Pub Date : 2022-06-24DOI: 10.1080/10402381.2022.2082345
Andy Canion, V. Hoge, J. Hendrickson, T. Jobes, D. Dobberfuhl
Abstract Canion A, Hoge V, Hendrickson J, Jobes T, Dobberfuhl D. 2022. Trends in phosphorus fluxes are driven by intensification of biosolids applications in the Upper St. Johns River Basin (Florida, United States). Lake Reserv Manage. 38:215–227. Biosolids are beneficially used in agricultural production, but the potential for nutrient enrichment, primarily phosphorus (P), in runoff water remains a concern. This study provides strong correlative evidence that intensified Class B biosolids applications led to increases in total P (TP) and total nitrogen (TN) fluxes in the Upper St. Johns River Basin (USJRB). In 2013, new state regulations resulted in the elimination of Class B biosolids applications in 3 watersheds encompassing most of southern Florida. Most of the applications from these watersheds were shifted into the USJRB, which received 78% of statewide Class B biosolids applications by 2019. Weighted regressions on time, discharge, and season (WRTDS) were used to evaluate the relationship between long-term (1995–2020) trends in tributary TP and TN concentrations and fluxes and the timing and magnitude of biosolids applications in 8 USJRB watersheds. No significant land use change occurred that could account for water quality trends. Flow-normalized concentrations and fluxes were generally stable from 1995 to 2012, but after intensification of applications in 2013, significant increases occurred in 6 and 4 watersheds for TP and TN, respectively. P fluxes increased by 0.9–16.4 metric tons (MT; 40–200%) and N fluxes increased by 1.6–19.7 MT (5–20%). The magnitude of P and N flux increases were between 0.5% and 2.0% of land-applied biosolids P and N, which suggests that small losses of P and N from the landscape were required to produce the observed trends.
{"title":"Trends in phosphorus fluxes are driven by intensification of biosolids applications in the Upper St. Johns River Basin (Florida, United States)","authors":"Andy Canion, V. Hoge, J. Hendrickson, T. Jobes, D. Dobberfuhl","doi":"10.1080/10402381.2022.2082345","DOIUrl":"https://doi.org/10.1080/10402381.2022.2082345","url":null,"abstract":"Abstract Canion A, Hoge V, Hendrickson J, Jobes T, Dobberfuhl D. 2022. Trends in phosphorus fluxes are driven by intensification of biosolids applications in the Upper St. Johns River Basin (Florida, United States). Lake Reserv Manage. 38:215–227. Biosolids are beneficially used in agricultural production, but the potential for nutrient enrichment, primarily phosphorus (P), in runoff water remains a concern. This study provides strong correlative evidence that intensified Class B biosolids applications led to increases in total P (TP) and total nitrogen (TN) fluxes in the Upper St. Johns River Basin (USJRB). In 2013, new state regulations resulted in the elimination of Class B biosolids applications in 3 watersheds encompassing most of southern Florida. Most of the applications from these watersheds were shifted into the USJRB, which received 78% of statewide Class B biosolids applications by 2019. Weighted regressions on time, discharge, and season (WRTDS) were used to evaluate the relationship between long-term (1995–2020) trends in tributary TP and TN concentrations and fluxes and the timing and magnitude of biosolids applications in 8 USJRB watersheds. No significant land use change occurred that could account for water quality trends. Flow-normalized concentrations and fluxes were generally stable from 1995 to 2012, but after intensification of applications in 2013, significant increases occurred in 6 and 4 watersheds for TP and TN, respectively. P fluxes increased by 0.9–16.4 metric tons (MT; 40–200%) and N fluxes increased by 1.6–19.7 MT (5–20%). The magnitude of P and N flux increases were between 0.5% and 2.0% of land-applied biosolids P and N, which suggests that small losses of P and N from the landscape were required to produce the observed trends.","PeriodicalId":18017,"journal":{"name":"Lake and Reservoir Management","volume":"38 1","pages":"215 - 227"},"PeriodicalIF":1.5,"publicationDate":"2022-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44552311","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-06-23DOI: 10.1080/10402381.2022.2084799
M. Beal, B. O'Reilly, Caitlin Soley, Kaitlynn R. Hietpas, P. Block
Abstract Beal MRW, O’Reilly BE, Soley CK, Hietpas KR, Block PJ. 2022. Variability of summer cyanobacteria abundance: can season-ahead forecasts improve beach management? Lake Reserv Manage. 39:37–52. As anthropogenic eutrophication and the associated increase of cyanobacteria continue to plague inland waterbodies, local officials are seeking novel methods to proactively manage water resources. Cyanobacteria are of particular concern to health officials due to their ability to produce dangerous hepatotoxins and neurotoxins, which can threaten waterbodies for recreational and drinking-water purposes. Presently, however, there is no cyanobacteria outlook that can provide advance warning of a potential threat at the seasonal time scale. In this study, a statistical model is developed utilizing local and global scale season-ahead hydroclimatic predictors to evaluate the potential for informative cyanobacteria biomass and associated beach closure forecasts across the June–August season for a eutrophic lake in Wisconsin (United States). This model is developed as part of a subseasonal to seasonal cyanobacteria forecasting system to optimize lake management across the peak cyanobacteria season. Model skill is significant in comparison to June–August cyanobacteria observations (Pearson correlation coefficient = 0.62, Heidke skill score = 0.38). The modeling framework proposed here demonstrates encouraging prediction skill and offers the possibility of advanced beach management applications.
