Kandan, S; Dr.Rengarajan, K(Cochin University of Science And Technology, November , 1994)
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Abstract:
This Thesis contains a detailed account of the results of
the investigations on the "Studies on sea cucumbers of Minicoy,
Lakshadweep" from the Arabian Sea, carried out from January
1990 to December 1991. The results are presented and
discussed in six chapters, preceded by an "lntroduction",
"Review of literature" and "Materials and Methods". A brief account on the importance of sea-cucumbers, its general morphology, present status of sea-cucumbers and their fishery in India and the major objectives of the present study are given in the "lntroduction" "Review of Literature" has covered and reviewed almost all available published reports and informations on sea-cucumbers on global basis, with special emphasis on Indian region and particularly in Minicoy Island.
The Minicoy Island topography particularly the lagoon and
reef flat area, discretion of sampling stations, survey on
sea-cucumbers in space and time, analysis of samples both
in the field and laboratory, statistical analysis of data,
etc. and the period of study are given under "Materials and
Methods.
Description:
School of marine sciences, Central institute of fisheries technology, Cochin University of Science And Technology
Prasannakumar, S; Dr.Kurup, P G(Cochin University Of Science And Technology, April , 1985)
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Abstract:
Sediment transport in the nearshore areas is an
important process in deciding the coastline stability. The
design and effective maintenance of navigable waterways,
harbours and marine structures depend on the stability of
the sediment substrate and the nature of sedimentation in
the nearshore zone. The nearshore zone is a complex
environment and the exact relationships existing between
water motions and the resulting sediment transports are not
well understood. During the rough weather season, when the
sediment movement is considerable, processes occurring in
the nearshore area are much less understood. Moreover,
there is a general lack of field measurements, especially
during the time of severe storm conditions. The increasing pressures and the concern on the
preservation of the valuable coastal environment have
led to the development of shore protection programmes.
Conservation not only demands knowledge of what needs to
be done, but also requires the basic processes to be fully
understood. Considering the fragile nature of barrier
beaches and intense occupancy of these areas by man, these
coastal features have long been a subject of study by
coastal oceanographers, geomorphologists and engineers.
The present study is an attempt to understand the
sediment movement in relation to beach dynamics, especially
in the surf zone, along some part of Kerala coast and the
response of the beaches to various forcing functions over
different seasons
Description:
School Of Marine Sciences
Cochin University Of Science And Technology
Vipin, P.M; Dr. Boopendranath, M.R(Cochin University of Science and Technology, June , 2015)
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Abstract:
Available information on abundance of myctophids and their utilisation
indicate that there is excellent scope for development of myctophid fisheries in
Indian Ocean. Most of the conventional fish stocks have reached a state of full
exploitation or over-exploitation. Hence there is need to locate new and
conventional fishery resources in order to fill in the supply-demand gap, in the
face of increasing demand for fish.
Information on length-weight relationship, age and growth, spawning
season, fecundity and age at maturity and information on bycatch discards are
required for sustainable utilization of myctophid resource in the Indian Ocean
Description:
A study about global fishery resources and its production
Sundaresan, Pillai J; Dr.Nambisan, P N K(Cochin University of Science And Technology, February , 1989)
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Abstract:
The present study is an attempt to elucidate the sedimentation regime
of the harbour and its environment. These investigations include
detailed studies on the hydrography' of the harbour region of the
estuary, estuarine circulation, spatial and temporal variations of the
amount and texture of bottom sediments. A note on the dredging is
also given in the Annexure .The thesis is presented in six chapters
Description:
School of Marine Sciences, Cochin University of Science and Technology
Tanuja, Rajeswary; Dr.Shahul,Hameed M(Cochin University of Science and Technology, April , 1996)
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Abstract:
The thesis is a study undertaken to understand the distribution pattern of Q nega in Cochin
waters for better exploitation of the resource and to learn the biological aspects of the animal which has a direct bearing on its utilization for producing different products .The study also presents a thorough knowledge on the size groups available during different seasons for judicious exploitation and utilization of the resource and the changes in the biochemical composition of Q nega during different seasons so as to utilize it properly for producing suitable products throughout the year. The thesis also tests the suitability of the material for producing different products and to test the acceptability of the same for human consumption. The study also aims to show that Squilla can be utilized for the production of industrial products like chitin and chitosan.
