Institute's contributions: Recent submissions
Now showing items 3661-3680 of 9252
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Phytoplankton assemblages and pigments in the exclusive economic zone of Mauritius (Indian Ocean)
(NISCAIR, New Delhi, 1991)Nutrient enrichment studies showed that both inorganic salts of nitrogen and phosphorus were limiting for phytoplankton from the surface waters. This coupled with conditions of high insolation prevailing at this time ... -
A multivariate statistical study with a factor analysis of recent planktonic foraminiferal distribution in the Coromandel Coast of India
(Indian Fisheries Association, 1991)A study of planktonic foraminiferal assemblages from 19 stations in the neritic and oceanic regions off the Coromandel Coast, Bay of Bengal has been made using a multivariate statistical method termed as factor analysis. ... -
Fungi and their biomass in detritus of the seagrass Thalassia hemprichii (Ehrenberg) Ascherson
(Walter de Gruyter, Berlin, 1991)Four different stages of detritus from the seagrass Thalassia hemprichii Ascherson from two coral islands in the Lakshadweep Archipelago, Arabian Sea were examined for the presence of fungi. Direct microscopic examination ... -
Biotechnology for harvesting marine-living resources
(Oxford and IBH, New Delhi, 1991) -
Two simple amine hydrochlorides from the soft coral Lobophytum strictum
(NISCAIR, New Delhi, 1991)Two simple amine hydrochlorides, viz., 1-amino-1, 1-dimethyl-3-oxo-butane hydrochloride (1) (Diacetonamine) and 2, 2, 6, 6-tetramethylpiperidone hydrochloride (2) have been isolated from the fraction of the methanolic ... -
Energy content of suspended detritus from Arabian Sea
(NISCAIR, New Delhi, 1991)Energy components of suspended matter included phytoplankton, zooplankton and detritus inclusive of microorganisms adsorbed to detritus. Of these, detritus contributed most of the energy (98%). The average caloric content ... -
Coastal microbial processes
(Ocean Data Centre, Anna University; Madras, 1991) -
Zooplankton and fisheries
(NIO, Goa, 1991)Zooplankton are considered as the chief index of utilization of aquatic biotope at the secondary trophic level. The intensity of zooplankton aggregation depends on their ability to counter dispersion, phytoplankton growth, ... -
Interdependence of environmental parameters and sand dwelling benthic species abundance: a multivariate approach
(NISCAIR, New Delhi, 1991)Multivariate analysis showed dependence of distribution and abundance of sand dwelling fauna on more than one ecologically significant environmental parameters rather than one ecological master factor. Salinity, grain size, ... -
Marine prostanoids - a review
(Indian Association for Limnology and Oceanography, 1991)The occurrence and structure of prostaglandins including clavulones, punaglandins and claviridenones in marine organisms is reviewEd. by comparison of the spectral data reported the identity of 20-acetoxy claviridenones b ... -
Sulfate-reducing bacteria from mangrove swamps. 2. Their ecology and physiology
(Ifremer/ CNRS/ IRD/ Editions scientifiques et medicales Elsevier SAS. Tous droits reserves, 1991)Sulfate-reducing bacteria (SRB) have been enumerated and physiologically characterized in three mangrove stations along the Zuari Estuary, Goa, India. The substrates for counting were lactate, acetate, propionate, butyrate ... -
Benthic fauna of Kakinada bay and backwaters, east coast of India
(NISCAIR, New Delhi, 1991)Quantitative distribution of macro and meiofauna from Kakinada Bay and backwaters was studied. Total macrofauna abundance (no.m/2) ranged from 67 to 116 and 94 to 186 in the backwaters and near-shore environment respectively. ... -
Destruction of mangrove vegetation by Sphaeroma terebrans along Kerala coast
(Society of Fishery Technologists (India), 1991)Extent of damage causEd. by wood boring isopod crustaceans to mangrove vegetation off Kerala Coast, India has been evaluated in this study, based on a survey and monthly collections from two localities in Cochin backwaters ... -
Effect of pollution on the distribution of chaetognaths in the nearshore waters of Bombay
(NISCAIR, New Delhi, 1991)Chaetognath fauna inhabiting the polluted waters was compared with that of clean waters for evaluating the impact of pollution. Regular observations at 11 locations off Bombay coast indicated a steady decline in chaetognath ... -
Communities and coexistence of benthos in northern limb of Cochin Backwaters
(NISCAIR, New Delhi, 1991)Occurrence and coexistence of benthic communities of 9 stations in the northern limb of Cochin Backwaters (Kerala, India) where an industrial belt (mostly chemical industries) is located are studied. Polychaetes with 30 ... -
Ecology and distribution of recent planktonic foraminifera in eastern part of Arabian Sea
(NISCAIR, New Delhi, 1991)Thirty species of living planktonic foraminifera have been studied from 97 plankton tows collected from the eastern Arabian Sea with an accent on their ecological and distributional aspects. Species density is higher with ... -
Compartmental models for assessing the fishery production in the Indian Ocean
(Wiley, 1991)Compartmental models for assessing the fishery production in the Indian Ocean is discussed. The article examines the theoretical basis on which modern fishery sciences is built. The model shows that, large changes in energy ... -
Bioecology of subtidal region
(Society for Marine Archaeology, Goa, 1991) -
Sperm density required for inducing gynogenetic haploidy in scallop Chlamys nobilis
(NISCAIR, New Delhi, 1991)Experiments conducted for standardizing sperm density for artificial insemination and inducing gynogenesis by ultra-violet rays irradiated sperms in Chlamys nobilis showed that 10:1 ratio of sperms to eggs, gave maximum ...