164 research outputs found
സമുദ്രത്തിനടിത്തട്ടിലെ മത്സ്യങ്ങള് (Demersal finfish resources)
Fish based on their depthwise distribution may be
grouped mainly as pelagic and demersal, the former occupying
surface waters and the latter the neretic areas in the
continental shelf. Demersal fish though generally occupy the
sea floor, feeding on the benthic organisms and detritus,
perform vertical and horizontal migration in search of their
feeding and breeding grounds. Most of them lay their eggs in
the surface waters or in the intermediate depths. The eggs after
their larval phase return to the bottom to lead a demersal life
Marine fishery resources of Orissa-An overview
Orissa has a coastline of 480 Km which constitutes about 6% of the coast of India. According to an estimate by CMFRI (2007), Orissa has a total of 57 marinefish landing centres, 641 fishing villages and about 1.21 lakh active fisherfolk who operate mechanised (3577 numbers), motorized (4719 numbers) and non-motorized (15444 numbers) fishing crafts. Exploratory surveys carried out along the northeast coast of India indicated that Orissa (Lat. 17.75°N to 22.5°N; Long. 81.5° to 87.6°E) is the most productive State in terms of bottom trawl fishery resources followed by Andhra Pradesh and WestBengal. This paper focuses on the catch trend of marine fisheries of Orissa with special emphasis on the gear-wise and resource-wise landings during 2005 and 2006 based on the data collected by Fishery Resources Assessment Division of CMFRI, Kochi and analysed through an Inhouse Research Project entitled ‘‘Appraisal of Marine Fisheries of Orissa’’
Demersal fishery resources of India - Winter School on Impact of Climate Change on Indian Marine Fisheries held at CMFRI, Cochin 18.1.2008 to 7.2.2008
The neritic waters along the continental shelf of the Indian EEZ is endowed with a rich abode of
demersal finfish resources contributing to about 27.5 % of the total marine landings of the country. The
demersal finfishes represented by a total of 23 groups and 71 commercially important species by virtue of
their multifarious uses contribute substantially both as a protein supplement and to the revenue generation
of the nation. Besides, the island ecosystems of Lakshadweep and Andaman & Nicobar have rich potential
of marine ornamental fish resources, which by their aesthetic value are very much in demand for aqariculture
both in India and abroad. Nevertheless, these invaluable fishery resources are subjected to wider fluctuations
and/or depletion because of the adversities caused both by fishery related and non-fishery related factors.
The prospects and problems of demersal finfish fishery in India are examined here with possible managerial
measures so as to sustain the fishery
Demersal fishery resources of India – an update- Winter School on Towards Ecosystem Based Management of Marine Fisheries – Building Mass Balance Trophic and Simulation Models
The continental shelf of Indian EEZ extending upto 200 m depth is a rich abode of a
variety of demersal finfish resources contributing substantially to the total marine fish
production in the country. The major demersal fin fish resources are the elasmobranchs,
major perches, catfishes, threadfin breams, silverbellies, sciaenids, lizardfishes, pomfrets
,bulls eye, flatfishes, goatfish and white fish. A review of the literature shows that the
demersal fisheries in India had been growing in a phased manner during the past 5 decades
thanks to the development envisaged through different 5 year plans since the country`s
attaining independence. On the flip side we have several issues adversely affecting the
increase in production of the resources such as growth overfishing, recruitment
overfishing,increased operation of units through multiday fishing, scraping the benthic
biota etc.In this chapter, an attempt is made to examine the present status and future needs
of the demersal fisheries sector of India
നമ്മുടെ സമുദ്രമത്സ്യ സമ്പത്തിൻറെ സംരക്ഷണവും കൈകാര്യതയും (Conservation and management of our marine fish resources) Malayalam
നമ്മുടെ സമുദ്രമത്സ്യ സമ്പത്തിൻറെ സംരക്ഷണവും കൈകാര്യതയു
तटीय समुद्री आवास व्यवस्था की पर्याबरणीय अवनति इसके कारण और सुधार
कृपया पूरा लेखा पढ
On the occurrence of Decapterus macrosoma in trawl catches at fisheries harbour, Cochin
The scads (Decapterus spp.) locally known as 'Thiriyan' forms an important carangid fishery in 'trawls' at Fisheries Harbour, Cochin contributing about 45.09 and 60.67 % of the carangids caught in trawls during 1987 and 1988 respectively. D. macrosoma contributed upto 50% of the catches with the maximum catch per effort of 44.50 kg. This species represented by an abundant catch of juveniles and sub adults also contributing upto an estimated catch of 2,941 kg (catch/effort: 17 kg)
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