Dr. Konrad Turkowski

The profitability of rearing larval asp, Aspius aspius (L.), ide, Leuciscus idus (L.), and dace, Leuciscus leuciscus (L.), was assessed in a system of 12 aquaria with a combined volume of 600 dm3. Two feeding variants were used: a) natural feed exclusively; b) natural feed plus formulated feed after seven days of rearing. All rearing variants were profitable and posed relatively low financial risks. The variant in which only natural feed was used was the most profitable. The savings incurred by the addition of formulated feed did not offset the profit lost from lower larval stock survival rates. In light of profitability, the most important aspect of larval rearing was the price of the stocking material, which was 250% higher for asp than for ide or dace. In both feeding variants, asp rearing was the most profitable and the values of the indices used to describe profitability were the best.

1 September 2010 in Polish Journal of Natural Sciences

Journal Article

A Comparison of the Economic Effectiveness of Various Spawning Agents for Stimulating the Reproduction of the Cultured and Wild Forms of the Common Barbel Barbus Barbus (L.)

DŻ

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5 March 2021 in Sustainability

Journal Article

Fish Farmers’ Perception of Ecosystem Services and Diversification of Carp Pond Aquaculture: A Case Study from Warmia and Mazury, Poland

Konrad Turkowski

Ecosystem services, multifunctionality and diversity play a particular role in the management of carp pond aquaculture. These three concepts have been increasingly considered in sustainable aquaculture science and policymaking. However, the understanding and acceptance of sustainable aquaculture by fish farmers is a prerequisite for the successful implementation of such a targeted policy. Research on a fish farmers’ perception of ecosystem services, multifunctionality and diversification of carp aquaculture was carried out in Warmia and Mazury, Poland. The results of interviews showed that farmers have a deep understanding of the ecosystem services and multifunctionality of carp ponds. Production services were indicated as the most important, but the role of ponds in the preservation of biodiversity was another highly valued service. The greatest diversity of the activities, and conviction of their significant impact on the profitability of carp pond farming, was observed on farms with ponds of 1 to 50 ha. In the case of larger farms, the assessment of such impact was more moderate. All surveyed farms provided educational services regarding the ecological values of the ponds. All pond users, regardless of their size, highly rated the need for financial support for the conservation and development of biodiversity.

About Me

I am an employee of the Institute of Management and Quality Sciences at the University of Warmia and Mazury in Olsztyn (Poland). I am associate professor of economics and doctor of natural sciences. As part of a British Council scholarship, I participated in training at the University of Hull (England) in 1991 and 1995. I am a member of the Polish Association of Environmental Economists and Water Management (since 2004). I have been certified as a property appraiser since 1994. My research focuses on the issues of management and effectiveness of water and fisheries management, the determinants of sustainable development in fishing, tourism and recreation, real estate appraisal as well as valuation and appraisal of natural resources, with particular emphasis on water resources. I am the author and co-author of several dozen publications, including scientific papers, books and chapters in books (ORCID ID: 0000-0002-7425-579X; Google Scholar: SZSmv20AAAAJ). I published, among others, in Archiv für Hydrobiologie, Archives of Polish Fisheries, Acta Ichthyologica et Piscatoria, Polish Journal of Natural Science. I was reviews in International Aquaculture, Archives of Polish Fisheries, Fisheries Management and Ecology, Reviews in Aquaculture, Lakes & Reservoirs: Science, Policy and Management for Sustainable Use, Ecohydrology & Hydrobiology, Polish Archives of Hydrobiology.

Dr. Konrad Turkowski

Dr. Konrad Turkowski

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