Santhosh,S; Mathew,P T(Central Institute of Fisheries Technology, Faculty of Marine Sciences, 2006)
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Abstract:
The present study examined the antiulcer effect of glucosamine on mucosal antioxidant defense system in ibuprofen-induced peptic ulcer in male albino rats. The results of the present study indicate that the pre-oral administration of chitosan and glucosamine maintain near to the normal status the activities of the mucosal antioxidant enzymes and the level of GSH (Glutathione), which protect mucosa against oxidative damage by decreasing the lipid peroxidation and strengthening the mucosal barrier, and which are the first line of defense against exogenous ulcerogenic agents. In this study indicate that the oral pre-treatment of chitosan and glucosamine can prevent ibuprofen-induced peptic ulcer in rats.This study can be concluded that co-administration of chitsosan and glucosamine can effectively prevent the isonized and rifampicin induced hepatotoxicity in rats.Comparatively, chitosan was found to have better results than glucosamine in alleviating the hepatic disorders.
Unnikrishnan Nair, N; Balakrishnan Nair,N(Cochin University of Science and Technology, July 10, 1984)
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Abstract:
A detailed study of the hydrography of the Cochin Backwaters, the habitat off crassostrea madrasensis has been carried out. Data pertaining to air temperature, water temperature, salinity, dissolved oxygen, turbidity and rainfall have been collected and presented. The temperature fluctuation was in the range of 5°C only and that of salinity between 1.1%o and 32.9%o. Fairly steady salinity has been recorded during the pre-monsoon period (February to May) and drastic declension during the monsoon period (June-September).Dissolved oxygen varied between 2.5 ml/l and 6.5 ml/l. Turbidity was highest in June (27.9 p.p.m.) and minimum (10.2 p.p.m.) in February. A detailed study on marine biofouling in the Cochin Backwaters has been made with special reference to primary film, settlement and growth of the fouling organisms such as hydroids, bryozoans, tube-dwelling polychaetes, barnacles and modiolus
Bright Singh, I S; Dr.Lakshmanaperumalsamy, P; Dr.Chandramohan, D(Cochin University of Science and Technology, October , 1986)
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Abstract:
Ocean persists as a rich and renewable source of cheap protein for the whole world. Among the prawns/shrimps landed from the Indian Ocean and her backwaters, more than 90% are exported to affluent countries. The Indian white prawn Penaeus indicus, constitutes the major portion of the frozen shrimps exported from India every year. The present study is aimed at gathering information on the total heterotrophic bacteria (THB) associated with B. indicus, with special reference to eggs, nauplii, zoeae, mysis, and post larvae in hatchery, and juveniles and adults in culture pond. Simultaneously, IHB associated with E. indicus in its natural habitat also is studied for comparison. It is envisaged that this information will be highly useful for modifying the existing hatchery and pond management-practices.
Description:
School of Marine Sciences, Cochin University of Science and Technology
Damodaran,R; Dr.Kurian, V C(Cochin University of Science and Technology, September , 1972)
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Abstract:
There is very little information on the subtidal bottom fauna of the shelf regions in the seas around India. What little is known is restricted to macro benthos. The paucity of the work on bottom fauna and the importance of mud banks in the fishery of the South West Coast of India has initiated the present study. Attempts have been made to obtain a picture of the bottom fauna of a mud bank region of the Kerala Coast. The difficulties involved in the sampling and analysis, especially the availability of a suitable vessel during the S.W. Monsoon, resulted in the work being restricted mainly to the Narakal mud bank region 6 Km. north of Cochin Detailed sampling is conducted using grab, dredge and to a small extent beam trawl, to assess the qualitative and quantitative nature of the macro benthos. Important species contributing to the fauna are identified and the standing crop estimated for different seasons. The meiobenthos was studied using core samples taken from the grab. Animals were identified to the major taxa. Standing crop of meiobenthos and the quantitative importance of different groups were also studied. The data collected have been interpreted and discussed. As an understanding of the physico-chemical aspects of the environment is essential in order to obtain a true picture of the benthos, attempts were made in this direction. Environmental parameters such as temperature of the sediment, salinity, temperature, and dissolved oxygen in the overlying water were studied .during the period of benthos investigation. Monthly observations on the dissolved inorganic and organic phosphorus in the area of investigation have been made. The physico-chemical nature of the sediment was also studied. Influence of these ecological variables on the bottom fauna is discussed.
