Nutrients of the Cochin Backwater in relation to environmental characteristics

✍ Scribed by V. N. Sankaranarayanan; S. Z. Qasim

• Publisher: Springer-Verlag
• Year: 1969
• Tongue: English
• Weight: 868 KB
• Volume: 2
• Category: Article
• ISSN: 0025-3162
• DOI: 10.1007/bf00351146

✦ Synopsis

The nutrient distribution of the Coohin Backwater was s~udied at 6 stations throughout the year. The depth profiles of phosphorus (inorganic and organic), nitrogen (nitrate and nitrite) and silicon, showed a marked soa~n~l rhythm, induced by the local precipitation and land runoff. Changes in other environmental festure8 such as temperst~re, salinity, dissolved oxygen, pH and alkalinity were small during the premonsoon period when the system remains marine-dominated, and large during the monsoon period when the estuary becomes freshwater-dominated. Sea~n~l changes in the hydrographic~l conditions of the adjoining coastal waters of the Arabian Sea which influence the backwater system have been discussed.