Hypolimnetic oxygenation 6. Improvement in fisheries, hydropower, and drought management with costs of installation and operation in Camanche Reservoir, California, United States

IF 1.1 4区环境科学与生态学 Q4 LIMNOLOGY Lake and Reservoir Management Pub Date : 2022-05-24 DOI:10.1080/10402381.2022.2049404

A. Horne, W. K. Faisst

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Abstract

Abstract Horne AJ, Faisst WK. 2022. Hypolimnetic oxygenation 6. Improvement in fisheries, hydropower, and drought management with costs of installation and operation in Camanche Reservoir, California, United States. Lake Reserv Manage. 38:268–285. A hypolimnetic oxygenation system (HOS) was installed in Camanche Reservoir, California, in 1993 to eliminate hatchery fish kills caused by hydrogen sulfide in dam tailwaters. It operates from about June through October each year. Algae, nutrients, heavy metals, and turbidity also declined. Fall run Chinook salmon (Oncorhynchus tshawytscha) increased by 3550/yr or 265%. Threatened steelhead trout (O. mykiss), which spend more time in the river than Chinook, benefited more (625%). A 3 yr delay in elevated adult returns indicated that the HOS’s main effect was improved in-river water quality for juvenile fish, rather than better adult attraction flows. Using the California State economist’s value of $1172 for an adult Chinook to freshwater anglers, the increase due to HOS added $6.5 million/yr to California’s recreation. The in-reservoir coldwater fishery improved because dissolved oxygen in the hypolimnion increased from <1 mg/L to ∼5 mg/L. Oxygenation allowed summer operation of a 10.7 MW hydropower plant, making HOS carbon neutral. During droughts, improved water quality at lower reservoir levels reduced dependence on alternative supplies and supported full hatchery operation and in-river spawning. Oxygen addition ($0.64/kg) was much cheaper than nitrate addition ($104/kg). Averaged over 20 yr, HOS reduced phosphorus ($19.3/kg vs. alum addition at $16/kg) and ammonia/nitrate ($2/kg). Iron ($0.0005/kg) and manganese were reduced at lower cost than for conventional methods ($9/kg). Copper ($4441/kg) and zinc ($2169/kg) fell below chronic toxicity levels. Capital cost for HOS was $1.87 million in 1993 or $30,390/km2 ($1248/acre). Operation and management averaged $191,288/yr (1993–2000).

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低氧合。改善渔业、水电和干旱管理，包括美国加利福尼亚州卡曼奇水库的安装和运行费用

摘要Horne AJ，Faisst WK。2022.低氧氧合6。美国加利福尼亚州卡曼奇水库的安装和运营成本改善了渔业、水电和干旱管理。湖泊保护区管理。38:268–285。1993年，在加利福尼亚州卡曼奇水库安装了一个低碳氧合系统（HOS），以消除大坝尾水中硫化氢导致的孵化鱼类死亡。它的运营时间约为每年6月至10月。藻类、营养物质、重金属和浊度也有所下降。秋季运行的奇努克三文鱼（Oncorhynchus tshawytscha）每年增加3550条，即265%。受威胁的钢头鳟鱼（O.mykiss）在河里呆的时间比奇努克鱼长，受益更多（625%）。A 3 成年回报率上升的年延迟表明，居屋的主要影响是改善了幼鱼的河流水质，而不是更好的成年吸引力流量。根据加州州立大学经济学家对一名成年奇努克人和淡水垂钓者1172美元的估价，由于居屋计划的增加，加州的娱乐活动每年增加650万美元。库内冷水渔业的改善是因为底层水体中的溶解氧从<1增加 mg/L至~5 mg/L。氧合允许10.7 MW水电站，使HOS碳中和的。在干旱期间，较低水库水位的水质改善减少了对替代供水的依赖，并支持了全面的孵化作业和河内产卵。添加氧气（0.64美元/公斤）比添加硝酸盐（104美元/公斤。平均超过20 年，HOS减少了磷（19.3美元/公斤，而明矾添加量为16美元/公斤）和氨/硝酸盐（2美元/千克）。铁（0.0005美元/公斤）和锰的还原成本低于传统方法（9美元/千克）。铜（每公斤4441美元）和锌（每公斤2169美元）低于慢性毒性水平。1993年，居屋的资本成本为187万美元，即每平方公里30390美元（每英亩1248美元）。运营和管理平均每年191288美元（1993-2000年）。

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Lake and Reservoir Management 环境科学-海洋与淡水生物学

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6.70%

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期刊介绍： Lake and Reservoir Management (LRM) publishes original, previously unpublished studies relevant to lake and reservoir management. Papers address the management of lakes and reservoirs, their watersheds and tributaries, along with the limnology and ecology needed for sound management of these systems. Case studies that advance the science of lake management or confirm important management concepts are appropriate as long as there is clearly described management significance. Papers on economic, social, regulatory and policy aspects of lake management are also welcome with appropriate supporting data and management implications. Literature syntheses and papers developing a conceptual foundation of lake and watershed ecology will be considered for publication, but there needs to be clear emphasis on management implications. Modeling papers will be considered where the model is properly verified but it is also highly preferable that management based on the model has been taken and results have been documented. Application of known models to yet another system without a clear advance in resultant management are unlikely to be accepted. Shorter notes that convey important early results of long-term studies or provide data relating to causative agents or management approaches that warrant further study are acceptable even if the story is not yet complete. All submissions are subject to peer review to assure relevance and reliability for management application.