SEAS-ERA: An overarching effort to coordinate marine research policies across Europe
In: Marine policy, Volume 61, p. 33-38
ISSN: 0308-597X
21 results
Sort by:
In: Marine policy, Volume 61, p. 33-38
ISSN: 0308-597X
In: Marine policy: the international journal of ocean affairs, Volume 61, p. 33-38
ISSN: 0308-597X
10 páginas, 1 tabla, 10 figuras ; Variability and changes in the individual life-history parameters of fishes are frequently overlooked, and it is assumed that all individuals mature, spawn, grow, and die at the same rates over their lifespans. Here, the variability in the individualgrowth of the rudimentary hermaphrodite Diplodus annularis (Linnaeus, 1758) is described using a Bayesian approach. This approach enables the inference of individualgrowth curves, even in a species of a relatively short lifespan, and revealed a biphasic growth pattern for this species. Conventional von Bertalanffy growth failed to fit the individual back-calculated lengths-at-age data well. A generalization of this model is proposed for accommodating one change in the growth rate at some moment of the lifespan of this species. This novel five-parameter model (L∞, k0, k1, t0 and t1, i.e., size at infinite age, initial and final growth rate, age at size zero and age at the change of growth rate) represents the different allocation of energy to somatic growth or reproduction, prior to and post-sexual maturity. Moreover, between-sexgrowthdifferences are described; juvenile fish display similar growth rates in both sexes, but mature females have lower growth rates than males. The detailed description of the growth of the D. annularis shown here can provide adequate input for future implementation of population dynamics models that take into account individualvariability (e.g., IBMs, individual-based models). These models could facilitate the management of a species targeted by recreational fishery. ; This study was founded by the research project ROQUER (CTM2005-00283) funded by Ministerio de Educación y Ciencia of the Spanish Government. Finally, we would like to thank two anonymous reviewers for their useful comments. The first author was supported by a FPI fellowship (MICINN). ; Peer reviewed
BASE
An economically important, small-scale fishery operates during the winter months in Mallorca. Using a special surrounding net that is hauled over the sand and gravel bottoms of bays at depths reaching 30 m, it primarily targets Aphia minuta and Pseudaphya ferreri, but other goby species and juveniles of the Pagellus spp are also caught. Similar fisheries are operated on the Spanish coast and in Italy. This fishery is run with specific licenses, equipment controls, and closed seasons (based on species availability). In cooperation with local fishermen, the administration has in recent years established a daily quota for sustaining the sales prices 22of the species caught. A management plan was set up in 2013 in accordance with European Union rules to ensure the sustainability of the fishery. Its sustainable quotas have been set at 30 kg/day/boat for A. minuta and 50 kg/day/boat for P. ferreri, and the by-catch cannot exceed 10% of the total catch. Landings are permitted in 11 fixed ports and only 35 boats can fish with the regulated nets from December 15 to April 30. A co-management committee was created with the participation of the public administration, fishermen's associations, researchers, and certain non-governmental organizations. The co-management process was revised and fishermen's opinions were obtained in a successful enquiry that was answered by the majority of the operating fleet, and their views on the management rules will be considered in future regulations. The co-management of the small-scale boat seine fishery in the Balearic Islands is thus an ongoing collaborative and communicative process in a local community that continues to evolve over time. Although the fishermen are represented by their port guilds, communication efforts are necessary in the near future to ensure the success of the co-management process. ; This research was supported by the H2020 REA 634495-MINOUW Project ; Peer reviewed
BASE
Increasing sea temperature is a driver of change for many fish traits, particularly for fast-growing epipelagic species with short life spans. With warming, altered spawning phenology and faster growth may produce substantially larger body sizes of the new cohort, affecting fishery productivity. We present an individual-based model (IBM) that predicts the distribution of fish length at catch under observed and projected thermal scenarios, accounting for mortality, temperature-dependent spawning phenology, temperature- and photoperiod- dependent growth. This IBM was demonstrated with Coryphaena hippurus (common dolphinfish), a circumglobally-distributed and highly thermophilic species sustaining commercial and recreational fisheries where it is present. The model projected a 13.2% increase in the average length at catch under marine heatwave conditions compared to the current thermal regime (1995–2005 average). Projections under RCP