Blar i NIVA Open Access Archive på forfatter "Ballot, Andreas"
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Carotenoid glycoside isolated and identified from cyanobacterium Cylindrospermopsis raciborskii
Nagy, Veronika; Agócs, Attila; Deli, József; Gulyás-Fekete, Gergely; Illyés, Tünde-Zita; Kurtán, Tibor; Turcsi, Erika; Béni, Szabolcs; Dékány, Miklós; Ballot, Andreas; Vasas, Gábor (Journal article; Peer reviewed, 2018)The freshwater cyanobacterium Cylindrospermopsis raciborskii was investigated for carotenoid composition. Besides β-carotene, echinenone and (9/9′Z)-echinenone a carotenoid glycoside was found to be the main component. ... -
Charophytes in warm springs on Svalbard (Spitsbergen): DNA barcoding identifies Chara aspera and Chara canescens with unusual morphological traits
Langangen, Anders; Ballot, Andreas; Nowak, Petra; Schneider, Susanne C (Peer reviewed; Journal article, 2019)The Troll springs are warm springs on Svalbard (Spitsbergen). Charophytes were collected in the years 1910, 1912, 1958, 1992/1993, and 2018. However, since the Chara samples showed unusual morphological traits, there were ... -
Conservation of biodiversity and improved management of protected areas in Myanmar. Aquatic macrophytes and phytoplankton in Indawgyi Lake
Mjelde, Marit; Ballot, Andreas; Swe, Thida (NIVA-rapport;7253, Research report, 2018)The aim of the study has been to give important and improved knowledge about aquatic macrophytes and phytoplankton biodiversity in the Indawgyi Lake. The survey took place in September 2017 and included physical measurements, ... -
A contribution to the knowledge of charophytes in Myanmar; morphological and genetic identification and ecology notes
Mjelde, Marit; Swe, Thida; Langangen, Anders; Ballot, Andreas (Peer reviewed; Journal article, 2020)Information on the distribution and species composition of charophytes in Myanmar is scarce. Only a few studies on charophytes in ponds were conducted in Myanmar at the end of the nineteenth and first half of the twentieth ... -
Cylindrospermopsin- and Deoxycylindrospermopsin-Producing Raphidiopsis raciborskii and Microcystin-Producing Microcystis spp. in Meiktila Lake, Myanmar
Ballot, Andreas; Swe, Thida; Mjelde, Marit; Cerasino, Leonardo; Hostyeva, Vladyslava; Miles, Christopher O. (Peer reviewed; Journal article, 2020)Meiktila Lake is a shallow reservoir located close to Meiktila city in central Myanmar. Its water is used for irrigation, domestic purposes and drinking water. No detailed study of the presence of cyanobacteria and their ... -
Distribution, identification and range expansion of the common Asellidae in Northern Europe, featuring the first record of Proasellus meridianus in the Nordic countries
Kemp, Joanna Lynn; Ballot, Andreas; Nilssen, Jens Petter; Spikkeland, Ingvar; Eriksen, Tor Erik (Peer reviewed; Journal article, 2020)Two out of the three common Asellidae species in Northern Europe are increasing their ranges, aided by human activities. Here we report the discovery of Proasellus coxalis (Dollfuss 1892) in new areas in Norway and the ... -
Diversity of cyanobacteria and cyanotoxins in Hartbeespoort Dam, South Africa
Ballot, Andreas; Sandvik, Morten; Rundberget, Thomas; Botha, Christo J.; Miles, Christopher O. (Journal article; Peer reviewed, 2014)The South African Hartbeespoort Dam is known for the occurrence of heavy Microcystis blooms. Although a few other cyanobacterial genera have been described, no detailed study on those cyanobacteria and their potential toxin ... -
DNA barcoding the genus Chara: Molecular evidence recovers fewer taxa than the classical morphological approach
Schneider, Susanne Claudia; Rodrigues, Anuar; Moe, Therese Fosholt; Ballot, Andreas (Journal article; Peer reviewed, 2015)Charophytes (Charales) are benthic algae with a complex morphology. They are vulnerable to ecosystem changes, such as eutrophication, and are red‐listed in many countries. Accurate identification of Chara species is critical ... -
Forprosjekt: Institusjonsbygging innen vannforvaltning i Myanmar. Rapport fra perioden juli 2014 – januar 2015.
Wathne, Bente Margrethe; Ballot, Andreas; Christiansen, Anne Bjørkenes; Blakseth, Tomas Adler; Mjelde, Marit; Nesheim, Ingrid; Selvik, John Rune (NIVA-rapport;6788, Research report, 2015)I januar 2014 ble tre prosjektforslag under miljøprogrammet mellom Myanmar og Norge, hvor NIVAs samarbeid om vannforvaltning inngår, levert UD/Ambassaden i Yangon. Prosjektforslagene ble evaluert av et eget team våren 2014. ... -
Forprosjekt: Institusjonsbygging innen vannforvaltning i Myanmar. Rapport fra perioden juli – desember 2013.