{"title":"Variability of summer cyanobacteria abundance: can season-ahead forecasts improve beach management?","authors":"M. Beal, B. O'Reilly, Caitlin Soley, Kaitlynn R. Hietpas, P. Block","doi":"10.1080/10402381.2022.2084799","DOIUrl":"https://doi.org/10.1080/10402381.2022.2084799","url":null,"abstract":"Abstract Beal MRW, O’Reilly BE, Soley CK, Hietpas KR, Block PJ. 2022. Variability of summer cyanobacteria abundance: can season-ahead forecasts improve beach management? Lake Reserv Manage. 39:37–52. As anthropogenic eutrophication and the associated increase of cyanobacteria continue to plague inland waterbodies, local officials are seeking novel methods to proactively manage water resources. Cyanobacteria are of particular concern to health officials due to their ability to produce dangerous hepatotoxins and neurotoxins, which can threaten waterbodies for recreational and drinking-water purposes. Presently, however, there is no cyanobacteria outlook that can provide advance warning of a potential threat at the seasonal time scale. In this study, a statistical model is developed utilizing local and global scale season-ahead hydroclimatic predictors to evaluate the potential for informative cyanobacteria biomass and associated beach closure forecasts across the June–August season for a eutrophic lake in Wisconsin (United States). This model is developed as part of a subseasonal to seasonal cyanobacteria forecasting system to optimize lake management across the peak cyanobacteria season. Model skill is significant in comparison to June–August cyanobacteria observations (Pearson correlation coefficient = 0.62, Heidke skill score = 0.38). The modeling framework proposed here demonstrates encouraging prediction skill and offers the possibility of advanced beach management applications.","PeriodicalId":18017,"journal":{"name":"Lake and Reservoir Management","volume":"39 1","pages":"37 - 52"},"PeriodicalIF":1.5,"publicationDate":"2022-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49396124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-06-23DOI: 10.1080/10402381.2022.2072418
Lee Grove, E. Stell, L. Grove, R. Wright, D. DeVries
Abstract Grove L, Stell EG, Grove LJW, Wright RA, DeVries DR. 2022. Influence of blueback herring, Alosa aestivalis, on zooplankton in a southeastern US reservoir. Lake Reserv Manage. 38:256–267. Forage fishes like blueback herring (Alosa aestivalis) have been widely introduced, sometimes without careful consideration of potential ecological consequences. We compared biotic and abiotic factors before and after blueback herring introduction into Lewis Smith Lake, Alabama (United States), and tested for diet overlap among planktivorous species to quantify their potential ecological influences. Abiotic and biotic factors varied among regions of the lake, consistent with differences in agricultural practices and nutrient input within each region. Secchi depth increased and zooplankton density decreased, while chlorophyll a remained unchanged relative to before blueback herring introduction. Juvenile and adult blueback herring and threadfin shad (Dorosoma petenense) consumed the same zooplankton taxa; however, blueback herring consumed significantly larger individuals and significantly greater numbers of zooplankton than threadfin shad. Blueback herring also selectively consumed larger zooplankton than the average size in the reservoir population, while threadfin shad did not. Threadfin shad and blueback herring positively selected Bosmina and cyclopoid copepods. The taxonomic overlap and size selectivity in prey choice suggest that if blueback herring reduce larger zooplankton, threadfin shad and blueback herring diets are likely to increasingly overlap. Because of their differences in feeding strategies (i.e., related to zooplankton size differences) and habitat preferences, current evidence for potential competitive interactions between these planktivores appears limited; however, longer term concerns are that blueback herring could eventually reduce larger zooplankton to the extent where they would increasingly compete with threadfin shad as the most abundant forage fish in Lewis Smith Lake.
