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  • 1
    Keywords: Freshwater ecology. ; Marine ecology. ; Biodiversity. ; Ecology . ; Oceanography. ; Environmental education. ; Welfare economics. ; Freshwater and Marine Ecology. ; Biodiversity. ; Biooceanography. ; Environmental and Sustainability Education. ; Social Economy.
    Description / Table of Contents: 1. The future of food from the sea -- Chapter 2.The Expected Impacts of Climate Change on the Ocean Economy -- Chapter 3. What Role for Ocean-Based Renewable Energy and Deep-Seabed Minerals in a Sustainalble Future? -- Chapter 4. The Ocean Genome: Conservation and the Fair, Equitable and Sustainable Use of Marine Genetic Resources -- Chapter 5. Leveraging Multi-Target Strategies to Address Plastic Pollution in the Context of an Already Stressed Ocean -- Chapter 6. Technology, Data and New Models for Sustainably Managing Ocean Resources -- Chapter 7. Coastal Development: Resilience, Restoration and Infrastructure Requirements -- Chapter 8. National Accounting for the Ocean and Ocean Economy -- Chapter 9. Ocean Finance -- Chapter 10. Critical Habitats and Biodiversity: Inventory, Threshold and Governance -- Chapter 11. The Human Relationship with Our Ocean Planet -- Chapter 12. The Ocean Transition: What to Learn from System Transitions -- Chapter 13. Towards Ocean Equity -- Chapter 14. Integrated Ocean Management -- Chapter 15. Illegal, Unreported and Unregulated Fishing and Associated Drivers -- Chapter 16. Organised Crime Associated with Fisheries -- Chapter 17. The Ocean as a Solution to Climate Change: Five Opportunities for Action -- Chapter 18. A Sustainable Ocean Economy for 2050: Approximating Its Benefits and Costs -- Chapter 19. A Sustainable & Equitable Blue Recovery to the COVID-19 Crisis -- Chapter 20. Ocean Solutions That Benefit People, Nature and the Economy -- Chapter 21. Transformations for a Sustainable Ocean Economy: A Vision for Protection, Production and Prosperity.
    Abstract: Home to over 80 percent of all life on Earth, the ocean is the world’s largest carbon sink and a key source of food and economic security for billions of people. The relevance of the ocean for humanity's future is undisputed. However, the ocean’s great potential to drive economic growth and equitable job creation, sustain healthy ecosystems, and mitigate climate change is not yet fully recognised. Lack of awareness of this potential as well as management and governance challenges pose impediments. Until these impediments are removed, ocean ecosystems will continue to be degraded and opportunities for people lost. A transition and a clear path to a thriving and vibrant relationship between humans and the ocean are urgently needed. This open access collection of papers and reports identifies a path that is inspired by science, energised by engaged people, and emboldened by visionary leaders. These assessments of knowledge are commissioned by the High Level Panel for a Sustainable Ocean Economy (Ocean Panel), which was established in September 2018 as a unique initiative led by heads of state and government from around the world, to showcase the latest leading-edge science, knowledge and state-of-the-art thinking on key ocean issues. Altogether, The Blue Compendium offers innovative ocean solutions in technology, policy, governance, and finance realms, that could help accelerate a transition to a more sustainable and prosperous relationship with the ocean. The comprehensive assessments have already informed policy making at the highest levels of government and motivated an impressive array of responsive and ambitious action across a growing network of leaders in business, finance and civil society. .
    Type of Medium: Online Resource
    Pages: XII, 915 p. , online resource.
    Edition: 1st ed. 2023.
    ISBN: 9783031162770
    DDC: 577.6
    Language: English
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  • 2
    ISSN: 1432-1939
    Keywords: Community regulation ; Experiments ; Food web ; Rocky intertidal ; Tropics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Menge and Sutherland (1976) predicted that in physically benign habitats: (1) community structure will be most strongly affected be predation, (2) the effect of predation will increase with a decrease in trophic position in the food web, (3) trophically intermediate species will be influenced by both predation and competition, and (4) competition will occur among prey species which successfully escape consumers. These predictions were tested in a tropical rocky intertidal community on the Pacific coast of Panama. The most abundant mobile species included fishes and crabs, which occupied the top trophic level, and predaceous gastropods and herbivorous molluscs, which occupied intermediate trophic levels. The most abundant sessile organisms were encrusting algae, foliose algae, barnacles, and bivalves. Diets were broad and overlapping, and 30.3% of the consumers were omnivorous. Each consumer group had strong effects on prey occurring at lower trophic levels: (1) Fishes and crabs reduced the abundance of predaceous snails, herbivorous molluscs, foliose algae, and sessile invertebrates. (2) Predaceous gastropods reduced the abundance of herbivorous molluscs and sessile invertebrates. (3) Herbivorous molluscs reduced the abundance of foliose algae and young stages of sessile invertebrates, and altered relative abundances of the encrusting algae. The encrusting algae, although normally the dominant space occupiers, proved to be inferior competitors for space with other sessile organisms when consumers were experimentally excluded. However, the crusts escaped consumers by virtue of superior anti-herbivore defenses and competed for space despite intense grazing. Observations do not support the hypothesis that the trophically intermediate species compete. Hence, with the exception of this last observation, the predictions of the Menge and Sutherland model were supported. Although further work is needed to evaluate other predictions of the model in this community, evidence from this study joins an increasing body of knowledge supporting the model. Contradictory evidence also exists, however, indicating that aspects of the model require revision.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1573-1561
    Keywords: Neorhodomela larix ; red alga ; lanosol ; 2,3-dibromo-4,5-dihydroxybenzyl alcohol ; lanosol 1,4-disulfate ester
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Aqueous extraction and HPLC separation techniques were used to quantify two major bromophenols naturally present in the red algaNeorhodomela larix: lanosol (2,3-dibromo-4,5-dihydroxybenzyl alcohol) and its 1,4-disulfate ester. Maximum concentrations of each compound were as high as 1.5% on a wet mass basis. The within-plant distributions of lanosol and its ester were highly variable on centimeter scales: adjacent portions often varied by an order of magnitude in bromophenol content. Some bromophenol variation was related to algal phase, location within the algal thallus, and reproductive status. Bromophenol concentrations were higher in exterior vegetative regions and some reproductive structures (cystocarps and tetrasporangial branchlets) than in interior vegetative regions or male reproductive structures (spermatangial stichidia). In contrast to results reported for harvestedN. larix, there was no evidence that the intactin situ algae released either compound into seawater.
    Type of Medium: Electronic Resource
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