Sujatha, C H; Dr.Jacob, Chacko(Cochin University of Science and Technology, July , 1992)
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Abstract:
Industrial pollutants, consisting of heavy metals, petroleum residues, petrochemicals, and a wide spectrum of pesticides, enter the marine environment on a massive scale and pose a very serious threat to all forms of aquatic life. Although, earlier, efforts were directed towards the identification of pollutants and their major sources, because of a growing apprehension about the potential harm that pesticides can inflict upon various aquatic fauna and flora, research on fundamental and applied aspects of pesticides in the aquatic environment has mushroomed to a point where it has become difficult to even keep track of the current advances and developments. The Cochin Estuarine System (CES), adjoining the Greater Cochin area, receives considerable amounts of domestic sewage, urban wastes, agricultural runoff as well as effluent from the
industrial units spread all along its shores. Since preliminary investigations revealed that the most prominent of organic pollutants discharged to these estuarine waters were the pesticides, the present study was designed to analyse the temporal and spatial distribution profile of some of the more toxic, persistent pesticides ——— organochlorines such as DDT and their metabolites; HCH-isomers; a cyclodiene compound," Endosulfan and a widely distributed, easily degradable,
organophosphorus compound, Malathion, besides investigating their sorptional and toxicological characteristics.
Although, there were indications of widespread contamination of various regions of the CBS with DDT, HCH-isomers etc., due to inadequacies of the monitoring programmes and due to a glaring void of baseline data the causative factors could not identified authentically. Therefore, seasonal and spatial distributions of some of the more commonly used pesticides in the CES were monitored systematically, (employing Gas Chromatographic techniques) and the results are analysed.
Description:
Chemical
Oceanography Division, School of Marine Sciences, Cochin University
of Science and Technology
Verghese, C P; Dr.Shahul,Hameed M(Cochin University of Science and Technology, May , 1994)
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Abstract:
The present scenario of industrial fishing in India is that most of large trawlers are based at Visakhapatnam and congregate in the potential shrimp ground in the
upper East coast of India commonly known as the Sandheads. These are outriggcr vessels operating two or four trawl nets along with a testing trawl called try
net. In the early Seventies these vessels were operating on a very high economic return which was evident from the steady increase in number of outriggers over a period of twenty years. Since the total allowable catch has to be
shared by all vessels including the increasing fleet, reduction per vessel output is bound to happen. Therefore some of them could not survive the competition
and withdrew from the scene. The number of outriggers did not increase subsequently. However, there arose a doubt whether the existing fleet of about 180 vessels are fishing economically or whether there is any scope for further introduction of industrial vessels in the region. This study is focussing to the techno economic aspects of industrial fishing in the upper East coast of India
Description:
Department of Industrial Fisheries,
Cochin University of Science and Technology,
Jyothibabu, R; Dr. Nair, K K C(National Institute of Oceanography, July , 2004)
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Abstract:
In the present study an attempt has been made to understand the microzooplankton community along the easr coast of India. Most of the earlier studies projected Bay of Bengal as an oligotrophic system where phytoplankton growth is limited by a number of factors among which nutrients are the foremost. Hence it is logical to consider that the most of the primary production in the Bay of Bengal could be contributed by small sized phytoplankton harnessing the available resources, which in turn can be utilized effiency by the microzooplankton only. Hence microzooplankton could play in transferring primary organic carbon to higher tropic levels in this region.
Syed, Ismail Koya M S; Dr.Mohandas, A(Cochin University of Science And Technology, December , 1987)
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Abstract:
The great number of parasitic species of marine
and brackishwater animals that have been described indicates
that parasites play an important part in the ecology
of the oceans and brackishwaters. Jnspite of their
importance, marine and brackish parasites are
probably the least known group of organisms. Considering
the large number of marine and brackishwater hosts, especially in the tropics, it is no exaggeration to say
that the description of marine and brackishwater parasites
has hardly begun (Rohde, 1982). With this view in mind,
an attempt has been made to study the ecobiology of the
helminth parasites of finfishes and shellfishes of eochin
waters with special reference to digenetic trematodes.
