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Relevance of European small-scale fisheries trapped by data limitations

2026-01-22T14:05:39Z

Título : Relevance of European small-scale fisheries trapped by data limitations Autor : Demaneche, Sebastien; Bachiller, Eneko; Adamowicz, Maciej; Mugerza, Estanis; Vasconcelos, Rita P. and Kovsars, Maksims; Egekvist, Josefine and Armstrong, Mike; Bekaert, Karen; Canha, Angela; Carlshamre, Sofia; Couperus, Abraham S.; Elson, Jon and Fernandes, Ana Claudia; Gitarakos, Giorgos; Glemarec, Gildas and Orfanidis, Georgios A.; Kavadas, Stefanos; Krumme, Uwe and Nimmegeers, Sofie; Ottera, Hakon; Reis, Dalia; Rantanen, Perttu and Ringdahl, Katja; Stoetera, Sven; Thasitis, Ioannis and Tiainen, Joni; Volstad, Jon Helge; Barreto, Elisa; Gerritsen, Hans; Gazi, Karolina Molla; Prista, Nuno; Santos, Ana Ribeiro Resumen : Landings by species and their associated fishing effort are crucial for stock assessment and estimating fishing mortality. While large scale fisheries (LSF) have historically received more attention, interest in standardized data from small scale fisheries (SSF) has increased significantly over the last decade. This study characterizes SSF and ongoing fishing activity data collection across 17 European countries, from the Baltic Sea to the Mediterranean, using 2019 as a reference year. The analysis reveals that 88\% of commercial active fishing vessels are smaller than 15 m in total length and that such SSF (as considered in this study) accounts for over 83\% of the total days at sea and 12\% of the landed weight. However, fishing activity data collection for SSF is less comprehensive compared to LSF. Vessels larger than 10 m typically report their fishing activities in logbooks and sales notes, whereas for <10 m vessels, only 40\% provide additional data sources to sales notes, namely with declarative forms. This results in significant data gaps and inaccuracies, especially regarding fishing effort, gears used, or fishing locations. This is especially true for vessels smaller than 10 m, likely as a product of having comparatively less ongoing requirements put in place, whereas vessels between 10 and 15 m also present fewer data reporting obligations (e.g. large part of this fleet is not covered by geo-localization data especially for the [10-12) m vessels) compared to vessels above 15 m (LSF). In the end, SSF fisheries have not only less data available than LSF, but their provided information is also consequently subject to more inconsistencies and inaccuracies. Therefore, a concerted effort will be needed to improve SSF data quality through coordinated, harmonized, and comparable data collection efforts across countries. Recommendations include enhancing data reporting requirements for smaller vessels, implementing supplementary technological solutions, and conducting cross-checks of census information with sampling data. Additionally, the development and use of geolocation devices and apps are recommended to enhance the accuracy and completeness of SSF fishing activity data collection.

Socio-economic impacts and responses of the fishing industry and fishery managers to changes in small pelagic fish distribution and abundance

2026-01-22T14:01:28Z

Título : Socio-economic impacts and responses of the fishing industry and fishery managers to changes in small pelagic fish distribution and abundance Autor : Quezada-Escalona, Felipe J.; Tommasi, Desiree; Kaplan, Isaac C. and Hernvann, Pierre-Yves; Frawley, Timothy H.; Garcia, Dorleta and Ibaibarriaga, Leire; Sanchez-Marono, Sonia; de Moor, Carryn and Beckensteiner, Jennifer; Schueller, Amy M.; Feijo, Diana and Ciorciaro, Domenico; Kurota, Hiroyuki; Oliveros-Ramos, Ricardo and Wildermuth, Robert P.; Mroch, Ray; Wise, Laura; Baker, Matthew R.; Hansen, Cecilie; Hemed, Sidi Ahmed; Brochier, Timothee and Stohs, Stephen M.; Enciso-Enciso, Concepcion; Jacobsen, Nis S. Resumen : Small Pelagic Fish (SPF) exhibit large fluctuations in abundance and distribution in response to environmental variability. To maintain the resilience of fishing communities and develop effective and equitable climate adaptation strategies, improved understanding of how the fishing industry responds to spatio-temporal shifts within and across SPF populations is of critical importance. In this paper, we examine the responses of the fishing industry and resource managers to shifts in SPF availability worldwide and identify the resulting socioeconomic impacts. Leveraging SPF case studies from around the globe, we synthesize and compare the social-ecological linkages and feedbacks mediating how SPF fisheries respond to changes in marine ecosystem structure and function associated with (1) spatial shifts in species distribution and habitat availability, (2) `boom and bust' population dynamics, or (3) changes in fish size and quality. Our case studies illustrate multiple paths towards the resilience of small pelagic fisheries and the fishing industry dependent upon them while emphasizing the need for increased coordination and cooperation across sectors and scales as climate change progresses. Drawing from the lessons offered by historical responses, as environmental variability increases, efforts to increase the flexibility and dynamism of SPF harvest portfolios and management strategies, licensing regimes, and international catch and allocation agreements may be required to ensure resource sustainability and human well-being.