Wathne, Bente Margrethe; Thaulow, Håkon; Berge, Dag; Lichtenthaler, Rainer; Blakseth, Tomas Adler; Christiansen, Anne Bjørkenes; Nesheim, Ingrid; Ballot, Andreas (NIVA-rapport; 6627, Research report, 2014)NIVA har i løpet av siste halvdel av 2013 besøkt Miljø- og skogdepartementet (MOECAF) i Myanmar to ganger, og har hatt god kontakt med nøkkelpersoner for vårt samarbeid. På bakgrunn av befaringer og møter i Nay Pyi Taw ... -
Genetic and morphological variation in Chara contraria and a taxon morphologically resembling Chara connivens
Trbojević, Ivana; Marković, Aleksandra; Blaženčić, Jelena; Subakov Simić, Gordana; Nowak, Petra; Ballot, Andreas; Schneider, Susanne Claudia (Peer reviewed; Journal article, 2020)Charophyte species delineation is regularly based on a set of thallus morphological characteristics, but considering pronounced phenotypic plasticity, difficulties and doubts commonly occur in Chara species determination. ... -
The importance of aquatic macrophytes in a eutrophic tropical shallow lake
Swe, Thida; Lombardo, Paola; Ballot, Andreas; Thrane, Jan-Erik; Sample, James; Eriksen, Tor Erik; Mjelde, Marit (Peer reviewed; Journal article, 2021)Inlay Lake is the second largest natural lake in Myanmar. Located in Shan State, in the eastern part of the country, it is a known biodiversity hotspot. The lake is negatively affected by an increasing local human population ... -
Integrated Water Resources Management in Myanmar - Aquatic macrophytes in lakes in Myanmar 2014-2020 - Field survey and identification
Mjelde, Marit; Ballot, Andreas; Swe, Thida (NIVA-rapport;7864-2023, Research report, 2023)This report is performed by NIVA, as part of the project Integrated Water Resources Management – Institutional Building and Training. The purpose of this report is to assist experts undertaking biological field surveys in ... -
Integrated Water Resources Management in Myanmar Ecology of Rivers, Lakes, and Reservoirs
Ballot, Andreas; Mjelde, Marit; Eriksen, Tor Erik; Håll, Johnny; Gundersen, Cathrine Brecke; Braaten, Hans Fredrik Veiteberg (NIVA-rapport;7855-2023, Research report, 2023)This is the final report from output 1 of the IWRM project 2015-2024. The goal of the project was to implement a classification system for the ecological status of rivers and lakes in Myanmar like the EU Water Framework ... -
Integrated Water Resources Management in Myanmar. Assessing ecological status in Inlay Lake.
Ballot, Andreas; Mjelde, Marit; Swe, Thida (NIVA-rapport;7301, Research report, 2018)The report is one of the deliverables of the project Integrated water resources management – Institutional building and training. The main purpose of the report has been to achieve improved knowledge about aquatic biodiversity ... -
Integrated Water Resources Management in Myanmar. Assessing ecological status in Inlay Lake. Preliminary report
Ballot, Andreas; Mjelde, Marit; Swe, Thida (NIVA-rapport;7162, Research report, 2017)The report is one of the deliverables of the project Integrated water resources management – Institutional building and training. The main purpose of the report has been to achieve improved knowledge about aquatic biodiversity ... -
Integrated Water Resources Management in Myanmar. Water usage and introduction to water quality criteria for lakes and rivers in Myanmar. Preliminary report.
Mjelde, Marit; Ballot, Andreas; Swe, Thida; Eriksen, Tor Erik; Nesheim, Ingrid; Aung, Toe Toe (NIVA-rapport;7163, Research report, 2017)The purpose of the report is to present some first recommendation for the development of Myanmar ecological quality criteria using the system of the EU Water Framework Directive (EU WFD) as baseline, with main focus on the ... -
Lake browning counteracts cyanobacteria responses to nutrients: Evidence from phytoplankton dynamics in large enclosure experiments and comprehensive observational data
Solheim, Anne Lyche; Gundersen, Hege; Mischke, Ute; Skjelbred, Birger; Nejstgaard, Jens Christian; Guislain, Alexis L. N.; Sperfeld, Erik; Giling, Darren P.; Haande, Sigrid; Ballot, Andreas; Moe, S. Jannicke; Stephan, Susanne; Walles, Tim J. W.; Jechow, Andreas; Minguez, Laetitia; Ganzert, Lars; Hornick, Thomas; Hansson, Truls Hveem; Stratmann, Cleo N.; Järvinen, Marko; Drakare, Stina; Carvalho, Laurence; Grossart, Hans-Peter; Gessner, Mark O.; Berger, Stella Angela (Peer reviewed; Journal article, 2023)Lakes worldwide are affected by multiple stressors, including climate change. This includes massive loading of both nutrients and humic substances to lakes during extreme weather events, which also may disrupt thermal ... -
Microcystin profiles in European noble crayfish Astacus astacus and water in Lake Steinsfjorden, Norway
Miles, Christopher Owen; Strand, David; Rusch, Johannes; Ballot, Andreas; Haande, Sigrid; Løvberg, Kjersti Eriksen; Vrålstad, Trude; Samdal, Ingunn Anita (Peer reviewed; Journal article, 2024)Lake Steinsfjorden, an important noble crayfish (Astacus astacus) habitat, is often affected by blooms of Planktothrix spp. that produce microcystins (MCs). A poor correlation between MCs by ELISA in the water and in ... -
Microcystins in European Noble Crayfish Astacus astacus in Lake Steinsfjorden, a Planktothrix-Dominated Lake
Samdal, Ingunn Anita; Strand, David; Ballot, Andreas; Rusch, Johannes; Haande, Sigrid; Løvberg, Kjersti Eriksen; Miles, Christopher Owen; Vrålstad, Trude (Peer reviewed; Journal article, 2020)Lake Steinsfjorden, an important Norwegian location for noble crayfish (Astacus astacus), is often affected by cyanobacterial blooms caused by microcystin (MC)-producing Planktothrix spp. The impact of MCs on noble crayfish ...