Suchergebnisse

This book deals with the potentials of social-ecological systems analysis for resolving sustainability problems. Contributors relate inter- and transdisciplinary perspectives to systemic dynamics, human behavior and the different dimensions and scales. With a problem-focused, sustainability-oriented approach to the analysis of human-nature relations, this text will be a useful resource for scholars of human and social ecology, geography, sociology, development studies, social anthropology and natural resources management.

[Hintergrund] Der aktuelle globale Bericht des Weltbiodiversitätsrats (Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services; IPBES) (IPBES 2019) ist einer der hoch-rangigen internationalen Berichte zu wichtigen Erd- und Umweltfragen, die im UN-Kontext erstellt werden und einen konkreten Bezug zu den UN-Nachhaltigkeitszielen (Sustainable Development Goals, SDGs) haben. Er zeigt, wie stark der Rückgang von Ökosystemleistungen die Lebensgrundlage der Menschen auf der Erde gefährdet: So sind bis zu eine Million Tier- und Pflanzenarten vom Aussterben bedroht. Die IPBES Autor*innen lassen keinen Zweifel daran, dass es einer tiefgreifenden Veränderung unserer Lebens- und Wirtschaftsweise bedarf, um diesem Massensterben Einhalt zu gebieten. Nur durch eine nachhaltige Nutzung ökologischer Ressourcen können wir den Hauptursachen des Biodiversitätsverlusts, der Reduktion von Ökosystemleistungen und der Zerstörung von Lebensräumen, entgegenwirken (IPBES 2019). Die Schlussfolgerungen des globalen IPBES Berichts und anderer IPBES Berichte sind von großer politischer Relevanz. Dadurch, dass die Berichte von 131 nationalen Regierungen mit-getragen werden und die Staaten entlang des gesamten Erstellungsprozesses an den Berichten beteiligt sind (z.B. bei der Auswahl von Themen und Expert*innen, der Einbindung von Stakeholder*innen oder der Zusammenfassung für Entscheidungsträger*innen (IPBES 2012)), erhalten ihre Ergebnisse politisches Gewicht. Dabei ist das nationale Engagement für globale Umweltpolitik und Forschung im Umweltbereich nicht auf IPBES beschränkt. Zwischenstaatliche Organisationen wie der IPCC (Intergovermental Panel on Climate Change), ICES (International Council for the Exploration of the Seas) oder IPBES spielen eine immer größer werdende Rolle in der globalen Umweltpolitik; sie alle besitzen eine zunehmende Deutungs-hoheit sowie politische und gesellschaftliche Autorität (Beck et al. 2014). Die Verleihung des Friedensnobelpreises an den IPCC im Jahr 2007 ist dafür ein deutliches Zeichen (Beck et al. 2014). Während die Berichte dieser Organisationen in globalen Politikprozessen eine wichtige Rolle spielen (z.B. für die Konvention zur Biologischen Vielfalt - CBD), fließen ihre Ergebnisse trotz der Beteiligung nationaler Politikakteur*innen selten in nationale politische Diskurse ein und finden in vielen Bereichen, zum Beispiel der Wirtschaftspolitik, bislang wenig Beachtung. Ein möglicher Grund dafür kann eine unzureichende wissenschaftliche Kontextualisierung auf Basis des nationalen politischen Bedarfes sein. Wir gehen davon aus, dass internationale Umweltberichte und ihre wissenschaftlichen Ergebnisse durch einen partizipativen, dialogorientierten Beratungsansatz für die nationale Politik-beratung aufbereitet werden können, um die Relevanz und die Anwendbarkeit der Ergebnisse zu steigern. Idealerweise mündet ein solcher Beratungsansatz in einen standardisierten Prozess, der nicht nur für einen konkreten Umweltbericht, sondern für eine Vielzahl von Um-weltberichten und Themen angewendet werden kann. Im vorliegenden Diskussionspapier stellen wir zunächst das INTERNAS-Projekt vor, das einen solchen Beratungsansatz entwickelt hat. Der INTERNAS-Prozess wird im Folgenden erläutert und reflektiert. Zusätzlich werden verschiedene in INTERNAS angewandte Einzel-methoden, wie beispielsweise Stakeholderdialoge und digitale Wissens-Repräsentationen (Ontologien) vorgestellt.

Fundings: Financial support for the conduct of the research, collection and analysis of data, as well as preparation of the article has been received by the European Union's Horizon 2020 research and innovation programme, under the MUSES project grant agreement No 727451. The authors would like to thank all stakeholder participants involved in the research and all project partners involved in the MUSES project. We acknowledge support by the Open Access Publication Funds of Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung. ; Peer reviewed ; Publisher PDF

