Brain monoamine concentrations as predictors of growth inhibition in channel catfish exposed to ammonia

Heidi L. Atwood; Joseph R. Tomasso; Patrick J. Ronan; Bruce A. Barton; Kenneth J. Renner

doi:10.1577/1548-8667(2000)012<0069:BMCAPO>2.0.CO;2

Brain monoamine concentrations as predictors of growth inhibition in channel catfish exposed to ammonia

Heidi L. Atwood, Joseph R. Tomasso, Patrick J. Ronan, Bruce A. Barton, Kenneth J. Renner

Research output: Contribution to journal › Article › peer-review

27 Scopus citations

Abstract

Fingerlings of channel catfish Ictalurus punctatus exhibited a significant exposure-dependent decrease in growth (measured by weight gain and increase in total length) and condition factor after 9 weeks of exposure to environmental ammonia. Concentrations of 5-hydroxytryptamine (5- HT) and dopamine in the brain decreased significantly whereas the ratio of 5-hydroxyindoleacetic acid (5-HIAA) to 5-HT increased significantly in exposure-dependent manners. The brain dopamine concentrations and the 5-HIAA;5-HT ratio collectively explained 88% of the variation in growth due to ammonia exposure. This study demonstrates the potential to predict ammonia-induced inhibition of growth in channel catfish with physiological changes.

Original language	English (US)
Pages (from-to)	69-73
Number of pages	5
Journal	Journal of Aquatic Animal Health
Volume	12
Issue number	1
DOIs	https://doi.org/10.1577/1548-8667(2000)012<0069:BMCAPO>2.0.CO;2
State	Published - 2000
Externally published	Yes

ASJC Scopus subject areas

Aquatic Science

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10.1577/1548-8667(2000)012<0069:BMCAPO>2.0.CO;2

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title = "Brain monoamine concentrations as predictors of growth inhibition in channel catfish exposed to ammonia",

abstract = "Fingerlings of channel catfish Ictalurus punctatus exhibited a significant exposure-dependent decrease in growth (measured by weight gain and increase in total length) and condition factor after 9 weeks of exposure to environmental ammonia. Concentrations of 5-hydroxytryptamine (5- HT) and dopamine in the brain decreased significantly whereas the ratio of 5-hydroxyindoleacetic acid (5-HIAA) to 5-HT increased significantly in exposure-dependent manners. The brain dopamine concentrations and the 5-HIAA;5-HT ratio collectively explained 88% of the variation in growth due to ammonia exposure. This study demonstrates the potential to predict ammonia-induced inhibition of growth in channel catfish with physiological changes.",

author = "Atwood, {Heidi L.} and Tomasso, {Joseph R.} and Ronan, {Patrick J.} and Barton, {Bruce A.} and Renner, {Kenneth J.}",

note = "Funding Information: This study was funded by the U.S. Department of Agriculture, National Research Initiative, Competitive Grants Program (grant 97-35208-4684); C. Kempton and W. Taylor assisted with the laboratory work; and J. Isely provided direction during statistical analyses.",

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doi = "10.1577/1548-8667(2000)012<0069:BMCAPO>2.0.CO;2",

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AU - Atwood, Heidi L.

AU - Tomasso, Joseph R.

AU - Ronan, Patrick J.

AU - Barton, Bruce A.

AU - Renner, Kenneth J.

N1 - Funding Information: This study was funded by the U.S. Department of Agriculture, National Research Initiative, Competitive Grants Program (grant 97-35208-4684); C. Kempton and W. Taylor assisted with the laboratory work; and J. Isely provided direction during statistical analyses.

PY - 2000

Y1 - 2000

N2 - Fingerlings of channel catfish Ictalurus punctatus exhibited a significant exposure-dependent decrease in growth (measured by weight gain and increase in total length) and condition factor after 9 weeks of exposure to environmental ammonia. Concentrations of 5-hydroxytryptamine (5- HT) and dopamine in the brain decreased significantly whereas the ratio of 5-hydroxyindoleacetic acid (5-HIAA) to 5-HT increased significantly in exposure-dependent manners. The brain dopamine concentrations and the 5-HIAA;5-HT ratio collectively explained 88% of the variation in growth due to ammonia exposure. This study demonstrates the potential to predict ammonia-induced inhibition of growth in channel catfish with physiological changes.

AB - Fingerlings of channel catfish Ictalurus punctatus exhibited a significant exposure-dependent decrease in growth (measured by weight gain and increase in total length) and condition factor after 9 weeks of exposure to environmental ammonia. Concentrations of 5-hydroxytryptamine (5- HT) and dopamine in the brain decreased significantly whereas the ratio of 5-hydroxyindoleacetic acid (5-HIAA) to 5-HT increased significantly in exposure-dependent manners. The brain dopamine concentrations and the 5-HIAA;5-HT ratio collectively explained 88% of the variation in growth due to ammonia exposure. This study demonstrates the potential to predict ammonia-induced inhibition of growth in channel catfish with physiological changes.

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Brain monoamine concentrations as predictors of growth inhibition in channel catfish exposed to ammonia

Abstract

ASJC Scopus subject areas

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