Organization profile

Organisation Profile

Our research focuses on the functioning of lake ecosystems, especially on food web interactions and nutrient cycling and their implications on lake restoration and management. Additionally, coastal environments are included in the studies. In the food web studies, many projects have been targeted on the effects of disturbances on predator-prey interactions and on the effects of top-down regulation. The studied disturbances have included for instance increasing water turbidity, water colour and turbulence. Studies on nutrient cycling have mostly been targeted on factors regulating the internal nutrient loading of lakes, including for instance sediment resuspension, bioturbation and oxygen conditions. Both pelagic and littoral zones have been included in the food web interaction studies as well as in nutrient cycling studies. The studies include field sampling, as well as experimental work in the field and in the laboratory. Many of the studies are connected to lake management and restoration projects and are planned to improve our knowledge on the effects and applicability of different restoration methods. The studied restoration methods include food web management (biomanipulation), artificial aeration and hypolimnetic withdrawal. The research results have affected the restoration activities of several lakes. Read more on our website

International and National Collaboration Publications and projects within past five years.

Projects

The development of internal loading phosphorus loading in an aerated lake

Horppila, J., Niemistö, J. & Silvonen, S.

01/02/201631/12/2107

Project: Research project

Freshwater Research (FRESH)

Aarnos, H., Brek-Laitinen, G., Estlander, S., Holmroos, H., Horppila, J., Huotari, J., Härkönen, L., Kahilainen, K., Kaitaranta, J., Korhonen, J., Kuivikko, M., Lappalainen, J., Lehtonen, H., Liljendahl, A., López Bellido, J., Malinen, T., Müller, S., Niemistö, J., Nurminen, L., Soininen, J., Ojala, A., Olin, M., Pekcan-Hekim, Z., Peltomaa, E., Uusikivi, J. A. J., Virtanen, L. K., Vähätalo, A. & Xiao, Y.

28/02/2011 → …

Project: Research Evaluation 2011

Publications

Development of Lake Vesijärvi through four decades of remediation efforts

Salonen, K., Sarvala, J., Horppila, J., Keto, J., Malin, I., Malinen, T., Niemisto, J. & Ruuhijarvi, J., 27 Jun 2020, In : Hydrobiologia. 19 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File

Impacts of a deep reactive layer on sedimentary phosphorus dynamics in a boreal lake recovering from eutrophication

Jilbert, T., Jokinen, S., Saarinen, T., Mattus-Kumpunen, U., Simojoki, A., Saarni, S., Salminen, S., Niemist, J. & Horppila, J., 19 May 2020, In : Hydrobiologia. 23 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access

Internal phosphorus loading due to sediment anoxia in shallow areas: implications for lake aeration treatments

Tammeorg, O., Nürnberg, G., Niemistö, J., Haldna, M. & Horppila, J., 2 May 2020, In : Aquatic Sciences. 82, 3, 10 p., 54.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File

Internal phosphorus loading in a small shallow Lake: Response after sediment removal

Kiani, M., Tammeorg, P., Niemistö, J., Simojoki, A. & Tammeorg, O., 10 Jul 2020, In : Science of the Total Environment. 725, 11 p., 138279.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File

Using Microcystin Gene Copies to Determine Potentially-Toxic Blooms, Example from a Shallow Eutrophic Lake Peipsi

Panksep, K., Tamm, M., Mantzouki, E., Rantala-Ylinen, A., Laugaste, R., Sivonen, K., Tammeorg, O. & Kisand, V., Apr 2020, In : Toxins. 12, 4, 21 p., 211.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File

Activities

Limnology and Oceanography: Methods (Journal)

Jukka Horppila (Reviewer)
7 Jan 202010 Jan 2020

Activity: Publication peer-review and editorial work typesPeer review of manuscripts

Participation in the inspection carried out by the Supreme Administrative Court

Jukka Horppila (Participant)
28 Aug 2019

Activity: Other activity typesOther

Hydrobiologia (Journal)

Jukka Horppila (Reviewer)
14 May 201918 May 2019

Activity: Publication peer-review and editorial work typesPeer review of manuscripts

Participation in the session of the Supreme Administrative Court

Jukka Horppila (Participant)
20 Jun 2019

Activity: Other activity typesOther

Participation in the session of the Supreme Administrative Court

Jukka Horppila (Participant)
21 Nov 2019

Activity: Other activity typesOther

Press / Media

TV interview on lake restoration

Jukka Horppila

04/06/2018

1 Media contribution

Press/Media: Press / Media

Haastattelu hoitokalastuksen soveltuvuudesta Hiidenveden kunnostukseen

Jukka Horppila

01/02/2013

1 Media contribution

Press/Media: Press / Media