Browsing by Subject "salinity"
Now showing items 81-100 of 129
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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 ... -
Physical oceanography
(Oxford and IBH, New Delhi, 2001)The chapter on physical oceanography of the Indian Ocean is written keeping in mind the graduate students and researchers. It starts with a brief introduction (citing latest expeditions) followed by the coastal and near ... -
Phytoplankton distribution in the coastal waters off Porbandar (Saurashtra)
(Indian Fisheries Association, 1988)Skeletonema costatum was the most abundant species in all the 3 stations. The distribution of Asterionella japonica was least consistent than that of Nitzschia closterium which was most consistent at Station 1. At station ... -
Picophytoplankton community in a tropical estuary: Detection of Prochlorococcus-like populations
(Elsevier, 2012)The influence of hydrography on the picophytoplankton (PP) abundance in estuaries was studied by sampling along a salinity gradient in an Indian estuary. Prochlorococcus-like cells were detected at salinities ranging from ... -
Plankton of the Narmada Estuary and Adjacent Creeks
(Indian Association for Limnology and Oceanography, 1981)Phytoplankton pigments and abundance of zooplankton in the Narmada Estuary, Bukki Creek and Dahej Creek were studied from March to September, 1979. The river sustained an appreciable quantity of phytoplankton pigments with ... -
Population dynamics of estuarine amphipods in Cochin backwaters
(Inter-Research, 1983)Population dynamics of 11 gammarid amphipod species (belonging to 9 genera), collected from Cochin backwaters, have been studied for the first time, based on an year round collection. The species are : Corophium triaenonyx ... -
Postglacial Indian Ocean
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Proloculus size variation in Recent benthic foraminifera: Implications for paleoclimatic studies
(Elsevier, 1987)Ratios of dimorphic (microspheric/megalospheric) forms of Foraminifera are affected by temperature and hence are useful in paleoclimatic studies. In some cases, however, it is not possible to distinguish between the dimorphic ... -
Propagation of tides in the Mandovi-Zuari estuarine network
(ICMAM-PD, Chennai (India), 1999)The propagation of tides in the Mandovi-Zuari estuarine network was studied based on the hydrographic observations; mathematical modelling; and chemistry of estuaries. The data was collected during the dry and wet season. ... -
Quaternary radiolarian faunal changes in the tropical Indian Ocean: Inferences to paleomonsoonal oscillation of the 10 degrees S hydrographic front
(Current Science Association, Bangalore, 1997)The northern Indian Ocean is characterized by three distinct surface water masses, i.e. (1) highly saline (greater than 34.5 ppt) Arabian Sea, (2) low saline (less than 34.5 ppt) Bay of Bengal and (3) a moderate salinity ... -
Radiolarian monsoonal index Pyloniid group responds to astronomical forcing in the last approx. 500,000 y ears: Evidence from the Central Indian Ocean
(Indian Society for Prehistoric and Quaternary Studies, 1999)Pyloniid radiolarians, oceanic micro-zooplanktons (surface water dwelling), are sensitive to monsoon sea surface temperature and salinity, and their variation down a core may provide an insight into the proxy climatic ... -
Reproductive behaviour of benthic foraminifera: A key to palaeoclimate
(Indian Academy of Sciences, Bangalore, 1988)Many benthic foraminiferal species exhibit dimorphism associated with reproduction. The two resultant forms are known as microspheric and megalospheric forms. Culture studies, though limited in number, show that ratios of ... -
Resolving orographic rainfall on the Indian west coast
(Royal Meteorological Society, 2008)We discuss a method to obtain the spatial estimates of rainfall on the Indian west coast for calculating the surface water budget. The region includes the basin of the Mandovi River, a typical west-coast river whose catchment ... -
Role of salinity in structuring the intertidal meiofauna of a tropical estuarine beach: Field evidence
(NISCAIR, CSIR, 1998)Community structure of meiofauna was studied for 12 months (July 1991-June 1992) on an estuarine intertidal beach at Siridao, Goa (India). The temperature of the surf zone water ranged from 26.5 degrees to 30.7 degrees C; ... -
Role of salinity on food conversion efficiency and growth in juvenile penaeid shrimp Metapenaeus dobsoni (Crustacea/Arthropoda)
(NISCAIR, CSIR, 1997)Growth parameters of juvenile Metapenaeus dobsoni, fed with fresh squid meat were estimated in 5, 15, 25 and 35 ppt salinities for 4 weeks. Although no significant differences were noticed in food ingestion rates, higher ... -
Salinity-induced survival strategy of Vibrio cholerae associated with copepods in Cochin backwaters
(Elsevier, 2006)The occurrence of Vibrio cholerae in water, sediment and copepods was studied over a wide range of salinity using conventional and polymerase chain reaction (PCR) techniques in the Cochin backwaters. V. cholerae occurred ... -
Salt intrusion study in Cochin estuary - Using empirical models
(CSIR-NISCAIR, 2013)Intensive measurements of salt intrusion are taken at high and low waters during spring and neap tide for each month respectively from June 2007 to May 2008. Salt intrusion length at high water varied from 10 km in monsoon ... -
Seasonal fluctuation in the distribution of eggs and larvae of flat fishes (Pleuronectiformes - Pisces) in the Cochin Backwater
(Indian Fisheries Association, 1993)Attempts have been made to correlate the abundance of eggs and larvae of flat fishes belonging to families Cynoglossidae and Soleidae with the hydrographical parameters of the environment, particularly the salinity. The ... -
Seasonal patterns of phytoplankton biomass and productivity in a tropical estuarine complex (west coast of India)
(Indian Academy of Sciences, Bangalore, 1989)Phytoplankton cell numbers and chlorophyll a determinations were made during the premonsoon, monsoon and postmonsoon periods in the Mandovi-Zuari estuarine complex (west coast of India). Primary productivity estimates ... -
Seasonal variation of the salinity in the Zuari estuary, Goa
(Indian Academy of Sciences, Bangalore, 1987)The annual salt budget of the Zuari is examined. The characteristics of the estuary differ markedly from the low run off season during November - May to the heavy run off period of the southwest monsoon from June to October. ...