Sujatha, C H; Naduvilaveettil, Sukumaran Kalesh; Muraleedharan, Nair S(The Oceanographic Society of Japan, September 1, 2000)
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Abstract:
Information on the distribution of dissolved Folin phenol active substances (FPAS)
such as tannin and lignin in the seawater along the west coast of India is provided.
Notable amounts of FPAS (surface concentrations: 80 f.1gll to 147 f.1gll and bottom
concentrations: 80 f.1gll to 116 f.1gll) were detected in the seawater along the coast. The
distribution pattern brings about a general depth-wise decrease. A seaward decrease
was observed in the southern stations whereas reverse was the case in northern stations.
A significant negative correlation was observed between FPAS concentration
and dissolved oxygen in sub-surface samples. The appreciable amounts of FPAS detected
in the coastal waters indicate the presence of organic matter principally originating
from terrestrial (upland and coastal marsh) ecosystems in the marine environment.
In this context, they may be used as tracers to determine the fate of coastalborn
dissolved organic matter in the ocean and to determine directly the relationship
between allochthonous and autochthonous organic matter
Description:
Journal of Oceanography, Vol. 57, pp. 29 to 36, 2001