EU network of mesocosms facilities for research on marine and freshwater ecosystems open for global collaboration.

Tihany Outdoor Mesocosms (TOM)

No opening for TA in 2020

No opening for TA in 2019

No opening for TA in 2018

Name
Tihany Outdoor Mesocosms
Legal name of organisation
Magyar Tudomanyos Akademia Okologiai Kutatokozpont
Country
Hungary
Continent
Europe
Organisation address

Magyar Tudomanyos Akademia Okologiai Kutatokozpont,
KLEBELSBERG KUNO UTCA 3,
Tihany
8237

Primary contact information (PI)

Ferenc Jordán,
KLEBELSBERG KUNO UTCA 3,
Tihany >br /> 8237

jordan.ferenc@gmail.com

Years of Mesocosm Experiments
starting in 2019
Description of Facility

The outdoor mesocosm facility consists of 12 outdoor cylindrical plastic tanks; each has a volume of 5 cubic meters and water depth of about 1.5 m. The sensors deployed in the mesocosms gauge the following parameters: dissolved oxygen, oxygen saturation, water temperature, pH, redox potential, conductivity, TDS, light irradiation. The tanks can be filled either with tap water, or with water from Lake Balaton filtered in three phases (gravel, – sand, – and UV filters).

Controlled Parameters
  • water temperature (electric heating cables are planted in each mesocosms)
  • light irradiation (at the top of each mesocosms there is has a LED lamp emitting a light spectrum similar to sunlight)
  • speed of water circulation (an airlift mixing system circulates the water in the mesocosms with adjustable carrying capacity)
  • nutrients in the water column
  • heating and additional light irradiation are controlled by a programmable logic controller (PLC) system
Research Topics
  • micro-evolution and co-evolution of aquatic organisms;
  • food web studies (perturbations, indirect effects, community response);
  • ecological stoichiometry;
  • effects of temperature (climate change) and nutrient load (eutrophication)
Facility location(s)
Primary interests
  • microevolution
  • community ecology
Specialist areas
  • evolutionary biology
  • systems ecology
  • freshwater ecology
  • environmental sciences
Source of Information
Photos of experiments/installations

Foto credit: Ferenc Jordan
Foto credit: Ferenc Jordan
Foto credit: Ferenc Jordan

TA

Infrastructure (short name)
TOM
Installation (short name)
Location

Tihany, Hungary.

Coordinates / (routes, areas if non-static)
Water / environmental conditions

Shallow Freshwater

Depths / bottom / surface
Description

Description of the infrastructure: The Tihany mesocosm facility (TOM) was built in 2018 and it is under its test period with some pilot experiments running. It is an open-door facility, 10 meters from Lake Balaton, the biggest shallow lake in Europe (average depth 3.25 m). The mesocosms are located in the park of the Balaton Limnological Institute of MTA Centre for Ecological Research, established in 1927. TOM consists of 12 cylindrical plastic tanks of 5 m3 volume and 1.5 m depth each. The sensors deployed in the mesocosms gauge dissolved oxygen, oxygen saturation, water temperature, pH, redox potential, conductivity, TDS and light irradiation. The tanks can be filled either with tap water or with water from Lake Balaton filtered in three phases (gravel, sand and UV). We can control water temperature (electric heating cables are planted in each mesocosms), light irradiation (at the top of each mesocosms there is a LED lamp emitting a light spectrum similar to sunlight) and the speed of water circulation (an airlift mixing system circulates the water in the mesocosms with adjustable carrying capacity). Heating and additional light irradiation are controlled by a programmable logic controller (PLC) system.

Balaton Limnological Institute at Lake Balaton (l), Tihany Outdoor Mesocosms (r), Hungary.
Instruments / sensors / equipment
Modality of access

Modality of access under AQUACOSM-plus: A total of at least 360 person days will be allocated to external users through TA provided under AQUACOSM-plus. It is anticipated that AQUACOSM-plus will support stays of at least 4 persons for 45 days in M22-33. TOM is flexible to host as many visitors as possible for shorter stays. The main area of research in the mesocosm is experimental food web manipulation in parallel with in silico food web simulations. We study the community response following single-species and pairwise disturbances and measure the additivity of responses. Also, we are interested in general manipulations (nutrients, temperature) and research on the chemical communication between fish and zooplankton.

Unit of access

Persondays

What is available and when
What service and support facilities are available

Services currently offered by the infrastructure: MTA OK has and various laboratories (water chemistry, isotope analysis, flow cytometry and a well-equipped molecular genetics lab), a guesthouse, a meeting room, a library as well as sampling vessels. The team of researchers, students, assistants and engineers is still taking shape, as the TOM is brand new. Local researchers have solid background in water chemistry, ecotoxicology, the ecology of various taxa (phytoplankton, invertebrates, fish ecology) and also in GIS and spatial ecology. There is also a strong group of systems ecologists and modellers. Altogether MTA OK has a staff of ca 30 researchers and 30 non-researchers.

Support offered under AQUACOSM-plus: Users will have access to the services described above, including lab space, accommodation and access to local databases.

Accommodation

The Balaton Limnological Institute provides accommodation in its guesthouse (http://www.blki.hu/vendeghaz/index_en.html).

Special rules