Distribution of particulate carbohydrate species in the Bay of Bengal

Autor:	V. V. Gopalkrishna, Narayan B. Bhosle, Vishwas B. Khodse
Rok vydání:	2009
Předmět:	chemistry.chemical_classification Total organic carbon Chlorophyll a chemistry.chemical_element Particulates Nitrogen chemistry.chemical_compound Oceanography chemistry Environmental chemistry Phytoplankton General Earth and Planetary Sciences Organic matter Seawater Bay
Zdroj:	Journal of Earth System Science. 118:147-156
ISSN:	0973-774X 0253-4126
Popis:	Suspended particulate matter (SPM) of surface seawaters was collected during December 2003 to October 2004 at 10 stations in the Bay of Bengal, and analyzed for particulate organic carbon (POC), total particulate nitrogen (TPN), total particulate carbohydrate (TPCHO) and total particulate uronic acids (TPURA). The concentrations of POC, TPCHO and TPURA varied from 4.80 to 29.12, 0.85 to 4.24, 0.09 to 0.91 µM C, respectively. The TPCHO-C and TPURA-C accounted for 6.6–32.5% and 0.87–3.65% of POC. The trends observed for the distribution of these compounds were generally similar to those recorded for the distribution of chlorophyll a (Chl a). The C/N ratios varied from 3.2 to 22.3 with most of the values being < 10. This suggests that the organic matter was mostly derived from phytoplankton and bacteria. Relatively low C/N ratios and high TPCHO yield imply that freshly derived organic matter was present during SWM and FIM. Our data suggest that the quality and quantity of organic matter varied spatially and seasonally.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::4a3cb17e8111190086db0cd5885433da https://doi.org/10.1007/s12040-009-0021-x Zobrazit plný text záznamu Full text from SpringerLink