Ivy,Thomas; Dr.Chandramohan, D(Cochin University Of Science And Technology, April 21, 1982)
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Abstract:
The thesis is proposed to study the occurrence and distribution
of chitinoclasts in water, sediment and fauna as
related to site characteristics such as temperature,
salinity, depth of water, pH, etc. Since no information
is available on the chitinolytic properties of coastal
strains, it is also proposed to study the chitinolytic
activity of the bacterial isolates in relation to various
environmental conditions. It is also planned to work out the taxonomy of some of the representative isolates and certain kinetic properties of their chitinases. It is expected that the results of the study would yield a comprehensive information-on the chitinoclastic bacteria in the southern coastal zone of
west coast of India.
Description:
Department Of Marine Sciences,Cochin University Of Science And Technology
Sanjeev, S; Dr.Joseph, Stephen(Cochin University of Science and Technology, February 5, 1990)
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Abstract:
In India much work has been done on different aspects of quality of
processed fish and fishery products (Pillai et al., 1965; Iyer and Chaudhuri,
1966; Iyer et al., 1966; Sreenivasan and Joseph, 1966; Pillai and Rao, 1969;
Mathen et al., 1975; Valsan et al., 1985) and standards have been formulated
for almost all the fishery products. Quality standards for fresh fish cover
only a few fish species available in the markets. For the formulation and
recommendation of quality standards for fish and fishery products for domestic
trade detailed background informations are necessary. Khot et al., (1982),
Valsan et al. J (1985) and Iyer et al. (1986) have reported on the bacterial
flora of sea foods at retail level in Bombay. Cochin is a major fish landing
centre of the south west coast of India, and an average of 25,000. tonnes
of fish/shell fish are landed annually at this harbour which is about 10 percent
of the total catch of fish in Kerala (Lakshmanan -et -al., 1984). All the
varieties of marine, brackish water and fresh water fishes are available in
Cochln throughout the year for catering to Its cosmopolitan. population and
informations regarding their bacteriological quality are scanty. Hence the
present study was undertaken to investigate the bacteriological quality of fish
and fishery products available in the markets and cold storages situated in
and around Cochin meant for internal consumption.
Description:
Central Institute of Fisheries Technology,
Cochin University of
Science and Technology
Asok Kumar,K; Dr.Shahul,Hameed M(Cochin University of Science & Technology, 1990)
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Abstract:
The present study of the parasitic copepods gives the taxonomic description of thirty one species of parasites collected from various elasmobranch fishes of Kerala coast. Copepods parasitic on fishes include three sub orders, viz. poecilostomatoida, cyclopoida and siphonostomatoida. Parasitic copepods of elasmobranch fishes for the present study were collected from different fish landing centres of Kerala and by undertaking regular fishing trips. The collected parasites are identified to the species level and described. It is found that out of thirty one species, fifteen are new to science. They belong to the genera viz. Nothobomolochus Vervoot, 1962, Caligus Muller, 1785, Alebion, Kroyer, 1863, Gloipotes Steenstrup and Lutken, 1861, Pandarus Leach,1819, Perissopus Steenstrup and Lutken, 1861, Echthrogaleus Steenstrup and Lutken, 1861 and Kroyeria van Beneden, 1853. Fifteen new host records were reported. Two genera viz. Echthrogaleus and Entepherus were reported for first time from Indian waters. A new genus called Penicillus was erected. The general observations made during this study revealed certain interesting aspects of host-parasite relationship, host specificity, site specificity, adaptive modifications and geographical distribution.
Description:
Department of Industrial Fisheries, Cochin University of Science and Technology
Rashiba, A P; Dr.Saramma, Panampunnayil U(Cochin University of Science And Technology, April 9, 2010)
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Abstract:
The main objectives of the study are: To study the seasonal distribution of copepods with special reference to their qualitative and quantitative distribution, with notes on biodiversity in the Andaman Sea and the Bay of Bengal.
To study the spatial and temporal distribution of copepods in the Andaman Sea
and the Bay of Bengal.To understand the hydrography and the environmental characteristics of the Andaman Sea and the Bay of Bengal and their role in the distribution and biomass of copepods.To study the vertical migration/diurnal migration of the copepods.
To study the difference between the coastal and oceanic composition of copepods
in the study area and the factors responsible for it.
