Governance of aquatic agricultural systems: Analyzing representation, power, and accountability

Aquatic agricultural systems in developing countries face increasing competition from multiple stakeholders over rights to access and use natural resources, land, water, wetlands, and fisheries, essential to rural livelihoods. A key implication is the need to strengthen governance to enable equitable decision making amidst competition that spans sectors and scales, building capacities for resilience, and for transformations in institutions that perpetuate poverty.

Global food supply: Certify sustainable aquaculture?

Aquaculture, the farming of aquatic organisms, provides close to 50% of the world's supply of seafood, with a value of U.S. $125 billion. It makes up 13% of the world's animal-source protein (excluding eggs and dairy) and employs an estimated 24 million people (1). With capture (i.e., wild) fisheries production stagnating, aquaculture may help close the forecast global deficit in fish protein by 2020.

Giant shellfish hatchery begins production in Mexico

In Mexico, the Direccion de Fomento Pesquero of the State Government of Sonora has financed a project for a shell¬fish hatchery and nursery complex at Bahia Kino on the Gulf of California which began production in January 1984. The project is part of a scheme to supplement fished products with aquaculture produce -- shrimp, fish and shellfish. There is a large but declining shrimp fishery in Sonora (over 14,000 tonnes worth nearly $200 million were landed in the 1983-1984 season).

Genotype by production environment interaction in the GIFT strain of Nile tilapia (Oreochromis niloticus)

Three discrete generations of GIFT fish (Nile tilapia strain, Oreochromis niloticus; a total of 10,065 fish with pedigree and phenotypic information) were tested in pond and cage culture environments to determine genotype by production environment interaction between both environments in Malaysia. Live weight (selected trait), standard length, body depth and width were recorded. A bivariate animal model was used to estimate variance and covariance components, whereby the homologous body traits in pond and cage environments were treated as genetically distinct traits.

Genetically Improved Farmed Tilapia (GIFT)

Genetic improvement through selective breeding has been used for millennia on crops and livestock, but up until the 1980s, little had been done to utilize this process for farmed fish. In response to the inadequate supply of tilapia seed and the deteriorating performance of the fish in many aquaculture systems in Asia, WorldFish and partners began the Genetic Improvement of Farmed Tilapia (GIFT) project to develop a faster-growing strain of Nile tilapia (Oreochromis niloticus) that was suitable for both small-scale and commercial aquaculture.

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