Journal of Limnology最新文献

{"title":"Effects of water level management on lake littorals and downstream river areas","authors":"A. Boggero, M. Rogora, S. Quadroni","doi":"10.4081/jlimnol.2022.2166","DOIUrl":"https://doi.org/10.4081/jlimnol.2022.2166","url":null,"abstract":"The Interreg “Parks Verbano Ticino” (PVT) project was conceived within the technical committee dedicated to the “Experimentation of the regulation of the Lake Maggiore levels” following the requests of the water manager to raise the spring-summer maximum levels of the lake compared to the levels normally held in the same period to respond to the industrial, agricultural, touristic, and environmental needs...","PeriodicalId":50164,"journal":{"name":"Journal of Limnology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2023-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139278592","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":"In memoriam of Prof. Giuliano Bonomi (1933-2023)","authors":"Piero Guilizzoni","doi":"10.4081/jlimnol.2023.2169","DOIUrl":"https://doi.org/10.4081/jlimnol.2023.2169","url":null,"abstract":"In memoriam of Prof. Giuliano Bonomi","PeriodicalId":50164,"journal":{"name":"Journal of Limnology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2023-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139281720","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":"Lakes in the Anthropocene: Reflections on Tracking Ecosystem Change in the Arctic","authors":"Piero Guilizzoni","doi":"10.4081/jlimnol.2023.2170","DOIUrl":"https://doi.org/10.4081/jlimnol.2023.2170","url":null,"abstract":"This book - requested by S.J. Hawkins, the Editor of Excellence in Ecology, when John Smol was recognized with the International Ecology Institute Prize - is certainly one of the most modern and complete texts on the Canadian Arctic. The polar area like many other extreme environments that I studied during my scientific activity (e.g., Greenland, Antarctica, Svalbard archipelago, Finland Lapland and mountain ecosystems), has for years been subject to great alterations due to climate changes (“the big threat multiplier”), mine effluents, local and long-distance pollution. The book provides an excellent overview of how the arctic environment has developed during the last ca. 200 years and even before. The Arctic environment is transforming rapidly....","PeriodicalId":50164,"journal":{"name":"Journal of Limnology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2023-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139282413","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":"Assessment of phosphorus behavior in sediments of Lake Sevan, Armenia","authors":"T. Dadi, Wolf Von Tümpling, Chenxi Mi, Martin Schultze, Kurt Friese","doi":"10.4081/jlimnol.2022.2132","DOIUrl":"https://doi.org/10.4081/jlimnol.2022.2132","url":null,"abstract":"Lake Sevan is the largest freshwater lake in the Caucasus region and one of Eurasia's largest alpine lakes. The lake has been experiencing growing cyanobacteria blooms; however, the relevance of external and internal phosphorus (P) loading to its eutrophication is still not known. We carried out a sediment investigation of Lake Sevan to estimate the potentially mobile P, which could be a source of internal total phosphorus (TP)-loading; we also estimated external TP-loading and retention. The study was carried out at four sampling points of different depths to determine the spatial variability of P in 2018. The sediments had elevated TP contents at the sediment surface; potentially mobile P ranged from 20 to 60% in the top 2 cm. The upper 4 cm sediment had an elevated content of TN (8 to 16.1 mg N g-1 dw) and TP (1.2 to 1.7 mg P g-1 dw). Spatial variability of most of the measured parameters was more prominent in the upper 3 cm. External TP loading was estimated to be 110 tons annually, and the TP retention was 85%. The estimated TP stored in the top cm of the sediment is 1,500 tons. The potential for P release is high; the short-term exchange between oxic and anoxic overlying water could release 0.01 to 0.02 mg P L-1 from the top cm of the sediment, and long-term diagenesis and burial could release about 0.12 mg P cm-2. Internal P-loading in Lake Sevan may play an essential role in eutrophication, especially given the long flushing time of Lake Sevan.","PeriodicalId":50164,"journal":{"name":"Journal of Limnology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2023-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139314175","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":"Erratum: The increasing spread of the European barbel in the Italian large lowland rivers is threatening the native species","authors":"C. Antognazza, S. Quadroni, I. Vanetti, Vanessa De Santis, G. Crosa, S. Zaccara","doi":"10.4081/jlimnol.2022.2164","DOIUrl":"https://doi.org/10.4081/jlimnol.2022.2164","url":null,"abstract":"This corrects the article published on Journal of Limnology 2022;81(s2):2136. The Genbank accession numbers in the footnote of Table 1 are incorrect. The correct Table 1 footnote is: “PAN, Panperduto Dam; SL, Somma Lombardo; PV, Pavia; OG, Oglio River; *unique haplotypes, GenBank Acc. No. OQ676377-OQ676381.”","PeriodicalId":50164,"journal":{"name":"Journal of Limnology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2023-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139319930","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":"Oligochaete distribution in alpine freshwaters: not a mere question of altitude","authors":"Elzbieta Dumnicka, Kamil Najberek, Valeria Lencioni","doi":"10.4081/jlimnol.2023.2148","DOIUrl":"https://doi.org/10.4081/jlimnol.2023.2148","url":null,"abstract":"Alpine freshwater biodiversity is at risk of extinction due to climate change and some species could remain undescribed before