Social innovation – A future pathway for Blue growth?

The European Union has launched the Blue growth concept as a strategy for stimulating economic growth in European seas. It is accompanying the core principles of the Green growth paradigm that seek to stimulate smart, sustainable and inclusive growth of economic activities. Focusing on Blue growth, this article examines its adequacy to enable social innovation as a strategy for the use and management of marine resources. Social innovation is interpreted as the changing behaviour of a group of actors joined in a network, leading to new and improved ways of collaborative action within the group and beyond. Social innovation can contribute to changing behaviour across different institutional settings, across markets and public sectors, and to enhancing bottom-up responsible inventiveness towards integration of social, economic and environmental objectives. Based on case-study research it is concluded that, to secure long-term sustainable development over short-term benefits, a social innovation perspective in the maritime domain will depend on cooperation, inclusiveness and trust

Mobilising investors for Blue Growth

The European Union's Blue Growth Strategy is a long term strategy to support sustainable growth in the marine and maritime sectors, aiming to contribute to innovation and economic growth (European Commission, 2012). The EU sees the financial sector as a key partner to bring about transition to sustainable consumption and production. However, knowledge about investment behavior, experience with working with these investors, and ways to engage investors in the Blue Growth sectors is lacking. This paper examines this knowledge gap. It characterizes investors and identifies investor behavior, investors' motives, and conditions and criteria relevant for investors to invest in Blue Growth sectors. The presented results are derived from a literature study on investors and investment behavior, an electronic survey and in-depth interviews. Stereotypical images of private equity bankers or wealthy individuals do not do justice to the diversity of investors involved in the Blue Growth sectors. These sectors are still in development and various risks reduce the willingness to invest. Risk mitigation should be seen as a shared responsibility of entrepreneurs, investors and governments. Government support must go further than financial support for research and development or technological demonstration projects. Proven technologies get stuck in the Valley of Death as investors alone are not willing to take the risk associated with upscaling of promising technologies. Tied in a reciprocal relationship, governments need to attract private investors—their capital, knowledge, and networks—to further grow of the Blue Growth sectors while investors need stable, predictable, and effective government support schemes to mitigate their financial risks

The Environmental Impact of Partial Substitution of Fish-Based Feed with Algae- and Insect-Based Feed in Salmon Farming

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State of knowledge regarding the potential of macroalgae cultivation in providing climate-related and other ecosystem services

Macroalgae (or seaweed) aquaculture can potentially provide many ecosystem services, including climate change mitigation, coastal protection, preservation of biodiversity and improvement of water quality. Nevertheless, there are still many constraints and knowledge gaps that need to be overcome, as well as potential negative impacts or scale-dependent effects that need to be considered, before macroalgae cultivation in Europe can be scaled up successfully and sustainably. To investigate these uncertainties, the Expert Working Group (EWG) on Macroalgae was established. Its role was to determine the state of knowledge regarding the potential of macroalgae culture in providing climate-related and other ecosystem services (ES) and to identify specific knowledge gaps that must be addressed before harvesting this potential. The methodological framework combined a multiple expert consultation with Delphi process and a Quick Scoping Review (QSR). To analyse the outcome of both approaches, the EWG classified the findings under the categories Political, Environmental, Social, Technical, Economic and Legal (PESTEL approach) and categorised the ES based on the CICES 5.1 classification. Although representative stakeholders from many different disciplines were contacted, the majority of responses to the Delphi process were from representatives of academia or research. While the results of each method differed in many ways, both methods identified the following top six ecosystem services provided by seaweed cultivation: i) provisioning food, ii) provisioning hydrocolloids and feed, iii) regulating water quality, iv) provisioning habitats, v) provisioning of nurseries and vi) regulating climate. Diverse technological knowledge gaps were identified by both methods at all scales of the macroalgae cultivation process, followed by economic and environmental knowledge gaps depending on the method used. Based on suggestions from the expert respondents in the Delphi process, there is a clear need for an European-wide strategy for reducing risks for seaweed producers, providing clear standards and guidelines for obtaining permits, and providing financial support to improve technological innovation, that will ensure consistent quality. Legal (e.g., safety regulations), economic (e.g., lack of demand for seaweeds in many countries) and technological (e.g., production at large scale) constraints represented almost 70% of the total responses in the Delphi process, whereas environmental and technical constraints were more dominant in the literature. The most commonly identified potential negative impacts of macroalgae cultivation both among the expert responses and the reviewed articles were unknown environmental impacts, e.g. to deep sea, benthic and pelagic ecosystems. The present study provides an assessment of the state of knowledge regarding ES provided by seaweed cultivation and identifies the associated knowledge gaps, constraints and potential negative impacts. One of the main hurdles recognised by the EWG was the understanding of ES themselves by the different stakeholders, as well as the issue of scale. Studies providing clear evidence of ES provided by seaweed cultivation and/or valorisation of these services were lacking in the literature, and some aspects, like cultural impact etc. were missing in the responses to the questionnaires during the Delphi process. The issue of scale and scaling-up was omnipresent both in assessing the ES provided by seaweed cultivation and in identifying knowledge gaps, constraints and potential negative impacts. For example, the ES provided will depend on the scale of cultivation, the main technological knowledge gaps were often related to scale of cultivation. Likewise at a large scale of operations, there could be multiple associated potential side effects, which need to be further investigated. Based on the outcomes of this investigation, we provide an outlook with open questions that need to be answered to support the sustainable scaling-up of seaweed cultivation in Europe

