Salmonid Fishery Management and Its Interactions with Freshwater Ecosystem Functions, Structures, and Services

Dear Colleagues,

Salmonid species are the backbone of freshwater sport and commercial inland fisheries in many industrialised countries. These fisheries attract considerable social, cultural, and economic interests. Salmonid fishery management significantly impacts freshwater ecosystem structures, functions, and services. The challenges posed by the management of salmonid stocks include the adverse genetic effects on wild populations caused by stock enhancement and hatcheries, frequent bioinvasions of non-native species, unfavourable evolutionary responses to exploitation, and the local ecological effects of salmonid farms. Salmonids are extremely adaptable and ecologically variable species. They are ecologically connected to terrestrial and aquatic organisms, both as predators and prey. Their life cycle is highly variable at both the species and population levels, including anadromous reproductive behaviours, unique local adaptations, rapid plastic responses, and high evolutionary adaptability. In an era of rapid human-induced changes, salmonid fishery management can both have significant effects on freshwater ecosystems and communities and can be affected by human-induced ecosystem changes, such as pollution, habitat destruction and degradation, and climatic changes.

Potential authors are encouraged to contribute research articles, reviews, or perspectives that explore diverse aspects of the effects of salmonid fishery management on freshwater life. Possible contributions may include (but are not limited to) the following:

• Alterations in freshwater aquatic and terrestrial ecosystems and communities caused by salmonid fishery management. For instance, an increase in the abundance of piscivorous birds was recently observed in the proximity of marine salmonid hatcheries: are similar phenomena being observed in freshwater systems?
• Impacts on native fauna, flora, and habitat of non-native invasive salmonid species introduced by fishery management.
• Genetic introgressive hybridization caused by non-native salmonid species introduced in hatchery for stock enhancement.
• Impacts of both human constructions (e.g., dams, hydroelectric plants) and mitigation actions (e.g., further impacts caused by the introduction of non-native species as a form of stock enhancement) on salmonid biology.
• Impacts of pollution (e.g., microplastics, water pollution, thermal pollution, acoustic pollution) on salmonid biology.
• Impacts of climate changes on salmonid biology.

Dr. Gianluca Polgar
Dr. Pietro Volta
Guest Editors

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• Salmonidae
• hatchery management
• freshwater sport fishing
• inland fisheries
• salmonid biodiversity
• salmonid conservation