Browsing by Author "Achuthankutty, C.T."
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Commercially important penaeid shrimp larvae in the estuaries of Goa
Achuthankutty, C.T. (Indian Association for Limnology and Oceanography, 1987)Larval stages of the penaeid shrimps, Metapenaeus dobsoni (Miers), M. affinis (Milne - Edwards) and Penaeus merguiensis De Man were mostly distributed at the lower reaches of Mandovi and Zuari estuaries. While larvae of ... -
Comparison live adult Artemia and squid meat on the growth of Penaeid shrimp Metapenaeus dobsoni (Miers)
Nair, S.R.S.; Achuthankutty, C.T.; Royan, J.P. (Indian National Science Academy, 1995)An experiment lasting 14 weeks was conducted to compare the efficiency of live adult Artemia with fresh squid meat on growth of penaeid shrimp Metapenaeus dobsoni. The shrimps were found actively feeding on live Artemia ... -
Complete regeneration of ablated eyestalk in penaeid prawn, Penaeus monodon
Desai, U.M.; Achuthankutty, C.T. (Indian Academy of Sciences, 2000)Ablation of one eyestalk is generally practised in all commercial prawn hatcheries to induce gonad maturation and spawning. An observation was made that the ablated eyestalk of spent females of the tiger prawn Penaeus ... -
Darwin core based data streamlining with digimus 2.0
Kakodkar, A.P.; Kerkar, S.S.; Varghese, N.S.; Kavlekar, D.P.; Achuthankutty, C.T. (University of Kansas, 2009)Cataloguing biological specimen is an important activity of biological museums world over. Software developed especially for this purpose has evolved over time to achieve more accuracy in retrieving data from large and ... -
Dictionary of aquaculture By A.K Singh and A Mittal
Achuthankutty, C.T. (CSIR-NISCAIR, 1999) -
Distribution and abundance of pelagic shrimps from the deep scattering layer of the eastern Arabian Sea
Karuppasamy, P.K.; Menon, N.G.; Nair, K.K.C.; Achuthankutty, C.T. (The National Shellfisheries Association, 2006)The sonic scattering layer (SSL) or deep scattering layer (DSL) of the eastern Arabian Sea of India is found in depths between surfaces to 750 m with varying thicknesses and in multiple layers. There is a distinct resident ... -
Distribution of heterotrophic bacteria in marine sediments
Nair, S.; LokaBharathi, P.A.; Achuthankutty, C.T. (CSIR-NISCAIR, 1978) -
Distribution of penaeid prawn larvae in the coastal waters of Goa
Achuthankutty, C.T.; Parulekar, A.H. (CSIR-NISCAIR, 1986)Larval and postlarval distribution of 4 commercially important penaeid prawns was studied in the coastal waters of Goa extending up to 40 m depth zone during Jan. - Dec. 1981. Larval stages of Metapenaeus dobsoni and ... -
Ecology of sandy beach at Sancoale, Goa: Part I - Physical factors influencing production of macrofauna
Achuthankutty, C.T. (CSIR-NISCAIR, 1976) -
Ecology of sandy beach at Sancole, Goa. Part II - Population model and production of Emerita holthuisi Sankolli
Achuthankutty, C.T.; Wafar, M.V.M. (CSIR-NISCAIR, 1976) -
Effect of industrial effluents on biota: a case study off Mangalore, west coast of India
Devassy, V.P.; Achuthankutty, C.T.; Harkantra, S.N.; Nair, S.R.S. (CSIR-NISCAIR, 1987)The inshore waters off Mangalore, receiving industrial effluent discharge were studied for phytoplankton, zooplankton and benthic populations, from December 1984 to May 1985. Total phytoplankton population varied from 7 ... -
Enhanced chlorophyll a and primary production in the northern Arabian Sea during the spring intermonsoon due to green Noctiluca scintillans bloom
Madhu, N.V.; Jyothibabu, R.; Maheswaran, P.A.; Jayaraj, K.A.; Achuthankutty, C.T. (Taylor & Francis, 2012)The surface waters of the northeastern Arabian Sea sustained relatively high chlorophyll a (average 0.81+ or -0.80 mg m sup(-3)) and primary production (average 29.5+ or -23.6 mgC m sup(-3)d sup(-1)) during the early spring ... -
Environmentally-related seasonal variation in symbiotic associations of heterotrophic dinoflagellates with cyanobacteria in the western Bay of Bengal
Jyothibabu, R.; Madhu, N.V.; Maheswaran, P.A.; Devi, C.R.A.; Balasubramanian, T.; Nair, K.K.C.; Achuthankutty, C.T. (Balaban Publishers, 2006)In the western Bay of Bengal, some species of heterotrophic dinoflagellates recurrently show symbiotic associations with cyanobacteria (Synechococcus/Synechocystis). The occurrence of these associations is markedly higher ... -
Estimates of high absolute densities and emergence rates of demersal zooplankton from the Agatti Atoll, laccadives
Madhupratap, M.; Achuthankutty, C.T.; Nair, S.R.S. (American Society of Limnology and Oceanography, 1991)Direct sampling of the sandy substratus of the Agatti Lagoon with a corer showed the presence of vary high densities of epibenthic forms. On average, densities were about 25 times higher than previously estimated with ... -
Feeding behaviour of salp Thalia democratica (Thaliacea)
Nair, S.R.S.; Achuthankutty, C.T.; Bhattathiri, P.M.A.; Madhupratap, M. (NISCAIR, CSIR, 1995)The salp Thalia democratica was found to feed on Chaetoceros sp. continuously during the entire experimental period of 24 hours. The rate of consumption (0.09-0.16% animal sup(-1) h sup(-1)), however, did not differ ... -
Growth of hatchery raised banana shrimp Penaeus merguiensis (de Man) (Crustacea: Decapoda) juveniles under different salinity
Saldanha, C.M.; Achuthankutty, C.T. (NISCAIR, CSIR, 2000)In order to optimise the conditions for improved production of the banana shrimp Penaeus merguiensis in the farms, effect of salinity on growth and survival was studied for 4 weeks using hatchery reared juveniles. Survival ... -
Growth of juvenile shrimp Metapenaeus monoceros fed with squid and mussel
Achuthankutty, C.T.; Nair, S.R.S.; Krishnakumari, L. (NISCAIR, New Delhi, 1993)Small juveniles of both sexes and females of large juveniles of Metapenaeus monoceros attained faster growth with squid diet. Males of large juveniles registered better growth with mussel diet. No significant difference ... -
Growth of penaeid prawn in Goa waters
Achuthankutty, C.T.; Parulekar, A.H. (CSIR-NISCAIR, 1986) -
Heterotrophic bacteria and biochemical activities off the west coast of India
Nair, S.; LokaBharathi, P.A.; Achuthankutty, C.T. (Indian Association for Limnology and Oceanography, 1979) -
Hydrographic and productivity characteristics along 45 degrees E longitude in the southwestern Indian Ocean and Southern Ocean during austral summer 2004
Jasmine, P.; Muraleedharan, K.R.; Madhu, N.V.; AshaDevi, C.R.; Alagarsamy, R.; Achuthankutty, C.T.; Jayan, Z.; Sanjeevan, V.N.; Sahayak, S. (Inter-Research, 2009)During the austral summer 2004, an intensive multidisciplinary survey was carried out in the Indian Ocean sector of the Southern Ocean to study the main hydrographic features and the associated productivity processes. This ...