{"title":"Amatitlán Lake Brief: Current State, Experiences and Lessons Learned","authors":"Sharon van Tuylen, Margaret Dix","doi":"10.1111/lre.70025","DOIUrl":"https://doi.org/10.1111/lre.70025","url":null,"abstract":"<div>\u0000 \u0000 <p>Lake Amatitlán is the fourth largest lake in Guatemala. It is located within the Pacific drainage basin, 25 km southwest of Guatemala City, and represents the principal water reservoir for the city area and surroundings. Its main tributary is the Villalobos River, which receives water from rivers that are distributed through the 14 municipalities that constitute the lake's 382 km<sup>2</sup> watershed. Due to its location, the lake is highly influenced by urban development and population growth, as well as inadequate watershed management. Urban growth has caused the degradation of the surrounding forests and ecosystems. The Villalobos River has become a conduit for domestic and industrial wastewater that flows into the lake, increasing nutrient loads from anthropogenic activities in the watershed and altering the lake's natural physicochemical and ecological characteristics. Therefore, it has experienced cultural eutrophication and is a hypereutrophic waterbody. To recover, the lake requires strong institutional commitment from the Government, local authorities, and stakeholders of the basin in addition to large investments.</p>\u0000 </div>","PeriodicalId":39473,"journal":{"name":"Lakes and Reservoirs: Research and Management","volume":"31 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148753245","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Amatitlán Lake Brief: Current State, Experiences and Lessons Learned","authors":"Sharon van Tuylen, Margaret Dix","doi":"10.1111/lre.70025","DOIUrl":"https://doi.org/10.1111/lre.70025","url":null,"abstract":"<div>\u0000 \u0000 <p>Lake Amatitlán is the fourth largest lake in Guatemala. It is located within the Pacific drainage basin, 25 km southwest of Guatemala City, and represents the principal water reservoir for the city area and surroundings. Its main tributary is the Villalobos River, which receives water from rivers that are distributed through the 14 municipalities that constitute the lake's 382 km<sup>2</sup> watershed. Due to its location, the lake is highly influenced by urban development and population growth, as well as inadequate watershed management. Urban growth has caused the degradation of the surrounding forests and ecosystems. The Villalobos River has become a conduit for domestic and industrial wastewater that flows into the lake, increasing nutrient loads from anthropogenic activities in the watershed and altering the lake's natural physicochemical and ecological characteristics. Therefore, it has experienced cultural eutrophication and is a hypereutrophic waterbody. To recover, the lake requires strong institutional commitment from the Government, local authorities, and stakeholders of the basin in addition to large investments.</p>\u0000 </div>","PeriodicalId":39473,"journal":{"name":"Lakes and Reservoirs: Research and Management","volume":"31 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148753244","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"","authors":"","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":39473,"journal":{"name":"Lakes and Reservoirs: Research and Management","volume":"31 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148097188","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"","authors":"","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":39473,"journal":{"name":"Lakes and Reservoirs: Research and Management","volume":"31 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148098914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Arturo Chacon Torres, Frida Sauno Contreras, Catalina Rosas Monge, Rafael Trueba Regalado, Xuchitl Marilyn Angel Camacho, Alma Itzel Jacobo Escamilla, Alejandro Carrillo Valdes
{"title":"Lake Zirahuen, Michoacan, Mexico: Advances in Lake Deterioration","authors":"Arturo Chacon Torres, Frida Sauno Contreras, Catalina Rosas Monge, Rafael Trueba Regalado, Xuchitl Marilyn Angel Camacho, Alma Itzel Jacobo Escamilla, Alejandro Carrillo Valdes","doi":"10.1111/lre.70024","DOIUrl":"https://doi.org/10.1111/lre.70024","url":null,"abstract":"<div>\u0000 \u0000 <p>Zirahuen is among the youngest and clearest lakes in Mexico. It is situated at an elevation of 2075 m within the Mexican Neovolcanic Axis, which extends from east to west along the 19th parallel. Its primary economic activities include forestry, agriculture, tourism and fishing for indigenous species such as whitefish (<i>Chirostoma estor copandaro</i>). The drainage basin of Lake Zirahuen, like many Latin American hydrological basins, is under severe degradation due to deforestation, unsustainable farming and land-use changes. These issues lead to soil erosion, siltation, reduced water storage capacity, and pollution from agrochemicals. Consequently, there is an increase in economic and social decline associated with poverty and marginalization. This study aims to evaluate the environmental and governance conditions of Lake Zirahuen, using extensive documentary research and fieldwork to verify structural variables and processes. A management and restoration plan is proposed to emphasize the preservation of this important Mexican aquatic ecosystem.</p>\u0000 </div>","PeriodicalId":39473,"journal":{"name":"Lakes and Reservoirs: Research and Management","volume":"31 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148098913","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"","authors":"","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":39473,"journal":{"name":"Lakes and Reservoirs: Research and Management","volume":"31 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148093883","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Arturo Chacon Torres, Frida Sauno Contreras, Alma Jacobo Escamilla, Catalina Rosas Monge, Rafael Trueba Regalado, Ricardo Querea Estrada, Andrea Maritxel Chacon Chavez
