In this issue:

  • Current status of freshwater cage aquaculture in India.
    Kalidoss Radhakrishnan, Samaraj Aanand, P. Padmavathy and Ipsita Biswas
  • Fattening of mud crab Scylla serrata in estuarine region of south-eastern West Bengal.
    Subrato Ghosh
  • Aquaponics: Sustainable farming method in the right against hunger.
    Rajinder Kaur
  • Aquatic invasive apple snails (Pomacea spp.) in Timor-Leste: Current status, spread and management in rice fields.
    Americo Alves Brito, Ravindra C. Joshi and Soetikno S. Sastroutomo
  • NACA Newsletter.

Creative Commons Attribution.

Related

Aquaculture Asia Magazine

Aquaculture Asia Magazine is an autonomous publication that gives farmers and scientists in developing countries a voice. Stories concern the small-scale aquaculture prevalent in the region and the circumstances of farmers trying to make ends meet in an increasingly globalised world. We accept articles on any aspect of aquaculture and the related processing, marketing, economic, environmental and social issues. An RSS feed is available if you wish to stay informed of new issues.

In this collection

Current status of freshwater cage aquaculture in India: Towards blue revolution

Initial attempts to develop freshwater cage aquaculture in India focussed on air breathing catfish and Indian major carps in the Yamuna and Ganga rivers, with later efforts in several large reservoirs. Cage-based aquaculture in inland waters is currently being promoted by some state governments with a view to enhancing fish production. This article examines the history of cage aquaculture in India and some of the factors to be considered in cage design and site selection.

Fattening of mud crab Scylla serrata in estuarine region of south-eastern West Bengal, India

Live mud crab has a high export value and good overseas demand. Over the past fifteen years exports from India have increased, with the introduction of crab fattening practices. Wild-caught seed are held in pens constructed of bamboo screens for several weeks and fed to increase their body weight and hence value. Fattened crabs are onsold to traders exporters, who may air lift them to Singapore and other regional markets for the live restaurant trade.

Aquaponics: Sustainable farming method in the fight against hunger

Aquaponics is a closed-loop system in which the waste water produced from a tank of fish is used as fertiliser to feed a bed of vegetation. In turn, the plant life filters the water through its roots and the cleaned water is returned to the fish tank for reuse. Aquaponics is a form of integrated food production system in which the wastes from one production compartment are used as inputs for others.

Aquatic invasive apple snails (Pomacea spp.) in Timor-Leste: Current status, spread and management in rice fields

Anecdotal evidence suggests that apple snails were first introduced into Timor-Leste as food by migrants, although there is no exact information on when this occurred. The first reported damages to rice crops from the snails was around 1985 in the south and west. There is an urgent need for systematic surveys on the areas invaded and the rice crop losses. Synthetic molluscicide formulations are used to control snail populations, along with a variety of non-chemical management interventions.