Browsing by Subject "vertical distribution"
Now showing items 1-20 of 54
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A quantitative analysis of fine scale distribution of intertidal meiofauna in response to food resources
(NISCAIR, CSIR, 1996)Fine scale vertical and spatial distribution of meiofauna in relation to food abundance was studied in the intertidal sediment at Dias Beach. The major abiotic factors showed significant changes and progressive fine scale ... -
An incidence of very high phosphate concentrations in the waters around Andaman Islands
(Current Science Association, 1968)Abnormally high concentrations of inorganic phosphates were encountered in the samples collected from the vicinity of the Andamans, during the cruises of INS kistna in September 1963, as a part of IIOE. Samples for analysis ... -
Bathymetric distribution of Pleuromamma (Copepoda, Calanoida) species in the Indian Ocean
(ICAR, New Delhi, 1991)Based on the analysis of 204 zooplankton samples from the stratified depths in the Indian Ocean collected during the International Indian Ocean Expedition (IIOE), the distribution of the genus Pleuromamma indica, P. gracilis, ... -
Benthic macrofauna of the Andaman Sea
(CSIR-NISCAIR, 1981)Macrobenthic fauna in the depth range 11 to 2150m comprised 22 faunal taxa. Of these, the polychaetes were the most dominant group and contributed 76.8%. Distribution of macrofauna was substrate specific with maximum (410m ... -
Benthic macroinvertebrate community structure and distribution in the Ayeyarwady continental shelf, Andaman Sea
(NISCAIR (CSIR), 2012)Quantitative assessment of macrofaunal community of Ayeyarwady continental shelf, Andaman Sea was studied during April-May 2002. About 27 major taxa were identified. Abundance of fauna was in the order of polychaetes ... -
Benthos off Cochin, Southwest coast of India
(CSIR-NISCAIR, 1987)Macro-invertebrate benthic fauna off Cochin mainly composed of polychaeta (82.45%), crustacea (7.62%), mollusca (5.92%), sipuncula (2.25%), nemertinea (0.96%) and echinodermata (0.80%). The maximum population density and ... -
Carbon dioxide and nitrous oxide in the Arabian Sea
(American Geophysical Union, 1993)This review concentrates on some aspects of biogeochemical cycling of carbon and nitrogen in the Arabian Sea with emphasis on the atmospheric fluxes of CO sub(2) and N sub(2)O. The Arabian Sea appears to serve as a net ... -
Characteristics of coastal waters of the western Bay of Bengal during different monsoon seasons
(CSIRO, Australia, 1992)Physical characteristics of waters along the eastern coast of India up to offshore distances of 400 km have been investigated during the seasons of the north-easterly and south-westerly monsoons in light of relevant observed ... -
Chemical oceanography of the Arabian Sea Part iv Laccadive sea
(CSIR-NISCAIR, 1979)Data collected during the 10th (October 1976) and 31st (March-April 1978) cruises of R V Gaveshani suggest that water movements, considered typical of island-arc regions, are responsible for high levels of productivity ... -
Chemical oceanography of the Arabian Sea: Part 1 - Hydrochemical and hydrographical features of the Northern basin
(CSIR-NISCAIR, 1975)Three water masses in the Arabian Sea have been identified from their physical and chemical characteristics: (i) water mass which originates in the surface layer and has high salinity,low oxygen and high pH ; (ii) water ... -
Chemical oceanography of the Arabian Sea: Part II - Equilibrium of inorganic nitrogen system
(CSIR-NISCAIR, 1975)The concept pE, expressed as a dimensionless quantity to study the redox potential of a system at equilibrium, is applied to study the chemistry of the system NO-<sub>3</sub>-NO-<sub>2</sub>NH+<sub>4</sub> in the northern ... -
Chemical oceanography of the Arabian Sea: Part III - Studies on nutrient fraction and stoichiometric relationship in the Northern and the Eastern Basins
(CSIR-NISCAIR, 1976)Phosphorus and inorganic nitrogen compounds have been divided into 'reserved' andoxidative fractions based on their relationships with apparent oxygen utilization in the northern and the north-eastern basins of the Arabian ... -
Chemical oceanography of the Arabian Sea: Part vi - Relationship between nutrients and dissolved oxygen in the central basin
(CSIR-NISCAIR, 1986)Inorganic nitrate and phosphate relationships with apparent oxygen utilization (AOU) in the Central Arabian Sea were studied using data collected during 103 cruise of R V Gaveshani (Feb. 1982). The consolidated ratio of ... -
Chlorophyll a, Phaeopigments and particulate Organic Carbon in the Northern and Western Bay of Bengal
(CSIR-NISCAIR, 1982)Distribution of chl a at surface closely corresponds to the surface flow patterns. Integral mean concentration (IMC) of chl a in inshore waters (depth 200 m) is double than that in the offshore waters (depth 200 m) while ... -
Community structure of meiobenthos from a tropical estuary
(NISCAIR, CSIR, 1998)Meiofaunal samples were collected from 3 stations, located in the salinity gradient of Zuari Estuary of Goa. Spatially the abundance of meiofauna decreased from lower to upper reaches and followed the trend of salinity ... -
Determination of vertical velocities in the equatorial part of the western Indian Ocean
(CSIR-NISCAIR, 1985)Using steady state two-dimensional turbulent diffusion equations of salt and heat some important characteristics of vertical circulation in the equatorial part of the Indian Ocean have been evaluated and discussed. Upwelling ... -
Dissolved and Particulate lipids in the Arabian Sea off Bombay coast
(CSIR-NISCAIR, 1987)Concentrations of dissolved lipid ranged from 20-140 mu g.l-1 in the surface and 30-150 mu g.l in near bottom waters while particulates lipid varied from 6-109 and 29-133 mu g.l-1 respectively in surface and bottom waters. ... -
Dissolved carbohydrate in the central Arabian Sea
(CSIR-NISCAIR, 1987)Seawater samples (161), collected from 8 depths (0 to 1000 m) at 21 stations were analysed for total dissolved carbohydrate. Dissolved carbohydrate concentrations varied from 0.072 to 1.15 mg.l-1. Carbohydrate concentrations ... -
Distribution and species composition of planktonic luminous bacteria in the Arabian Sea
(CSIR-NISCAIR, 1987)Distribution of the total viable heterotrophic bacteria and the luminous bacteria in the neretic and oceanic waters of the west coast of India was studied. Counts of viable heterotrophs fluctuated widely, generally with a ... -
Distribution of algae, seagrasses, and coral communities from Lakshadweep islands, eastern Arabian Sea
(CSIR-NISCAIR, 1987)Marine algae, seagrasses and coral from the intertidal, lagoon, reef and subtidal regions (up to 22 m depth) at Kavaratti, Agatti, Bangaram and Suheli islands, of Lakshadweep were studied Marine algae and seagrasses were ...