ECONOMIC IMPACT ASSESSMENT OF DECLINE IN BIVALVES PRODUCTION ON BIVALVES COLLECTORS IN AGHANASHINI ESTUARY
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Date
2017-08-21
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UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU
Abstract
The study was undertaken to assess the economic impact of decline in bivalves
production on bivalves collectors in Aghanashini estuary of Uttara Kannada districts,
Karnataka State. The data was collected from randomly selected 120 bivalves collectors
and 30 marketing intermediaries. The results revealed that, the percentage of households
involved bivalves collection has radically decreased from 95 per cent during 2012-13 to
38.33 per cent during 2016-17. The quantity of bivalves harvested has been reduced from
289 kg/day/family to 29 kg/day/family during 2012 to 2017. The average cost of
harvesting bivalves per kg was 2.36 during 2012-13 which been increased 33.03/kg in
2016-2017. On an average, a family was generating income of . 3,19,056/year during
2012-13 has been declined to 63,945 during 2016-17. Across different marketing
channel, marketing cost was highest in Channel-III ( .17.07/kg) and it was lowest in
Channel-I ( .10.05/kg). Further, highest price spread was observed in channel–III
( 76.46/kg) as against zero in channel–I. Because of decline in bivalves production,
bivalves collectors were shifted to other alternative livelihoods, wherein maximum
dependency (71 %) was observed on construction work, maximum number of days of
employment provided by cashew factory (325 days), and maximum per capita annual
income was generated from marine fishing ( 1,20,589/year). Given these facts,
identification and addressing threat factors for bivalve fisheries is the need of an hour for
formulating strategies to restore the resources.
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