{"title":"Influence of blueback herring, Alosa aestivalis, on zooplankton in a southeastern US reservoir","authors":"Lee Grove, E. Stell, L. Grove, R. Wright, D. DeVries","doi":"10.1080/10402381.2022.2072418","DOIUrl":"https://doi.org/10.1080/10402381.2022.2072418","url":null,"abstract":"Abstract Grove L, Stell EG, Grove LJW, Wright RA, DeVries DR. 2022. Influence of blueback herring, Alosa aestivalis, on zooplankton in a southeastern US reservoir. Lake Reserv Manage. 38:256–267. Forage fishes like blueback herring (Alosa aestivalis) have been widely introduced, sometimes without careful consideration of potential ecological consequences. We compared biotic and abiotic factors before and after blueback herring introduction into Lewis Smith Lake, Alabama (United States), and tested for diet overlap among planktivorous species to quantify their potential ecological influences. Abiotic and biotic factors varied among regions of the lake, consistent with differences in agricultural practices and nutrient input within each region. Secchi depth increased and zooplankton density decreased, while chlorophyll a remained unchanged relative to before blueback herring introduction. Juvenile and adult blueback herring and threadfin shad (Dorosoma petenense) consumed the same zooplankton taxa; however, blueback herring consumed significantly larger individuals and significantly greater numbers of zooplankton than threadfin shad. Blueback herring also selectively consumed larger zooplankton than the average size in the reservoir population, while threadfin shad did not. Threadfin shad and blueback herring positively selected Bosmina and cyclopoid copepods. The taxonomic overlap and size selectivity in prey choice suggest that if blueback herring reduce larger zooplankton, threadfin shad and blueback herring diets are likely to increasingly overlap. Because of their differences in feeding strategies (i.e., related to zooplankton size differences) and habitat preferences, current evidence for potential competitive interactions between these planktivores appears limited; however, longer term concerns are that blueback herring could eventually reduce larger zooplankton to the extent where they would increasingly compete with threadfin shad as the most abundant forage fish in Lewis Smith Lake.","PeriodicalId":18017,"journal":{"name":"Lake and Reservoir Management","volume":"38 1","pages":"256 - 267"},"PeriodicalIF":1.5,"publicationDate":"2022-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46051520","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-06-16DOI: 10.1080/10402381.2022.2077865
R. Getchell, E. George, A. Rice, Joseph M. Malatos, B. Chambers, Ana Griefen, Chuck Nieder, L. Rudstam
Abstract Getchell RG, George E, Rice AN, Malatos JM, Chambers BM, Griefen A, Nieder C, Rudstam LG. 2022. Effects of ultrasonic control devises on fish. Lake Reserv Manage. 38:240–255. Harmful algal blooms (HABs) can have serious impacts on both ecosystem services and human health, and several mitigation techniques have been developed to control them. Ultrasonic sound sources can disrupt developing algal mats, causing concern that the acoustic energy emitted from these devices may have deleterious health or behavioral effects on nearby fishes. We conducted field and laboratory studies on the effects of ultrasonic control devices on resident fishes. Field observations in Oneida Lake, New York, of the behavioral response of fish to the ultrasonic sound were conducted in shallow water using line transects, and in deeper water using hydroacoustics. No avoidance behavior was detected in either shallow or deep water while the ultrasonic devices were operating. Under controlled laboratory conditions, 7 recreationally or ecologically important fish species and local wild tadpoles were exposed to sound produced by the ultrasonic control devices for a 2 week period. No behavioral effects were noted while fish and tadpoles were monitored during the exposure interval. Finally, no significant or harmful histological or morphological alterations to the skin, fins, gills, or internal organs were observed on either fish or tadpoles when specimens were examined after the 2 week exposure period.
