Author
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Mitchell, Andrew |
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Submitted to: Aquaculture Magazine
Publication Type: Trade Journal Publication Acceptance Date: 11/15/1997 Publication Date: N/A Citation: N/A Interpretive Summary: Technical Abstract: This article discusses the major losses of golden shiners that have occurred in the baitfish industry since 1977. Primarily, healthy-looking shiners, three inches and larger, die from March to November. Seasonal trends, mortality patterns, disease signs, pathological analysis, temperature, water quality, algal blooms, bird predation and disease vectoring by birds, infectious agents and the effect of certain treatments were considered. The potential for several causes (more than one disease problem) was also considered. The consideration of a viral etiology was given special emphasis but was shown not to be well supported. Blue-green algae were found to be present about 75% of the time and therefore may have had a part in these fish kills. An environmental cause rather than infectious cause was suspected, although nutritional inadequacies and factors associated with size and age were not overlooked. A footnote indicates that something as basic as low dissolved oxygen may have been overlooked as part of the cause. |
