scholarly journals Future Fisheries in a Changing Ocean

2021 ◽  
Vol 55 (3) ◽  
pp. 114-115
Author(s):  
Katherine E. Mills ◽  
Lisa Kerr ◽  
David Reidmiller ◽  
Kanae Tokunaga

Abstract Marine fisheries provide protein, income, and employment for millions of people across the world, but future fisheries face multiple stressors, including climate change. To ensure continued flows of benefits from fisheries, we need modern, forward-looking ways of setting sustainability objectives that consider ecosystem carrying capacity, health of fish stocks, societal nutritional and economic needs, and equitable distribution of fishery benefits. Transdisciplinary teams of oceanographers, climatologists, ecologists, economists, data scientists, and decision scientists working together with fishery managers, municipal leaders, fishers, aquaculturists, and seafood supply chain businesses can reimagine sustainable fisheries in a changing world. Through coordinated, distributed research nodes, these types of teams will develop frameworks, information, infrastructure, and application pathways needed to ensure vibrant, resilient fisheries and fishing communities in healthy marine ecosystems in future decades.

2015 ◽  
Vol 4 (1) ◽  
pp. 6-26 ◽  
Author(s):  
Valeria Andreoni ◽  
Apollonia Miola

Purpose – The increasing complexity of the present economic system and the strong interdependencies existing between production activities taking place in different world areas make modern societies vulnerable to crisis. The global supply chain is a paradigmatic example of economic structures on which the impacts of unexpected events propagate rapidly through the system. Climate change, which affects societies all over the world, is one of the most important factors influencing the efficiency of the present economic networks. During the last decades a large set of studies have been oriented to investigate the direct impacts generated on specific geographical areas or productions. However, a smaller number of analyses have been oriented to quantify the cascading and indirect economic effects generated all over the world. The paper aims to discuss these issues. Design/methodology/approach – The main objective of this paper is to provide an overview of the main studies, methodologies and databases used to investigate the climate vulnerability of the global supply chain. Findings – The great complexity of the global economic system, coupled with methodological and data gaps, makes it difficult to estimate the domino effects of unexpected events. A clear understanding of the possible consequences generated all over the world is, however, a fundamental step to build socio-economic resilience and to plan effective adaptation strategies. Originality/value – The information provided in this paper can be useful to support further studies, to build consistent quantification methodologies and to fill the possible data gap.


OSEANA ◽  
2020 ◽  
Vol 45 (2) ◽  
pp. 50-68
Author(s):  
Mochamad Ramdhan Firdaus

Physalia physalis is one of the jellyfish believed to be responsible for a significant proportion of jellyfish attack cases in the world. As one of the most dangerous members of the Cnidarian in the sea, P. physalis has a sting that can paralyze their prey. To humans, the sting can cause cardiotoxic, neurotoxic, musculartoxic, and hemolytic effects. P. physalis has different biological characteristics than most organisms. For example, an individual of P. physalis actually is a colony consisting of four groups of individuals who have different structures and functions. The arrangement of the colony has a complex structure and shows a polymorphism. P. physalis is a pleustonic organism because they live on the surface of the water. P. physalis still leaves many mysteries to scientists. For example, the life cycle of a P. physalis is not yet fully known. Besides, the diversity of P. physalis also still leaves questions among scientists. Some believe that P. physalis is monotypic, while others suspect there is cryptic diversity. Therefore, the study of P. physalis is very interesting, especially under the issue of climate change. Many scientists believe that jellyfish get benefit from increasing sea temperatures, so the population is predicted to increase. The high population of P. physalis threatens the sustainability of fish stocks in the ocean, mainly due to P. physalis are productive predators of fish larvae. This paper aims to provide information on the biological aspects of P. physalis, which are still limited in Indonesia.