Description:
School of Industrial Fisheries, Cochin University of
Science and Technology
Anney,Mathew K; Dr.Antony, A(Cochin University Of Science And Technology, October 31, 1988)
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Abstract:
Based on the adaption of fishes to their habitat, they are divided
into three ecological groups - marine, fresh water and estuarine or brackish
water forms. Estuarine fishes inhabit the less saline region of the sea,
estuaries and other inland waters. These fishes are more subjected to pollution
than fresh water fishes or marine fishes as they encounter pollutants present
in the outgoing river water and the incoming sea water during low and high
tides respectively. So, the study of the biology of the estuarine fishes has
become unavoidable to assess their suitability in aquaculture.
The development of both capture and culture fisheries related to any
brackish water system is dependent on the availability of scientific‘ data on the
various biological factors in respect of the different species. Such a study on
fishes will be helpful in formulating suitable schemes for the management of
brackish water for capture and culture fisheries. It was therefore felt that
a study of the biological and biochemical aspects of two estuarine fishes Megalops cyprinoides Broussonet and Scatophargus Bloch which are not
fully exploited in aquaculture programmes, was worth undertaking. The present
study is expected to advance our knowledge on the biology of the two fishes
which are very desirable for brackish water fish farming
Description:
School of Marine Sciences,Cochin University Of Science And Technology
John,Mohan; Dr.Shahul,Hameed M(Cochin University of Science and Technology., April , 2007)
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Abstract:
In the present study two aspects of cephalopod fishery such as (i)
landings and (ii) utilization including export of cephalopods from Indian are
dealt with. Under the topic landings, craft, both traditional and mechanized
and fishing techniques employed for capturing cephalopods are discussed.
General trend in cephalopod landing in India and particularly south west coast,
species composition, description and geographic distribution of important
species of cuttle fishes, squids and octopus and the distribution and abundance
of cephalopods along the continental shelf of the south west coast are also
discussed. Some biological aspects like population parameters, maturation and
spawning, food and feeding of the two representive species of cuttle fishes and
squid viz, Sepia pharaonis and Loligo duvauceli are studied.Under utilization, general handling and processing of various frozen
cephalopods products for exports and commercial operation in a typical plant
are studied. The export of cephalopod products since its commencement is
studied in detail and market strategy for enhancing the export are suggested.
Description:
School of Industrial Fisheries,
Cochin University of Science and Technology
Rajagopalan, M S; Dr.Silas, E G(Cochin University Of Science And Technology, July 18, 1992)
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Abstract:
The situation in the backwaters of Kerala, which
reportedly had about 70,000 ha of mangroves, is unique in the sense that
there has been a total conversion to other uses such as paddy cultivation,
coconut plantation, aquaculture, harbour development and urban development
In order to save and restore what is left over national and international
organisations are mounting pressure on scientists and policy makers
to work out ways and means conserving and managing the mangrove
ecosystems.