Getchell RG, George E, Rice AN, Malatos JM, Chambers BM, Griefen A, Nieder C, Rudstam LG。2022. 超声波控制装置对鱼类的影响。湖泊保护区管理。38:240-255。有害藻华(HABs)对生态系统服务和人类健康都有严重影响，已经开发了几种缓解技术来控制它们。超声波声源可以破坏发育中的藻垫，引起人们担心这些设备发出的声能可能对附近鱼类的健康或行为产生有害影响。我们对超声波控制装置对鱼类的影响进行了实地和实验室研究。在纽约奥奈达湖，实地观察了鱼类对超声波的行为反应，在浅水区使用线样线，在深水区使用水声。当超声波装置工作时，在浅水或深水中均未检测到回避行为。在受控的实验室条件下，将7种娱乐或生态重要的鱼类和当地野生蝌蚪暴露在超声波控制装置产生的声音中2周。在暴露期间对鱼和蝌蚪进行监测时，没有发现行为影响。最后，在暴露2周后对鱼或蝌蚪的皮肤、鳍、鳃或内脏进行检查时，未观察到明显或有害的组织学或形态学改变。
{"title":"Effects of ultrasonic algal control devices on fish","authors":"R. Getchell, E. George, A. Rice, Joseph M. Malatos, B. Chambers, Ana Griefen, Chuck Nieder, L. Rudstam","doi":"10.1080/10402381.2022.2077865","DOIUrl":"https://doi.org/10.1080/10402381.2022.2077865","url":null,"abstract":"Abstract Getchell RG, George E, Rice AN, Malatos JM, Chambers BM, Griefen A, Nieder C, Rudstam LG. 2022. Effects of ultrasonic control devises on fish. Lake Reserv Manage. 38:240–255. Harmful algal blooms (HABs) can have serious impacts on both ecosystem services and human health, and several mitigation techniques have been developed to control them. Ultrasonic sound sources can disrupt developing algal mats, causing concern that the acoustic energy emitted from these devices may have deleterious health or behavioral effects on nearby fishes. We conducted field and laboratory studies on the effects of ultrasonic control devices on resident fishes. Field observations in Oneida Lake, New York, of the behavioral response of fish to the ultrasonic sound were conducted in shallow water using line transects, and in deeper water using hydroacoustics. No avoidance behavior was detected in either shallow or deep water while the ultrasonic devices were operating. Under controlled laboratory conditions, 7 recreationally or ecologically important fish species and local wild tadpoles were exposed to sound produced by the ultrasonic control devices for a 2 week period. No behavioral effects were noted while fish and tadpoles were monitored during the exposure interval. Finally, no significant or harmful histological or morphological alterations to the skin, fins, gills, or internal organs were observed on either fish or tadpoles when specimens were examined after the 2 week exposure period.","PeriodicalId":18017,"journal":{"name":"Lake and Reservoir Management","volume":"38 1","pages":"240 - 255"},"PeriodicalIF":1.5,"publicationDate":"2022-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48328160","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-06-09DOI: 10.1080/10402381.2022.2026541
Kendra R. Eaton, K. Tardy
Abstract Eaton KR, Tardy KA. 2022. Anadromy efficacy of native kokanee in Alturas Lake, Idaho. Lake Reserv Manage. 38:197–208. Partial migration is a complex process that can have profound impacts on ecosystems and populations. Oncorhynchus nerka ecotypes in the Sawtooth Valley include migratory and resident populations, with each exhibiting partial migration. Kokanee can exhibit anadromous behavior and therefore are valuable for O. nerka recovery. In the Sawtooth Valley, Alturas Lake supports a native kokanee population for which the ability to produce outmigrants could influence conservation decisions. In this study, we used contemporary genetic tools to identify the life history origin of Alturas Lake O. nerka outmigrants. Additionally we use population and survival estimates to determine the extent and success of any present kokanee migration. We found that in Alturas Lake, all juvenile outmigrants are progeny of native kokanee. We also found that increased population abundance is related to a higher number of outmigrants. Furthermore, juvenile survival estimates of Alturas kokanee outmigrants were similar to juvenile Redfish Lake sockeye salmon survival estimates. These similar survival estimates and return of anadromous kokanee adults throughout program history indicate that the Alturas Lake kokanee population is successful in exhibiting anadromous behavior. While kokanee are not a focus for O. nerka recovery, this study shows the importance of partial migration in a native kokanee population in preserving the anadromous life history strategy. Our results highlight that in locations with no sockeye salmon population, like Alturas Lake, native kokanee populations are vital to O. nerka recovery and should be monitored and protected accordingly. Supplemental data for this article is available online at https://doi.org/10.1080/10402381.2022.2026541.
