The authors assessed the combined effects of elevated CO2 and nutrients on the metabolism of a benthic community dominated by the seagrass Cymodocea nodosa (Ucria) Ascherson in a mesocosm experiment This study is one of the first investigating the effects of combined oceanic CO2 and nutrient enrichment, therefore providing critical information on how seagrass communities will respond to these changing conditions that reflect the global trend for the next decades.
The majority of vulnerability and adaptation scholarship, policies and programs focus exclusively on climate change or global environmental change. Yet, individuals, communities and sectors experience a broad array of multi-scalar and multi-temporal, social, political, economic and environmental changes to which they are vulnerable and must adapt.
The CGIAR Research Program on Aquatic Agricultural Systems (AAS) is being implemented in ten communities in the Barotse floodplain in Zambia’s Western Province. The objective of the AAS program is to reduce poverty and improve food security by harnessing the potential, productivity and diversity of aquatic and agricultural systems.
There is increasing awareness that integrating gender into development frameworks is critical for effective implementation of development strategies. In working to alleviate rural poverty, the CGIAR Research Program on Aquatic Agricultural Systems (AAS) recognizes that “business as usual” gender integration approaches will not deliver lasting and widespread improvements in agricultural productivity, poverty reduction and food security. In response, AAS operationalized a gender transformative approach.
Where access to renewable natural resources essential to rural livelihoods is highly contested, improving cooperation in resource management is an important element in strategies for peacebuilding and conflict prevention. While researchers have made advances in assessing the role of environmental resources as a causal factor in civil conflict, analysis of the positive potential of collective natural resource management efforts to reduce broader conflict is less developed.
In order to achieve sustainable fishing livelihoods in coastal communities, data on profitability of small-scale fisheries relative to fish species hauled and gear types used by fishermen is required as part of a broader fisheries management strategy. This study was undertaken with this in mind. Findings from this study suggest high rates of exploitation, in that stocks generally cannot provide for increased economic return in the face of increased investment.
Details are given of the tilapia hatchery systems used in the Philippines i.e., the "hapa" floating hatcheries and the backyard pond hatcheries, and their applications in Indonesia. Experiments are being conducted in Saguling Reservoir, near Bandung, Indonesia using hapa hatcheries, holding broodstock and growout fingerlings in floating cages. This technology is showing great potential for reaching poor farmers who have little land or capital but adequate water and access to irrigation.
This report is an account of a cross-country study that covered Vietnam, Indonesia and the Philippines. Covering four sites (one each in Indonesia and Vietnam) and two sites in the Philippines, the study documented the impacts of three climate hazards affecting coastal communities, namely typhoon/flooding, coastal erosion and saltwater intrusion. It also analyzed planned adaptation options, which communities and local governments can implement, as well as autonomous responses of households to protect and insure themselves from these hazards.
Seasonal floodplains under private and public ownership in the Indo-Ganges river basin provide food and income for millions of people in Bangladesh. This research aimed to understand the complex institutional relations that govern ownership, access, and control of the floodplains under Community Based Fish Culture (CBFC) to increase fish production and overall livelihoods of the poor.
A poster on WorldFish Bangladesh, and its mission to reduce poverty and hunger by improving fisheries and aquaculture