The work is broadly divided into three chapters,
Chapter 1 consists of a description of the study area,
prevalence of infection and concurrent infections with
helminth parasites, seasonal variation, host specificity>
and zoogeography of digenetic trematodes; Chapter II
deals with the systematics of digenetic trematodes; and
Chapter III deals with studies on larval trematodes from
molluscs and crustacea, adult from a molluscan host,
life-cycle, biology and histopathology
Description:
School of Marine Sciences, Cochin University of Science and Technology
Sincy,Joseph; Saramma, A V(Department of Marine Biology, Microbiology and biochemistry, September , 2005)
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Abstract:
The main objectives of the present investigation were to evaluate the qualitative and quantitative distribution of natural cyanobacterial population and their ecobiological properties along the Cochin estuary and their application in aquaculture systems as a nutritional supplement due to their nutrient-rich biochemical composition and antioxidant potential. This thesis presents a detailed account of the distribution of cyanobacteria in Cochin estuary, an assessment of physico-chemical parameters and the nutrients of the study site, an evaluation of the effect of physico-chemical parameters on cyanobacterial distribution and abundance, isolation, identification and culturing of cyanobacteria, the biochemical composition an productivity of cyanobacteria, and an evaluation of the potential of the selected cyanobacteria as antioxidants against ethanol induced lipid peroxidation. The pH, salinity and nutritional requirements were optimized for low-cost production of the selected cyanobacterial strains. The present study provides an insight into the distribution, abundance, diversity and ecology of cyanobacteria of Cochin estuary. From the results, it is evident that the ecological conditions of Cochin estuary support a rich cyanobacterial growth.
Sheeba, Susan Mathews; Dr.Gopinatha Menon, N(Cochin University of Science and Technology, January , 1992)
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Abstract:
Prawn culture by traditional method forms an important occupation for the people in these areas, especially in the Vypeen island. Though short term studies have been made on various aspects of prawn culture field and its ecology, a study of detailed nature covering perennial, seasonal, fields and canals between coconut plantation is lacking from these areas. This study will also enable to assess the relative productivity of different systems during different seasons and the influence of the environment on the production potentials. Therefore the present study is taken upto throw more light on the ecological characteristics of these fields with special emphasis on its primary, secondary and tertiary production. The present area of investigation includes the prawn culture fields adjacent to Cochin backwater. The Cochin backwater (O9° 58'N 76° 28'E) is a shallow semi-enclosed body of water of tropical estuary. A narrow gut, about 450 M wide forms its main connection with the Arabian sea and this region is subjected to regular tidal influenceertiary production.
Magesh, G; Dr. Menon, A R R(Cochin University of Science And Technology, February 12, 2014)
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Abstract:
mbikulam Tiger Reserve of Western Ghats using Geospatial technology. The major objectives of the study are Land use land cover mapping (LULC) and Phytodiversity analysis. Satellite data was used to map the land use / land cover using supervised classification techniques in Erdas imagine. The change for a period of 32 years was assessed using the multi-temporal satellite datasets from Landsat MSS (1973), Landsat TM (1990), and IRS P6 LISS III (2005). A geospatial approach was used for the land cover analysis. Digital elevation models, Satellite imageries and SOI topo sheets were the data sets used in the analysis. Vegetation sampling plots distributed over the different forest types were enumerated and studied for Phytodiversity analysis.
Description:
Dept. of GIS & Remote Sensing.
Forest Management and Information System Division,Kerala Forest Research Institute
Kusum, Komal Karati; Dr. Raveendran, T V(Cochin University of Science and Technology, June 20, 2012)
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Abstract:
This thesis entitled ecology of chaetognaths in the indian EEZ.The present study, in general, deals with the distribution pattern of mesozooplankton biomass and abundance with special reference to the detailed ecology of the important carnivorous planktonic group, the chaetognath, in the two major ocean basins of the Indian EEZ, the Arabian Sea (AS) and the Bay of Bengal (BoB). Prior to the International Indian Ocean expedition (IIOE, 1960 – 1965), cmprehensive studies on chaetognath in the Indian waters were very limited and was confined mostly to some coastal and oceanic regions.
The study revealed a profound influence of different physical process on the abundance of chaetognath community. The significant influence exerted by different physico-chemical factors on the vertical distribution of chaetognath species was also evident.
Prior to this study, only very little information was available on the ecology and distribution pattern chaetognaths in both the Arabian sea and the Bay of Bengal in relation to various mesoscale processes and physicochemical .variables. This study, emphasizing the short term and long term influences of different meso-scale and basin scale physical events on the ecology of this important plankton group provides the baseline data for extensive ecological research on any major mesozooplankton group in this tropical low latitude region.
Meera Bai,M; Dr.Sankaranarayanan, K C(Cochin University of Science and Technology, July , 1987)
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Abstract:
A massive programme for the development of small scale industries in India known as ‘Industrial Estates Programme‘ was launched by the Government of India in 1955, This technique of industrialisation was recommended by the Small Scale Industries Board in 1955.
The first industrial estate in India was set up at Rajkot (Gujarat) in September 1955 and the first shed allotted in December 1955. Since the Government of India entrusted the state governments with the responsibility of starting the estates, the Government of Kerala decided to start one industrial estate in each district during the second plan. It was envisaged that each district should have two industrial estates each, one as urban estate, the other as semi-urban or rural estate. This study attempts to make an economic evaluation of the Industrial estates programme in Kerala. It is based on a survey of all working industrial units in the 17 major industrial estates of Kerala.
Description:
Department of applied economics, Cochin University of Science And Technology