Sublethal copper stress and susceptibility of channel catfish to experimental infections with Ichthyophthirius multifiliis

Journal Article · Tue Jun 01 00:00:00 EDT 1982 · Bull. Environ. Contam. Toxicol.; (United States)

DOI:https://doi.org/10.1007/BF01605635· OSTI ID:5518757

Ewing, M S; Ewing, S A; Zimmer, M A

The study describes a technique for evaluating the change in susceptibility of channel catfish (Ictalurus punctatus) to infection by the protozoan parasite Ichthyophthirius multifiliis following exposure to sublethal concentrations of dissolved copper. This ubiquitous parasite infects a wide variety of freshwater fishes and causes severe disease problems in catfish. Exposure to sublethal concentrations of contaminants may amplify stress significantly for fish exposed to such disease agents. Therefore, techniques are needed to judge the effect of contaminant stress upon the course of disease, rather than simply death from disease, in fishes. Results show that pathologic changes attendent upon exposure to the parasite and those upon exposure to copper are complementary in effect. (JMT)

• Research Organization: Oklahoma State Univ., Stillwater
• OSTI ID: 5518757
• Journal Information: Bull. Environ. Contam. Toxicol.; (United States), Journal Name: Bull. Environ. Contam. Toxicol.; (United States) Vol. 28:6; ISSN BECTA
• Country of Publication: United States
• Language: English

Related Subjects

560305* -- Chemicals Metabolism & Toxicology-- Vertebrates-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ANIMALS
AQUATIC ORGANISMS
AUGMENTATION
BIOLOGICAL EFFECTS
COPPER
DISEASES
ELEMENTS
FISHES
GILLS
INFECTIOUS DISEASES
INFECTIVITY
METALS
PARASITES
PARASITIC DISEASES
PATHOLOGICAL CHANGES
RESPIRATORY SYSTEM
SENSITIVITY
SYNERGISM
TOLERANCE
TRANSITION ELEMENTS
VERTEBRATES