{"title":"Winter-Spring fauna of Cladocera of Dali Bai Autonomous Prefecture, Yunnan Province, China","authors":"A. Sinev, Gu Yangliang, B. Han","doi":"10.23818/limn.39.40","DOIUrl":"https://doi.org/10.23818/limn.39.40","url":null,"abstract":"","PeriodicalId":49906,"journal":{"name":"Limnetica","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46577440","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}
{"title":"First record of the redclaw crayfish Cherax quadricarinatus (Von Martens, 1868) on the Iberian Peninsula","authors":"A. Arias, Antonio Torralba-Burrial","doi":"10.23818/limn.40.03","DOIUrl":"https://doi.org/10.23818/limn.40.03","url":null,"abstract":"","PeriodicalId":49906,"journal":{"name":"Limnetica","volume":"2 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84740948","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}
{"title":"Determination of the Trophic State Index (TSI) using remote sensing, bathymetric survey and empirical data in a tropical reservoir","authors":"L. Vecchioni, M. Arculeo, J. Sala, F. Marrone","doi":"10.23818/limn.39.37","DOIUrl":"https://doi.org/10.23818/limn.39.37","url":null,"abstract":"","PeriodicalId":49906,"journal":{"name":"Limnetica","volume":"29 1","pages":""},"PeriodicalIF":1.4,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78805860","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}
espanolLa Limnologia teorica es un tema olvidado en estos tiempos. Por eso, aqui proponemos un intento modesto de iniciar y promover teorias limnologicas, explorando las relaciones mecanicistas entre biogeoquimica, produccion, riqueza especifica y redes troficas para los tipos mas frecuentes de tamano de lago, que son los pequenos y medianos. Aunque el numero de estudios que ofrece resultados para apoyar dichas relaciones es bastante reducido, algunas bien conocidas de estas facilitan el organizar los lagos dentro de un esquema conceptual que usa la retencion del agua, el fosforo total y el carbono organico disuelto como variables de control. Considerar todas las variables de respuesta por unidad de superficie permitira pasar por alto el importante asunto de la profundidad, y el de la estratificacion termica por lo tanto. Nuestro esquema conceptual vislumbra siete tipos de lagos con conjuntos de respuestas unicas relativas a la riqueza de especies, la conectancia de las redes troficas, los flujos biogeoquimicos y la productividad lacustre. Una mayor concrecion de este modelo conceptual y la extension del mismo a todos los ambientes estancados (de los pequenos a los grandes) podran llevarse a cabo cuando haya mas datos sobre estos temas, probablemente teniendo en cuenta ademas alguna variable relativa al transporte horizontal. Tras esta contribucion, nos gustaria ver nuevos desarrollos teoricos que –ademas– presten atencion a la Limnologia mediterranea, la cual difiere un poco de la existente en las zonas templadas frias y tropicales del globo. EnglishTheoretical Limnology is a neglected topic nowadays. Here we make an endeavour to launch and promote theoretical developments in Limnology, dealing with the mechanistic relationships among biogeochemistry, production, species richness and food webs in the most common-sized lakes, i.e. small-to-medium ones. Although few studies are currently underway to support includes such relationships, well-known interactions enable us to place such lakes within a conceptual model bottom-up model, which include water retention, total phosphorus and dissolved organic carbon as the driving variables. All response variables are viewed on the basis of area, which enables circumventing the otherwise important issue of depth (and hence stratification). Seven lake types are considered with unique sets of features concerning species richness, food web connectance, nutrient fluxes and lake metabolism. The extension and tuning of this conceptual model to all stagnant waters (from small to large) can be undertaken when more data on these topics are available, probably taking horizontal transport features into account. We look forward to seeing future developments in theoretical Limnology, also paying special attention to Mediterranean limnological features which differ somewhat from those of cold temperate- and tropical areas.
