UA-Magazine, Aquaculture
Submitted by Femke Hoekstra on Wed, 12/14/2005 - 14:01
Urban Agriculture Magazine
Urban Aquatic Production
ISSN 1571-6244
No. 14, June 2005UA Magazine is published three times a year by the Network of Resource Centres for Urban Agriculture and Food Security (RUAF), under the Cities Farming for the Future Programme, which is financed by DGIS, the Netherlands, and IDRC, Canada.
UA Magazine is translated into French, Spanish, Chinese, Arabic and Turkish, and distributed in separate editions through the RUAF regional networks, and is also available on www.ruaf.org.
Submitted by Femke Hoekstra on Wed, 12/14/2005 - 13:36
With contributions from
Dr Eddie Kofi Abban and Mr. Ransford CudjoeIn: UA Magazine No. 14 - Urban Aquatic Production
Fish farming was taken up enthusiastically in the late 1970’s by the Accra Metropolitan Assembly (AMA) as an alternate income-generating venture. It was seen as an important part of the “Operation Feed Yourself “(OFY) that was launched by the then government. Efforts were made to develop fish farms on all available land that could not be used for farming at that time and where water was readily available. A few of the fish farmers made successes, but due to lack of training and information the majority ran into management problems. The fish farming programme to reduce poverty in the urban and periurban community failed. Within the last five years also, fish farming or aquaculture as an enterprise is becoming acknowledged by both urban and rural communities, but is gaining ground especially in urban centres.
Submitted by Femke Hoekstra on Wed, 12/14/2005 - 13:32
J. A. Afolabi, P. B. Imoudu and O. A. FagbenroIn: UA Magazine No. 14 - Urban Aquatic Production
Two major constraints to the establishment of fish culture enterprises in Nigeria include lack of initial capital input and the acquisition and ownership of land. The rental price of land suitable for modern and conventional pond fish culture becomes prohibitive and unaffordable especially in urban centres because of competing and conflicting uses. Family-scale (backyard) aquaculture in periurban areas has been recommended in Nigeria as an economical method of producing fish. The homestead concrete tank has been developed as an alternative and suitable enclosure for backyard fish culture.
Submitted by Femke Hoekstra on Wed, 12/14/2005 - 13:22
Krishen Rana, Jide Anyila, Khalid Salie, Charles Mahika, Simon Heck and Jimmy YoungIn: UA Magazine No. 14 - Urban Aquatic Production
Rapid urbanisation in Africa (of about 7-10% per year), unemployment, food insecurity in urban and peri-urban zones, and declining fish supplies are major issues that have to be addressed by local and national governments in the region. These issues are occurring against a backdrop of changing economic forces and trade patterns in national and international food markets in the region, causing significant proportions of the urban poor to engage in farming as a livelihood and household food security option.
Submitted by Femke Hoekstra on Wed, 12/14/2005 - 13:21
Magaly Coto Coto In: UA Magazine No. 14 - Urban Aquatic Production
Aquaculture is seen as an important alternative in Cuban food production. The MIP promotes aquaculture in Cuba though the concept of “Family Aquaculture
Submitted by Femke Hoekstra on Wed, 12/14/2005 - 13:12
Julio Moscoso In: UA Magazine No. 14 - Urban Aquatic Production
The Treatment and Use of Sewage Water programme started at CEPIS twenty years ago in order to contribute to increasing the sewage water treatment network in the region using technologies that would allow for the removal of pathogenic organisms as well as organic materials. So far, CEPIS and the various Peruvian institutions have carried out a series of experiments on the treatment and use of sewage water at the Bio-Ecological Complex in San Juan, south of Lima, Peru.
Submitted by Femke Hoekstra on Wed, 12/14/2005 - 13:07
Wim van der Hoek, Vuong Tuan Anh, Phung Dac Cam, Chan Vicheth and Anders DalsgaardIn: UA Magazine No. 14 - Urban Aquatic Production
The major challenge in sustainable use of wastewater in agriculture and aquaculture is to optimise the benefits of wastewater as a resource (both the water and the nutrients it contains) and to minimise the negative impacts on human health. Epidemiological studies in different countries have established
that the highest risk to human health of using wastewater in agriculture and aquaculture is posed by worm infections.
Submitted by Femke Hoekstra on Wed, 12/14/2005 - 13:05
Peter EdwardsIn: UA Magazine No. 14 - Urban Aquatic Production
Recent field visits of the author to periurban areas in Bangladesh and Vietnam indicate that some wastewater-fed aquaculture systems may have limited prospects, while others prove difficult to extend. The major constraining factor is the limited availability of land in rapidly expanding cities.
Submitted by Femke Hoekstra on Wed, 12/14/2005 - 13:02
Nitai Kundu, Nina Halder, Mousumi Pal, Sharmistha Saha and Stuart W BuntingIn: UA Magazine No. 14 - Urban Aquatic Production
Wastewater aquaculture, as practised in the East Kolkata Wetlands (EKW), has attracted much international attention as a model system for the reuse of urban wastewater and resource recovery. At present the multifunctional wetland ecosystem covers approximately 12,500 ha, and is comprised mainly of 254 fisheries managed for wastewater aquaculture, agricultural land, horticultural plots and residential areas. It constitutes a unique system of resource recovery, in which nutrients are extracted from the city’s wastewater through fish farming and agriculture.
Submitted by Femke Hoekstra on Wed, 12/14/2005 - 12:59
Jonathan Rigg and Albert M SalamancaIn: UA Magazine No. 14 - Urban Aquatic Production
Periurban aquatic food production systems are systems in transition. They are always at the cusp of change, on the point of shifting from one thing to another. New activities, physical features, agencies, institutions, populations and infrastructures colonise the periurban space, and may replace or displace existing peoples, institutions and activities, or lead them to respond and adapt to the evolving situation.
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