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Policy Forum

Instability in the South China Sea: Ecosystem challenges and political complexities

One of the most significant – and increasingly bitter – international disputes of recent years has engaged legal claims over maritime territory in the South China Sea. Under the United Nations Convention on the Law of the Sea of 1982 (UNCLOS), to which the main protagonists are parties, states are entitled to claim an Exclusive Economic Zone (EEZ) conferring sovereign rights and jurisdiction up to 200 nautical miles of maritime space from their coasts. In the South China Sea, however, this position has been complicated by historical claims over a series of small islands and reefs within the southern section of this area.

Five key aspects of sustainable aquaculture: Can aquaculture help tackle global food security, especially in Africa?

by Muhammed Oyinlola, Nereus Fellow

Aquaculture, the farming of aquatic species, is gradually becoming an important aspect of solving the challenge of global food security. The supply of seafood from fisheries is declining; fish stocks can only be increased if we reduce our fishing pressures, yet governments continue to subsidize the fishing industry for us to fish more. Hence, the open window we have is aquaculture. My argument is that we need to change from hunting in the ocean to farming the oceans just the way we changed hunting on land to producing animal protein by farming. Can aquaculture be our best option to increase the seafood supply for the world’s ever increasing population?

What effects will Brexit have on the UK’s fishing industry? Uncertainties facing policy, science and society.

In the lead up to last week’s referendum on whether the United Kingdom should remain in the European Union, immigration often seemed to be at the forefront at the debate. But the fishing industry was also a hot topic, even leading to demonstrations and bitter exchanges on the impact of EU membership, including from boats on the Thames. With the UK voting to leave the EU, there is a lot of uncertainty for the future of fisheries. Here are some areas, affecting policy, science and society, where the impacts may be felt.

Managing straddling and highly migratory fish stocks: Nereus holds side event at the UN Fish Stocks Agreement Review

Fish don’t respect borders. With 1982’s United Nations Convention on the Law of the Sea, coastal nations were given the right to manage fisheries within their Exclusive Economic Zones (EEZ) – the area that extends, generally, up to 200 nautical miles. But of course, fish don’t adhere to imaginary lines in the ocean.

Fish of the day: Why does seafood seasonality matter?

By Wilf Swartz, Nereus Program Manager/Research Associate

Japanese call it shun (旬), the seasonality of food. It refers to the time of year when a specific type of food is at its peak, either in terms of harvest or flavour. It is not unique to Japanese culture, as The Byrds reminded us in the mid-1960s with their, now classic, rendition of “Turn! Turn! Turn! (to Everything There Is a Season).”

Ask an Expert: Why is the global fishing industry given $35 billion in subsidies each year?

OceanCanada Research Director Rashid Sumaila and his collaborators from the UBC Global Fisheries Cluster (Sea Around Us and the Nereus Program) have published an updated estimate of global fisheries subsidies in the international journal Marine Policy. The researchers found that the global fishing industry is being supported by $35 billion yearly in government subsidies, the majority of these, upwards of $20 billion annually, promote increased capacity that can lead to harmful impacts such as overfishing.

A computer model is used to show projections of how fish species may move towards the poles and into deeper waters in a high CO2 emissions scenario. Source: Jones and Cheung 2015.

Where do we go from here? Building confidence in climate change impact projection models

Climate change is expected to have major impacts on the ocean, the species that live there, and the people who rely it for their food and livelihood. Since the beginning of the 20th century, CO2 emissions from human activities have altered physical and chemical properties of the ocean. The ocean has become warmer and, in some areas, less oxygenated, which has caused changes in the productivity and distribution of marine species.

Process versus products: The role of creativity in the working lives of scientists

By Rebecca G. Asch, Senior Nereus Fellow, Princeton University

My mother is an abstract expressionist painter who creates art using oil paints, acrylics, watercolors, and pen and ink. My father has a Masters degree in physics and spent most of his career working as a software engineer. As a result, I have born witness to many conversations about the intersection between art and science throughout my life.

Jellyfish for dinner: Is fishing a viable solution to the increase in jellyfish blooms?

While jellyfish, with their soft, gelatinous bodies, may seem like innocuous creatures, when they occur in large blooms they can often cause detrimental effects. Jellyfish blooms have been observed to clog power plants, cause mass mortality to fish in aquaculture farms, burst fishing nets and even sink a 10 tonne fishing vessel. It is predicted that jellyfish will benefit from climate change and other anthropogenic changes, such as overfishing, eutrophication and coastal development.