Trends in fish passage studies are increasingly moving towards a holistic approach in considering the movements of a wide range of fish species and other aquatic fauna. In this context, it is important to consider not only salmonids and other game species, but also coarse species such as cyprinids. Moreover, knowledge of their behaviour when confronted with fishways is limited, particularly their upstream movements with regard to different hydraulic configurations. To address this deficit, research was conducted in an indoor full-scale pool-type fishway to assess the cyprinid Iberian barbel Barbus bocagei (Steindachner, 1864) response to the simultaneous presence of submerged orifices and surface notches with adjustable dimensions in association with two different flow regimes over the notches, i.e. plunging and streaming. Overall, orifices (76%) were the clear choice to negotiate the fishway. When the flow was in the plunging mode, a significantly higher proportion of fish selected the orifices to move upstream, but the proportions were equal during the streaming mode. The time taken to enter the fishway differed significantly according to the chosen discharge device and was lower for submerged orifices (52 s to 35 min.). The present study identified key factors in Iberian barbel upstream movements, which provide direct applications to future fishway designs for this species.

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Inland recreational fisheries, found in lakes, rivers, and other landlocked waters, are important to livelihoods, nutrition, leisure, and other societal ecosystem services worldwide. Although recreationally-caught fish are frequently harvested and consumed by fishers, their contribution to food and nutrition has not been adequately quantified due to lack of data, poor monitoring, and under-reporting, especially in developing countries. Beyond limited global harvest estimates, few have explored species-specific harvest patterns, although this variability has implications for fisheries management and food security. Given the continued growth of the recreational fishery sector, understanding inland recreational fish harvest and consumption rates represents a critical knowledge gap. Based on a comprehensive literature search and expert knowledge review, we quantified multiple aspects of global inland recreational fisheries for 81 countries spanning ~192 species. For each country, we assembled recreational fishing participation rate and estimated species-specific harvest and consumption rate. This dataset provides a foundation for future assessments, including understanding nutritional and economic contributions of inland recreational fisheries.

Key-words:angling, biomanipulation, eutrophication, fish management, groundbait Angling competitions are a popular leisure activity in reservoirs of Southern Portugal. These competitions can gather more than 100 anglers aiming to catch the maximum fish weight. Groundbaiting and catch-andrelease angling are two common practices for anglers in competition. In this study, the loads of nutrients from commercial groundbait powders used in angling competitions in the Maranhão reservoir and the possible balance out of those nutrients through a moderate biomanipulation of the fish biomass caught in competitions were analysed. In order to achieve this aim, chemical analyses to groundbait powders most purchased by Portuguese anglers and to fish species most captured in competitions were made. Mass balances on inputs and outputs of nutrients considering some biomanipulation scenarios were evaluated. Results demonstrated that an effective management on angling competitions implementing a moderate biomanipulation of fish in reservoirs could promote the control of fish fauna and eutrophication, balancing out nutrients from angling. RÉSUMÉBiomanipulation modérée pour le contrôle de l'eutrophisation dans les réservoirs à l'aide de poissons capturés dans les compétitions de pêche à la ligne Mots-clés :pêche à la ligne, biomanipulation, eutrophisation, gestion piscicole, amorce Les compétitions de pêche sont une activité de loisir populaire dans les réser-voirs du sud du Portugal. Ces compétitions peuvent rassembler plus de 100 pê-cheurs visant à attraper le poids maximum de poissons. L'amorçage et la pêche avec capture puis relâché sont deux pratiques communes pour les pêcheurs en compétition. Dans cette étude, les charges de nutriments à partir des poudres d'amorce commerciales utilisées dans ces compétitions de pêche dans le réser-voir Maranhão et le solde possible de ces nutriments lors d'une biomanipulation modérée de la biomasse de poissons capturés dans les compétitions ont été analysés. Afin d'atteindre cet objectif, les analyses chimiques des poudres d'amorçage les plus achetées par les pêcheurs portugais destinées à pêcher les espèces les plus capturées dans les compétitions ont été faites. Les bilans massiques sur les entrées et sorties de nutriments suivant certains scénarios de biomanipulation ont été évalués. Les résultats ont démontré qu'une gestion efficace des compéti-tions de pêche mettant en oeuvre une biomanipulation modérée de poisson dans les réservoirs pourrait favoriser le contrôle de la faune piscicole et l'eutrophisation en équilibrant les apports nutritifs de la pêche.