Seasonal Variation of the Environmental Parameters along Fort Cochin Beach
Seasonal Variation of the Environmental Parameters along Fort Cochin Beach
Date
2000
Authors
Jayalakshmy, K.V
Raveendran, O
Sreeja, S
Journal Title
Journal ISSN
Volume Title
Publisher
Society of Fisheries Technologists (India)Cochin
Abstract
Monthly observations on heterotrophic bacteria, organic carbon, temperature, salinity,
dissolved oxygen, inorganic phosphate, nitrate, nitrite and ammonia from surface water and
from water table level during high tide, mid tide and low tide were carried out in the Fort
Cochin beach for a period of one year. Also, monthly observations on heterotrophic bacteria,
organic carbon and temperature were carried out for the same period from sand during the
three tidal levels at surface and water table level. The study showed that organic carbon
in sand controlled the bacterial population to a great extent during high tide at surface and
during low tide at water table level. Step-up multiple regression analysis showed that in
water the interaction effect of inorganic phosphate and ammonia and that of ammonia and
temperature were the most important parameters controlling the bacterial production whereas
in the sand at the surface, temperature-organic carbon interaction effect was the controlling
parameter. The results of the Q-mode analysis are also presented.
Description
Keywords
Environmental parameters, heterotrophic bacteria, seasonal changes, Fort Cochin beach
Citation
Fishery Tech 37(2):98-108