Artificial reefs & their placement
Practical Action
Sketch of AR modules
placement rig
rope-and-pulley system is then mounted on
the quadrapod; it must be strong enough (and
the rope long enough) to lift the modules off
the boats (in this case kattumarams) which
have ferried the modules out to the rig, and
lower them onto the seabed. The site for the
reef is chosen by the community, and is
marked out to ensure that it is oriented across
the current.
The rig is anchored over the proposed site
using four anchors. The use of four anchors
permits fairly precise positioning of the rig, and also allows controlled movements to be made
away from the centre of the site. The modules are lifted off the kattumarams one at a time and
lowered, positioning clusters of modules on and around the centre of the site.
Further information
• Artificial Fish Habitats: A community
programme for biodiversity
conservation, John Fernandez.
Programme for Community
Organisation, Kerala, India, 1994.
• Symposium on Artificial Reefs and
AR Modules
Kattumaram
Fish Aggregating Devices as Resource
Enhancement and Fisheries
Management Tools, 14-17 May 1994,
Colombo, Sri Lanka. Papers from the
Information Department, FAO, via
della Terme di Caracalla, Rome, Italy.
• Artificial Reefs for Marine Habitat
Loaded kattumarams
wait to enter the rig
and unload their AR
modules
Enhancement in South-east Asia, A.T.
White et al, ICLARM, 1994. ICLARM
have a great deal of experience and
numerous other publications about
artificial reefs. ICLARM, PO Box
2631, 0718 Makati, Metro Manila,
Philippines.
Anchor
The rig
Empty kattumarams
proceed to the beach for
next load
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