Integrated biorefinery approach to valorise Saccharina latissima biomass : Combined sustainable processing to produce biologically active fucoxanthin, mannitol, fucoidans and alginates

The feasibility of European seaweed farming depends on the valorisation of algal biomass harvested. In the present work we have combined sequential extraction processes from Saccharina latissima to produce a range of products, focusing on the extraction of fucoxanthin using supercritical CO2 followed by different valorisation routes. We optimised the conditions the for extraction of fucoxanthin (40 MPa, temperature has little impact on extraction) and the extracts obtained were tested on cancer cell cultures to determine the antiproliferative effects of this pigment. We established that the supercritical CO2 extracts have an antiproliferative effect similar to that of commercial fucoxanthin (concentrations 0.1–0.4 mg/mL) and showed that the active compound in the extracts is fucoxanthin. In order to integrate this process with a holistic valorisation of the algal biomass, we explored the extraction of mannitol using a microwave-assisted protocol (4.15 wt % yield). We also evaluated the potential extraction of fucoidans and alginates from the solids remaining after supercritical CO2 extraction (67.27 to 69.38 % of alginates). A life cycle analysis of the supercritical CO2 extraction proposed shows that the drying process of algal biomass and the energy used to compress the CO2 are the elements with the highest environmental impact (over 90% of CO2 eq/g of extract) in this the process, indicating routes for reducing the environmental footprint. Combining supercritical CO2 extraction and microwave-assisted extraction methods would enable European seaweed producers to obtain multiple marketable products from algal biomass

Participatory Design of Multi-Use Platforms at Sea

European oceans are subject to rapid development. New activities such as aquaculture and ocean energy have gained importance. This triggers interest in “multi-use platforms at sea” (MUPS), i.e., areas at sea in which different activities are combined. MUPS are complex features with regards to technology, governance, and financial, socioeconomic, and environmental aspects. To identify realistic and sustainable solutions and designs for MUPS, the MERMAID project applied a participatory design process (PDP) involving a range of stakeholders representing companies, authorities, researchers, and NGOs. This paper evaluates if and how the participatory design process contributed to the design of multi-use platforms. It is based on interviews with the managers of the case study sites and a questionnaire administered to all stakeholders participating in the PDP workshops. Analyzing the four case studies, we conclude that the participatory design process has had a valuable contribution to the development of the four different designs of MUPS, even though the preconditions for carrying out a participatory design process differed between sites. In all four cases, the process has been beneficial in generating new and shared knowledge. It brought new design issues to the table and increased knowledge and understanding among the different stakeholders