{"title":"Anadromy efficacy of native kokanee in Alturas Lake, Idaho","authors":"Kendra R. Eaton, K. Tardy","doi":"10.1080/10402381.2022.2026541","DOIUrl":"https://doi.org/10.1080/10402381.2022.2026541","url":null,"abstract":"Abstract Eaton KR, Tardy KA. 2022. Anadromy efficacy of native kokanee in Alturas Lake, Idaho. Lake Reserv Manage. 38:197–208. Partial migration is a complex process that can have profound impacts on ecosystems and populations. Oncorhynchus nerka ecotypes in the Sawtooth Valley include migratory and resident populations, with each exhibiting partial migration. Kokanee can exhibit anadromous behavior and therefore are valuable for O. nerka recovery. In the Sawtooth Valley, Alturas Lake supports a native kokanee population for which the ability to produce outmigrants could influence conservation decisions. In this study, we used contemporary genetic tools to identify the life history origin of Alturas Lake O. nerka outmigrants. Additionally we use population and survival estimates to determine the extent and success of any present kokanee migration. We found that in Alturas Lake, all juvenile outmigrants are progeny of native kokanee. We also found that increased population abundance is related to a higher number of outmigrants. Furthermore, juvenile survival estimates of Alturas kokanee outmigrants were similar to juvenile Redfish Lake sockeye salmon survival estimates. These similar survival estimates and return of anadromous kokanee adults throughout program history indicate that the Alturas Lake kokanee population is successful in exhibiting anadromous behavior. While kokanee are not a focus for O. nerka recovery, this study shows the importance of partial migration in a native kokanee population in preserving the anadromous life history strategy. Our results highlight that in locations with no sockeye salmon population, like Alturas Lake, native kokanee populations are vital to O. nerka recovery and should be monitored and protected accordingly. Supplemental data for this article is available online at https://doi.org/10.1080/10402381.2022.2026541.","PeriodicalId":18017,"journal":{"name":"Lake and Reservoir Management","volume":"38 1","pages":"197 - 208"},"PeriodicalIF":1.5,"publicationDate":"2022-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44437196","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-05-24DOI: 10.1080/10402381.2022.2049404
A. Horne, W. K. Faisst
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).
{"title":"Hypolimnetic oxygenation 6. Improvement in fisheries, hydropower, and drought management with costs of installation and operation in Camanche Reservoir, California, United States","authors":"A. Horne, W. K. Faisst","doi":"10.1080/10402381.2022.2049404","DOIUrl":"https://doi.org/10.1080/10402381.2022.2049404","url":null,"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).","PeriodicalId":18017,"journal":{"name":"Lake and Reservoir Management","volume":"38 1","pages":"268 - 285"},"PeriodicalIF":1.5,"publicationDate":"2022-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44315486","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-04-03DOI: 10.1080/10402381.2022.2044668
A. Smith, A. Paterson
{"title":"Notice of change to the Editorial Board","authors":"A. Smith, A. Paterson","doi":"10.1080/10402381.2022.2044668","DOIUrl":"https://doi.org/10.1080/10402381.2022.2044668","url":null,"abstract":"","PeriodicalId":18017,"journal":{"name":"Lake and Reservoir Management","volume":"38 1","pages":"209 - 209"},"PeriodicalIF":1.5,"publicationDate":"2022-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46936190","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-03-16DOI: 10.1080/10402381.2022.2045400
M. Hoyer, D. Canfield
Abstract Hoyer MA, Canfield DE, Jr. 2022. A Limnological Yardstick based on phosphorus limitation. Lake Reserv Manage. 38:109–125. A new tool called a Limnological Yardstick was developed using long-term (15 to 35 yr) lake chemistry data collected by volunteers of the Florida LAKEWATCH program. This yardstick can assist managers of aquatic systems with identifying where there is a great probability that phosphorus is not only the limiting nutrient, but the limiting environmental factor. When a lake’s phosphorus–chlorophyll data lie below the yardstick’s lower 95% confidence interval, phosphorus may be the limiting nutrient but not the limiting environmental factor, indicating where phosphorus control strategies will most likely fail. The Limnological Yardstick cannot directly identify the limiting environmental factor(s), as this requires a thorough limnological study of the lake because each lake has unique properties. Limiting environmental factors discussed are nitrogen, true color (Pt-Co units), nonalgal suspended solids, flushing rate, and aquatic macrophytes. The potential impacts of limiting environmental factors on the classification of lake trophic state and eutrophication are also discussed.
