Browsing by Author "Achuthankutty, C.T."
Now showing items 41-60 of 109
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Hydrographic characterization of southeast Arabian Sea during the wane of southwest monsoon and spring intermonsoon
VimalKumar, K.G.; DineshKumar, P.K.; Smitha, B.R.; Rahman, H.H.; Jacob, J.; Muraleedharan, K.R.; Sanjeevan, V.N.; Achuthankutty, C.T. (Springer, 2008)Seasonal variation of the hydrography along the southeast Arabian Sea is described using data collected onboard FORV Sagar Sampada in September-October 2003 (later phase of Southwest monsoon, SWM) and March-April 2004 ... -
Hydrography and biogeochemistry of the north western Bay of Bengal and the north eastern Arabian Sea during winter monsoon
Balachandran, K.K.; Laluraj, C.M.; Jyothibabu, R.; Madhu, N.V.; Muraleedharan, K.R.; Vijay, J.G.; Maheswaran, P.A.; Ashraf, T.T.M.; Nair, K.K.C.; Achuthankutty, C.T. (Elsevier, 2008)The north eastern Arabian Sea and the north western Bay of Bengal within the Indian exclusive economic zone were explored for their environmental characteristics during the winter monsoons of 2000 and 2001 respectively. ... -
Impact of oxygen-depleted water on the vertical distribution of chaetognaths in the northeastern Arabian Sea
Kusum, K.K.; Vineetha, G.; Raveendran, T.V.; Muraleedharan, K.R.; Nair, M.; Achuthankutty, C.T. (Elsevier, 2011)The influence of a thick layer of oxygen-depleted water (<0.2 ml l sup(-1)) on the abundance and distribution of chaetognaths was investigated in the northeastern Arabian Sea (NEAS), a natural oxygen-deficient system in ... -
Indobis and its relevance to the Gulf of Mannar Biosphere reserve
Achuthankutty, C.T.; Kakodkar, A.; Nath, A.I.V. (National Biodiversity Authority, 2008)The Gulf of Mannar (GoM) which has been given the status of a Biosphere Reserve in 1989 under the Man and Biosphere Reserve Programme of UNESCO. It was declared as the first marine protected area in South and South east ... -
IndOBIS, an Ocean Biogeographic Information System for assessment and conservation of Indian Ocean biodiversity
Chavan, V.S.; Achuthankutty, C.T.; Berghe, E.V.; Wafar, M.V.M. (NISCAIR, CSIR, 2005)Compilation of inventories of components of coastal and marine biodiversity of Indian Ocean is hampered by several factors: low effort by some countries, preference to certain taxon, dwindling taxonomic expertise, low ... -
Influence of basin-scale and mesoscale physical processes on biological productivity in the Bay of Bengal during the summer monsoon
Muraleedharan, K.R.; Jasmine, P.; Achuthankutty, C.T.; Revichandran, C.; DineshKumar, P.K.; Anand, P.; Rejomon, G. (Elsevier, 2007)Physical forcing plays a major role in determining biological processes in the ocean across the full spectrum of spatial and temporal scales. Variability of biological production in the Bay of Bengal (BoB) based on basin-scale ... -
Influence of upwelling on distribution of chaetognath (zooplankton) in the oxygen deficient zone of the eastern Arabian Sea.
Kusum, K.K.; Vineetha, G.; Raveendran, T.V.; Muraleedharan, K.R.; Biju, A.; Achuthankutty, C.T. (Elsevier, 2014)he study addresses the coupled spatial scales in the physico-chemical variables and chaetognaths in the upwelling system of the eastern Arabian Sea during the 2005 summer monsoon. We studied the taxon between 0 and 1000 m ... -
Isolation of 2-deoxyecdysterone, a novel oxytocic agent, from a marine Zoanthus sp.
Parameswaran, P.S.; Naik, C.G.; Gonsalves, C.; Achuthankutty, C.T. (Indian Institute of Science, 2001)The insect-moulting hormone 2-deoxyecdysterone (2-deoxy-20-hydroxyecdysone 1) has been isolated for the first time and in relatively high yield (0.016%) from a marine Zoanthus sp. The compound exhibited promising oxytocic ... -
Isolation of peridininol, an anti-spasmodic carotenoid pigment, from Zoanthus sp.
