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Utility of Splenic Macrophage Aggregates as an Indicator of Fish Exposure to Degraded Environments
Densities of MAs that exceeded 40/mm2 correlated with exposure to either hypoxic conditions or sediment contamination, and Fisher's exact test showed that the observed frequencies of joint occurrence between high numbers of M as and both high sediment contaminants and low dissolved oxygen were significantly greater than the expected background frequencies.
Estimating 3-dimensional colony surface area of field corals
Immunohistochemical detection of P-glycoprotein in teleost tissues using mammalian polyclonal and monoclonal antibodies.
Tissue specificities of one polyclonal (pAb) and three monoclonal (mAbs) antibodies to mammalian P-glycoprotein were identified in paraffin-embedded, parasagittal whole-body sections of the guppy Poecilia reticulata, indicating that one or more highly conserved members of the P- Glycoprotein transporter family exist in a teleost species and can be detected using commercially available mammalian antibodies.
Diagnostic Criteria for Proliferative Thyroid Lesions in Bony Fishes
- J. Fournie, M. Wolfe, J. Wolf, L. Courtney, Rodney D. Johnson, W. Hawkins
- Biology, MedicineToxicologic pathology
- 1 August 2005
Specific diagnostic criteria for distinguishing hyperplastic from neoplastic lesions are proposed and should assist fish pathologists in describing and categorizing naturally occurring proliferative lesions from wild fishes, lesions that develop in laboratory fishes due to suboptimal culture practices or water quality, those in fishes used in toxicological assays, and captive aquarium fishes.
Preliminary Observations on Responses of Embryonic and Larval Pacific Herring, Clupea pallasi, to Neutral Fraction Biodegradation Products of Weathered Alaska North Slope Oil
- D. Middaugh, M. Shelton, Jr. C. L. McKenney, G. Cherr, P. Chapman, L. Courtney
- Environmental Science, BiologyArchives of environmental contamination and…
- 1 February 1998
Toxicity/teratogenicity tests were conducted with WSF recovered from the biodegradation system using embryonic and larval Pacific herring, Clupea pallasi, and high mortality was noted in larvae exposed to the 10% WSF concentration beginning at 4 and 48 h postfertilization.
Ovacystis-like condition in the eastern oyster Crassostrea virginica from the northeastern Gulf of Mexico.
Histological examination of the eastern oyster Crassostrea virginica from a study in Pensacola Bay, Florida, revealed 2 cases of abnormally large, basophilic ova that resembled cells characteristic…
Cytological changes during progression of neoplasia in selected fish species
Embryonic Coat of the Grass Shrimp Palaemonetes pugio.
The palaemonid EC is a dynamic structure throughout embryonic development, and permeability of the EC during the 12-d incubation period is found to decrease between 0 and 5 d after oviposition, and then increase until hatching.
INTERACTION OF CHEMICAL POLLUTANTS AND VIRUS IN A CRUSTACEAN: A NOVEL BIOASSAY SYSTEM *
The shrimp-virus system shows, promise for future bioassays of influence of low concentrations of pollutants on natural pathogenhost interactions, and an interaction among chemical stressor, host, and virus.
Effects of Fractions from Biodegraded Alaska North Slope Crude Oil on Embryonic Inland Silversides, Menidia beryllina
- D. Middaugh, P. Chapman, M. Shelton, Jr. C. L. McKenney, L. Courtney
- BiologyArchives of environmental contamination and…
- 1 February 2002
Embryo toxicity and teratogenicity tests revealed that exposure of embryos to the WSFs from the EI2V incubation resulted in the most severe responses in craniofacial, cardiovascular, skeletal, and skeletal organ systems.