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Pub Date : 2022-03-04DOI: 10.1080/10402381.2022.2027054
R. Tabor, M. Liermann, Howard A. Gearns, Z. Moore, Katherine D. Lynch, K. Kurko, Julie Crittenden, Monica E. Shoemaker
Abstract Tabor RA, Liermann MC, Gearns HA, Moore ZJ, Lynch KD, Kurko K, Crittenden J, Shoemaker ME. 2022. Effectiveness monitoring of juvenile Chinook salmon restoration projects in south Lake Washington, Washington State. Lake Reserv Manage. 38:180–196. We evaluated 4 large restoration projects in south Lake Washington that were designed to improve nearshore habitat for lake-rearing juvenile Chinook salmon (Oncorhynchus tshawytscha). Restoration projects included shoreline modification, substrate enhancement, addition of engineered log jams (ELJs), and nonnatal tributary improvements. For most projects, we used a BACI (before-after-control-impact) study design. Projects were evaluated by determining the nighttime abundance of juvenile Chinook salmon through visual observations (primarily snorkeling with some surface observations in small nonnatal tributaries). Juvenile Chinook salmon are typically concentrated in the south end of the lake near their natal stream, and the project that was the farthest away from the natal stream did not appear to be beneficial, likely because few Chinook salmon were present. The highest observed abundance of juvenile Chinook salmon was associated with ELJs, where the abundance in February to April was typically 2 to 5 times higher than along adjacent, open shorelines. From January to April, juvenile Chinook salmon were usually more abundant in a daylighted nonnatal tributary (i.e., reconfigured from an unusable underground culvert to a more natural stream channel at the surface) than in 2 reference sites. Overall, all 4 project types improved juvenile use of the restored area, with substrate enhancement generally having the weakest response and ELJs the strongest response. Although most restoration projects for salmonids in the Pacific Northwest have focused on lotic systems, our results suggest projects in lentic systems may also be beneficial and should be considered by land-use managers. Supplemental data for this article is available online at https://doi.org/10.1080/10402381.2022.2027054 .
Tabor RA, Liermann MC, Gearns HA, Moore ZJ, Lynch KD, Kurko K, Crittenden J, Shoemaker ME。2022. 华盛顿州南湖奇努克鲑鱼幼鱼恢复项目的有效性监测。湖泊保护区管理。38:180-196。我们评估了华盛顿南湖4个大型恢复项目，这些项目旨在改善湖边饲养的奇努克鲑鱼幼鱼的近岸栖息地。修复项目包括海岸线改造、基材加固、添加工程堵塞(ELJs)和非出生支流改善。对于大多数项目，我们使用BACI(控制影响前后)研究设计。通过目视观察(主要是在非出生的小支流中浮潜和一些水面观察)来确定幼年奇努克鲑鱼夜间的丰度，从而对项目进行评估。幼年奇努克鲑鱼通常集中在靠近其出生河流的湖泊南端，而离出生河流最远的项目似乎并不有利，可能是因为奇努克鲑鱼很少。观察到的奇努克鲑鱼幼鱼的最高丰度与elj有关，2月至4月的丰度通常是相邻开放海岸线的2至5倍。从1月到4月，幼年奇努克鲑鱼通常在有日光照射的非出生支流(即从无法使用的地下涵洞重新配置为更自然的地表溪流通道)中比在两个参考地点更丰富。总体而言，所有4种项目类型都改善了恢复区域的少年利用，其中基材增强通常反应最弱，ELJs反应最强。尽管太平洋西北地区大多数鲑鱼恢复项目都集中在生态系统上，但我们的研究结果表明，生态系统的项目也可能是有益的，应该被土地利用管理者考虑。本文的补充数据可在https://doi.org/10.1080/10402381.2022.2027054上在线获得。
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Pub Date : 2022-03-02DOI: 10.1080/10402381.2022.2029635
Emily Kindervater, Maggie Oudsema, Michael C. Hassett, C. Partridge, A. Steinman