they go extinct. These species are not yet included in red lists of protection by law, such as annelids in alpine habitats. Within this context, we studied the annelid fauna in 20 sites located between 1223 and 2703 m asl, belonging to different habitat types (kryal, glacio-rhithral, non-glacial streams, springs, littoral lake zone), in three glaciated catchments of the Italian Alps (Noce Bianco, Careser and Conca-Carè Alto; Trentino Province). The aim of this study was to describe the annelid communities of the different habitat types collected with different sampling methods (kick sampling and drift) and investigate the relationships between species richness and abundance with altitude. Between the years 2000 and 2005, we collected 4,765 individuals in 418 samples. One genus of Polychaeta (Aeolosoma) and 36 species of Oligochaeta were identified, distributed in four families: Enchytraeidae (28), Lumbriculidae (4), Naididae (3 and Tubificinae juveniles) and Haplotaxidae (1). Five species were new to Italy: Cernosvitoviella carpatica, Cernosvitoviella cf. crassoductus, Henlea brucei, Henlea glandulifera and Mesenchytraeus sanguineus. As expected, Enchytraeidae prevailed in all sites with the genera Cernosvitoviella and Cognettia the most abundant and frequent. The regression and cluster analyses and the generalized linear mixed models we performed, highlighted that the differences in species richness and abundance among sites are explainable partly by altitude but mainly by habitat type. A clear longitudinal species turnover was evident only in the Noce Bianco and Careser glacier-fed streams, where taxonomic diversity (tested by Seriation analysis) and abundance increased with increasing distance from the glacier front and decreasing altitude. Also expected, the harsh kryal habitat was the poorest in species and individuals, with a dominance of semi-aquatic and terrestrial enchytraeid taxa. Drift was found to be more effective than kick sampling in collecting oligochaetes, especially in glacier-fed streams where the use of the pond net is generally hindered by their high and highly variable discharge. In conclusion, this study provides new data on oligochaete fauna in alpine freshwaters, useful to implement the prevision models for Alpine biodiversity up to date not including annelid fauna.","PeriodicalId":50164,"journal":{"name":"Journal of Limnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135591962","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":"The increasing spread of the European barbel in the Italian large lowland rivers is threatening the native species","authors":"Caterina Maria Antognazza, Silvia Quadroni, Isabella Vanetti, Vanessa De Santis, Giuseppe Crosa, Serena Zaccara","doi":"10.4081/jlimnol.2022.2136","DOIUrl":"https://doi.org/10.4081/jlimnol.2022.2136","url":null,"abstract":"Freshwater ecosystems are heavily altered by human activities, with anthropic introductions of non-native species substantially contributing to their biotic degradation. The invasion by alien species can alter ecosystem balances with direct and indirect impacts across different levels of biotic organization. The number of invasive alien species is particularly high in Mediterranean fresh waters including rivers draining in the northern Adriatic basins. Here, the Padanian barbel Barbus plebejus endemic to the Padano-Venetian district, is threatened by the introduction of the European barbel Barbus barbus via competition and introgressive hybridization. In this study, we genetically characterised using the partial mitochondrial DNA Cytochrome b gene, barbels present in two main tributaries of the Po River, the lower Ticino and Oglio rivers where the two species are suspected to co-occur. Since the two river sections are highly regulated and present severe hydrological alterations caused by dams and other hydraulic structures, the aim of the study was to provide information on the barbel populations composition in these systems to foster the implementation of more suitable management plans aimed at the conservation of the native species. A total of 86 barbel have been analysed (50 in the Ticino River and 36 in the Oglio River) corresponding to 13 haplotypes of which 8 were phylogenetically attributed to B. barbus and five to B. plebejus. The high haplotypic diversity and the unimodal trend evidenced by the mismatch distribution analysis for B. barbus haplotypes support a potential demographic expansion. Altogether, these results highlighted that B. barbus is progressively expanding in northern Italy while posing a serious risk for the conservation of the native B. plebejus, stressing the need to actively focus ecosystem and fisheries management regulations to stop B. barbus from spreading further throughout northern Italy.","PeriodicalId":50164,"journal":{"name":"Journal of Limnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136235759","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":"Phytoplankton-zooplankton coupling in a cascade of hypertrophic fishponds","authors":"Marija Radojičić, Michal Šorf, Barbora Müllerová, Radovan Kopp","doi":"10.4081/jlimnol.2023.2145","DOIUrl":"https://doi.org/10.4081/jlimnol.2023.2145","url":null,"abstract":"In Central Europe, a significant proportion of shallow lake ecosystems are represented by artificial fishponds, where phytoplankton and zooplankton are an essential part of the food web. Owing to their high fish stocks and intensive fishery management, most fishponds are now eutrophic or hypertrophic, which has had clear impacts on plankton assemblages. To obtain a better understanding of phytoplankton-zooplankton coupling in fishponds, this study examines their ecological relationships in a cascade of three small fishponds over two subsequent years. In all, 133 phytoplankton taxa were