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Spatial characterization of commercial fishing catch rate of Tenualosa Ilisha in Hooghly-Matlah estuary of India: a geostatistical appraisal

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Title Spatial characterization of commercial fishing catch rate of Tenualosa Ilisha in Hooghly-Matlah estuary of India: a geostatistical appraisal
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Creator Sanjeev Kumar Sahu
Jatisankar Bandyopadhyay
Malay Naskar
 
Subject Variogram
Kriging
Geostatistics
Commercial vessel
Hooghly-Matlah estuary
India
 
Description Not Available
Geostatistical method, which involved variogram and kriging, was applied to the geo-referenced catch and effort data collated from the logbook of five randomly selected vessels. Variogram analysis unraveled systematic spatial structure of catch rates of the species. No spatial dependence of catch rate was observed beyond the distance of 17.43 km. Kriging method predicted three regions of high, medium and low catch rates. Even though vessels’ logbook data was criticized for preferential sampling bias, we established here that application of geo-statistical tools to the same became useful in the present study.
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Date 2018-12-04T09:53:53Z
2018-12-04T09:53:53Z
2018-01-01
 
Type Article
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/15577
 
Language English
 
Relation Not Available;
 
Publisher CSIR-NISCAIR