(Dept. 4) Fish Biology, Fisheries and Aquaculture
In the Department of Fish Biology, Fisheries and Aquaculture we seek to understand the ecological and evolutionary processes that structure populations and communities of freshwater fishes and affect their functions and ecological services. An important part of our work focuses on interactions between natural and anthropogenic factors and their effects on evolution, reproduction, stress, development, growth, behaviour, productivity and recreational quality of fish. Our goal is to create the scientific foundations for the conservation of wild fish populations and for sustainable fisheries management and aquaculture. The methodological approaches include hypothesis-driven laboratory research, mesocosm experimentation, lake manipulation, comparative field studies and theoretical modelling.
The paper offers an introduction to novel methods of high-resolution positional telemetry that provide guidance to practioners. It presents a summary of all techniques for fine-scale positioning of the movements of fish.
Weirs and other transverse structures in rivers not only impede migratory fish on their way to spawning grounds, but even if they are able to pass, many of them die in the turbines of hydroelectric power plants. The authors present a recommendation on how to facilitate effective passage and even promote sturgeon with bypass channels at dams that can serve as additional habitat.
Global responses to the COVID-19 pandemic by recreational anglers: considerations for developing more resilient and sustainable fisheries
The study investigated the impact of COVID on recreational fisheries across the globe.The authors found COVID to increase local recreational fisheries participation but to reduce touristic recreational fisheries where travel restrictions were in place.
The authors detected great concentrations of source hotspots on the northern regions associated to lentic ecosystems, main European rivers acting as ecological corridors for all freshwaters, and a mixed distribution of connectivity hotspots in southern and Mediterranean ecoregions.
Socio-economic or environmental benefits from pondscapes? Deriving stakeholder preferences using analytic hierarchy process and compositional data analysis
The authors studied the needs and knowledge of stakeholders who own, work, research, or benefit from pondscapes in 8 countries. Using the analytic hierarchy process, this study shows that in general stakeholders in the European and Turkish demo-sites prefer environmental benefits, while stakeholders in the Uruguayan demo-sites rank the economic benefits higher.