Sea turtles in the Atlantic and Indian Oceans, a step towards understanding bycatch and management of these species in tuna fisheries

2026-01-22T14:01:28Z

Título : Sea turtles in the Atlantic and Indian Oceans, a step towards understanding bycatch and management of these species in tuna fisheries Autor : Domingo, Andres; Baez, Jose Carlos; Miller, Philip; Parker, Denham; Ramos, Maria Lourdes; Sabarros, Philippe S.; Brown, Craig; Caminas, Juan Antonio; Coelho, Rui; Forselledo, Rodrigo and Fiedler, Fernando Niemeyer; Giffoni, Bruno; Macias, David and Hanke, Alex; Kerwath, Sven; Lauretta, V, Matthew; Poisson, Francois; Rueda, Lucia; Ruiz, Jon; Sales, Gilberto; Leite Jr, Nilamon de Oliveira; Salmeron, Francisca; Santiago, Josu and Taylor, Nathan; Jimenez, Sebastian Resumen : Knowledge of the spatiotemporal behavior and interactions with fishing gear of bycatch species is essential to improve conservation and fisheries management strategies. We analyze fine-scale data from onboard observers, covering 25 fishing fleets from 2002 through 2018, to assess temporal trends and spatial variation in sea turtle bycatch in longline and purse seine tuna fisheries in the Atlantic and Indian oceans. For the spatial analysis, we used the latest Regional Management Units for Sea Turtles (RMUs). In 117,381 fishing sets (51,431 in longlines and 65,950 in purse seine), a total of 26,050 sea turtles were incidentally caught. Bycatch was significantly higher in the Atlantic than in the Indian Ocean. Some bycatch trends were observed in longline fisheries but should be interpreted with caution due to low observer coverage and uneven sampling. In purse seine fisheries, where observer coverage was higher, an increasing trend over time was found in the bycatch rate of the three most caught species during the study period. This could be related to an increase in population size as suggested in other regional-scale analyses. We identified RMUs that should receive further attention from the perspective of increased capture rates over time. Our large-scale analysis confirms that surface longline sets capture significantly more turtles than deep longline sets. Purse seine sets on fish aggregating objects (FOB) captured more turtles than sets made on free schools of fish. These results are of relevance for the management and protection of these threatened species and the development of management measures.

Staying hooked: effective science engagement and communication in recreational fisheries

2026-01-22T14:22:42Z

Título : Staying hooked: effective science engagement and communication in recreational fisheries Autor : Pita, Pablo; Tracey, Sean; Arlinghaus, Robert; Bachiller, Eneko; Pinho-Duarte, Filipa; Ferter, Keno; Henriques, Filipe and Hook, Samantha; Hyder, Kieran; Irigoyen, Alejo; Jimenez, Maria P.; Laporta, Martin; Lejk, Adam M.; Leonard, Eoin; Olesen, Hans Jakob; Palmer, Freya; Pavicic, Miso; Pontes, Joao and Pujol-Baucells, Marta; Radford, Zachary; Rangel, Mafalda and Roche, William; Rudd, Hannah; Ryan, Diarmuid; Sbragaglia, Valerio; Selles, Jules; Silva, Catarina N. S.; Skov, Christian and Strehlow, Harry V.; Taylor, Stephen; Veiga, Pedro; Venerus, Leonardo A.; Venturelli, Paul; Vertegaal, David; Weltersbach, Marc Simon; Wiech, Martin; Winkler, Alexander Resumen : This abstract summarizes the results of two expert consultations conducted to gather insights into effective communication and engagement strategies in recreational fisheries. Effective science communication fosters knowledge, understanding, and trust in both science and management decisions. Public involvement and stakeholder engagement are essential for effective management. Simplifying complex research findings and using diverse communication tools enhance awareness and understanding. Strong communication strategies are necessary to implement sustainable recreational fisheries management frameworks. Funding for communication efforts is often insufficient but remains crucial for success. Participatory workshops and data-sharing arrangements enhance collaboration and involvement. Multi-stakeholder consortiums and tailored communication strategies strengthen stakeholder engagement and promote adaptive governance. Interdisciplinary outreach and strategic social media use play vital roles in raising environmental awareness.