Parameswaran, P.S.; Achuthankutty, C.T. (AP Akademi of Sciences, India, 2005)A C37 carotenoid pigment, peridininol, isolated from a marine Zoanthus sp. exhibited promising anti-spasmodic activity against nicotine and serotonin in in vitro studies using guinea pig ileum. Its purification and structure ... -
Larval distribution of sergestid shrimp Acetes in the estuarine system o f Goa
Achuthankutty, C.T.; Selvakumar, R.A. (Indian Association for Limnology and Oceanography, 1979) -
Larval ingression of penaeid prawns in the estuaries of Goa
Achuthankutty, C.T.; George, M.J.; Goswami, S.C. (Goa: National Institute of Oceanography, 1977) -
Larval Migration and growth of Marine Prawns in the Estuarine Habitat
Achuthankutty, C.T.; Nair, S.R.S. (Indian Association for Limnology and Oceanography, 1983)Larval migration and growth of @iMetapenaeus dobsoni, M. monoceros, M. affinis@@ and @iPenaeus merguiensis@@ were studied in the Mandovi Estuary and a nearby mangrove swamps for one year. In general, total number of larvae ... -
Life history and population dynamics of an estuarine amphipod, Eriopisa chilkensis Chilton (Gammaridae)
Aravind, N.P.; Sheeba, P.; Nair, K.K.C.; Achuthankutty, C.T. (Elsevier, 2007)The life cycle of the gammarid amphipod Eriopisa chilkensis Chilton from the Cochin estuary, south west coast of India, has been studied for the first time under laboratory conditions. Amphipods, especially gammarids, are ... -
Major crustacean groups and zooplankton diversity around Andaman-Nicobar islands
Madhupratap, M.; Nair, S.R.S.; Achuthankutty, C.T.; Nair, V.R. (CSIR-NISCAIR, 1981) -
Mangrove Swamps as Fry source for Shrimp Culture - A Case Study
Achuthankutty, C.T.; Nair, S.R.S. (Indian Association for Limnology and Oceanography, 1980)Three species of commercially important penaeid prawns, viz. Metapenaeus dobsoni, M. monoceros and Penaeus merguiensis occur in the Pilerne mangrove swamp of Goa. M. dobsoni was the dominant species contributing 42.66% ... -
Marine prawn fishery of India - Its problems and prospects
Achuthankutty, C.T.; Nair, S.R.S. (Omega Scientific Publ., New Delhi, 1996) -
Maturation of Metapenaeus moyebi (Kishinouye) in Goa estuaries
Nair, S.R.S.; Achuthankutty, C.T.; Parulekar, A.H. (University of Kerala, Thiruvananthapuram, 1993)An assessment of the stake net fishery in the Mandovi and Zuari estuaries of Goa revealed that Metapenaeus moyebi, a penaeid prawn hitherto rarely recorded in Indian waters, formed a good percentage of the estuarine prawn ... -
Maturation of the penaeid prawn Metapenaeus moyebi in Mandovi Estuary, Goa
Nair, S.R.S.; Achuthankutty, C.T.; Parulekar, A.H. (NISCAIR, New Delhi, 1993)Metapenaeus moyebi contributed a good share of penaeid prawn population in the Mandovi Estuary of Goa, India throughout the year. Both males and females of this species with fully mature gonads were observed in the estuary, ... -
Maturity of penaeid prawn Metapenaeus moyebi in the estuary
Achuthankutty, C.T.; Nair, S.R.S. (1992) -
Microdistribution of zooplankton in the neustonic realm of the eastern Arabian Sea during southwest monsoon
Achuthankutty, C.T.; Nair, S.R.S.; Nair, V.R.; Padmavati, G.; Madhupratap, M. (Oxford and IBH, New Delhi, 1992)During the southwest monsoon season of 1987, the zooplankton distributions in the neustonic realm (upper 50 cm) of the eastern Arabian Sea were studied and compared with those in the water column. The upper microlayer ...