Manuel Barange

Food and Agriculture Organization of the United Nations | FAO · Fisheries and Aquaculture Division

A common goal among fisheries science professionals, stakeholders, and rights holders is to ensure the persistence and resilience of vibrant fish populations and sustainable, equitable fisheries in diverse aquatic ecosystems, from small headwater streams to offshore pelagic waters. Achieving this goal requires a complex intersection of science and...

Despite contributing to healthy diets for billions of people, aquatic foods are often undervalued as a nutritional solution because their diversity is often reduced to the protein and energy value of a single food type (‘seafood’ or ‘fish’)1–4. Here we create a cohesive model that unites terrestrial foods with nearly 3,000 taxa of aquatic foods to...

This section discusses the main principles of the design and implementation of climate adaptation projects in fisheries and aquaculture. Adaptation tools and methods are suggested to advance the analysis of adaptation options. Recommended adaptation responses in the fisheries and aquaculture sector can be grouped into three categories: (i) institut...

Bondad-Reantaso MG, Mackinnon B, Hao B, Huang J, Tang-Nelson K, Surachetpong W, Alday-Sanz V, Salman M, Brun E, Karunasagar I, Hanson L, Sumption K, Barange M, Lovatelli A, Sunarto A, Fejzic N, Subasinghe R, Mathiesen ÁM, Shariff M. (2020). Viewpoint: SARS-CoV-2 (the cause of COVID-19 in humans) is not known to infect aquatic food animals nor conta...

In June 2018, >600 scientists from over 50 countries attended the Fourth International Symposium on the Effects of Climate Change on the World’s Oceans (ECCWO-4). ECCWO-4 provided a forum for scientists to share information, build understanding, and advance responses to climate impacts on oceans and the many people, businesses and communities that...

While the physical dimensions of climate change are now routinely assessed through multimodel intercomparisons, projected impacts on the global ocean ecosystem generally rely on individual models with a specific set of assumptions. To address these single-model limitations, we present standardized ensemble projections from six global marine ecosyst...

It is common to assume that climate change impacts on future fish catches, relative to current levels of catch, are directly proportional to changes in the capacity of the ocean to produce fish. However, this would only be the case if production was optimized, which is not the case, and continues to do so in the future, which we do not know. It is...

Hilsa (Tenualosa ilisha) or river shad is an anadromous fish species widely distributed in the North Indian Ocean, mainly in the Bay of Bengal (BoB). Hilsa is the national fish of Bangladesh and it contributes 10% of the total fish production of the country, with a market value of $1.74 billion. Hilsa also holds a very important place in the econom...

The world’s oceans are changing in response to a changing climate, these changes have significant consequences, there is much at risk, and action is needed now to increase the resilience of ocean ecosystems and the people that depend on them. That was the message from the 4th International Symposium “Effects of Climate Change on the World’s Oceans”...

Climate change is shifting the abundance and distribution of marine species with consequences for ecosystem functioning, seafood supply, management and conservation. Several approaches for future projection exist but these have never been compared systematically to assess their variability. We conducted standardized ensemble projections including 6...

Deltas are home to a large and growing proportion of the world’s population, often living in conditions of extreme poverty. Deltaic ecosystems are ecologically significant as they support high biodiversity and a variety of fisheries, however these coastal environments are extremely vulnerable to climate change. The Ganges-Brahmaputra-Meghna (Bangla...

Within the Bangladesh delta there is a significant dependence on aquatic ecosystem services both economically and for local well-being. The fisheries industry has seen steady growth with production tripling in the last two decades, largely driven by the expansion in inland aquaculture fisheries. Analysis shows that the impacts of climate change are...

Model intercomparison studies in the climate and Earth sciences communities have been crucial to building credibility and coherence for future projections. They have quantified variability among models, spurred model development, contrasted within- and among-model uncertainty, assessed model fits to historical data, and provided ensemble projection...

Model intercomparison studies in the climate and earth sciences communities have been crucial to build credibility and coherence for future projections. They have quantified variability among models, spurred model development, contrasted within- and among-model uncertainty, assessed model fits to historical data, and provided ensemble projections o...

Total world marine and inland fish production, currently above 160 million t from capture fisheries and aquaculture, provides a significant proportion of protein consumption by humans. The effects of climate change on total capture fisheries and aquaculture production have to date been small, but this will change as temperatures rise, oxygen and pH...

