| 1. |
- Hornborg, Sara, et al.
(författare)
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Frisk med fisk utan risk? : Betydelsen av svensk konsumtion av sjömat för hälsa och miljö
- 2019
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- Seafood is a diverse food commodity, comprising of over 2 500 species from capture fisheries and over 600 species from farming, with vast differences between production methods. Dietary advice often includes recommendations to increase consumption of seafood, based on health benefits and that seafood may be produced with less environmental impacts and resources use compared to many other animal-based foods. However, at the same time, there are frequent media alarms related to potential health risks (some species have diet restrictions) and destructive production practices from both fisheries and aquaculture. As a result, there is often confusion on which seafood to eat or not to eat.The aim of this report is primarily to collate available information on health risks and benefits of Swedish seafood consumption, and to combine this with environmental aspects (focus on carbon footprint).Around 40 seafood products consumed in Sweden were included in the analysis. Potential health risks could only be included qualitatively, since the collected data is risk-based and thus not all products are sampled. It was found that the nutritional content and carbon footprint vastly differ between species. There were also several data gaps identified, such as the need for more detailed data on performance from different production systems. The combined assessment of nutritional value and carbon footprint categorised some species as win-win in terms of nutritional content and environmental pressures (such as small pelagic fish), while others could be more categorised as having less nutritional value and with high environmental costs (such as Northern prawn) respectively.The report provides decision support for further data collection needed to enable combined assessment of nutritional risks, benefits and environmental sustainability of seafood products. Results may be used to discuss suitable level of details of dietary advice.
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| 2. |
- Troell, Max, et al.
(författare)
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Aquaculture
- 2017
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Ingår i: Reference Module in Life Sciences.
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Forskningsöversikt (refereegranskat)abstract
- Biophysical impacts of aquaculture, with consequences for biodiversity, vary with species and culture systems and include issues such as: nutrient enrichment/removal, chemicals, land use, species introductions, genetic flow to wild populations, disturbance of balance or introduction of pathogen/parasites, consumption of capture fishery resources, energy, and greenhouse gas emissions. Guiding principles, labeling schemes and various tools are needed to analyze performance and conformance. Ecological footprints and life-cycle analysis aim to capture biophysical performance, including up- and downstream effects of policy decisions. Aquaculture provides a range of services but also makes demands and impacts on ecosystem functions, services, and thus biodiversity.
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| 3. |
- Troell, Max, et al.
(författare)
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Aquaculture and biodiversity
- 2013. - 2nd edition
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Ingår i: Encyclopedia of biodiversity. - : Academic Press. ; , s. 189-201
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Bokkapitel (refereegranskat)
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| 4. |
- Björkvik, Emma, 1987-, et al.
(författare)
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Informing obligations : Best practice information for catch‐and‐release in Swedish local recreational fisheries management
- 2023
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Ingår i: Fisheries Management and Ecology. - : John Wiley & Sons. - 0969-997X .- 1365-2400. ; 30:3, s. 310-322
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Tidskriftsartikel (refereegranskat)abstract
- Catch-and-release (C&R) is a popular management tool that can support sustainable development of recreational fisheries, if anglers adopt scientifically informed “best practices.” However, although the role of best practices is widely established in the academic literature, this knowledge is not always disseminated to anglers. In this paper, we investigated if and to what extent local management organizations provided best practice information to anglers. Based on a sample of 331 Swedish organizations, we reviewed the websites through which these organizations sold fishing licenses. Our review demonstrated widespread use of C&R as a management tool yet a general lack of best practice information. Among the small fraction of organizations that mentioned best practices, most mentioned only a single practice, with little consistency among practices that received attention. In addition, best practice information was particularly lacking for pike (Esox Lucius) and perch (Perca fluviatilis), which are by far the most landed and released species nationally. We discovered major knowledge deficiencies that provide insights about where and how to focus efforts for improving best practice information, in the context of local recreational fisheries management.
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| 5. |
- Blicharska, Malgorzata, 1979-, et al.
(författare)
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Biodiversity’s contributions to sustainable development
- 2019
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Ingår i: Nature Sustainability. - : Nature Publishing Group. - 2398-9629. ; 2, s. 1083-1093
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Forskningsöversikt (refereegranskat)abstract
- International concern to develop sustainably challenges us to act upon the inherent links between our economy, society and environment, and is leading to increasing acknowledgement of biodiversity's importance. This Review discusses the breadth of ways in which biodiversity can support sustainable development. It uses the Sustainable Development Goals (SDGs) as a basis for exploring scientific evidence of the benefits delivered by biodiversity. It focuses on papers that provide examples of how biodiversity components (that is, ecosystems, species and genes) directly deliver benefits that may contribute to the achievement of individual SDGs. It also considers how biodiversity's direct contributions to fulfilling some SDGs may indirectly support the achievement of other SDGs to which biodiversity does not contribute directly. How the attributes (for example, diversity, abundance or composition) of biodiversity components influence the benefits delivered is also presented, where described by the papers reviewed. While acknowledging potential negative impacts and trade-offs between different benefits, the study concludes that biodiversity may contribute to fulfilment of all SDGs.
