Joining
This month, I was invited by a friend to take part as a volunteer in a conservation project focused on the restoration of native trout populations in selected rivers within the Struma, Mesta, and Maritsa river basins. Although my participation came at the very end, the project itself has been active for the past two years and concluded with this final field effort.
For me, it was a real privilege to be involved in a project built around long-term thinking, scientific knowledge, and respect for natural processes.
Project Objectives
The main goals of the project were clearly defined:
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Surveying selected watersheds in order to collect baseline biological and environmental data
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Studying the target species and documenting its key biological characteristics
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Restoring sustainable populations of native fish and their habitats using methods as close as possible to natural reproduction
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Raising awareness about biodiversity conservation
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Encouraging involvement and long-term commitment from key target groups
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Reaching a wider audience through interactive presentations
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Contributing to the broader framework of sustainable development and environmental protection
Field Work and Methodology
Together with colleagues from Fishing Club Balkanka and other volunteers, we worked on a small tributary of the Dragovishtitsa River. The project was led by the well-known Bulgarian ichthyologist Pencho Pandakov.
The first step involved electrofishing larger adult trout along a 300-meter section of the river. These fish were temporarily relocated downstream to protect the eggs that would later be placed in the same stretch of river.
Fertilised eggs were installed in specially prepared artificial nesting boxes and carefully placed in calm areas of pools and runs. The aim was to allow the eggs to hatch in conditions as close as possible to the natural environment, giving the young fish the best chance to adapt and survive.
The species targeted in this project was the native brown trout, Salmo macedonicus, a species whose genetic integrity is closely linked to specific local habitats.
Advantages of This Approach
The conservation activities carried out during the project offer several key benefits:
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Accumulation of valuable biological data on local populations of Salmo macedonicus
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Hatching in a fully natural environment, closely replicating the natural reproductive process
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Stocking through fertilised eggs and artificial nests rather than hatchery-raised fish
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Preservation of the local gene pool, shaped over generations and best adapted to the specific river conditions
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Active participation of a large number of volunteers, including members of local communities and nearby settlements
Conclusion
By the end of the day, I felt not only deeply satisfied on a personal level but also genuinely convinced of the effectiveness of this approach. Projects like this demonstrate that restoring fish populations through natural reproduction is a far better long-term solution than stocking rivers with grown hatchery fish—an approach that requires significant financial resources, infrastructure, and ongoing maintenance.
This experience reinforced my belief that working with nature, rather than trying to replace it, is the most sustainable way forward for the future of our rivers and their native fish populations.
Project Partners and Roles
The successful implementation of this project was made possible through the collaboration of several key partners, each contributing essential expertise and support.
Fishing Club Balkanka
Project Beneficiary and Author
Fishing Club Balkanka is the initiator and main beneficiary of the project, responsible for its overall concept, coordination, and on-the-ground implementation.
Lidl Bulgaria
Main Project Sponsor
Lidl Bulgaria provided the primary financial support, enabling the realisation of the project and its conservation activities.
National Museum of Natural History at BAS
Lead Scientific Partner
The National Museum of Natural History – Bulgarian Academy of Sciences (Sofia) was responsible for the scientific research, analysis, and verification of the project’s results, ensuring accuracy and scientific credibility.
Toshkov Chark Fish Farm
Aquaculture and Hatchery Support
Toshkov Chark Fish Farm provided experienced fishery specialists and supported activities related to the care of fertilised eggs, larval hatching, and the supply of stocking material in the form of fertilised eggs and larvae.