Marine reserves are viewed as flagship tools to protect exploited species and to contribute to the effective management of coastal fisheries. Yet, the extent to which marine reserves are globally interconnected and able to effectively seed areas, where fisheries are most critical for food and livelihood security is largely unknown. Using a hydrodyn...

In a recent commentary, Pauly and Zeller disagreed with the Food and Agriculture Organization's interpretation of its global capture fishery production records, arguing that trends were distorted by unreliable statistics in some countries. They criticized FAO for not having used their “catch reconstructions” in the 2016 State of the World Fisheries...

To predict the impacts of climate change it is essential to understand how anthropogenic change alters the balance between atmosphere, ocean and terrestrial reservoirs of carbon. It has been estimated that natural atmospheric concentrations of CO2 are almost 200ppm lower than they would be without the transport of organic material produced in the s...

Assessments of the combined ecological impacts of ocean acidification and warming (OAW) and their social and economic consequences can help develop adaptive and responsive management strategies in the most sensitive regions. Here, available observational and experimental data, theoretical, and modelling approaches are combined to project and quanti...

The Paris Conference of Parties (COP21) agreement renewed momentum for action against climate change, creating the space for solutions for conservation of the ocean addressing two of its largest threats: climate change and ocean acidification (CCOA). Recent arguments that ocean policies disregard a mature conservation research field and that protec...

The 3rd International Symposium on the Effects of Climate Change on the World's Oceans was held in Santos, Brazil, in March 2015, convened by the International Council for the Exploration of the Sea (ICES), the North Pacific Marine Science Organization (PICES), and the Intergovernmental Oceanographic Commission of UNESCO (IOC), and organized locall...

Fisheries provide 24% of animal protein consumed and employ over 72 million people worldwide. In recent years the world per capita fish consumption has been increasing from an average of 9.9 kg in the 1960s to 19.2 kg in 2012. In Bangladesh and Ghana around 50-60% of animal protein is supplied by fish (12% in India). Fishery and aquaculture sectors...

Here we present quantitative projections of potential futures for ecosystems in the North Atlantic basin generated from coupling a climate change-driven biophysical model (representing ecosystem and fish populations under climate change) and a scenario-driven ecological-economic model (representing fleets and industries under economic globalization...

The fisheries sector is crucial to the Bangladeshi economy and wellbeing, accounting for 4.4% of national Gross Domestic Product (GDP) and 22.8% of agriculture sector production, and supplying ca.60% of the national animal protein intake. Fish is vital to the 16 million Bangladeshis living near the coast, a number that has doubled since the 1980s....

Projections of the impacts of climate change on marine ecosystems are a key prerequisite for the planning of adaptation strategies, yet are inevitably associated with uncertainty. Identifying, quantifying, and communicating this uncertainty is key to both evaluating the risk associated with a projection and building confidence in its robustness. We...

The North Atlantic and Arctic Ocean region includes Food and Agriculture Organization fishing regions 21, 27 and 18. Possible impacts of ocean acidification on fisheries and aquaculture in the region differ between northern and southern parts of the North Atlantic, and are higher in the North in terms of degree of acidification and organisms and ec...

The fisheries industry provides a crucial source of income and food for Bangladesh, and is second only to agriculture in the overall economy of the country. Fisheries accounts for 4.4% of Bangladesh GDP, 22.8% of agriculture sector and 2.5% of total export earnings. It also contributes 60% of the animal protein intake of Bangladeshis, and even more...

An assessment of the potential biological impacts and economic consequences of changes in the ocean due climate and environmental change is needed for sustainable ocean resources management. Here, we show the use of new theory, observations, experiments and modelling to quantify the impacts of change on ecosystem services under different CO2 emissi...

Fish provides more than 4.5 billion people with at least 15 % of their average per capita intake of animal protein. Fish's unique nutritional properties make it also essential to the health of billions of consumers in both developed and developing countries. Fish is one of the most efficient converters of feed into high quality food and its carbon...

Fish provides more than 4.5 billion people with at least 15 % of their average per capita intake of animal protein. Fish's unique nutritional properties make it also essential to the health of billions of consumers in both developed and developing countries. Fish is one of the most efficient converters of feed into high quality food and its carbon...

Understanding long-term, ecosystem-level impacts of climate change is challenging because experimental research frequently focuses on short-term, individual-level impacts in isolation. We address this shortcoming first through an inter-disciplinary ensemble of novel experimental techniques to investigate the impacts of 14-month exposure to ocean ac...

