Please use this identifier to cite or link to this item: http://nopr.niscair.res.in/handle/123456789/38746
Title: Urea as Nitrogen Source for Phytoplankton Production in Coastal Waters of Goa
Authors: Verlencar, X N
Issue Date: Jun-1985
Publisher: NISCAIR-CSIR, India
Abstract: Annual variation of urea in coastal waters off Goa, India is 0 to 2.92 mu g-at N.1/1 and 0 to 4.69 mu g-at N.1/1 in adjacent estuarine waters of Mandovi. Peaks of phytoplankton production accompanied with the decrease in urea in June and October, when ammonia and nitrate were high, indicate that urea is utilised or decomposed by phytoplankton organisms. Seasonal fluctuation of urea is between 7 and 55U+0025 of total utilizable nitrogen, which is a large reserve of nitrogen for phytoplankton growth. Assimilation ratio (delta N: P) indicates that nitrate is in short supply. However, urea available in these waters can substitute nitrogen deficiencies for the high rate of phytoplankton production.
Page(s): 93-97
URI: http://nopr.niscair.res.in/handle/123456789/38746
ISSN: 0975-1033 (Online); 0379-5136 (Print)
Appears in Collections:IJMS Vol.14(2) [June 1985]

Files in This Item:
File Description SizeFormat 
IJMS 14(2) 93-97.pdf352.26 kBAdobe PDFView/Open


Items in NOPR are protected by copyright, with all rights reserved, unless otherwise indicated.