In this context, it has been observed in recent years that mangrove
vegetation has remained intact in isolated pockets of undisturbed areas
in the Cochin estuarine system and also that there is resurgence of
mangroves in areas of accretion and silting. The candidate took up the
present study with a view to make an inventory of the existing mangrove
locations, the areas of resurgence, species composition, zonation and other
ecological parameters to understand their dynamism and to suggest a
mangement plan for this important coastal ecosystem
Description:
School Of Marine Sciences
Cochin University Of Science And Technology
Joseph,K J; Dr.Ramachandran Nair,P V(Cochin University Of Science And Technology, August , 1988)
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Abstract:
The present study is concentrated on a composite group of algae of phy—
toplankton. The algae in the aquatic environment are the most important of
all ch1orophy1l- bearing life on earth on which considerable attention is being
given on account of their supreme status in the aquatic food chain. Though the
higher plants serve as the major primary producers in the terrestrial biocycle,
the primary producers in the aquatic ecosystem especially in the marine environment-" assume unparalleled significance ‘because of their c'ontribution.to the
high magnitude of production generating the fishery resources
Description:
Division Of Marine Biology, Microbiology And Biochemistry
School Of Marine Sciences,Cochin University Of Science And Technology
Aquaculture is the dynamic pursuit of production of organisms
from water a process analogous to agriculture on land. The field of
aquaculture is an emerging bioindustry, based upon the culture and husbandry
of economically utilizable aquatic organisms. Of late, there has been a
global upsurge for aquaculture, the main reasons for which include the
requirement of protein source for the increasing world population, the decision
by various world nations to increase the fish yield by developing unutilized
or partially utilized water bodies and depletion of natural stock which is
evident in recent years due to excessive exploitation .The present study has been taken up on the reproductive physiology of the female grey mullet, M. cephalus. The thesis is presented in seven chapters. In the present study, variations in the
major biochemical parameters namely, moisture, proteins, lipids, carbohydrates
cholesterol, carotenoid, ash, calcium and iron in four tissues E. muscle,
liver, ovary and bloodserum of cephalus have been analysed at different maturity stages.
Description:
Centre of Advanced Studies in Mariculture,
Central Marine Fisheries Research Institute,
Cherian, C J; Dr.Kurian, C V(Cochin University Of Science And Technology, April 12, 1977)
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Abstract:
The present work comprises studies on the salinity tolerance
and respiratory metabolism of a mood-boring sphaeromid, Sphaeroma
annandalei, Stabbing and two free living,foulers of the family
Cirolanidae, Cirolana fluviatilis Stabbing and C. uilleyi Stabbing.
Except for the systematic accounts and general observations by
Pillai (1961) and the preliminary studies on the salinity tolerance
and respiration of C. fluviatilis by Nagabhushanam and Gopalakrishnamurthy
(1965, 1965a) very little is known about these isopods From
Indian waters. Studies by John (1968) on the habits, structure,
and development of Sphaeroma terebrans and by Cheriyan (1973) on the
eoéphysiology of the same are the recent major contributions on this
interesting group of animals. 5. annandalei is closely related to
S. terebrans and has been reported to occur on timber along with the
latter (Pillai, 1951). s. gggandalei is a serious pest attacking wood
along the Kerala coast, but detailed works on this species have not
been undertaken so Far
Description:
School Of Marine Sciences,Cochin University Of Science And Technology
Peter, K J; Dr.Kurian, C V(Cochin University of Science And Technology, January , 1982)
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Abstract:
Though several scientific expeditions surveyed
tha Indian ocean. their findings on larval fishes
were fragmentory and incomplete. During the
International Indian ocean expedition (1960-1965)
zooplankton samples were collected from vast area at
the lndian ocean adopting standard procedures by
participating vessels. These planktons provided an opportunity for a general study of the
zooplanltton as well as their anotomy. abundance and
distribution.. Realising the imortance of the
analysis and classification of fish larvae at the
family level being one of the most important
information required then for the Indian Ocean region
the fish larval portion sorted out from the above
zooplankton samples was allocated to the author by the
UNESCO consultative committee for the Indian Ocean
Biological centre. In spite of the emhasis laid on
The study of the family scombridae. owing to the
paucity of the scombridae material in tne collection.
much could not be done about it.However the record
and description of the very early stages of morakel larvae made in 1967 as part of this study was the first of its kind. The present study on the distribution aspects o fish larva of such large area in the Indian ocean is also unique and first of its kind