HAKI offers possibilities to work in research areas as immunology, nutrition, technology, reproduction and genetics, water quality. All users will have full access to HAKI services and infrastructures. The respective researchers and technicians will be assigned to support work in infrastructures and laboratories. Assistance will be provided to users in finding accommodation and transportation in the institute’s close neighbourhood.

At our installations, we mainly deal with common carp, European catfish, sterlet, and pikeperch, which are commonly propagated in- and out-of-season. From the other domesticated and wild broodstocks in our gen-banks and wintering ponds, we possess African catfish, paddlefish, grass carp, Russian and Siberian sturgeon, pike, asp, perch, and Volga pikeperch which can be used for a seasonal egg, larvae, and juvenile production in case such material would be demanded by the user. Due to the diversity of our work, our experimental systems are set in such a way to be feasible for the work on various species and classes of fish.

HAKI offers two experimental installations, recirculation, and a pond system.


Infrastructure: MATE HAKI-RECIRK

Location: Szarvas, HUNGARY

Web site address:

Contact: Uroš Ljubobratović (


RECIRK installation is composed of 5 independent recirculation systems:

1. “Ballonos” – larviculture system for percids and cyprinids composed of twelve 250L cylindro-conical tanks and equipped with twelve 2L egg incubation Zug jars;

2. “Valyus” – larviculture system for sturgeons and catfishes composed of eight 250L raceway type tanks equipped with six 8L egg incubation Zug jars;

3. “18-as” – juvenile rearing system composed of three identical and separated systems each composed of six 1000L tanks each supplied with swirl separator, each system suitable for independent temperature in the range 15-25 C;

4. “Karanteen” – quarantine system composed of three 4 m3 raceway tanks suitable for seasonal and out-of-season reproduction trials;

5. “SDC” – disease challenge system is used for challenge tests with bacteria (Aeromonas hydrophila) flexible in terms of tank size and number.

Larvae and juvenile rearing systems are equipped with automatic feeding systems.

Services currently offered by the infrastructure

Our recirculation systems are suitable for the trials on the breeders, eggs, larvae, and juveniles in almost all freshwater European species. The disease challenge system is used for challenge tests with bacteria (Aeromonas hydrophila) either for independent studies or for the challenge tests on the fish previously subjected to experiments in other systems. Our researchers and technicians of the group for aquaculture technologies are skilled in the needed technological solutions for propagation and rearing in almost all freshwater aquaculture species offering a wide range of trials on larvae and juveniles. Researchers and technicians of the department for fish biology are well experienced in trials on fish genetics, fish welfare, and fish nutrition. The RECIRK installation is directly operated by a professional staff (six persons).

Modality of access

On average each user or user group is expected to stay 30 days at the infrastructure. Access to the infrastructure is expected to last 4-12 weeks depending on the nature of the trial. There are two types of accesses which are usually carried out at our infrastructure. Either the lead researcher is present throughout the whole access, or the lead researcher is present at the beginning and the end of the trial while the daily routines, monitoring, and data collections are done by our staff and supervised by either an internal expert or another researcher involved in the study at the time of proposal preparation. We are highly recommending to the potential users to communicate with us at least two months before the proposal writing so we could offer our assistance and integrate the plan into our agenda.

All users will be allowed full access to the institute’s experimental, laboratory, and office facilities necessary to perform the work described. Likewise, users will be assigned relevant researchers and technicians for assistance in all methodological issues and material needs connected to the trials. Fish material in terms of species and class will be properly prepared for the trials.

The operation of the experimental system will be integrated with a professional team for sampling (i.e. water, sediment, plankton, fish, etc.) and in situ measurements (i.e. oxygen, conductivity, pH, turbidity, temperature, etc.) and with professional analytical laboratories (equipped – among others – with water, TOC analyzer, atomic absorption, and ICP spectrometry) for water, sediment, soil, tissue, plant, etc. analysis, as well.

The researchers of the institute will share their knowledge (on fish genetics, immunology, nutrition, aquaculture production, wastewaters, irrigation, and aquatic ecosystems) and practical experiences with the guest and also can help to organize the logistics if necessary.

Unit of access

The unit of access is defined as one system/week for RECIRK. One typical access consists of 15 units of access for RECIRK.


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