As part of the implementation of the ReFresh Fish LIFE project (LIFE24‑NAT‑HR‑Refresh‑Fish‑LIFE/101216203), led by the Krka National Park Public Institution, the first project field activity was carried out with the aim of strengthening the capacities of involved stakeholders and initiating the removal of invasive alien fish species.
The project, with a total value exceeding €4 million, of which 75% is co‑financed by the European Union, has been implemented since 1 September 2025 and will run until 31 August 2030. It focuses on improving the conservation status of five endemic freshwater fish species in the Šibenik‑Knin and Split‑Dalmatia Counties, which are threatened by invasive alien species, habitat degradation, and alterations in natural water regimes.
The introductory educational and field activity brought together project partners and staff involved in the implementation of project actions. The training was delivered by experts from the Faculty of Science, University of Zagreb, a project partner. Activities were carried out over two days at several locations within the Natura 2000 network, including Visovačko Lake, the Čikola and Vrba Rivers, and Miloševo and Stipančevo Lakes.
On the first day, participants were introduced to fieldwork methodologies, with a particular focus on fish sampling techniques using nets and electrofishing equipment. Following the theoretical introduction, practical fieldwork was conducted, allowing participants to apply the acquired knowledge under real field conditions.
On the second day, the nets were retrieved and the collected samples processed. Fish were counted, measured, weighed, and identified on site. The collected data were systematically entered into standardized data sheets and will serve as a basis for catch reports, further scientific analyses, and long‑term population monitoring.
This activity marked the beginning of concrete conservation measures within the project, aimed at achieving a long‑term improvement in the conservation status of endangered freshwater species. Regular removal of invasive species and systematic monitoring will continue at predefined locations, ensuring consistent data collection and effective management of these valuable freshwater ecosystems.
Through activities such as invasive alien species control, habitat restoration, and stakeholder education, the ReFresh Fish LIFE project represents an important step towards preserving the unique freshwater biodiversity of the Dalmatian karst and strengthening the nature conservation system within Natura 2000 areas.