{"title":"Lake Cuitzeo, Michoacán, México: Effects of Environmental Deterioration","authors":"Arturo Chacon Torres, Frida Sauno Contreras, Alma Jacobo Escamilla, Catalina Rosas Monge, Rafael Trueba Regalado, Ricardo Querea Estrada, Andrea Maritxel Chacon Chavez","doi":"10.1111/lre.70022","DOIUrl":"https://doi.org/10.1111/lre.70022","url":null,"abstract":"<div>\u0000 \u0000 <p>Cuitzeo is the second-largest lake in Mexico (452 km<sup>2</sup>). With an age of 6.0–8.0 million years, it is considered one of the oldest lakes on Earth. Field, laboratory and documentary research were developed to integrate an environmental diagnosis. The lake is very shallow, with a mean depth of 1.6 m. According to electric conductivity values, it is divided into three lacustrine zones: the eastern zone, with very low electric conductivity values (429.0 μS/cm); the western side, with up to 8950.0 μS/cm; and the central part, with intermediate values. Water quality analyses indicate that Cuitzeo is a hypereutrophic aquatic ecosystem, highly turbid and with increasingly saprobic conditions. Despite the basin area (3675 km<sup>2</sup>) receiving an average annual rainfall and surface runoff of almost 4000 Mm<sup>3</sup>, intensive water overexploitation and high evaporation rates resulting from deforestation and land-use change cause Lake Cuitzeo to receive less than 10% of the water input from the basin. Consequently, during arid seasons, up to 70% of the lake surface desiccates, and dust storms are present on the western side. The fishery is near collapse due to intensive fishing and frequent desiccation episodes. From 5546 tons/year of fish catch registered in 1993, fish productivity has fallen to less than 250 tons/year in 2006. Forty-five years ago, up to 18 fish species were registered, of which 15 were native. Nowadays, only six species are present, of which three are native species.</p>\u0000 </div>","PeriodicalId":39473,"journal":{"name":"Lakes and Reservoirs: Research and Management","volume":"31 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148096111","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"","authors":"","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":39473,"journal":{"name":"Lakes and Reservoirs: Research and Management","volume":"31 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148093884","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Arturo Chacon-Torres, Frida Sauno-Contreras, Catalina Rosas-Monge, Rafael Trueba Regalado, Karen Ximena Tzintzun-Pedraza, Lesly Janet Martinez-Ramirez, Alma Itzel Jacobo-Escamilla
{"title":"Lake Patzcuaro, Michoacan, Mexico: The Challenge for Sustainable Restoration","authors":"Arturo Chacon-Torres, Frida Sauno-Contreras, Catalina Rosas-Monge, Rafael Trueba Regalado, Karen Ximena Tzintzun-Pedraza, Lesly Janet Martinez-Ramirez, Alma Itzel Jacobo-Escamilla","doi":"10.1111/lre.70023","DOIUrl":"https://doi.org/10.1111/lre.70023","url":null,"abstract":"<div>\u0000 \u0000 <p>An environmental assessment of Lake Patzcuaro was conducted through simultaneous and systematic fieldwork on bathymetry, water quality, fisheries and P'urhepecha community interactions, along with a review of scientific literature from 1938 to 2022. This study aimed to develop a proposal to address major regional issues by describing the environmental conditions of the drainage basin, lake and natural resources. Deforestation between 2001 and 2021 resulted in the loss of up to 62.5% of primary forest, equivalent to 58,000 ha, including fir, pine, alnus and oak. The water balance shows a progressive deficit driven by high evapotranspiration and groundwater extraction, totaling up to 32.89 Mm<sup>3</sup>/year. A comparison of morphometric parameters based on bathymetric maps from 1989 and 2019 confirmed a decrease in lake surface area to 100.59 km<sup>2</sup>, a reduction in maximum length to 18.0 km, a decrease in maximum width to 8.4 km, and shoreline length at 90.9 km. These changes, along with declines in water quality, pollution and overfishing, have led to the collapse of local fisheries. In 1988, fish production was 2523 tons. However, it gradually declined, reaching a maximum catch of 54.18 tons in 2005. Human population growth, incompatible land use, pollution, habitat loss and overexploitation are accelerating the environmental degradation of Lake Patzcuaro. Currently, low fish production is primarily for self-consumption. A strategic plan based on the ILBM-ILEC methodology is essential to secure sustainable benefits from regional natural resources, with social participation playing a key role.</p>\u0000 </div>","PeriodicalId":39473,"journal":{"name":"Lakes and Reservoirs: Research and Management","volume":"31 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148082722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"","authors":"","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":39473,"journal":{"name":"Lakes and Reservoirs: Research and Management","volume":"31 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148086443","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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