recorded, mostly chlorophytes, diatoms and euglenophytes, and 60 zooplankton taxa. Multivariate analysis revealed dissolved oxygen content, dissolved inorganic nitrogen and biochemical oxygen demand as the main factors influencing phytoplankton biomass, while the most significant environment variables affecting zooplankton composition were dissolved oxygen, phosphate concentrations and conductivity. Co-correspondence analysis revealed a significant relationship between phytoplankton and zooplankton density, with cross-correlations from 76% to 87% within the first four axes. Such a high cross-correlation denotes a strong relationship between phytoplankton and zooplankton, even within the hypertrophic conditions determining fishpond ecosystems.","PeriodicalId":50164,"journal":{"name":"Journal of Limnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136153632","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":"Synoptic results on the potential impacts of the Lake Maggiore water management strategy on freshwater littoral ecosystems and invertebrate biocoenosis (NW, Italy)","authors":"Angela Boggero, Lyudmila Kamburska, Silvia Zaupa, Marzia Ciampittiello, Michela Rogora, Tiziana Di Lorenzo","doi":"10.4081/jlimnol.2022.2147","DOIUrl":"https://doi.org/10.4081/jlimnol.2022.2147","url":null,"abstract":"The first results of the application of the integrated multidisciplinary protocol to study the effects of water level management on the Lake Maggiore littoral habitats and biocoenosis are presented. The \"Parchi Verbano Ticino\" project (2019-2021, ID: 481668) was the driving force to fine-tune the monitoring and management system of multidisciplinary information (chemistry, hydro-morphology, macro- and meio-fauna monitoring). The study reveals that water level fluctuations in Lake Maggiore, sometimes characterized by measurable changes in water levels, have remarkable effects on littoral habitats and on the structure and function of macro- and meiofaunal assemblages living there. Overall, this study provides insights into the potential impacts of Lake Maggiore water management strategy on freshwater littoral ecosystems during late spring-early summer, and emphasizes the need for a comprehensive understanding of the lake ecosystem dynamics. Thanks to the results achieved, publicly endorsed water management rules will be stated, for the late spring-early summer period, considering frequency and amplitude of water level fluctuations as crucial factors in management plans to mitigate their impacts. The endorsed rules turn out to be a negotiated compromise between the maintenance of ecosystem services and the protection of littoral life below water.","PeriodicalId":50164,"journal":{"name":"Journal of Limnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136308095","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":"Lake Maggiore: geomorphological genesis, lake-level evolution, and present and future ecosystems importance","authors":"Cristian Scapozza, Nicola Patocchi","doi":"10.4081/jlimnol.2022.2146","DOIUrl":"https://doi.org/10.4081/jlimnol.2022.2146","url":null,"abstract":"Lake Maggiore, the second deeper and larger south alpine lake, was selected as a model system to detect the potential damages on water resources, biodiversity and ecosystem health caused by different water levels during the lake-level regulation period (March to November). With a drainage basin exceeding an altitude difference of 4400 m, Lake Maggiore fills a deep valley floor whose bedrock reaches up to 700 m below the present sea level. The cryptodepression occupied by the lake was probably formed during the end of the Miocene and the Pliocene and was shaped successively during the Pleistocene glaciations. Lake Maggiore originated following the Last Glaciation, when it reached its maximum lake-level and extension just after its deglaciation. The mean secular lake-level progressively decreased throughout the Holocene, causing a gradual shrinkage of the lake because of the constant depositional input that created the fluvio-deltaic plains at the mouth of the main tributaries of the lake. The regime of the tributaries is of mixed type, with a spring maximum mainly due to snowmelt and an autumn maximum exclusively of pluvial origin. Water levels naturally tend to reflect the amount of rain or snow precipitation and are expressed through a double cycle: winter and summer characterised by low waters, and spring and autumn by high waters. In 1943, the need to use the waters of the great lakes to have water available in the less favourable periods, led to the construction of a dam at the Lake Maggiore outlet. This structure allows to store water during heavy rainfall or snowmelt periods. The accumulated water is then supplied during the irrigation periods to agriculture (spring and summer) and to industrial users (mainly in autumn and winter). The geomorphological genesis and the ecosystems description was focused on riparian, fluvio-deltaic, and ephemeral systems. For these ecosystems, their evolution considering the hydrological regime of the tributaries, the anthropogenic activities in the watershed and the effects of lake-level management since 1943, was also described. Considering the summer increase, between April and July, to +1.25 m (with possible peaks to +1.50 m) experimentally tested between 2015 and 2020, and the approval of the proposal to continue the test for the next five-year period (2022-2026), we finally emphasise the potential further reduction of reeds and natural habitats and the subsequent loss of biodiversity related to the plan of raise the lake-level to +1.50 m all year round.","PeriodicalId":50164,"journal":{"name":"Journal of Limnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135208048","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}