Description:
National Institute of Oceanography, Regional Centre, Kochi
Radha Devi, A; Dr.Kurian, C V(Cochin University Of Science And Technology, August , 1983)
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Abstract:
Cumacea plays an important role in the marine environment as food for man and comercially important species of fishes . Hence it is desirable to have a better knowledge of the taxonomy, ecology, biology and distribution of the various species of Cumacea. The present work is directed towards the study of the above aspects
Description:
School Of Marine Sciences,Cochin University Of Science And Technology
The main objective of the study was primarily to determine the effect of hydrographical parameters especially nutrients which were supplied externally to the seawater while culturing the diatom Chaetoceros calcitrans, under laboratory conditions, and to determine its optimum concentration for ideal growth of the culture, in such a condition of increased rate of pollution due to the industrialization and effluents. Also an attempt was made to study the possible correlation of diatom abundance in the South west Coast of India with the landings of the pelagic fishery resources, especially sardine, mackerel and anchovy, since these fishes are largely diatom feeders. Positive correlation was found between the diatoms and pelagic fish landings of Thalassery and Vizhinjam area while at Cochin there was less significant correlation between the two variables
Subhash, Chander; Dr.Diwan, A D(Cochin University of Science and Technology, November , 1986)
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Abstract:
In the present study, the main emphasis was to find out it seasonal and ecosystem specific variations of calcium magnesium, phosphorus, copper and zinc in the water and the
sediment has any role to play in altering the concentration of these elements in different tissues of intermoult p.indicus as evidenced by the seasonal studies in the grow out
and the marine ecosystems
Description:
Centre of advanced studies in mariculture, Central marine fisheries research institute
Kerala Varma, K; Dr.Kurup, P G(Cochin University of Science and Technology, April , 1989)
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Abstract:
The thesis focused Studies on Energy Exchange and Upper Ocean Thermal Structure in Arabian Sea and Heat Transport in Northern Indian Ocean. The present thesis is an attempt to understand the upper ocean thermal characteristics at selected areas in the western and eastern
Arabian Sea in relation to surface energy exchange and dynamics, on a climatological basis. It is also aimed to examine, the relative importance of different processes in the evolution of SST at the western and eastern Arabian Sea. Short-term variations of energy exchange and upper ocean
thermal structure are also investigated. Climatological studies of upper ocean thermal structure and surface energy exchange in the western and eastern parts of Arabian Sea bring out the similarities/differences and the causative factors for the observed features. Annual variation of zonally averaged heat advection in north Indian Ocean shows that maximum export of about
100 W/m2 occurs around 15ON during southwest monsoon season. This is due to large negative heat storage caused by intense upwelling in several parts of northern Indian Ocean. By and large, northern Indian Ocean is an area of heat export
Description:
Physical Oceanography and Meteorology Division, School of Marine Sciences, Cochin University of Science and Technology
Padmini,R; Dr.Murthy, A V S(Cochin University of Science And Technology, April , 1981)
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Abstract:
There are only a few attempts in the Indian ocean to evolve reliable climatic models of energy exchange fluxes and to study their inter annul variations. Large space scale and time history of the flux fields could be estimated by the bulk aerodynamic exchange and radiation equation, making use of the climatic normal’s of the related parameters derived from the remarkably good amount of surface marine observations compiled and made available on magnetic tape TDF II by the national climatic centre of NOAA for the period of years 1854 –early 1973. In this thesis the author has made an attempt to calculate the thermal energy exchange fluxes in a meaningful way, using the bulk aerodynamic coefficients which depend on the changes in the wind speed. The spatial and temporal distribution of the exchanges of energy between the ocean and atmosphere , are presented and their impact on the climatic variations of the Indian ocean are discussed from the point of view of predominating air sea interaction processes.
Description:
School of marine sciences, Cochin University of Science And Technology
Boopendranath, M R; Dr.Shahul,Hameed M(Cochin University of Science and Technology, September , 2000)
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Abstract:
Present work deals with the studies on energy requirement and convervation in selected fish harvesting systems.Modem fishing is one of the most energy intensive methods of food production. Fossil fuels used for motorised and mechanised fishing are nonrenewable and limited. Most of the environmental problems that confront mankind today are connected to the use of energy in one way or another. Code of Conduct for Responsible Fisheries (FAO, 1995) highlights the need for efficient use of energy in the fisheries sector. Information on energy requirement in different fish harvesting systems, based on the principles of energy analysis, is entirely lacking in respect of Indian fisheries. Such an
analysis will provide an unbiased decision making support for maximising the yield per unit of non-renewable energy use, from different fishery resource systems, by rational deployment of harvesting systems. In the present study, results of investigations conducted during 1997-2000 on energy requirement in selected fish harvesting systems and approaches to energy conservation in fishing, are presented along with a detailed description of the fish harvesting systems and their operation. The content of the thesis is organised into 8 Chapters.
Description:
School of Industrial Fisheries, Cochin University of Science and Technology
Muraleedharan,P M; Dr.Sharma,G S(Cochin University of Science and Technology, September , 1984)
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Abstract:
This thesis is an outcome of the studies, carried out by the author on the Equatorial Undercurrent
and the Equatorial Jet, an interesting and unique phenomenon discovered, recently, in the Indian Ocean (wyrtxi, 1973). The main objective of the thesis is to carry out a detailed investigation of the seasonal, latitudinal and longitudinal variation of the Equatorial Undercurrent in the Indian Ocean and also the Equatorial Jet, through mapping the vertical distribution of the oceanographic properties across the equator along various longitudes for all the months of an year, between SON and SOS, utilising the oceanographic data collected during the International Indian Ocean Expedition and subsequently in the equatorial Indian Ocean. As the distribution of the hydrographic properties give only a qualitative identification of the Undercurrent, a novel technique of computing the zonal flux through bivariate distribution of salinity and thermosteric anomaly introduced by Montgomery and Stroup (1962), is adopted in order to have a quantitative variation of the Equatorial Undercurrent and the Equatorial Jet. Finally, an attempt
is made to give a plausible explanation of the features observed.
Description:
School of marine sciences, Cochin University of Science And Technology