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| 6. |
- Blicharska, Malgorzata, 1979-, et al.
(författare)
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Recreational fishing for sea trout – Resource for whom and to what value?
- 2018
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Ingår i: Fisheries Research. - : Elsevier BV. - 0165-7836 .- 1872-6763. ; 204, s. 380-389
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Tidskriftsartikel (refereegranskat)abstract
- Recreational fishing is an important activity that delivers substantial social and economic values. Proper management of recreational fisheries relies on information about resource use and associated values by different fishers, but such information is rare, particularly for open access fisheries. In this study a survey of 471 fishers on the Swedish island of Gotland in the Baltic Sea, assessed catches, proportion of catch-and-release (C&R), and economic value (expenditures and willingness to pay, WTP) of sea trout fishing in 2015-2016. Data was analysed in relation to gear used (fly and spin angling, nets and mixed fishery) and fisher connection to fishing site (permanent and temporary residents, Swedish and international tourists). There were marginal differences in daily catch rates, but significant differences in effort and annual catches between different fishers, with resident fishers having the highest catches. Anglers had 86% C&R rates, and fly fishers (> 95%) differed significantly from other anglers. Anglers, particularly fly fishers and fishing tourists, had much higher expenditures per year, fish caught and fish kept compared to net fishers. WTP before refraining from fishing, for doubling of fish supply and for potential fishing license was also highest among anglers. Our findings are discussed in terms of distinguishing characteristics for different types of recreational fishers. Fishing efforts, economic values and the need for further studies are also outlined in the context of fisheries and tourism management.
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| 7. |
- Blicharska, Malgorzata, 1979-, et al.
(författare)
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What factors enable or hinder engagement of civil society in ecosystem management? : The case of "pike factories' and wetland restoration in Sweden
- 2018
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Ingår i: Journal of Environmental Planning and Management. - : Informa UK Limited. - 0964-0568 .- 1360-0559. ; 61:5-6, s. 950-969
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Tidskriftsartikel (refereegranskat)abstract
- Engaging civil society in conservation activities is an important complementary strategy to counteract ongoing biodiversity decline and loss of ecosystem services. Since 2011, the Swedish Anglers Association (SAA) has cooperated with landowners to restore wetlands nationwide. We investigated factors that enabled or hindered civil society-led wetland restoration in Sweden through interviews and surveys with the SAA's project leaders and landowners. Principal internal and external factors contributing to the project's implementation included: flexibility and adaptive management of its leadership; support from authorities and policies; the good reputation of the SAA team; and landowners' willingness to cooperate. The latter was linked to their feelings of environmental responsibility, the low investment required by them, and expectations of some benefits. We discuss the need to enable adaptive management in environmental management projects, adjust existing policies to their needs, and re-think funding strategies to consider the long-term nature of such projects.
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| 8. |
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| 9. |
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| 10. |
- Blyth, Samuel, 1988-
(författare)
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Casting for Knowledge and Landing Understanding : Exploring the management of Swedish recreational fisheries as social-ecological systems
- 2024
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- The successful management of recreational fisheries must balance ecological, and social goals; select from and implement a range of management tools; operate under often complex governance structures; and contend with diverse human stakeholders’ expectations, desires, and actual behaviour in response to management activities. This complexity also means that there are many knowledge and research gaps regarding the information needed to meet the requirements of specific fisheries. This thesis explores Swedish recreational fisheries as social-ecological systems to help close these gaps, and improve their future management.The sea trout (Salmo trutta) fishery around the island of Gotland provides context for investigating the human and ecological dimensions of catch-and-release (C&R), and stock level connections between angler expectations, catches, and spawning returns. This case study first identifies key motivations to retain or release sea trout of legal size, and factors anglers think are important for successful C&R. Then determines which angler-related, fish-related, or environmental factors impact stress levels and injuries for sea trout. Further, it identifies the potential for small changes in anglers harvest preferences to significantly impact mortality rates for an important segment of the spawning population. Taken together these outcomes identify knowledge and behavioural gaps that influence the successful application of C&R in this fishery, and that could affect the achievement of fishery management goals.Several opportunities to improve the transfer of information between stakeholder groups in Swedish recreational fisheries are illuminated through an assessment of how best practices for C&R are communicated to anglers, and an evaluation of potential biases generated when collecting data through angler surveys. Communication from freshwater fishery managers to fishing license buyers is deficient in the quality and quantity of information on best practices for C&R. In addition, this is notably poorer for certain fisheries and target species that have very high rates of C&R. In the opposite direction, the collection of information from anglers is also challenging, as common sampling techniques and the grouping of survey responses in recreational fisheries can introduce significant biases that impact how data can be interpreted. These include psychological dimensions of fishing experiences that connect angler motivations and behaviours to fishery management structures.This thesis contributes to the knowledge and discussion about sustainably managing recreational fisheries, but the methods to apply this information to existing governance structures and induce positive behavioural change in diverse populations of anglers require further development.
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