Tuna live-bait fishes - their exploitation, conservation and management in Lakshadweep

The total annual catch of baitfishes form pole and line fishing areas of Lakshadweep is estimated to be 1251. At Minicoy, the average annual catch is estimated at 9.11 and at Agatti it is estimated to be 51 t. Data from other baitfish fishing areas such as Suheli, Valiapani and Cheriyapani are virtually non-existent. Management options suggested earlier include the collection of fishery data from more areas, studying the biology and understanding the stock of exploited species, culture of suitable species and maintaining the health of the coral reefs of the islands. Future thrust areas for research to elucidate the factors that determine the baitfish fishery include a full review of the existing fishery and development of a baitfish statistics collection system

Marine Ornamental Fishes

Ornamental fishes are fascinating for their brilliant and attractive colouration/pattern, tiny size and their ability to adapt in confined aquarium tanks. These fishes are a fancy for the people all over the world and aquarium fish keeping has been developed as a hobby by many. The world ornamental fish industry has been growing rapidly over the years. The total turnover, has been estimated over 5 billion US $, of which India's contribution is less than 1%

Problems and prospects of marine fisheries at Lakshadweep

The live-bait fishes play a pivotal role in the development and success of the pole-and-line fishery in Lakshadweep. The total live-bait fish catch from this insular area is estimated to be 125 t in recent years. The major groups exploited at Minicoy are clupeids, caesionids and apogonids. The clupeid, Spratelloides delicatulus is the only species caught as bait in the northern islands. The major fishing areas for live-baits are Minicoy, Agatti, Suheli, Perumal Par, Bitra, Valiapani and Cheriyapani. Both meteorological and hydrographical factors influence the recruitment of migratory groups to the lagoon, while resident forms depend on the recruitment success.The Lakshadweep sea is estimated to have an annual fisher

STRUCTURAL AND SURFACE MORPHOLOGICAL INVESTIGATION OF FORMATION STAGES OF HIGHLY (002) ORIENTED ZnO FILMS ON GLASS SUBSTRATES BY SPRAY PYROLYSIS METHOD

ZnO thin films were coated on amorphous glass substrate at various temperatures in the range 160-500 0 C by spray pyrolysis method. The as deposited films were characterised by using XRD and SEM. Wurtzite phase of ZnO was formed at a substrate temperature of 400 0 C, highly oriented (002) phase was developed with respect to increase of substrate temperature from 450 to 500 0 C. Morphological and growth mode of these films were analyzed with respect to structural orientation of films from wurtzite to highly (002) oriented phase. Present study reveals that substrate temperature was one of the important parameters which determine the crystalline quality, population of defects, grain size, orientation and morphology of the films

Live-bait resources and development

The success of the pole and line fishery of Lakshadweep depends, among other factors, directly on the availability in sufficient quantities of suitable live-bait fishes around the islands. Information on the live-bait resources of Lakshadweep is limited to a few reports from Minicoy- Jones (1958, 1964) described the fishing method, storage and utilisation of bait fish and Iisted the various species of live-bait fishes of Lakshadweep. Jones (1961 a, 1961 b) has predicted the potentialities of Spratelloides delicatulus and S. japonicus as live-bait for pole and line fishery for skipjack much earlier than mechanised fishing was introduced in the northern islands of Lakshadweep. Thomas (1964) made some observations on the fluctuations in the live-bait fishes at Minicoy. Fluctuations in the seasonal availability of live-baits at Minicoy during the years 1981-85 has been presented by Pillai et al. (1986). However, details of exploited bait fish resources and seasonal abundance of different bait species around the various islands is still lacking

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Problems and prospects of marine fisheries at Lakshadweep

The Lakshadweep sea is estimated to have an annual fishery potential of about 90,000 tonnes while the present yield is only about 6000 tonnes. ' Endowed with vast lagoons and tuna-rich oceanic waters, I fishing is an important component of the economy of Lakshadweep. Tunas form 87% of the fishery and is caught mainly by the pole-and-line technique-:-This method involves locating the tuna shoals, then attracting by chumming with live bait and water spraying, and finally, catching the fish using poles and lines with barbless hooks

Successful seed production of Cobia, Rachycentron canadum, in India

Climate change is affecting farming systems worldwide. It is expected that the impacts will be disproportionately felt by small scale farmers who are already amongst the most poor and vulnerable members of the society. NACA’s efforts to map farmers’ perceptions and attitude towards climate change impacts and adaptive capacities to address these impacts in four Asian countries including the shrimp culture practices in India (CIBA-NACSA/MPEDA-NACA project) through the ‘Aquaclimate’ project is highly admirable. I hope the project will provide farmers with strategies to maintain their resilience in the face of climate change

Successful seed production of cobia Rachycentron canadum and its prospects for farming in India

Availability of adequate quantity of high value marine finfish seed is the major prerequisite for initiation and expansion of finfish mariculture. Breeding and seed production of marine finfishes of high value have been expanding in recent years internationally. Large quantities of hatchery produced seeds meet the need for sea cage farming in many countries (Hong and Zhang, 2003). It is well understood that the first step towards seed production technology is the development of broodstock. Prior to 1980s, broodstock of finfishes were grown mainly in indoor concrete tank