• A new broad typology for rivers and lakes in Europe: Development and application for large-scale environmental assessments 

      Solheim, Anne Lyche; Globevnik, Lidija; Austnes, Kari; Kristensen, Peter; Moe, S. Jannicke; Persson, Jonas; Phillips, Geoff; Poikane, Sandra; van de Bund, Wouter; Birk, Sebastian (Journal article; Peer reviewed, 2019)
      European countries have defined >1000 national river types and >400 national lake types to implement the EU Water Framework Directive (WFD). In addition, common river and lake types have been defined within regions of ...
    • Comparing nutrient reference concentrations in Nordic countries with focus on lowland rivers 

      Skarbøvik, Eva; Aroviita, Jukka; Fölster, Jens; Solheim, Anne Lyche; Kyllmar, Katarina; Rankinen, Katri; Kronvang, Brian (Peer reviewed; Journal article, 2020)
      Reference conditions of water bodies are defined as the natural or minimal anthropogenically disturbed state. We compared the methods for determining total phosphorus and total nitrogen concentrations in rivers in Finland, ...
    • Ecological status assessment of European lakes: a comparison of metrics for phytoplankton, macrophytes, benthic invertebrates and fish 

      Solheim, Anne Lyche; Feld, Christian K.; Birk, Sebastian; Phillips, Geoff; Carvalho, Laurence; Morabito, Giuseppe; Mischke, Ute; Willby, Nigel; Søndergaard, Martin; Hellsten, Seppo; Kolada, Agnieszka; Mjelde, Marit; Böhmer, Jürgen; Miler, Oliver; Pusch, Martin T.; Argillier, Christine; Jeppesen, Erik; Lauridsen, Torben L.; Poikane, Sandra (Journal article; Peer reviewed, 2013)
      Data on phytoplankton, macrophytes, benthic invertebrates and fish from more than 2000 lakes in 22 European countries were used to develop and test metrics for assessing the ecological status of European lakes as required ...
    • Estimating nutrient thresholds for eutrophication management: Novel insights from understudied lake types 

      Poikane, Sandra; Kelly, Martyn G.; Várbíró, Gábor; Borics, Gábor; Erős, Tibor; Hellsten, Seppo; Kolada, Agnieszka; Lukács, Balázs András; Solheim, Anne Lyche; Pahissa López, José; Willby, Nigel J.; Wolfram, Georg; Phillips, Geoff (Peer reviewed; Journal article, 2022)
      Nutrient targets based on pressure-response models are essential for defining ambitions and managing eutrophication. However, the scale of biogeographical variation in these pressure-response relationships is poorly ...
    • Exploring the Suitability of Ecosystem Metabolomes to Assess Imprints of Brownification and Nutrient Enrichment on Lakes 

      Fonvielle, Jeremy A.; Giling, Darren P.; Dittmar, Thorsten; Berger, Stella Angela; Nejstgaard, Jens Christian; Solheim, Anne Lyche; Gessner, Mark O.; Grossart, Hans-Peter; Singer, Gabriel (Peer reviewed; Journal article, 2021)
      Loadings of colored dissolved organic matter (cDOM) and nutrients affect lake ecosystem functioning in opposite ways, rendering assessments of combined effects challenging. We used the “ecosystem metabolome” as a conceptual ...
    • Impacts of multiple stressors on freshwater biota across spatial scales and ecosystems 

      Birk, Sebastian; Chapman, Daniel; Carvalho, Laurence; Spears, Bryan M.; Andersen, Hans Estrup; Argillier, Christine; Auer, Stefan; Baattrup-Pedersen, Annette; Banin, Lindsay; Beklioğlu, Meryem; Bondar-Kunze, Elisabeth; Borja, Angel; Branco, Paulo; Bucak, Tuba; Buijse, Anthonie D.; Cardoso, Ana Cristina; Couture, Raoul-Marie; Cremona, Fabien; de Zwart, Dick; Feld, Christian K.; Ferreira, M Teresa; Feuchtmayr, Heidrun; Gessner, Mark O.; Gieswein, Alexander; Globevnik, Lidija; Graeber, Daniel; Graf, Wolfram; Gutiérrez-Cánovas, Cayetano; Hanganu, Jenica; Işkın, Uğur; Jarvinen, Marko; Jeppesen, Erik; Kotamäki, Niina; Kuijper, Marijn; Lemm, Jan U; Lu, Shenglan; Solheim, Anne Lyche; Mischke, Ute; Moe, S. Jannicke; Nõges, Peeter; Nõges, Tiina; Ormerod, Steve J; Panagopoulos, Yiannis; Phillips, Geoff; Posthuma, Leo; Pouso, Sarai; Prudhomme, Christel; Rankinen, Katri; Rasmussen, Jes Jessen; Richardson, Jessica; Sagouis, Alban; Santos, Jose Maria; Schäfer, Ralf B; Schinegger, Rafaela; Schmutz, Stefan; Schneider, Susanne Claudia; Schülting, Lisa; Segurado, Pedro; Stefanidis, Kostas; Sures, Bernd; Thackeray, Stephen J.; Turunen, Jarno; Uyarra, María C.; Venohr, Markus; von der Ohe, Peter Carsten; Willby, Nigel; Hering, Daniel (Peer reviewed; Journal article, 2020)
      Climate and land-use change drive a suite of stressors that shape ecosystems and interact to yield complex ecological responses (that is, additive, antagonistic and synergistic effects). We know little about the spatial ...
    • Integrated assessment of ecological status and misclassification of lakes: The role of uncertainty and index combination rules 