The social, economic, and ecological consequences of projected climate change on fish and fisheries are issues of global concern. In 2012, the International Council for the Exploration of the Sea (ICES) and the North Pacific Marine Science Organization (PICES) established a Strategic Initiative on Climate Change Effects on Marine Ecosystems (SICCME...

The world's oceans play a crucial role in the carbon budget, absorbing approximately a quarter of the CO2 emitted through the burning of fossil fuels. The North Atlantic (NA) is the ocean region that accumulates the largest inventory of anthropogenic CO2 (IPCC AR5). It is therefore essential to understand effects of climate change and other impacts...

society/index.php/iemss-2014-proceedings Abstract: Oceans stand under double exposure to global warming and of economic globalization. This generates anxieties and contributes to the need for specific governance. A first expression lies in the needs for integrated representations allowing a collaborative development of scenarios. Main challenge her...

'Wasp-waist' systems are dominated by a mid trophic-level species that is thought to exert top-down control on its food and bottom-up control on its predators. Sardines, anchovy, and Antarctic krill are suggested examples, and here we use locusts to explore whether the wasp-waist concept also applies on land. These examples also display the traits...

Apart from being commercially and socially significant, anchovies and sardines populations occupy crucial positions in the oceans’ ecosystems. Low in the food chain, clupeoids tend towards abundance, as if their purpose in life was to be eaten and fuel the upper levels of marine trophic chains. The present book covers a broad spectrum of topics on...

Growing human populations and changing dietary preferences are increasing global demands for fish, adding pressure to concerns over fisheries sustainability. Here we develop and link models of physical, biological and human responses to climate change in 67 marine national exclusive economic zones, which yield approximately 60% of global fish catch...

The Food and Agriculture Organization (FAO) defines reduction fisheries as fisheries that are geared towards the reduction of the catch to fishmeal and/or fish oil. These fisheries are relatively recent. Excess of seasonal catches of herring and sardines started to be processed in northern Europe and North America at the beginning of the 19th centu...

In 2008, the North Pacific Marine Science Organization (PICES) and the International Council for the Exploration of the Sea (ICES) approved the formation of an interdisciplinary Working Group on Forecasting Climate Change Impacts on Fish and Shellfish (WG-FCCIFS). This Working Group was designed to enagage the PICES and ICES scientific communities...

Contribution and long-term future of marine fisheries as providers of food and income in Bangladesh

Ecosystems in Bangladesh are home to 1,093 marine organisms including finfish (44.35%), shellfish (32.23%), seaweeds (15.10%) and other organisms (8.32%). The country, however, is experiencing serious biodiversity degradation in recent years, which threatens the services provided by these ecosystems. As part of the activities under ESPA Delta proje...

Assessing the potential biological and socio-economic consequences resulting from climate change (CC) and ocean acidification (OA) impacts on marine ecosystems is necessary for the sustainable utilisation and management of the oceans’ resources and services. This requires interdisciplinary collaborations between experimental biologists, oceanograph...

Hollowed, A. B., Barange, M., Beamish, R., Brander, K., Cochrane, K., Drinkwater, K., Foreman, M., Hare, J., Holt, J., Ito, S-I., Kim, S., King, J., Loeng, H., MacKenzie, B., Mueter, F., Okey, T., Peck, M. A., Radchenko, V., Rice, J., Schirripa, M., Yatsu, A., and Yamanaka, Y. 2013. Projected impacts of climate change on marine fish and fisheries....

There is growing interest in models of marine ecosystems that deal with the effects of climate change through the higher trophic levels. Such end-to-end models combine physicochemical oceanographic descriptors and organisms ranging from microbes to higher-trophic-level (HTL) organisms, including humans, in a single modeling framework. The demand fo...

Climate change has already altered the distribution of marine fishes. Future predictions of fish distributions and catches based on bioclimate envelope models are available, but to date they have not considered inter-specific interactions. We address this by combining the species-based Dynamic Bioclimate Envelope Model (DBEM) with a size-based trop...

Climate change is affecting the distribution and abundance of marine fishes and invertebrates. Bioclimate envelope approaches have been used to predict changes in the distribution of multiple species on large spatial scales but presently do not account for the effects of intra- and inter-specific competition for resources among species on the rate...

Existing methods to predict the effects of climate change on the biomass and production of marine communities are predicate on modelling the interactions and dynamics of individual species, a very challenging approach when interactions and distribution are changing and little is known about the ecological mechanisms driving the responses of many sp...