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| | Fish production in irrigation canals A review (Site not responding. Last check: 2007-11-05) |
 | | Owing to the extensive collection of data on primary production and fish populations in reservoirs and rivers, it has been possible to formulate models which, given certain parameters, can be used to predict fishery yields or fish production in these environments (see Beveridge, 1984). |
 | | In the case of reservoirs, this may provide a rich source of allochthonous energy to the canal, in the form of plankton. |
 | | The shallows and deeps which characterise natural rivers and contribute significantly to their diversity of habitats and species, are not present in irrigation canals, bankside and littoral vegetation is often discouraged, and the benthic fauna is reduced (Aliyev, 1976). |
| www.fao.org /DOCREP/003/T0401E/T0401E06.htm (1284 words) |
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