Now showing items 1-6 of 6
| URI: | http://dyuthi.cusat.ac.in/purl/5523 |
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| Dyuthi T-2566.pdf | (25.15Mb) |
| Abstract: | Environmental persistence, fate and interactive effects with living organisms - beneficial or toxic - of trace elements are directly related to the physico-chemical forms in which they occur. Knowledge on the association of trace metals with different environmental compartments in an aquatic system are, therefore, essential for monitoring the trace metal pollution as well as transport, fate and bio-geochemical cycles of trace metals. This thesis is a modest attempt in assessing the trace metal levels and their behaviour in the aquatic environment of Kuttanad, an aquatic system that is severely affected by man's intervention on natural processes, by seriously evaluating the levels of trace metals in dissolved and particulate phases and also in the different chemical fractions of the sediments. |
| Description: | Department of Chemical Oceanography, School of Marine Sciences, Cochin University of Science and Technology |
| URI: | http://dyuthi.cusat.ac.in/purl/3525 |
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| Dyuthi-T1498.pdf | (4.420Mb) |
| Abstract: | This thesis attempts to gain insight on the mathematical approach to estuarine oceanographic systems; also to closely understand the governing processes in the estuarine environment as well as in the adjoining river reaches. The main aim was to conduct pollution routing for tropical estuarine environment namely, for the Cochin estuary. In this context, attempts have been made to apply, verify and validate the application of models, pre- prepared with necessary modifications to suit the area of interest by use of RIVMIX and WASP tools. Finally the thesis concludes by highlighting the advantages and limitations in modelling water bodies and concurrentlysimulates most of the possible scenarios within the purview of this work. |
| Description: | Department of Physical Oceanography, Cochin University of Science and Technology |
| URI: | http://dyuthi.cusat.ac.in/purl/2819 |
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| Dyuthi-T0839.pdf | (8.802Mb) |
| Abstract: | The Sediment budgeting studies are done to bring out the coastal processes at work, to understand the beach-innershelf sedimentary dynamics and to assess the stability of any coastal stretch. There is a dearth of such studies as far as the Indian coast is concerned. The Chavara coast of Kollam district, Kerala, is world famous for its rich heavy mineral resources. These mineral resources are being commercially mined by the Indian Rare Earths Ltd. (IREL) and Kerala Minerals and Metals Ltd. (KMML), two Public Sector Undertakings located in the area. The impact of mining on stability of the beach has been a point of debate among the local people as well as researchers. The coastal stretch of 22km length from Neendakara to Kayamkulam which is referred to as the Chavara coast. The tidal, wind driven and continental shelf currents, there could also be the contribution of coastal trapped waves and baroclinic flow associated with the plumes of fresh water coming from the estuaries. The main objectives of the study are the hydrodynamic processes and mechanism involved in the sediment movement along the Chavara coast, Identify the different sources and sinks of beach sand along the coast, Quantify the sediment input/output into/from the coast and assess the erosion/accretion scenario of the coast. |
| URI: | http://dyuthi.cusat.ac.in/purl/938 |
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| Dyuthi-T0147.pdf | (11.59Mb) |
| Abstract: | Ecology is the study of systems at a level in which individuals or whole organisms may be considered elements of interaction, either among themselves, or with a loosely organised environmental matrix. Systems at this level are named ecosystems, and ecology, of course, is the biology of ecosystems" (Hargalef, 1968). This thesis includes principally, a study on the ecology of zooplankton of the Cochin backwaters conducted during the years 1971-72. This monsoonal estuarine system is particularly interesting, since it exhibits a wide range of variations in its environmental conditions which is naturally reflected in the fauna also. Several publications on various aspects of its hydrobiology have come out in the recent past. But studies on the zooplankton of the estuary have mostly been discontinuous either in space or time or restricted to its groups |
| Description: | School of marine sciences, Cochin University of Science And Technology |
| URI: | http://dyuthi.cusat.ac.in/purl/3465 |
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| Dyuthi-T1470.pdf | (7.438Mb) |
| URI: | http://dyuthi.cusat.ac.in/purl/1543 |
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| Haridas P 1984.PDF | (373.3Kb) |
| Zooplankton stu ... environs-Bibliography.PDF | (8.628Mb) |
| Zooplankton stu ... environs-Bibliography.PDF | (8.628Mb) |
| Zooplankton stu ... Community structures-5.PDF | (2.937Mb) |
| Zooplankton stu ... chin environs-figures1.PDF | (6.760Mb) |
| Zooplankton stu ... chin environs-figures2.PDF | (15.91Mb) |
| Zooplankton stu ... nvirons- Hydrography-3.PDF | (7.251Mb) |
| Zooplankton stu ... virons- INTRODUCTION-1.PDF | (7.364Mb) |
| Zooplankton stu ... Materials and Method-2.PDF | (3.504Mb) |
| Zooplankton stu ... s- Species diversity-7.PDF | (2.912Mb) |
| Zooplankton stu ... inance and sucession-6.PDF | (2.870Mb) |
| Zooplankton stu ... hin environs-Summary-9.PDF | (4.354Mb) |
| Zooplankton stu ... cochin environs-Tables.PDF | (24.56Mb) |
| Zooplankton stu ... nvirons- Zooplankton 4.PDF | (23.88Mb) |
| Zooplankton stu ... plankton Assemblages-8.PDF | (3.756Mb) |
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