scenarios 4.5 and 8.5 by the end of the century led to 5.1% and 12.8% increase in average length, respectively. Furthermore, these thermal scenarios affected spawning phenology differently, producing higher variance in body size under RCP 8.5 scenario with respect to marine heatwave conditions. This study highlights how the environmental effects of climate change can alter the distribution of species length at catch. ; The present paper is part of the CERES project (H2020, EU 678193). Part of the data was obtained from the FAO-Copemed and FAO-Copemed II projects (http://www.faocopemed.org/). This study has been conducted using E.U. Copernicus Marine Service Information. V. Moltó acknowledges a predoctoral grant funded by the Regional Government of the Balearic Islands and the European Social Fund, A. Ospina Álvarez was supported by H2020 Marie Skłodowska-Curie Actions (746361), and S. Pérez-Mayol salary was founded by PN Project DREAMER (CTM2015-66676-C2-1-R). We also acknowledge Andreina Fenech, Marie Louise Pace, and Roberta Mifsud from the Department of Fisheries and Aquaculture of Malta for the data collection and provision. ; Peer reviewed
BASE
The cuttlefish (Sepia officinalis) trammel net fishery is one of the most important small-scale fisheries in the Mediterranean Sea. Here we describe the main catch, by-catch and discard patterns found in this fishery on Mallorca Island by onboard surveys of 1005 netting walls from 23 fishing trips. The number of items captured, their size and their subsequent use, i.e. kept for sale or discarded, were recorded. Furthermore, the immediate survival of the unwanted items (i.e. vitality state when the gear came on board) and the medium-term survival of a subsample were assessed. The cuttlefish was the dominant species in the commercial fraction of the catch, particularly during the fishing season peak (March). However, S. officinalis catches quickly decreased further into the season, with other high-value fish, such as Scorpaena scrofa, increasing in the commercial fraction of the catch. As species composition is continuously changing, it is often difficult to determine the main target species of this fishery. This strategy possibly complicates management but maximizes fishing revenue, which was an average of €175 per trip. With respect to discards, up to 104 different species were caught but not commercialized. The most abundant were Holothuria sp. and Torpedo marmorata. Their immediate survival was 100% and 20%, respectively. In both cases, the medium-term survival and the vitality status were high after seven days in monitored captivity. Therefore, in these cases, their immediate release to the sea should be promoted, given that they are exempt from the EU landing obligation. Interviews with fishers revealed that the perceived quantity of discards was lower than the amount recorded by the present study. Currently, just a small percentage (1.5%) of these discards will be affected by the landing obligation enforced by the new European discards ban. ; La pesquería de sepia (Sepia officinalis) con trasmallo es una de las pesquerías artesanales más importantes en el Mediterráneo. En este estudio describimos los principales patrones representados por esta pesquería en la isla de Mallorca a través de la inspección a bordo de 1005 paneles de red durante 23 jornadas de pesca. Se registró la cantidad de individuos capturados, su tamaño y su uso posterior, es decir, si se guardaron para su venta o se descartaron. Además, se evaluó la supervivencia inmediata (es decir, el estado de vitalidad cuando la red llegó a bordo) de los individuos no deseados y la supervivencia a medio plazo de una submuestra. La sepia fue la especie dominante en la fracción comercial de la captura, principalmente durante el pico de la temporada de pesca (marzo). Sin embargo, las capturas de S. officinalis disminuyeron rápidamente a lo largo de la temporada, mientras que otros peces de alto valor, como Scorpaena scrofa, aumentaron sus capturas. Como la composición de las especies cambia continuamente, a menudo es difícil discriminar las principales especies objetivo de esta pesquería. Esta estrategia posiblemente complica la gestión, pero maximiza los ingresos de los pescadores, que en promedio fueron de 175 Euros por jornada de pesca. En lo que respecta a los descartes, se capturaron 104 especies diferentes. Las más abundantes fueron Holothuria sp. y Torpedo marmorata. Su supervivencia inmediata fue del 100% y 20%, respectivamente. En ambos casos, la supervivencia a medio plazo y el estado de vitalidad fueron altos después de 7 días en cautividad. Por lo tanto, en estos casos, se debía promover la liberación inmediata al mar, dado que estas especies están exentas de la obligación de desembarque de la UE. Las entrevistas a los pescadores revelaron que la cantidad percibida de descartes fue menor que las cantidades registradas en el presente estudio. Realmente, solo un pequeño porcentaje (1.5%) de estos descartes se verá afectado por la obligación de desembarque impuesta por la nueva prohibición de descartes en Europa.