      Moe, S. Jannicke; Solheim, Anne Lyche; Soszka, Hanna; Golub, Malgorzata; Hutorowicz, Andrzej; Kolada, Agnieszka; Picinska-Faltynowicz, Joanna; Bialokoz, Witold (Journal article; Peer reviewed, 2015)
      The European Water Framework Directive (WFD) requires that the ecological status of waterbodies is assessed using multiple biological quality elements (BQEs) that are combined into a single status class. The recommended ...
    • Making waves. Bridging theory and practice towards multiple stressor management in freshwater ecosystems 

      Spears, Bryan M.; Chapman, Daniel S.; Carvalho, Laurence; Feld, Christian K.; Gessner, Mark O.; Piggott, Jeremy J.; Banin, Lindsay F.; Gutiérrez-Cánovas, Cayetano; Solheim, Anne Lyche; Richardson, Jessica A.; Schinegger, Rafaela; Segurado, Pedro; Thackeray, Stephen J.; Birk, Sebastian (Peer reviewed; Journal article, 2021)
      Despite advances in conceptual understanding, single-stressor abatement approaches remain common in the management of fresh waters, even though they can produce unexpected ecological responses when multiple stressors ...
    • Miljøtilstanden i Mjøsa med tilløpselver 2016 

      Løvik, Jarl Eivind; Solheim, Anne Lyche; Stuen, Odd Henning; Eriksen, Tor Erik; Kile, Maia Røst; Skjelbred, Birger (NIVA-rapport;7132, Research report, 2017)
      Biomassen av planteplankton var i 2016 på omtrent samme nivå som i 2014 og 2015. Kiselalger, svelgflagellater og gullalger utgjorde de største gruppene innen plante-planktonet, og andelen cyanobakterier (blågrønnalger) var ...
    • Miljøtilstanden i Mjøsa med tilløpselver 2017 

      Solheim, Anne Lyche; Løvik, Jarl Eivind; Stuen, Odd Henning; Thrane, Jan-Erik; Eriksen, Tor Erik; Kile, Maia Røst; Skjelbred, Birger (NIVA-rapport;7255, Research report, 2018)
      Konklusjonen på overvåkingen av Mjøsa i 2017 er at innsjøen er i god økologisk tilstand. Biomassen av planteplankton var lav og i god tilstand på alle målestasjonene med unntak av i september, da det var betydelig mer ...
    • Miljøtilstanden i Mjøsa med tilløpselver 2018 

      Solheim, Anne Lyche; Thrane, Jan-Erik; Skjelbred, Birger; Kile, Maia Røst; Håll, Johnny Peter; Økelsrud, Asle; Selvik, John Rune; Stuen, Odd Henning (NIVA-rapport;7364, Research report, 2019)
      Konklusjonen på overvåkingen av Mjøsa i 2018 er at innsjøen er i god økologisk tilstand. Biomassen av planteplankton var lav på alle måle-stasjonene med unntak av i september, da det var betydelig mer kiselalger på alle ...
    • Miljøtilstanden i Mjøsa med tilløpselver 2019 

      Solheim, Anne Lyche; Thrane, Jan-Erik; Skjelbred, Birger; Kile, Maia Røst; Håll, Johnny Peter; Økelsrud, Asle; Selvik, John Rune (NIVA-rapport;7483, Research report, 2020)
      Mjøsa’s hovedvannmasser var i god økologisk tilstand i 2019, bortsett fra Furnesfjorden, som hadde moderat tilstand. Men vannet ved badeplassene rundt Mjøsa var grønt og grumsete i slutten av juli pga. en betydelig ...
    • Nutrient criteria for surface waters under the European Water Framework Directive: Current state-of-the-art, challenges and future outlook 

      Poikane, Sandra; Kelly, Martyn G; Salas Herrero, Fuensanta; Pitt, Jo-Anne; Jarvie, Helen P; Claussen, Ulrich; Leujak, Wera; Solheim, Anne Lyche; Teixeira, Heliana; Phillips, Geoff (Peer reviewed; Journal article, 2019)
      The aim of European water policy is to achieve good ecological status in all rivers, lakes, coastal and transitional waters by 2027. Currently, more than half of water bodies are in a degraded condition and nutrient ...
    • Potential impacts of a future Nordic bioeconomy on surface water quality 