2021 ◽  
Author(s):  
Rolf Hut

<p>Ask people in 1940 what 2020 would be like and they would talk about hoverboards and whether androids dream of electric sheep. You wouldn’t get a lot of projections that 2020 would be a few degrees warmer globally, that glaciers are disappearing and coastal cities sinking… But they are. </p><p>Looking forward to 2100 it is the other way around: no idea what technology we’ll be using to communicate / commute and relax, but due to gigantic increase in geoscientific understanding over the last decades we do know for sure that the sea levels will continue to rise and global temperatures increase.</p><p>Hydrology has always been a scientific discipline that combines pure academic interest with high societal relevance. While venues of pure academic interest can go in all directions, we can use the predictions on future climate change to see what types of hydrological research will be relevant to society in 2100. </p><p>Are we on track for the RCP8.5 scenario with 4 degrees of (additional) global warming in 2100? This would lead to a combination of MadMax and Waterworld: current coastal zones will flood, whole islands will disappear and large parts of the world will become more desert-like. Or will the world come together and will nations and people start working together to collectively combat climate change to make sure we stay on the RCP2.5 scenario<sup>1</sup>?</p><p>In this invited talk I will sketch what scientific questions will be asked from hydrology in these situations and I will share my vision on how we can already start to prepare the knowledge base to be able to adequately answer these questions on our way to 2100.<br><br></p><p><sub><sup>1</sup>and invent faster than light travel in 2063...</sub></p>


2019 ◽  
pp. 179-184
Author(s):  
Ray Hilborn ◽  
Ulrike Hilborn

The Future of Fisheries. The much-ballyhooed imminent collapse of the world’s fish stocks is simply not borne out by the available data. In much of the world, fish stocks are increasing. We foresee continued fish production wherever there is effective fisheries management, but an uncertain future where there is none, and it is there that establishing effective fisheries management is the most pressing issue. Individual countries and their management agencies will increasingly be challenged to decide between economic efficiency and maintaining traditional fishing communities and practices. As long as the management systems stay in place and the marine ecosystems remain productive, the fish they produce can be sustainably harvested and contribute to food security.


Federalism-E ◽  
1969 ◽  
Vol 11 (1) ◽  
pp. 19-27
Author(s):  
Yvonne Leung

The problem of anthropogenic climate change is arguably one of the foremost pressing issues facing the world today. With that, governments around the world have been working together to put forward binding targets and agreements to reduce greenhouse gas emissions in their respective jurisdictions. The most famous example of these multilateral efforts has culminated in the Kyoto Protocol, which was formally ratified by the Canadian government in 2002. However, despite this ratification, the federal government has failed to meet its reduction targets or legislate any substantial policy that would effectively regulate and reduce emissions. Indeed, rather than seeing emission levels fall, Canada’s overall GHG emissions have increased substantially.1[...]


Author(s):  
Costas P. Pappis

In the previous chapters issues such as the role of the enterprise in a globalized world, extended enterprise, enterprise social responsibility and the role of supply chain management in view of sustainability requirements were introduced; basic facts about global warming and the impacts of climate change in human lives and the environment were presented; economic and social impacts of climate change for people around the world, developing and developed countries were outlined and climate change monetary costs were indicated; and relationships between climate change and key supply chain operations were discussed.


2016 ◽  
Vol 23 (3) ◽  
pp. 1000-1008 ◽  
Author(s):  
Phoebe A. Woodworth-Jefcoats ◽  
Jeffrey J. Polovina ◽  
Jeffrey C. Drazen

Author(s):  
Sabrina Bruno

Climate change is a financial factor that carries with it risks and opportunities for companies. To support boards of directors of companies belonging to all jurisdictions, the World Economic Forum issued in January 2019 eight Principlescontaining both theoretical and practical provisions on: climate accountability, competence, governance, management, disclosure and dialogue. The paper analyses each Principle to understand scope and managerial consequences for boards and to evaluate whether the legal distinctions, among the various jurisdictions, may undermine the application of the Principles or, by contrast, despite the differences the Principles may be a useful and effective guidance to drive boards' of directors' conduct around the world in handling climate change challenges. Five jurisdictions are taken into consideration for this comparative analysis: Europe (and UK), US, Australia, South Africa and Canada. The conclusion is that the WEF Principles, as soft law, is the best possible instrument to address boards of directors of worldwide companies, harmonise their conduct and effectively help facing such global emergency.


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