Most studies on multi-use concepts of aquaculture and wind farms explored cultivation feasibility of extractive species, such as seaweed or bivalves. However, recent studies also included the cultivation of crustaceans or fish culture in the vicinity of wind turbines. Consequently, new approaches combine fed and extractive species in integrated multi-trophic aquaculture (IMTA) concepts for offshore multi-use to reduce nutrient output and the overall environmental impact of aquaculture operations. In this chapter the findings of a series of mussel and oyster cultivation experiments over several seasons are presented, which were conducted at different offshore test sites in the German Bight. Sites were selected within future offshore wind farm areas for an explicit multi-use perspective. Results have demonstrated successful growth and fitness parameters of these candidates and therefore definitely proved the suitability of these bivalve extractive species for open ocean aquaculture. Another approach for multi-use in offshore wind farms is its use as marine protected area or even for reinforcement or restoration of endangered species, which need the absence of any fisheries activity for recovery. Current projects are testing this perspective for the native European oyster Ostrea edulis and the European lobster Homarus gammarus. From the technological point of view there are many options on how to connect aquaculture devices, such as longline and ring structures as well as different cage types, to the foundations as well as to install it in the centre of the free area between wind turbines. Next to the system design also experiments on drag forces originating from the aquaculture structure on the foundation and vice versa were investigated. Complementary to the biological, environmental end technical aspects, a number of studies were specifically targeted to address and include stakeholders, their attitudes, their interests and concerns over time. By this approach, the inclusion of stakeholders into the research process from its very beginning until today, co-production of knowledge could be fostered. Next to joint identification of the major impediments and concerns of offshore aquaculture under multi-use conditions, new issues and research questions were identified. Primary focus on the economic potential of aquaculture in offshore wind farms was shown for consumption mussels. The production of mussels using longline technology is sufficiently profitable even under the assumption of substantial cost increases. This is especially true, if existing capacities could be used. Last but not least, the EEZ is a special area-it is not a state territory even if a coastal state has its sovereign rights and jurisdiction. It is an area where three legal systems come together: International law, law of the European Union and national law. There are no mariculture projects in the German EEZ and no approval procedure has been completed so far. Some sites are not suitable for mariculture, especially because of nature conservation and shipping.

The "open ocean" has become a highly contested space as coastal populations and maritime uses soared in abundance and intensity over the last decades. Changing marine utilization patterns represent a considerable challenge to society and governments. Maritime spatial planning has emerged as one tool to manage conflicts between users and achieve societal goals for the use of marine space; however, singlesector management approaches are too often still the norm. The last decades have seen the rise of a new ocean use concept: the joint "multi-use" of ocean space. This paper aims to explain and refine the concept of ocean multi-use of space by reviewing the development and state of the art of multi-use in Europe and presenting a clear definition and a comprehensive typology for existing multi-use combinations. It builds on the connectivity of uses and users in spatial, temporal, provisional, and functional dimensions as the underlying key characteristic of multi-use dimensions. Combinations of these dimensions yield four distinct types of multi-use with little overlap between them. The diversity of types demonstrates that there is no one-size-fitsall management approach, but rather that adaptive management plans are needed, focusing on achieving the highest societal benefit while minimizing conflicts. This work will help to sharpen, refine and advance the public and academic discourse over marine spatial planning by offering a common framework to planners, researchers and users alike, when discussing multi-use and its management implications.

As the human population grows and climate change threatens the stability of seafood sources, we face the key question of how we will meet increasing demand, and do so sustainably. Many of the 20 International Council for the Exploration of the Sea (ICES) member nations have been global leaders in the protection and management of wild fisheries, but to date, most of these nations have not developed robust aquaculture industries. Using existing data and documentation of aquaculture targets from government and industry, we compiled and analysed past trends in farmed and wild seafood production and consumption in ICES nations, as well as the potential and need to increase aquaculture production by 2050. We found that the majority of ICES nations lacks long-term strategies for aquaculture growth, with an increasing gap between future domestic production and consumption—resulting in a potential 7 million tonne domestic seafood deficit by 2050, which would be supplemented by imports from other countries (e.g. China). We also found recognition of climate change as a concern for aquaculture growth, but little on what that means for meeting production goals. Our findings highlight the need to prioritize aquaculture policy to set more ambitious domestic production goals and/or improve sustainable sourcing of seafood from other parts of the world, with explicit recognition and strategic planning for climate change affecting such decisions. In short, there is a need for greater concerted effort by ICES member nations to address aquaculture's long-term future prospects. ; 1

Failure of the blue revolution is a global risk. The international problem is that there is a gap in knowledge exchange between the aquaculture industry, policymakers trying to support aquaculture development and people who depend on aquaculture for a job and/or food source. Thus, governments and international organizations promoting aquaculture as the solution to improving food security, nutrition and income are failing to optimise production of natural aquatic resources. We identify a "people–policy gap", and suggest that this is an understudied constraint, which needs to be overcome before worldwide food security can be achieved from aquatic environments. We argue that this gap leads to uneven distribution of benefits, a disconnection between benefits and local needs, and detrimental effects on human health and food security, all of which can have negative repercussions on human communities and ecosystems. In order to address this need, we present an analytical framework to guide context specific, policy-relevant assessments of the social, economic and ecological dimensions of aquaculture on a case-by-case basis. The framework is designed to make best use of existing data and scientific tools for decision-making. In conclusion, we argue for: equal consideration of ecological, social and economic issues in aquaculture policymaking; pre-emptive identification of likely social impacts; integration of people- and context-specific social framing conditions into planning and policy review; addressing the social disconnection between global consumption and production; and, encouragement of creative combinations of theories and methods to assess and interpret the social dimensions of aquaculture in multiple contexts.