Sensitivity of branchial mucous to crude oil toxicity in a freshwater fish, Colisa fasciatus

Journal Article · Tue Nov 01 00:00:00 EST 1988 · Bull. Environ. Contam. Toxicol.; (United States)

DOI:https://doi.org/10.1007/BF02021029· OSTI ID:6212125

Prasad, M S

In the maintenance of respiratory activity of the gills in fishes, mucus secretion is known to have an important function. Crude oils and their fractions enter the fish tissue by positive transfer via the gills thus the mucus cells of gill epithelia act as an obvious site of pathogenic interactions between the fish and the environment. Mucous cell hyperplasia is a general phenomenon associated with crude oil toxicity. Even though a large quantity of crude oil pollutes the freshwater environment annually, literatures on the pathogenic effect of oil pollutants on the branchial mucous cells of fishes are limited to the marine and estuarine species. This investigation has been undertaken to provide a better understanding of the pathogenic effects of crude oil on the branchial mucous of a freshwater fish, Colisa fasciatus. The toxicity assessment is based on the histochemical observations of mucous cells present in the epithelia of gill rakers and filaments.

• Research Organization: Bihar Univ. (India)
• OSTI ID: 6212125
• Journal Information: Bull. Environ. Contam. Toxicol.; (United States), Vol. 41:5
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
MUCOUS MEMBRANES
CYTOCHEMISTRY
PETROLEUM
TOXICITY
DOSE-RESPONSE RELATIONSHIPS
FISHES
GILLS
HISTOLOGY
OIL SPILLS
SENSITIVITY
ANIMALS
AQUATIC ORGANISMS
BIOCHEMISTRY
CHEMISTRY
ENERGY SOURCES
FOSSIL FUELS
FUELS
MEMBRANES
RESPIRATORY SYSTEM
VERTEBRATES
020900* - Petroleum- Environmental Aspects