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<smarttagtype namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="place" downloadurl="http://www.5iantlavalamp.com/"> Prediction and modelling of marine fishery yields from the Arabian Sea off Karnataka using Ecosim </smarttagtype>

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Title Prediction and modelling of marine fishery yields from the Arabian Sea off Karnataka using Ecosim
 
Creator Mohamed, K.S.
Zacharia, P.U.
 
Subject Species
Shrimp
Predator
Ecosim
Biomass
 
Description 69-76
Ecosim simulation exercise was carried out for predicting over 10 years the changes in fishery yields in the multi-species and multi-gear marine fisheries of the Arabian Sea off Karnataka. The present study elucidates that in all the gears (multiday and single day trawl; purse seine, drift gillnet, hook and line and artisanal) the key resources such as mackerel, sardines, seerfishes, tunas, sharks and skates and rays showed rapid decline in yields within 5 years due to a consistent increase in fishing effort (@ 17% per annum). The shrimp yields showed an increasing trend in trawls as they seem able to sustain the high fishing pressure as long as their predators are also harvested. In all gears excepting hook and line, there is no ecological and economic advantage in increasing the fishing effort. Also increasing the effort can result in rapid declines of many important marine resources. This will have a serious effect on the ecosystem functioning. Attempt has been made to model changes in the marine ecosystem due to fishing as part of the effort to move towards ecosystem based fisheries management. This is the pioneer effort for the same.
 
Date 2009-05-22T05:28:26Z
2009-05-22T05:28:26Z
2009-03
 
Type Article
 
Identifier 0379-5136
http://hdl.handle.net/123456789/4246
 
Language en_US
 
Publisher CSIR
 
Source IJMS Vol.38(1) [March 2009]