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Ecology Publications & Forms |
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Ecology Publications & Forms |
| Title | Quality of Salmonid Hatchery Effluents during a Summer Low-Flow Season. Article in Transactions of the American Fisheries Society 120:43-51, 1991. |
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Quality of Salmonid Hatchery Effluents during a Summer Low-Flow Season. Article in Transactions of the American Fisheries Society 120:43-51, 1991. (Number of pages: 1) (Publication Size: 6KB)
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| Author(s) | Kendra, W. | ||||
| Description | Ecology assessed the quality of salmonid hatchery effluents and receiving water streams in Washington State during the 1988 summer low-flow period. Relative to hatchery influent waters, effluents showed significant increases in temperature, pH, suspended solids, ammonia, organic nitrogen, total phosphorus, and chemical oxygen demand. Wastewater discharges sometimes violated state water quality standards; effects were exacerbated by low dilution. Hatchery nutrient loads equaled or exceeded receiving water loads; effects of enrichment were most evident in oligotrophic waters. Benthic invertebrates sensitive to organic waste were often replaced by pollution-tolerant forms in the vicinity of hatchery outfalls. Survey findings necessitated revision of existing hatchery wastewater discharge permits in Washington. | ||||
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| Contact | EAP Publications Coordinator at 564-669-3028 or EAPpubs@ecy.wa.gov | ||||
| Keywords | stream, receiving water, chemical oxygen demand, invertebrates, nitrogen, flow, temperature, fish, water quality, quality, outfall, salmon, pH, phosphorus, effluent, ammonia | ||||
| WATERSHED | Water Resource Inventory Areas (WRIA 07,WRIA 08,WRIA 10,WRIA 13,WRIA 15,WRIA 16,WRIA 22,WRIA 23,WRIA 24,WRIA 26,WRIA 37,WRIA 41,WRIA 52,WRIA 55) |
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| RELATED PUBLICATIONS | Title:
Quality and Fate of Fish Hatchery Effluents During the Summer Low Flow Season |
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