BASE
The cuttlefish (Sepia officinalis) trammel net fishery is one of the most important small-scale fisheries in the Mediterranean Sea. Here we describe the main catch, by-catch and discard patterns found in this fishery on Mallorca Island by onboard surveys of 1005 netting walls from 23 fishing trips. The number of items captured, their size and their subsequent use, i.e. kept for sale or discarded, were recorded. Furthermore, the immediate survival of the unwanted items (i.e. vitality state when the gear came on board) and the medium-term survival of a subsample were assessed. The cuttlefish was the dominant species in the commercial fraction of the catch, particularly during the fishing season peak (March). However, S. officinalis catches quickly decreased further into the season, with other high-value fish, such as Scorpaena scrofa, increasing in the commercial fraction of the catch. As species composition is continuously changing, it is often difficult to determine the main target species of this fishery. This strategy possibly complicates management but maximizes fishing revenue, which was an average of €175 per trip. With respect to discards, up to 104 different species were caught but not commercialized. The most abundant were Holothuria sp. and Torpedo marmorata. Their immediate survival was 100% and 20%, respectively. In both cases, the medium-term survival and the vitality status were high after seven days in monitored captivity. Therefore, in these cases, their immediate release to the sea should be promoted, given that they are exempt from the EU landing obligation. Interviews with fishers revealed that the perceived quantity of discards was lower than the amount recorded by the present study. Currently, just a small percentage (1.5%) of these discards will be affected by the landing obligation enforced by the new European discards ban. ; This study is a result of the Associated Unit LIMIA-IMEDEA. It received funding from the European Commission's Horizon 2020 Research and Innovation Programme under Grant Agreement No. 634495 for the Science, Technology, and Society Initiative to Minimize Unwanted Catches in European Fisheries (MINOUW). G. Catanese was supported by a postdoctoral research contract from INIA-CCAA. H. Hinz was supported by a Ramón y Cajal Fellowship (grant funded by the Ministerio de Economía y Competitividad de España and the Conselleria d'Educació, Cultura i Universitats de la Comunidad Autónoma de las Islas Baleares). ; Peer reviewed
BASE
In Europe, research to improve age estimation methods is often limited to small-scale studies and thus it has been difficult to integrate innovations into routine protocols. There has even been a lack of pilot scale studies and implementation of control mechanisms in the age reading process. This was recognised and addressed by European Fish Ageing Network (EFAN; 1997–2000). EFAN was established as an active, independent and informal network for exchange of ideas and experience for improving age estimation. For the first time, age reading problems were addressed on a common platform across Europe. EFAN improved awareness and sensitivity towards the quality of age reading, however, this did not always deliver changes in the routine age reading processes. The present project, Towards Accreditation and Certification of Age Determination of Aquatic Resources (TACADAR); 2002–2006 aims to submit a quality assurance manual including an evaluation of the legal aspects and implications to the European Union (EU). Through the network of excellence, TACADAR will strengthen the competitive position of European institutions involved in fish ageing through institutional synergy and international co-operation.
BASE
The European Parliament is concerned about the lack of information on the relevance of nine million Europeans engaged in marine recreational fishing (MRF), committing Member States to encourage environmental and socioeconomic sustainability of the sector. The objective of this paper is to provide recommendations to guide research actions and management policies, based on the case of Spain, a key country because its complex administrative regimen and the intensive use of its coasts, including 900,000 recreational fishers. A review of the state of the knowledge was performed to identify research gaps, while governance challenges were identified in an International Symposium on MRF. In the last two decades research on MRF was remarkable (139 publications). However, public investment in research (€2.44 million in the same period) should be improved to cover knowledge gaps on socioeconomic relevance, on impacts on vulnerable species and on implications of global warming. The license system should be standardized to allow estimation of effort, catch and expenditure. Social networks, mobile applications, fisher ecological knowledge, and citizen science programs could help to develop cost-effective research and management. Science-based, adaptive policies should improve the allocation of resources between MRF and other stakeholders, introducing co-management to reduce conflicts ; This work received funds from the Xunta de Galicia under the modality of Grupos de Referencia Competitiva (Grant ED431C2019/11), RECREGES I and II projects under Grants ED481B2014/034-0 and ED481B2018/017, and SICORE project, funded by the Fundación Biodiversidad, Ministerio para la Transición Ecológica, Gobierno de España, Pleamar program, which is cofounded by the European Maritime and Fisheries Fund. SV acknowledges the financial the European COST Action "Ocean Governance for Sustainability – challenges, options and the role of science," the ICES Science Fund Project "Social Transformations of Marine Social-Ecological Systems," and the CYTED ...