{"title":"Towards a comprehensive picture of lakes: biogeochemistry, biodiversity, production and food web relationships revisited","authors":"M. A. Cobelas, C. Rojo, S. Carrillo","doi":"10.23818/LIMN.39.41","DOIUrl":"https://doi.org/10.23818/LIMN.39.41","url":null,"abstract":"espanolLa Limnologia teorica es un tema olvidado en estos tiempos. Por eso, aqui proponemos un intento modesto de iniciar y promover teorias limnologicas, explorando las relaciones mecanicistas entre biogeoquimica, produccion, riqueza especifica y redes troficas para los tipos mas frecuentes de tamano de lago, que son los pequenos y medianos. Aunque el numero de estudios que ofrece resultados para apoyar dichas relaciones es bastante reducido, algunas bien conocidas de estas facilitan el organizar los lagos dentro de un esquema conceptual que usa la retencion del agua, el fosforo total y el carbono organico disuelto como variables de control. Considerar todas las variables de respuesta por unidad de superficie permitira pasar por alto el importante asunto de la profundidad, y el de la estratificacion termica por lo tanto. Nuestro esquema conceptual vislumbra siete tipos de lagos con conjuntos de respuestas unicas relativas a la riqueza de especies, la conectancia de las redes troficas, los flujos biogeoquimicos y la productividad lacustre. Una mayor concrecion de este modelo conceptual y la extension del mismo a todos los ambientes estancados (de los pequenos a los grandes) podran llevarse a cabo cuando haya mas datos sobre estos temas, probablemente teniendo en cuenta ademas alguna variable relativa al transporte horizontal. Tras esta contribucion, nos gustaria ver nuevos desarrollos teoricos que –ademas– presten atencion a la Limnologia mediterranea, la cual difiere un poco de la existente en las zonas templadas frias y tropicales del globo. EnglishTheoretical Limnology is a neglected topic nowadays. Here we make an endeavour to launch and promote theoretical developments in Limnology, dealing with the mechanistic relationships among biogeochemistry, production, species richness and food webs in the most common-sized lakes, i.e. small-to-medium ones. Although few studies are currently underway to support includes such relationships, well-known interactions enable us to place such lakes within a conceptual model bottom-up model, which include water retention, total phosphorus and dissolved organic carbon as the driving variables. All response variables are viewed on the basis of area, which enables circumventing the otherwise important issue of depth (and hence stratification). Seven lake types are considered with unique sets of features concerning species richness, food web connectance, nutrient fluxes and lake metabolism. The extension and tuning of this conceptual model to all stagnant waters (from small to large) can be undertaken when more data on these topics are available, probably taking horizontal transport features into account. We look forward to seeing future developments in theoretical Limnology, also paying special attention to Mediterranean limnological features which differ somewhat from those of cold temperate- and tropical areas.","PeriodicalId":49906,"journal":{"name":"Limnetica","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41553204","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}
Iris Amati Martins, Marcelo Luiz Martins Pompêo, M. Bitencourt
Determination of the Trophic State Index (TSI) using remote sensing, bathymetric survey and empirical data in a
利用遥感、水深测量和经验数据确定营养状态指数（TSI）
{"title":"Determination of the Trophic State Index (TSI) using remote sensing, bathymetric survey and empirical data in a tropical reservoir","authors":"Iris Amati Martins, Marcelo Luiz Martins Pompêo, M. Bitencourt","doi":"10.23818/limn.39.35","DOIUrl":"https://doi.org/10.23818/limn.39.35","url":null,"abstract":"Determination of the Trophic State Index (TSI) using remote sensing, bathymetric survey and empirical data in a","PeriodicalId":49906,"journal":{"name":"Limnetica","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49614903","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}
{"title":"Barriers to longitudinal river connectivity: review of impacts, study methods and management for Iberian fish conservation","authors":"Amaia A. Rodeles, R. Miranda, D. Galicia","doi":"10.23818/limn.39.39","DOIUrl":"https://doi.org/10.23818/limn.39.39","url":null,"abstract":"","PeriodicalId":49906,"journal":{"name":"Limnetica","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44264123","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}
Introduced fish in Pyrenean high mountain lakes: impact on amphibians and other organisms, and conservation
比利牛斯高山湖泊引进鱼类：对两栖动物和其他生物的影响以及保护
{"title":"Introduced fish in Pyrenean high mountain lakes: impact on amphibians and other organisms, and conservation implications","authors":"A. Miró, M. Ventura","doi":"10.23818/limn.39.19","DOIUrl":"https://doi.org/10.23818/limn.39.19","url":null,"abstract":"Introduced fish in Pyrenean high mountain lakes: impact on amphibians and other organisms, and conservation","PeriodicalId":49906,"journal":{"name":"Limnetica","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2020-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48195871","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}