Identification of major dioxin-like compounds and androgen receptor antagonist in acid-treated tissue extracts of high trophic-level animals

We evaluated the applicability of combining in vitro bioassays with instrument analyses to identify potential endocrine disrupting pollutants in sulfuric acid-treated extracts of liver and/or blubber of high trophic-level animals. Dioxin-like and androgen receptor (AR) antagonistic activities were observed in Baikal seals, common cormorants, raccoon dogs, and finless porpoises by using a panel of rat and human cell-based chemical-activated luciferase gene expression (CALUX) reporter gene bioassays. On the other hand, no activity was detected in estrogen receptor α (ERα)-, glucocorticoid receptor (GR)-, progesterone receptor (PR)-, and peroxisome proliferator-activated receptor γ2 (PPARγ2)-CALUX assays with the sample amount applied. All individual samples (n = 66) showed dioxin-like activity, with values ranging from 21 to 5500 pg CALUX-2,3,7,8-tetrachlorodibenzo-p-dioxin equivalent (TEQ)/g-lipid. Because dioxins are expected to be strong contributors to CALUX-TEQs, the median theoretical contribution of dioxins calculated from the result of chemical analysis to the experimental CALUX-TEQs was estimated to explain up to 130% for all the tested samples (n = 54). Baikal seal extracts (n = 31), but not other extracts, induced AR antagonistic activities that were 8-150 μg CALUX-flutamide equivalent (FluEQ)/g-lipid. p,p′-DDE was identified as an important causative compound for the activity, and its median theoretical contribution to the experimental CALUX-FluEQs was 59% for the tested Baikal seal tissues (n = 25). Our results demonstrate that combining in vitro CALUX assays with instrument analysis is useful for identifying persistent organic pollutant-like compounds in the tissue of wild animals on the basis of in vitro endocrine disruption toxicity. © 2011 American Chemical Society

Een natuurlijkere toekomst voor Nederland in 2120

Nederland staat voor grote opgaven: de energietransitie, verduurzaming van de landbouw, herstel van de biodiversiteit, verstedelijking en klimaatadaptatie. Al deze opgaven hebben gevolgen voor de ruimtelijke inrichting van ons land. Het is onvermijdelijk dat Nederland er over honderd jaar anders uit zal zien. Grote veranderingen zijn nodig om opgewassen te zijn tegen een stijgende zeespiegel, perioden van extreem weer, een toenemende vraag naar voedselproductie en een noodzaak om de uitstoot van broeikasgassen terug te dringen.Deze opgaven vragen om een nieuw verhaal voor Nederland. Een verhaal waarin dit dichtbevolkte land zich ontwikkelt tot een gidsland waar natuur, duurzame economie, leefbaarheid en veiligheid voorop staan. Een verhaal gebaseerd op ‘nature based solutions’ waarin opgaven voor klimaat en biodiversiteit hand in hand gaan.Wageningen University & Research heeft dit verhaal geschreven gebaseerd op expertkennis: een toekomstvisie voor Nederland in 2120, waarin natuur en natuurlijke processen een hoofdrol spelen. Een visie die bedoeld is om te inspireren. Het schetst een toekomst waarin economische ontwikkeling en een natuur-inclusieve samenleving hand in hand gaan. De toekomstvisie houdt rekening met de bijzondere kenmerken van verschillende deelgebieden in Nederland. Door middel van kaarten en doorsnedes laten we op hoofdlijnen zien wat er per gebied mogelijk is op het gebied van ruimtelijke inrichting. Dit toekomstbeeld schetst een denkrichting gebaseerd op de uitkomsten van diverse ontwerp- en discussiesessies met onderzoekers. Er is behoefte aan nadere uitwerking en onderbouwing. Samen met stakeholders gaan we deze visie verder ontwikkelen, onderbouwen en vertalen naar handelingsperspectief voor het hier en nu