Description:
Department of Marine Sciences, Cochin University of Science and Technology
Philip, K P; Dr. Kuruvila, Mathew(Cochin University Of Science And Technology, September , 1994)
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Abstract:
Preliminary investigations revealed that 3. hamrur is the predominant
species along the east and west coasts of India while other species are
sparsely distributed and occur sporadically. In the present investigation,
aspects such as population parameters, breeding and feeding biology, fishery
etc. of _l:. hamrur of the north east coast of India (Fig.1) are dealt with.
Studies on the distribution, abundance and stock size of priacanthids
all along the Indian waters were undertaken. Taxonomic studies of the
priacanthid species encountered during the study from the Indian waters
is also attempted
Description:
Department of Industrial Fisheries, Cochin University of Science and
Technology
Baskar, B K; Dr.James, P S B R(Cochin University of Science and Technology, June , 1991)
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Abstract:
The distribution of the holothurian H. KH.) scabra indicated its availability all along coastal areas on
Palk Bay from Rameswavam to Mallipattinam and along the Gulf of Hannah coast from Pamban to Ervadi and Tuticmhin,'at 4~2O m depth.The major fishing for holmthurians was done by skin diving at all the centres. The tallu valai was operated at Tuticorin and Vedalai and trawlevs were operated at Rameswaram.The fmod of H. KN.) scabra consists of ovganic matter which contains mud, sand, shell debris, bivalves and algae. Obsehvatinns indicated the species seems to be a n0n—se1ective feeder.
The assimilation efficiency from sediment to faeces indicated that the faecal pellets of H. KH.) scabra are semidigested.A multiple relationship was fitted between total length, total weight, gutted weight, gonad weight and maturity stages were found significant.The fishing season for holothurians commences from October to March along Gulf of Manner coast and from March to October along Palk Bay coast.The percentage of catches recorded by skin diving, trawlere and tallu valai were 80.04%, 10.27% and 9.69% respectively. Skin diving contributes to maximum catch.The holothurians landed all along the Gulf of Manner and Palk Bay coasts constitute 25.6% and 74.4% respectively. This showed that Palk Bay coast is more productive.
Description:
Central Marine Fisheries Research Institute, Kochi
John Chembian, A; Dr.Saleena, Mathew(Cochin University Of Science And Technology, January 8, 2013)
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Abstract:
With the stabilization of world finfish catches in general, and the
depletion of a number of fish stocks that used to support industrial-scale fisheries,
increasing attention is now being paid, to the so-called unconventional marine
resources, which include many species of cephalopods. One of such important
cephalopod resource is the tropical Indo-Pacific pelagic oceanic squid
Sthenoteuthis oualaniensis. It is the most abundant large sized squid in the Indo-
Pacific region with an estimated biomass of 8-11 metric tons. However, its
distribution, biology, life cycle and nutrient value in the south west coast of India
are still poorly known. So any new information of this species in the waters off
the south west coast of India has important scientific significance for effective
and rational utilization of this Oceanic fishery resources, especially during the
time of depletion of shallow water resources. In view of that this study
investigated different aspects of the Sthenoteuthis oualaniensis, such as
morphometry, growth, mortality, maturation, spawning, food, feeding and
biochemical composition in the south west coast of India to understand its
possible prospective importance for commercial fishing and management of its
fishery
Description:
School of Industrial Fisheries
Cochin University of Science and Technology
Clara, Margret Katticaran; Dr.Mohammed Salih,K Y(Cochin University Of Science And Technology, December , 1988)
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Abstract:
Enhancement and culture of bivalves presents an opportunity
to maximise and even increase production of many growing areas. Clam
culture is less intensive both for capital and labour, involves simple farming
and management techniques and is considered an efficient means of protein
production. Clams are efficient converters of primary production and
growth rate is fast with maximum production in 5-6 months. with culture,
production is less influenced by poor recruitment. Stable production
facilitates market development. Rivalves are being increasingly used
in bio-medical research. Culture practices would ensure uninterrupted
supplies of experimental material. Paucity of biological data restricts the development of efficient management and culture techniques of bivalves. This study was undertaken with a view to provide information on some aspects of biology of the bivalve S_. scripta which have hitherto been uninvestigated.