BASE
Este artículo contiene 14 páginas, 4 figuras. ; The European Parliament is concerned about the lack of information on the relevance of nine million Europeans engaged in marine recreational fishing (MRF), committing Member States to encourage environmental and socioeconomic sustainability of the sector. The objective of this paper is to provide recommendations to guide research actions and management policies, based on the case of Spain, a key country because its complex administrative regimen and the intensive use of its coasts, including 900,000 recreational fishers. A review of the state of the knowledge was performed to identify research gaps, while governance challenges were identified in an International Symposium on MRF. In the last two decades research on MRF was remarkable (139 publications). However, public investment in research (€2.44 million in the same period) should be improved to cover knowledge gaps on socioeconomic relevance, on impacts on vulnerable species and on implications of global warming. The license system should be standardized to allow estimation of effort, catch and expenditure. Social networks, mobile applications, fisher ecological knowledge, and citizen science programs could help to develop cost-effective research and management. Sciencebased, adaptive policies should improve the allocation of resources between MRF and other stakeholders, introducing co-management to reduce conflicts. ; This work received funds from the Xunta de Galicia under the modality of Grupos de Referencia Competitiva (Grant ED431C2019/11), RECREGES I and II projects under Grants ED481B2014/034-0 and ED481B2018/017, and SICORE project, funded by the Fundación Biodiversidad, Ministerio para la Transición Ecológica, Gobierno de España, Pleamar program, which is cofounded by the European Maritime and Fisheries Fund. SV acknowledges the financial the European COST Action "Ocean Governance for Sustainability – challenges, options and the role of science," the ICES Science Fund Project "Social Transformations of Marine Social-Ecological Systems," and the CYTED program for the ECOMAR Network. JP-F received funds from the project "Governance challenges for sustainable small-scale fisheries: creating synergies with marine conservation and tourism" (GOBAMP II, CSO2013-45773-R), financed by Ministry of Economy and Competitiveness of Spain. JA was supported by a JDC postdoctoral research grant funded by the Spanish Ministry of Economy, Industry and Competitiveness (ref. IJCI-2016-27681) and a Ramon y Cajal Grant funded by the Spanish Ministry of Science, Innovation and Universities (grant no. RYC2018-024488-I). ; Peer reviewed
BASE
In: Marine policy, Volume 98, p. 176-186
ISSN: 0308-597X
In: Marine policy: the international journal of ocean affairs
ISSN: 0308-597X
In: Hyder , K , Weltersbach , M S , Armstrong , M , Ferter , K , Townhill , B , Ahvonen , A , Arlinghaus , R , Baikov , A , Bellanger , M , Birzaks , J , Borch , T , Cambie , G , deGraaf , M , Diogo , H M C , Dziemian , Ł , Gordoa , A , Grzebielec , R , Hartill , B , Kagervall , A , Kapiris , K , Karlsson , M , Kleiven , A R , Lejk , A M , Levrel , H , Lovell , S , Lyle , J , Moilanen , P , Monkman , G , Morales‐Nin , B , Mugerza , E , Martinez , R , O'Reilly , P , Olesen , H J , Papadopoulos , A , Pita , P , Radford , Z , Radtke , K , Roche , W , Rocklin , D , Ruiz , J , Scougal , C , Silvestri , R , Skov , C , Steinback , S , Sundelöf , A , Svagzdys , A , Turnbull , D , van derHammen , T , vanVoorhees , D , vanWinsen , F , Verleye , T , Veiga , P , Vølstad , JH , Zarauz , L , Zolubas , T & Strehlow , H V 2018 , ' Recreational sea fishing in Europe in a global context—Participation rates, fishing effort, expenditure, and implications for monitoring and assessment ' , Fish and Fisheries , vol. 19 , no. 2 , pp. 225-243 . https://doi.org/10.1111/faf.12251
Marine recreational fishing (MRF) is a high‐participation activity with large economic value and social benefits globally, and it impacts on some fish stocks. Although reporting MRF catches is a European Union legislative requirement, estimates are only available for some countries. Here, data on numbers of fishers, participation rates, days fished, expenditures, and catches of two widely targeted species were synthesized to provide European estimates of MRF and placed in the global context. Uncertainty assessment was not possible due to incomplete knowledge of error distributions; instead, a semi‐quantitative bias assessment was made. There were an estimated 8.7 million European recreational sea fishers corresponding to a participation