X. Perpinyà, Esther Patricia Urrego, Marcela Pereira Sandoval, A. Ruiz-Verdú, J. Soria, J. Delegido, E. Vicente, José Moreno Méndez
espanolDesde los anos 70, la Albufera de Valencia es un lago hipertrofico, y a pesar de los esfuerzos para revertir el sistema a un estado de aguas claras, como el tratamiento de aguas residuales y la construccion de filtros verdes, estos no han dado los resultados esperados, clasificandose aun como malo segun la implementacion de la Directiva Marco del Agua en la legislacion espanola. Actualmente el lago requiere un monitoreo constante y la transparencia del agua, como profundidad del disco Secchi (SDD), es un parametro clave para el seguimiento de la calidad del agua. La teledeteccion ofrece ventajas sustanciales sobre los metodos tradicionales de monitoreo, siendo una herramienta optima para el monitoreo continuo del estado de calidad de las aguas superficiales. El objetivo es calibrar y validar un algoritmo para la estimacion de la SDD a partir de Sentinel-2 (A y B), con el sensor MSI, multiespectral (13 bandas) de 404 nm a 2200 nm, una resolucion espacial de 10, 20 y 60 m y una frecuencia temporal de 5 dias (revisita en el Ecuador), valores impensables en imagenes de libre acceso. De las 81 imagenes tomadas por el satelite entre 2016 y 2017, solo se pudieron utilizar 40 imagenes debido a la presencia de nubes. Se utilizo el software SNAP 5 para el procesamiento, utilizando la herramienta Sen2Cor para la correccion atmosferica y el algoritmo desarrollado para estimar la SDD del lago. Para la validacion con muestras de campo, se llevaron a cabo 20 campanas de muestreo, tomando 114 medidas de la SDD. Tambien se midio la concentracion de clorofila a en cada punto de muestreo y se recogieron datos hidrologicos, de precipitacion y viento. La calibracion muestra su robustez con un R2 de 0.673 utilizando 79 muestras. Los resultados de la validacion utilizando 35 muestras son muy buenos, con un RMSE de 0.06 m, mostrando la precision del algoritmo. De la interpretacion de los mapas tematicos, extrajimos que la variacion temporal de la SDD sigue un patron bimodal anual, donde el aumento de la SDD viene determinada por un aumento significativo de la renovacion del agua. El algoritmo desarrollado para estimar la SDD a partir de imagenes S2 es preciso y apropiado para su uso dentro de un protocolo para monitorizar el estado ecologico del lago EnglishThe Albufera of Valencia has been a hypertrophic lake since the 1970s. Extensive efforts to revert the system to a clear water state, such as wastewater treatment and green filters construction, have not yielded the desired results; Albufera is still qualified as “bad” according to the Spanish Water Framework Directive implementation. Currently, the lake requires constant monitoring, and water transparency, measured by Secchi disc depth (SDD), is a key parameter for evaluating water quality. Remote sensing offers substantial advantages over traditional monitoring methods such as SDD because it allows the quality of the surface waters to be continuously monitored. This work aimed to calibrate and validate an al
{"title":"Monitoring water transparency of a hypertrophic lake (the Albufera of València) using multitemporal Sentinel-2 satellite images","authors":"X. Perpinyà, Esther Patricia Urrego, Marcela Pereira Sandoval, A. Ruiz-Verdú, J. Soria, J. Delegido, E. Vicente, José Moreno Méndez","doi":"10.23818/limn.39.24","DOIUrl":"https://doi.org/10.23818/limn.39.24","url":null,"abstract":"espanolDesde los anos 70, la Albufera de Valencia es un lago hipertrofico, y a pesar de los esfuerzos para revertir el sistema a un estado de aguas claras, como el tratamiento de aguas residuales y la construccion de filtros verdes, estos no han dado los resultados esperados, clasificandose aun como malo segun la implementacion de la Directiva Marco del Agua en la legislacion espanola. Actualmente el lago requiere un monitoreo constante y la transparencia del agua, como profundidad del disco Secchi (SDD), es un parametro clave para el seguimiento de la calidad del agua. La teledeteccion ofrece ventajas sustanciales sobre los metodos tradicionales de monitoreo, siendo una herramienta optima para el monitoreo continuo del estado de calidad de las aguas superficiales. El objetivo es calibrar y validar un algoritmo para la estimacion de la SDD a partir de Sentinel-2 (A y B), con el sensor MSI, multiespectral (13 bandas) de 404 nm a 2200 nm, una resolucion espacial de 10, 20 y 60 m y una frecuencia temporal de 5 dias (revisita en el Ecuador), valores impensables en imagenes de libre acceso. De las 81 imagenes tomadas por el satelite entre 2016 y 2017, solo se pudieron utilizar 40 imagenes debido a la presencia de nubes. Se utilizo el software SNAP 5 para el procesamiento, utilizando la herramienta Sen2Cor para la correccion atmosferica y el algoritmo desarrollado para estimar la SDD del lago. Para la validacion con muestras de campo, se llevaron a cabo 20 campanas de muestreo, tomando 114 medidas de la SDD. Tambien se midio la concentracion de clorofila a en cada punto de muestreo y se recogieron datos hidrologicos, de precipitacion y viento. La calibracion muestra su robustez con un R2 de 0.673 utilizando 79 muestras. Los resultados de la validacion utilizando 35 muestras son muy buenos, con un RMSE de 0.06 m, mostrando