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Now showing items 11-20 of 28
Estuarine characteristics of the lower reaches of the River Periyar (Cochin backwater)
(CSIR-NISCAIR, 1986)
Lower reaches of river Periyar were studied to assess longitudinal extent of salt water intrusion into the system during different seasons and also its effect on the flushing of pollutants introduced by the industries. ...
Variations of dissolved oxygen in Mandovi and Zuari estuaries
(CSIR-NISCAIR, 1986)
During non-monsoon months the estuaries were well mixed showing uniform oxygen concentrations from surface to bottom. However, during monsoon months both the estuaries showed stratified conditions with surface water showing ...
Atypical behaviour of dissolved silicate in the Cochin backwater and Periyar river
(CSIR-NISCAIR, 1984)
Dissolved silicate was determined for 1 y (1982-83) covering a wide range of salinity from the estuarine mouth to the fresh water region. Silicate concentration ranged between 0.03 and 4.75 mgl/1. Silicate-salinity ...
Environmental conditions of some paddy cum prawn culture fields of Cochin backwaters, southwest coast of India
(CSIR-NISCAIR, 1988)
Temperature, salinity, pH, dissolved oxygen, inorganic phosphate, ammonia, nitrate and nitrite of seasonal and perennial prawn culture fields from 3 areas of Cochin backwaters are studied. Area 1 is a region least affected ...
Physical characteristics of the coastal waters between Navapur and Umbharat, West coast of India. Part 2. Vertical homogeneity of temperature and salinity
(Indian Association for Limnology and Oceanography, 1982)
Vertical distribution of temperature and salinity at five stations in the coastal waters off Navapur-Umbharat (Maharashtra-Gujarat coast, India) was studied over different seasons during 1978. The results showed that inspite ...
Ecological Studies on the Seasonal Production of the Edible Oyster, Crassostrea Madrasensis (Preston) in Cochin Backwater, Kerala
(Indian Association for Limnology and Oceanography, 1981)
Seasonal variation in the standing crop of intertidal oyster Crassostrea madrasensis at Ramanthuruth and Vallarpadom in the Cochin backwater for the period July 1974 to December 1975 showed that the maximum yield (whole ...
Tidal Influence on the Seasonal Variation in Current and Salinity around Willingdon Island
(Indian Association for Limnology and Oceanography, 1981)
The general distribution of current and salinity of Mattancherry and Ernakulam channels and the Cochin Harbour mouth, Kerala, India is presented and discussed in relation to the tide. During monsoon season stratification ...
Physical features of Nearshore Waters off Karwar
(CSIR-NISCAIR, 1980)
Very little change in the hydrographic properties with depth during October 1975 to October 1976 was observed except during August-October, when waters of low temperature ( 24 degrees C), high salinity ( 35.5 ppt) and low ...
Benthic Studies in Goa Estuaries. Part 3. Annual Cycle of Macrofaunal Distribution, Production and Trophic Relations
(CSIR-NISCAIR, 1980)
Macrobenthos in Mandovi, Cumbarjua canal and Zuari estuaries, a physically interconnected tropical estuarine system which undergoes large seasonal changes in salinity distribution due to heavy monsoonal precipitation, is ...
Seasonal Variations in Secondary Production of the Mandovi-Zuari Estuarine System of Goa
(CSIR-NISCAIR, 1980)
Mean rates of secondary production in the Mandovi, Zuari and Cumbarjua canal, Goa, India were 16.9, 35.9 and 32.4 mg C/m2/day respectively. The general hydrographic conditions of the Zuari were responsible for the higher ...