rate of 1.6%. An estimated 77.6 million days were fished, and expenditure was €5.9 billion annually. There were higher participation, numbers of fishers, days fished and expenditure in the Atlantic than the Mediterranean, but the Mediterranean estimates were generally less robust. Comparisons with other regions showed that European MRF participation rates and expenditure were in the mid‐range, with higher participation in Oceania and the United States, higher expenditure in the United States, and lower participation and expenditure in South America and Africa. For both northern European sea bass (Dicentrarchus labrax, Moronidae) and western Baltic cod (Gadus morhua, Gadidae) stocks, MRF represented 27% of the total removals. This study highlights the importance of MRF and the need for bespoke, regular and statistically sound data collection to underpin European fisheries management. Solutions are proposed for future MRF data collection in Europe and other regions to support sustainable fisheries management.
BASE
International audience ; Marine recreational fishing (MRF) is a high‐participation activity with large economic value and social benefits globally, and it impacts on some fish stocks. Although reporting MRF catches is a European Union legislative requirement, estimates are only available for some countries. Here, data on numbers of fishers, participation rates, days fished, expenditures, and catches of two widely targeted species were synthesized to provide European estimates of MRF and placed in the global context. Uncertainty assessment was not possible due to incomplete knowledge of error distributions; instead, a semi‐quantitative bias assessment was made. There were an estimated 8.7 million European recreational sea fishers corresponding to a participation rate of 1.6%. An estimated 77.6 million days were fished, and expenditure was €5.9 billion annually. There were higher participation, numbers of fishers, days fished and expenditure in the Atlantic than the Mediterranean, but the Mediterranean estimates were generally less robust. Comparisons with other regions showed that European MRF participation rates and expenditure were in the mid‐range, with higher participation in Oceania and the United States, higher expenditure in the United States, and lower participation and expenditure in South America and Africa. For both northern European sea bass (Dicentrarchus labrax, Moronidae) and western Baltic cod (Gadus morhua, Gadidae) stocks, MRF represented 27% of the total removals. This study highlights the importance of MRF and the need for bespoke, regular and statistically sound data collection to underpin European fisheries management. Solutions are proposed for future MRF data collection in Europe and other regions to support sustainable fisheries management.
BASE
International audience ; Marine recreational fishing (MRF) is a high‐participation activity with large economic value and social benefits globally, and it impacts on some fish stocks. Although reporting MRF catches is a European Union legislative requirement, estimates are only available for some countries. Here, data on numbers of fishers, participation rates, days fished, expenditures, and catches of two widely targeted species were synthesized to provide European estimates of MRF and placed in the global context. Uncertainty assessment was not possible due to incomplete knowledge of error distributions; instead, a semi‐quantitative bias assessment was made. There were an estimated 8.7 million European recreational sea fishers corresponding to a participation rate of 1.6%. An estimated 77.6 million days were fished, and expenditure was €5.9 billion annually. There were higher participation, numbers of fishers, days fished and expenditure in the Atlantic than the Mediterranean, but the Mediterranean estimates were generally less robust. Comparisons with other regions showed that European MRF participation rates and expenditure were in the mid‐range, with higher participation in Oceania and the United States, higher expenditure in the United States, and lower participation and expenditure in South America and Africa. For both northern European sea bass (Dicentrarchus labrax, Moronidae) and western Baltic cod (Gadus morhua, Gadidae) stocks, MRF represented 27% of the total removals. This study highlights the importance of MRF and the need for bespoke, regular and statistically sound data collection to underpin European fisheries management. Solutions are proposed for future MRF data collection in Europe and other regions to support sustainable fisheries management.
BASE