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Title: A preliminary assessment of ecosystem process and marine litter in the beaches of Mangalore
Authors: Sulochanan, Bindu
Bhat, G.S.
Lavanya, S.
Dineshbabu, A.P.
Kaladharan, P.
Keywords: Marine litter;River discharge;Tides;Wind velocity
Issue Date: Sep-2014
Publisher: NISCAIR-CSIR, India
Abstract: Ecosystem process contributing to the marine litter was assessed by conducting beach litter survey in the beaches of  Mangalore followed by gut analysis of oil sardine (Sardinella longiceps) and mackerel (Rastrelliger kanagurta).  Gurupur and Nethravathi had the highest discharge of 28.1 cumecs and1331.2 cumecs respectively in Aug 2012. There was highly significant negative correlation with the sea level pressure (p<0.001) and discharge of both Nethravathi and Gurupur rivers.  Maximum total number and weight of marine litter was observed in  Thannerbhavi (632 numbers /m2)  and Chitrapur (10,923.05g/ m2) beaches respectively.  Group of litter comprising nylon and plastic rope was the most abundant in the beaches.  Oil sardine and mackerel caught off Manglore had ingested fragments of nylon and plastic. Significant correlation (p<0.05) was observed between the discharge of Nethravathi and Gurupur river with the total weight and number of marine litter indicating that river discharge brought with it the marine litter.
Page(s): 1764-1769
ISSN: 0975-1033 (Online); 0379-5136 (Print)
Appears in Collections:IJMS Vol.43(09) [September 2014]

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