DR: It is suggested that the rice growing areas near Guadiamar stream are most polluted, followed by strawberry and citrics growing zones near Partido and Rocina streams, and no correlation exist between the pesticide concentration at different sites and the extent of Esterase inhibition, indicating that other factors could affect esterase response of animals from polluted sites.
References
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Journal ArticleDOI
A rapid and sensitive method for the quantitation of microgram quantities of protein utilizing the principle of protein-dye binding
TL;DR: This assay is very reproducible and rapid with the dye binding process virtually complete in approximately 2 min with good color stability for 1 hr with little or no interference from cations such as sodium or potassium nor from carbohydrates such as sucrose.
Book
Ecology and classification of North American freshwater invertebrates
James H. Thorp,Alan P. Covich +1 more
TL;DR: Covich and Covich as discussed by the authors introduced freshwater invertebrates and classified them into five classes: freshwater cnidaria, leech, polychaetes, and acanthobdellids.
Journal ArticleDOI
The reaction of acetylcholine and other carboxylic acid derivatives with hydroxylamine, and its analytical application.
TL;DR: The present method, which is designed for use with short chain 0-acyl derivatives, is based on the finding that hydroxylamine at an alkaline pH in water rapidly converts acetylcholine stoichiometrically to hydroxamic acid throughout a wide range of ester concentration.
Book ChapterDOI
1 – The Effect of Environmental Factors on the Physiology of Fish
TL;DR: The chapter focuses on the action of the environment on metabolism and the effects of this action on the activity of the organism.
Journal ArticleDOI
The functions and regulation of glutathione s-transferases in plants.
TL;DR: This review presents the current knowledge about the functions of GSTs in regard to both herbicides and endogenous substrates and the catalytic mechanism of GST activity as well as the fate of glutathione S-conjugates.