Course material (FT)

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    PROTECTION OF WOODEN FISHING CRAFT
    (Central Institute of Fisheries Technology, Cochin, India, 1998) Ravindran, K.
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    LOW ENERGY FISHING TECHNIQUES
    (Central Institute of Fisheries Technology, Cochin, India, 1998) Mathai, P.G.
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    Glossary of terms for fishing vessels
    (Central Institute of Fisheries Technology, 2000) Ashraf, M.P.
    It is a glossary that explaining the brief details about the terms regarding to fishing vessels.
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    Commercial fishing methods
    (Central Institute of Fisheries Technology, 2000) Kunjipalu, K.K.
    The bulk of the world's seafood supply continues to come from the stocks of ocean fish and other marine creatures. To many the methods and equipments used by fisherman appear to be crude and unsophisticated. Technology, sophistication, complexity and investment in vessels and equipment, together with techniques of finding fish and onboard transportation of fish and post harvest technologies are showing rapid growth. Increasing investment in research and development is continuously improving the efficiency of operations and conditions under which fishermen work.
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    Classification of fishing boats
    (Central Institute of Fisheries Technology, 2000) Edwin, L.
    The term "fishery vessel" comprises mobile floating objects of any kind and size operating in fresh water, brackish water and marine areas and used for catching, transporting, landing, preserving and/or processing of fish, shell fish and other aquatic vessels performing other functions related to fisheries such as supplying, protecting, rendering assistance or conducting research or training. The term "Fishing vessel" is used to distinguish fishing vessels engaged in catching operations. The remaining fishery vessels are covered by the term "non fishing vessels".
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    Traps, pots and squid jigs
    (Central Institute of Fisheries Technology, 2000) Meenakumari, B.
    A fishing gear is designated according to the type of fish sought for and its behaviour as well as to the mode of operation of the gear.
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    Design concept, rigging and operation of pelagic and semi-pelagic trawls
    (Central Institute of Fisheries Technology, 2000) Vijayan, V.
    Technological advances are essential part of any industry for furtherance and development and fishing can be no exception.The increase in production in capture fisheries was 6.0 to 6.5% per year. So that it causes the reduction in production. Increasing scarcity of fish was met with new technology to improve the performance of the gear, fleet and vessels. Diversification of fishing methods has contributed to this development and semipelagic trawling is one among diversified trawling methods. Target specific trawls were to meet this requirement and pelagic and semipelagic trawls contribute enormously in this direction.
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    Ring seine, shore seine, boat seine, stake nets, and dip nets
    (Central Institute of Fisheries Technology, 2000) Mathai, P.G.
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    Principal dimensions and terms realting to fishing boats
    (Central Institute of Fisheries Technology, 2000) Edwin, L.
    There are several number of terms and dimensions related with a fishing boat. These are explained in a brief way here.
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    Design of purse seines and fishing method
    (Central Institute of Fisheries Technology, 2000) Kunjipalu, K.K.
    Purse seine is a long wall of webbing without prominent bunt or bag. Webbing almost hangs straight down between float and lead lines. Main body is with uniform mesh. After encircling, seine is pulled aboard from one end only to concentrate fish on the other end.
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    Hull maintenance of fishing boats
    (Central Institute of Fisheries Technology, 2000) Pillai, A.G.G.
    The mechanised fishing boats operating in the sea, which is an aggressive environment , need protection against onslaught of marine corrosion, marine fouling and fungal deterioration. The forces that causes deterioration of material are also constantly acting in nature and the main concern is to evolve technically feasible and economically viable methods to arrest them. Apart from the high capital investment on the development and expansion of fishing boats, money and time are spent annually on its proper maintenance so as to obtain a prolonged trouble free life and uninterrupted service from them.
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    Basic principles in fishing gear designs and fish capture
    (Central Institute of Fisheries Technology, 2000) Kunjipalu, K.K.
    Many factors enter into the choice of the fishing method and gear used to catch particular species of fish in a particular area. Some of them are discussed here.
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    Deck layout and onboard facilities for trawlers, purse seiners and longiliners
    (Central Institute of Fisheries Technology, 2000) Manohardoss, R.S.
    The design, construction and operation of fishing vessels deserve the most important attention. The deck layouts and onboard facilities of different types of fishing vessels namely Trawlers, Purse Seiners and Longliners are described in this paper.
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    Wood preservation
    (Central Institute of Fisheries Technology, 2000) Edwin, L.
    Timber in various forms is subjected to biodeterioration. Traditional crafts are mostly affected by wood rotting fungi; and mechanised boats by marine wood boring and fouling organisms. Fishermen resort to various types of indigenous preparations, majority of which are found not giving proper protection as established by CIFT's investigations. Chemical wood preservatives with toxic ingredients, when properly treated can give adequate protection to wooden structures against decaying organisms.
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    Attraction of fish by lights, electricity, fads and artificial reefs
    (Central Institute of Fisheries Technology, 2000) Meenakumari, B.
    Now a days fishing is done in various ways. To attract fish to this purpose is also have a great sense.For this we have variety of methods invented. Fishing with lights, electricity, fads etc. are some of them.
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    Fishing gear materials
    (Central Institute of Fisheries Technology, 2000) Meenakumari, B.
    Textile fibres form the basic material for the preparation of netting yams. These can be broadly classified as natural fibres and man made fibres. Natural fibres are grouped into two, fibres of animal origin and vegetable origin of which the latter alone has significance in the fishing industry. Man made fibres are classified as natural polymers manufactured by the alteration of natural polymers like cellulose and protein and synthetic polymers obtained by synthesis or chemical process of which synthetic polymers are used for netting yams.
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    Otter boards - types and functions
    (Central Institute of Fisheries Technology, 2000) Vijayan, V.
    Otterboards are devices used for stabilising the trawl nets rigged with them and are also hydrodynamically dependant means of holding the net mouth open. Before the advent of otterboards, the net mouth was kept open by a rigid and self supporting structure, the resultant gear being known as beam trawl. Introduction of steam power to fishing vessel permitted faster and better controlled towing speed in comparison to the wind energy and this development opened up introduction of otterboards as spreading devices to replace the rigid beam. The paper is explaining the details about otterboards.
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    Design concept, rigging and operation of pelagic and semi-pelagic trawls
    (Central Institute of Fisheries Technology, 2000) Vijayan, V.
    Mid-water trawls also known as floating trawls or pelagic trawls have been introduced in the commercial fisheries to exploit concentration of fish in water layers away from the sea-bed. Detailed study on this is discussed here.
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    Electronic instruments for fishing gear research
    (Central Institute of Fisheries Technology, 2000) Ramakrishnan, K.
    Technological improvements especially in the field of marine electronics has contributed to the development of very efficient electronic instruments for precise measurement of the operational parameters.
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    Selectivity in trawl
    (Central Institute of Fisheries Technology, 2000) Varghese, M.D.
    Trawl is a conical bag, made from several panels of webbing. The bag like body of the net, tapers into a narrow tubular structure called cod end which forms the terminal part. The net is towed along the bottom of the sea or through column waters with its mouth open. The fish or prawn, which encounter the net, enters through the mouth and finally collected in the cod end.