Developing nations, which have contributed little to the issue of climate change, are likely to experience reduced livelihood opportunities and emerging dietary nutrient deficiencies as a result of climate change impacts on fisheries.
Due to the expansion of fishing practices, fish catches have become stagnant at best while global fishing efforts continue to grow, ultimately creating major stresses on marine resources. Fisheries impacts on both coastal and deep-sea ecosystems are well understood and documented; however, the biological and ecological impacts of fishing on open-ocean systems are not well studied or documented.
Mechanisms and risk of cumulative impacts to coastal ecosystem services: An expert elicitation approach
Human activities degrade and convert coastal ecosystems through infrastructure development, resource extraction, and tourism, among other anthropogenic activities. There is an urgency to gain a comprehensive understanding of how human activities/stressors impact coastal ecosystems and the ecosystems services they provide us.
A healthy ocean will benefit global sustainable development in a number of ways, finds a new report published today by the Nippon Foundation-Nereus Program. With climate change and social inequity addressed, restoring the ocean will help alleviate poverty, provide livelihoods, and improve the health of millions around the world.
Solutions to blue carbon emissions: Shrimp cultivation, mangrove deforestation and climate change in coastal Bangladesh
Bangladesh is a world leader in aquaculture production, ranking sixth after China, Indonesia, India, Vietnam, and the Philippines. Due to the nation’s favourable physical characteristics, Bangladesh is highly suitable for coastal aquaculture, especially the tiger shrimp sector. Shrimp culture has diversified livelihood opportunities for coastal communities, as over two million people are involved in fish farming, market, processing, and exporting.
Seafood is one of the highest valued food items traded among countries around the world. Seafood exceeds the trade value of sugar, maize, coffee, rice and cocoa combined. But where is this seafood going and who is most benefiting?
Off the northern Andaman coast of Thailand, marine protected areas have been established to protect the vibrant coral reefs and underwater ecosystems. But underlying the good intentions of those promoting marine conservation are unintended consequences – that small-scale fishers and indigenous Moken communities were restricted from fishing and harvesting in the area with no other livelihoods options provided.
This paper proposes that climate change will alter the effects of pollutants in marine food webs by either directly increasing contaminant exposure (for instance due to receding ice caps), or making organisms more vulnerable to other climate change impacts. It discusses two main classes of contaminants that can affect the health of marine organisms: fat-soluble contaminants known as persistent organic pollutants (POPs), and protein-binding contaminants such as methylmercury (MeHg).
Managing living marine resources in a dynamic environment: The role of seasonal to decadal climate forecasts
Variations in climate lead to fluctuations and changes in fish stocks; they can have effects on such things as fish behaviour, distributions and growth. Because of this, fisheries management has to respond dynamically to these fluctuations. If management decisions are made primarily on past patterns, the negative impacts can be exacerbated, especially with climate change.
From tiny phytoplankton to massive tuna: how climate change will affect energy flows in ocean ecosystems
Phytoplankton are the foundation of ocean life, providing the energy that supports nearly all marine species. Levels of phytoplankton in an ocean area may seem like a good predictor for the amount of fish that can be caught there, but a new study by Nereus Program researchers finds that this relationship is not so straightforward