भारत में उत्तरदायित्वपूर्ण सामुद्री मात्स्यिकी विकास

कृपया पूरा लेख पढे

Pelagic sharks by-catch in the tuna longline fishery of the Indian EEZ

Several species of pelagic and oceanic sharks are caught by the tuna longliners of FSI while surveying the oceanic tuna resources in the Indian EEZ. Though the sharks are not targeted species in tuna longlining, they constitute a major share of the catches. The sharks hooked could be, therefore, treated as by- catches or incidental catches of the tuna longline fisher

Current Status of fisheries for tunas and tuna-like fishes in India

The Indian tuna fishery comprises two distinct segments, the coastal fishery and the oceanic fishery. The main components of the coastal tuna fishery are the gillnet fishery around mainland India, in which different species of tunas and tunalike species occur, and the pole-and-line and troll line fisheries exploiting skipjack and young yellowfin tuna around the Lakshadweep Islands. The oceanic fishery uses exclusively longlines, targeting large deep-swimming yellowfin and bigeye tunas. The status of the coastal fishery was last reviewed by Pillai et al. (1995), and that of the oceanic fishery by Somvanshi and John (1995). The present paper gives an update of the national tuna fishery, both the coastal and oceanic segments, and its recent trends. All three groups of resources (tunas, billfishes and seerfishes) are covered

Case of complete albinism in marine cat fish Arius caelatus (Valenciennes)

Complete albinism in the marine cat fish, Ariiis caelatus (Val.) is reported for the first time

New record of the Grub fish, Parapercis albogutta (Günter) from Bombay waters

A Grub fish, Parapeicis albogutta (Gunther) has been recorded from Bombay waters for the first time. Various morphometric and meristic counts have been described

Assessment of oceanic tuna and allied fish resources of the Indian exclusive economic zone based on exploratory surveys

The present paper overview the results of survey on marine resources of the Indian EEZ including tuna and eillied fish species, their distribution, catch rates, seasonality, assessment of stocks etc. supplemented by the chartered vessels' data. The paper also presents the trends in the tuna fishing and future survey programme of the Fishery Survey of India

A case study of the economics of a traditional prawn culture farm in the North Kanara district, Karnataka, India

Economics of a traditional prawn culture farm situated on the northern bank of Badagani river near Haldipur in the North Kanara district, Karnataka, India is studied. The farm extends over 0.78 hectare and has a single wooden sluice gate. Culture of Penaeus indicus, P. Monodon, Metapenaeus monoceros and M. Dobsoni was initiated in January and continued up to may 1979. The traditional practice of trapping and holding was followed in stocking the farm. In all, 375 kg of prawns valued at Rs. 10,470.00 !were harvested of which. 52% comprised P. indicus and P. monodon. A profit of Rs. 7,770.00 was earned by the entrepreneur after meeting expenditure on the farm. An overall review of the economics of prawn culture in the area is given

Application of LANDSAT MSS data in ocean colour sensing

Landsat MSS data off Cochin Coast was analysed ond on attempt made to look in to the relationship between MSS gray values and concentration of pigment/particulate matter. MSS band 4 and 5 showed the maximum gray value range as compared to band 6 and 7. A density sliced image of band 4 was generated in the form of Q color coded image showing the gray levels corresponding to various pigment levels

Oceanographic parameters and their relationship to fish catch estimation: a case study in coastal waters north of Cochin during 1981

Coastal waters in the North of Cochin was selected for the present study. This area is well known for the occurrence and abundance of fish schools of oil sardine (Sardinella Iongiceps) and mackerel (Rastrelliger Kanagurta) allowing the period after SW monsoon in the Indian Ocea

Remote sensing of ocean colour and targeting of fish schools from airborne sensors

Studying the well known pelagic school of oil sardine and mackerel in the Arabian sea of the Indian Ocean. A high productivity is reported in the oceanic waters of Cochin preceding SW monsoon. A remote sensing experiment was carried out in the oceanic waters over North of Cochin coast involving vessel-based sea truth data collection synchronous to aircraft overflights during October, November and December 1981