DRS at CSIR-National Institute of Oceanography: Recent submissions
Now showing items 2771-2790 of 9376
-
Primary productivity and nitrogen fixation by Trichodesmium spp. in the Arabian Sea
(Elsevier, 2012)Trichodesmium was studied with the purpose of understanding its distribution, organic production and nitrogen fixation in the Arabian Sea. Out of the 143 stations sampled, a total of 93 stations showed the presence of ... -
Geochemical and geological constraints on the composition of marine sediment pore fluid: Possible link to gas hydrate deposits
(Elsevier, 2012)Pore water sulfate consumption in marine sediments is controlled by microbially driven sulfate reduction via organo-clastic and methane oxidation processes. In this work, we present sediment pore fluid compositions of 10 ... -
Extreme sea-level events in coastal regions
(Current Science Association, 2012)Underlines the need for documentation of the adaptation practices from previous extreme events for handling future exigencies in the coastal regions. -
A new species of Litarachna Walter, 1925 (Acari: Hydrachnidia) from the West Indian Coast, with a discussion on the diversity of the family Pontarachnidae Koenike, 1910
(Station Biologique de Roscoff, 2012)Litarachna indica, a new species of the marine water mite family Pontarachnidae (Acari: Hydrachnidia) is described from the tropical West Indian coast. The total number of Pontarachnidae species worldwide tallies exactly ... -
Phosphate solubilizing bacteria and alkaline phosphatase activity in coastal waters off Trivandrum
(Centre for Ocean and Environmental Studies, New Delhi, 2012)Phosphorus is a key nutrient in marine environment. Phosphate solubilising bacteria (PSB) have the ability to solubilise ionic forms of orthophosphoric acid to free form of phosphrous in the water column. Both PSB and ... -
Monsoonal variability in abiotic parameters in coastal waters off Trivandrum evokes press and pulse response in biotic variables
(Centre for Ocean and Environmental Studies, New Delhi, 2012)Trivandrum Coast experiences coastal upwelling during south west monsoon, which is accompanied by abiotic changes in physio-chemical parameters. The resultant biotic responses could range from an instantaneous pulse to a ... -
Glacially derived material in an Inner Mongolian desert lake during Marine Isotope Stage 2
(John Wiley, 2012)Establishing the precise timing of continental glacial dynamics and abrupt high-latitude climate events is crucial to understanding the causes of global climate change. Multi-proxy records in a lake sediment core from arid ... -
Record of bi-operculate fouling serpulid polychaete, Hydroides operculatus (Treadwell, 1929) from Diu, west coast of India
(CSIR-NISCAIR, 2012)The bi-operculate form of fouling serpulid polychaete, Hydroides operculatus Treadwell, 1929 was studied. This variant was found in samples collected from Diu, North West coast of India. A perusal of literature indicates ... -
Effect of temperature, salinity and biofilm on the zoospores settlement of Enteromorpha flexuosa (Wulfen) J.Agardh
(CSIR-NISCAIR, 2012)The effect of temperature (10-30 degrees C), salinity (15-35 psu) and biofilm on the settlement of Enteromorpha flexousa zoospores was assessed. Settlement of zoospores was significantly (p less than 0.05) influenced by ... -
Tide dependent seasonal changes in water quality and assimilative capacity of anthropogenically influenced Mormugao harbour water
(CSIR-NISCAIR, 2012)Water quality data from Mormugao harbour area at the mouth of Zuari estuary in Goa have been obtained over two tidal cycles monthly for the year 2003 to 2004. R-mode factor analyses of the data indicated strong positive ... -
Study of ecological consequence of the bloom (Noctiluca miliaris) in off shore waters of the Northern Arabian Sea
(CSIR-NISCAIR, 2012)Ship based observations during early March 2007 in oceanic waters of the Northeastern Arabian Sea followed by phytoplankton analysis indicated that the bloom Noctiluca miliaris, species of dinoflagellate, dominated oceanic ... -
Is an onset vortex important for monsoon onset over Kerala?
(Springer, 2012)Inter-annual variability in the formation of the mini warm pool [sea-surface temperature (SST) more than 30 degrees C] over the south eastern Arabian Sea (SEAS) and its role in the formation of the monsoon onset vortex ... -
Three genetic stocks of frigate tuna Auxis thazard thazard (Lacepede, 1800) along the Indian coast revealed from sequence analyses of mitochondrial DNA D-loop region
(Taylor & Francis, 2012)Frigate tuna Auxis thazard thazard is a cosmopolitan species and one of the smallest members of the tribe Thunnini (the true tunas), and currently managed as a single stock. Genetic variation of this species was surveyed ... -
Estimation of flushing time in a monsoonal estuary using observational and numerical approaches
(Springer, 2012)Estimation of flushing time (T sub(F)) in an estuary is important for water quality analysis, and it is one of the major transport time scales used in estuaries to quantify the hydrodynamic processes and for water resources ... -
Metabolism of DMSP, DMS and DMSO by the cultivable bacterial community associated with the DMSP-producing dinoflagellate Scrippsiella trochoidea
(Springer, 2012)Bacterial species associated with the dimethylsulfoniopropionate (DMSP)-producing phytoplankton Scrippsiella trochoidea were cultured and identified, with the aim of establishing their ability to metabolise DMSP, dimethylsulfide ... -
Production of dimethylsulphide during the seasonal anoxia off Goa
(Springer, 2012)Subsurface waters over the western Indian continental shelf experience seasonal anoxia towards the end of the southwest monsoon season. During a 3-day study carried out at the Candolim time series site (off the coast of ... -
SEM–EDS analysis of copper, glass and iron recovered from the 1st century AD shipwreck site off Godawaya, Southern Sri Lanka
(Current Science Association, 2012)Recent maritime archaeological explorations conducted at a shipwreck site in the offshore regions of Godawaya, a fishing village on the south coast of Sri Lanka led to the retrieval of several artifacts such as copper slag, ... -
Seabed habitat mapping employing single and multi-beam backscatter data: A case study from the western continental shelf of India
(Elsevier, 2012)Acoustic backscatter from multi-beam echo-sounder (MBES) and dual-frequency single-beam echo-sounding systems (SBES) operable at 95 kHz and 33/210 kHz, respectively, were used to study the distribution of sediment texture ... -
Coastal circulation along the central west coast of India during cyclone Phyan: measurements and numerical simulations
(Springer, 2012)Measurements and numerical simulations carried out off Mumbai coast for the period 22 October to 22 November 2009 showed significant variations in water level and currents during cyclone Phyan. Changes in the meridional ... -
Compositional variation recorded in deep-sea ferromanganese deposits of the Central Indian Ocean
(Current Science Association, 2012)Traditionally, the genesis of marine ferromanganese deposits (abyssal nodules and seamount crusts) has been discussed mostly based on their bulk composition. But, marine ferromanganese deposits are products of an intimate ...