la precision del algoritmo. De la interpretacion de los mapas tematicos, extrajimos que la variacion temporal de la SDD sigue un patron bimodal anual, donde el aumento de la SDD viene determinada por un aumento significativo de la renovacion del agua. El algoritmo desarrollado para estimar la SDD a partir de imagenes S2 es preciso y apropiado para su uso dentro de un protocolo para monitorizar el estado ecologico del lago EnglishThe Albufera of Valencia has been a hypertrophic lake since the 1970s. Extensive efforts to revert the system to a clear water state, such as wastewater treatment and green filters construction, have not yielded the desired results; Albufera is still qualified as “bad” according to the Spanish Water Framework Directive implementation. Currently, the lake requires constant monitoring, and water transparency, measured by Secchi disc depth (SDD), is a key parameter for evaluating water quality. Remote sensing offers substantial advantages over traditional monitoring methods such as SDD because it allows the quality of the surface waters to be continuously monitored. This work aimed to calibrate and validate an al","PeriodicalId":49906,"journal":{"name":"Limnetica","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2020-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48280045","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}
M. Roca‐Cusachs, M. Goula, Cesc Múrria i Farnós, P. Estrada, L. Jiménez, Núria Sellarés, M. Ordeix, N. P. Fornells
New evidences on the presence of Aphelocheirus aestivalis in the Iberian Peninsula, its ecology and description of two northeastern Iberian populations The waterbug Aphelocheirus aestivalis is herein recorded for the first time in Northeastern Iberian Peninsula, constituting the first citation of the family Aphelocheiridae in the region. Yet, later on in 1989, the description of three new endemic Iberian species belonging to Aphelocheirus implied the assumption that A. aestivalis was absent in the Iberian Peninsula. Here, we show strong evidences of the presence of this species by the collection of individuals in two isolated stream reaches located 36 km apart, in the two Mediterranean rivers Llobregat and Ter. The Iberian specimens studied showed slight differentiation from other European specimens in the structures of male internal genital. Photographs of the habitus of the male and female are provided. More than 25 years of study of these rivers show that Aphelocheirus sp. is confined solely to a short stretch in both rivers. Our study thus suggests that the distribution of A. aestivalis in the Iberian Peninsula should be revised and further investigated, and warns of urgent measures to improve, or at least preserve, the habitat and the hydrological conditions rivers Llobregat and Ter to protect the species.
{"title":"New evidences on the presence of Aphelocheirus aestivalis in the Iberian Peninsula, its ecology and description of two northeastern Iberian populations","authors":"M. Roca‐Cusachs, M. Goula, Cesc Múrria i Farnós, P. Estrada, L. Jiménez, Núria Sellarés, M. Ordeix, N. P. Fornells","doi":"10.23818/limn.39.11","DOIUrl":"https://doi.org/10.23818/limn.39.11","url":null,"abstract":"New evidences on the presence of Aphelocheirus aestivalis in the Iberian Peninsula, its ecology and description of two northeastern Iberian populations The waterbug Aphelocheirus aestivalis is herein recorded for the first time in Northeastern Iberian Peninsula, constituting the first citation of the family Aphelocheiridae in the region. Yet, later on in 1989, the description of three new endemic Iberian species belonging to Aphelocheirus implied the assumption that A. aestivalis was absent in the Iberian Peninsula. Here, we show strong evidences of the presence of this species by the collection of individuals in two isolated stream reaches located 36 km apart, in the two Mediterranean rivers Llobregat and Ter. The Iberian specimens studied showed slight differentiation from other European specimens in the structures of male internal genital. Photographs of the habitus of the male and female are provided. More than 25 years of study of these rivers show that Aphelocheirus sp. is confined solely to a short stretch in both rivers. Our study thus suggests that the distribution of A. aestivalis in the Iberian Peninsula should be revised and further investigated, and warns of urgent measures to improve, or at least preserve, the habitat and the hydrological conditions rivers Llobregat and Ter to protect the species.","PeriodicalId":49906,"journal":{"name":"Limnetica","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2020-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46859187","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}
Fouzi Taybi Abdelkhaleq, G. Chavanon, A. Berrahou, A. Millán
{"title":"The alien boatman Trichocorixa verticalis verticalis (Hemiptera: Corixidae) is expanding in Morocco","authors":"Fouzi Taybi Abdelkhaleq, G. Chavanon, A. Berrahou, A. Millán","doi":"10.23818/limn.39.04","DOIUrl":"https://doi.org/10.23818/limn.39.04","url":null,"abstract":"","PeriodicalId":49906,"journal":{"name":"Limnetica","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2020-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47174254","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：