Abstract Kindervater E, Oudsema M, Hassett MC, Partridge CG, Steinman AD. 2022. Assessment of the effectiveness of muck-digesting bacterial pellets. Lake Reserv Manage. 38:150–164. We assessed the ability of Mukk Busster bacterial pellets to decrease organic matter (OM) in lake sediments, as well as their impact on overlying water quality and the native bacterial community composition. Sediment and water from 3 lakes in Newaygo County, Michigan, were incubated for 8 weeks in enclosed tubes with 3 treatments: (1) temperature (ambient or ambient plus 3 C); (2) oxygen level (oxic or anoxic); and (3) pellets (present or absent). We found no statistically significant differences in change in OM between pelleted and control treatments. Sediments were also tested with or without pellets in open bins to include more sediment volume and surface area; again, there was no treatment effect of pellets. OM responses differed among lakes: Irrespective of pellet treatment, there was a slight increase in Hess Lake OM, a significant increase in Brooks Lake OM, and a significant decline in Pickerel Lake OM. We have no definitive explanation for the increases in OM, but because they occurred in both types of experimental containers, we believe the increases were not an artifact. The dominant genera in the bacterial community differed only among lakes, not among the pellet vs. control treatments. Our doses exceeded recommendations (due to the small sediment area used), which the manufacturer claims can change the bacterial composition, but our genetic analysis showed no differences in the flora. We conclude that these pellets are not an effective treatment to reduce sediment OM in these lakes. Supplemental data for this article is available online at https://doi.org/10.1080/10402381.2022.2029635.
{"title":"Assessment of the effectiveness of muck-digesting bacterial pellets","authors":"Emily Kindervater, Maggie Oudsema, Michael C. Hassett, C. Partridge, A. Steinman","doi":"10.1080/10402381.2022.2029635","DOIUrl":"https://doi.org/10.1080/10402381.2022.2029635","url":null,"abstract":"Abstract Kindervater E, Oudsema M, Hassett MC, Partridge CG, Steinman AD. 2022. Assessment of the effectiveness of muck-digesting bacterial pellets. Lake Reserv Manage. 38:150–164. We assessed the ability of Mukk Busster bacterial pellets to decrease organic matter (OM) in lake sediments, as well as their impact on overlying water quality and the native bacterial community composition. Sediment and water from 3 lakes in Newaygo County, Michigan, were incubated for 8 weeks in enclosed tubes with 3 treatments: (1) temperature (ambient or ambient plus 3 C); (2) oxygen level (oxic or anoxic); and (3) pellets (present or absent). We found no statistically significant differences in change in OM between pelleted and control treatments. Sediments were also tested with or without pellets in open bins to include more sediment volume and surface area; again, there was no treatment effect of pellets. OM responses differed among lakes: Irrespective of pellet treatment, there was a slight increase in Hess Lake OM, a significant increase in Brooks Lake OM, and a significant decline in Pickerel Lake OM. We have no definitive explanation for the increases in OM, but because they occurred in both types of experimental containers, we believe the increases were not an artifact. The dominant genera in the bacterial community differed only among lakes, not among the pellet vs. control treatments. Our doses exceeded recommendations (due to the small sediment area used), which the manufacturer claims can change the bacterial composition, but our genetic analysis showed no differences in the flora. We conclude that these pellets are not an effective treatment to reduce sediment OM in these lakes. Supplemental data for this article is available online at https://doi.org/10.1080/10402381.2022.2029635.","PeriodicalId":18017,"journal":{"name":"Lake and Reservoir Management","volume":"38 1","pages":"150 - 164"},"PeriodicalIF":1.5,"publicationDate":"2022-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42526123","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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