Description:
School of Marine Sciences,
Cochin University of Science and Technology
Sunila, George; Dr.Mohammed Salih,K Y(Cochin University of Science & Technology, March , 2000)
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Abstract:
The present investigations have considerably enhanced the existing knowledge on the biology and distribution/availability pattern of D.incarnatus in the Malippuram region. The species occurs in good concentration during October - March/April, and disappears from the area during late premonsoon and monsoon months. Recolonising the area in September, it grows fast in the subsequent months. The life span of the species is estimated to be about an year. Studies on the reproductive biology of the species have revealed that there are two spawning peaks, the major peak in February - March and minor peak, in December. The salinity regime of the area influences the reproductive activity. These observations form the original contribution in the thesis. The information on variation in water content, protein,glycogen and lipid levels in relation to reproductive cycle has helped to a better understanding of the gametogenic activity and spawning of the species. Similarly, the findings on salinity tolerance and filtration rate have shown that small sized clams exhibit greater tolerance range than larger clams, and grow at a faster rate with active metabolism. It is hoped that these information would considerably add to the present knowledge of the basic facts which are relevant to the improvement and management of the clam fishery of this region.
Description:
Department of Marine Biology, Microbiology and Biochemistry, Cochin University of Science and Technology
Annes, V H; Dr.Mohan Kumar, K(Cochin University of Science & Technology, June , 2000)
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Abstract:
The aim of the
present study is to understand the characteristics and properties of different wave
modes and the vertical circulation pattern in the troposphere and lower stratosphere
over Indian region using data obtained from the Indian Mesosphere-Stratosphere Troposphere
(MST) radar, National Center for Environmental Prediction/National
Centres of Atmospheric Research (NCEP/NCAR) reanalysed data and radiosonde observations.Studies on the vertical motion in monsoon Hadley circulation are carried out
and the results are discussed . From the analysis of MST radar data, an
overall picture of vertical motion of air over Indian region is explained and noted that
there exists sinking motion both during winter and summer. Besides, the study shows
that there is an anomalous northerly wind in the troposphere over the southern
peninsular region during southwest monsoon season.The outcome of the study on intrusion of mid-latitude upper tropospheric
trough and associated synoptic-scale vertical velocity over the tropical Indian
latitudes are reported and discussed . It shows that there is interaction
between north Indian latitudes and tropical easterly region, when there is an eastward
movement of Western Disturbance across the country. It explains the strengthening of
westerlies and a change of winter westerlies into easterlies in the tropical troposphere
and lower stratosphere. The divergence field computed over the MST radar station
shows intensification in the downward motion in association with the synoptic
systems of the northwest Indian region.
Description:
Department of Atmospheric Sciences,
Cochin University of Science and Technology
Mohammed Salih, K Y; Dr.Kurian, C V(Cochin University Of Science And Technology, April 18, 1977)
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Abstract:
It is the object of the present study to contribute so much information as possible on the biology and economy of M.casta on the south west coast of India. It includes investigations on the growth of the species in three dimensions.
Description:
Department Of Marine Sciences,Cochin University Of Science And Technology
Kuttyamma,V J; Dr.Kurian, C V(Cochin University of Science and Technology, 1978)
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Abstract:
Very little is known about the tolerance of the pensoid prawns in Indian waters under varying environment conditions ,except for a note on the salinityon
The growth of the juvenile papacus indicus by sreekumaran nair and krishnankutty there seems to be no work on this aspect besides the oxygen consumption of metsponecus dobsoni which is a major constituent of prawn fishery in this region has not been studied so far.T he present work comprises studies on the occurrence and abudance of penacid prawnsin two major estuaries in Kerala the kayamkulam lake and cochin backwaters the salinity and tempeture tolerance the effect of salinity on the growth of three comercially important prawns of kerala namely pensecus indicus, ,metaponaeus dobsoni, M monoceros and the respiratory metabolism of M. dobsoni.
Description:
School of Marine Science, Cochin University of Science and Technology