      Marttila, Hannu; Lepistö, Ahti; Tolvanen, Anne; Bechmann, Marianne; Kyllmar, Katarina; Juutinen, Artti; Wenng, Hannah Tabea; Skarbøvik, Eva; Futter, Martyn; Kortelainen, Pirkko; Rankinen, Katri; Hellsten, Seppo; Kløve, Bjørn; Kronvang, Brian; Kaste, Øyvind; Solheim, Anne Lyche; Bhattacharjee, Joy; Rakovic, Jelena; de Wit, Heleen (Peer reviewed; Journal article, 2020)
      Nordic water bodies face multiple stressors due to human activities, generating diffuse loading and climate change. The ‘green shift’ towards a bio-based economy poses new demands and increased pressure on the environment. ...
    • Predicting Lake Quality for the Next Generation: Impacts of Catchment Management and Climatic Factors in a Probabilistic Model Framework 

      Moe, S. Jannicke; Couture, Raoul-Marie; Haande, Sigrid; Solheim, Anne Lyche; Jackson-Blake, Leah Amber (Journal article; Peer reviewed, 2019)
      Lake ecosystems across the world are under combined pressures of eutrophication and climate change, which increase the risk of harmful cyanobacteria blooms, reduced ecological status, and degraded ecosystem services. In ...
    • Protecting and restoring Europe's waters: An analysis of the future development needs of the Water Framework Directive 

      Carvalho, Laurence; Mackay, Eleanor B.; Cardoso, Ana Cristina; Baattrup-Pedersen, Annette; Birk, Sebastian; Blackstock, Kirsty L.; Borics, Gábor; Borja, Angel; Feld, Christian K.; Ferreira, Maria Teresa; Globevnik, Lidija; Grizzetti, Bruna; Hendry, Sarah; Hering, Daniel; Kelly, Martyn; Langaas, Sindre; Meissner, Kristian; Panagopoulos, Yiannis; Penning, Ellis; Rouillard, Josselin; Sabater, Sergi; Schmedtje, Ursula; Spears, Bryan M.; Venohr, Markus; van de Bund, Wouter; Solheim, Anne Lyche (Journal article; Peer reviewed, 2019)
    • Restaurering av Sæbyvannet. Rapport fra workshop om tilstand, belastninger og mulige tiltak 

      Solheim, Anne Lyche; Gunnarsdottir, Helga; Haande, Sigrid; Skarbøvik, Eva; Bechmann, Marianne; Brabrand, Åge; Jantsch, Tor Gunnar; Hammer, Lars Otto (NIVA-rapport;6536, Research report, 2013)
      Sæbyvannet i Vannområdet Morsa i Østfold har dårlig økologisk tilstand til tross for omfattende tiltak for å redusere eksterne tilførsler av næringssalter de senere år. En workshop ble organisert i januar 2013 for å ...
    • Simulating water quality and ecological status of Lake Vansjø, Norway, under land-use and climate change by linking process-oriented models with a Bayesian network 

      Couture, Raoul-Marie; Moe, S. Jannicke; Lin, Yan; Kaste, Øyvind; Haande, Sigrid; Solheim, Anne Lyche (Journal article; Peer reviewed, 2018)
      Excess nutrient inputs and climate change are two of multiple stressors affecting many lakes worldwide. Lake Vansjø in southern Norway is one such eutrophic lake impacted by blooms of toxic blue-green algae (cyanobacteria), ...
    • Store innsjøer i Norge: Kan eksisterende data brukes til klassifisering av økologisk og kjemisk tilstand i hht. vannforskriften? 

      Persson, Jonas; Solheim, Anne Lyche; Schartau, Ann Kristin; Sandlund, Odd Terje; Walseng, Bjørn (NIVA-rapport;6605, Research report, 2013)
      Målet med dette prosjektet var å lage en oversikt over metadata som finnes for de store innsjøene i Norge og vurdere om dataene er tilstrekkelig til å kunne klassifisere økologisk og kjemisk tilstand. Metadata for vannkjemi, ...
    • Tiltaksorientert overvåking i vannområde Mjøsa. Årsrapport for 2016 

      Løvik, Jarl Eivind; Solheim, Anne Lyche; Eriksen, Tor Erik; Kile, Maia Røst; Skjelbred, Birger (NIVA-rapport;7144, Research report, 2017-04)
      Rapporten omhandler vannkvalitet, biologiske forhold og økologisk tilstand i vannområde Mjøsa i 2016 samt tidsutviklingen gjennom overvåkingsperioden 1972-2016. Miljøtilstanden i Mjøsa har blitt sterkt forbedret med hensyn ...