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Please use this identifier to cite or link to this item:
http://krishi.icar.gov.in/jspui/handle/123456789/58570
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Achayya,P | - |
dc.contributor.author | Vijayakumaran,K | - |
dc.contributor.author | Reuben,S | - |
dc.contributor.author | Prabhakar,R V D | - |
dc.date.accessioned | 2021-08-18T09:33:50Z | - |
dc.date.available | 2021-08-18T09:33:50Z | - |
dc.date.issued | 1997 | - |
dc.identifier.citation | Not Available | - |
dc.identifier.uri | http://krishi.icar.gov.in/jspui/handle/123456789/58570 | - |
dc.description | Not Available | en_US |
dc.description.abstract | Length -weight relationship, relative condition factor, growth, maturity, mortality, exploitation, fishery, food and feeding and sex ratio of Trichiurus lepturus from Visakhapatnam were studied. Length -weight relationship obtained for male and female was, male : W = 0.000273 L3245862 (r=0.9961) and female : W = 0.000223 L3298627 (r = 0.9950). Growth parameters estimated for von Bertalanffy's growth function were, LM = 106.8251 cm, K = 0.6117 per year and to = -0.1399 years. The fish attained maturity at 42.5 cm and has a longevity of 4.9 years. The total mortality and fishing mortality were estimated as 2.4170 and 1.5236 respectively. The exploitation ratio, E = 0.6304 and exploitation rate, U = 0.5741, indicated overexploited state of the stock. The seasonal abundance in major gears and the annual abundance in the small trawler landings during the decade 1982 -'91 are also presented. Growth performance index, PHI1 (<>') for this species was calculated based on five sets of parameters given by different authors and a mean <>' value was arrived at. The fish was found to be a voracious carnivore, often exhibiting cannibalism. Incidence of differential fishing noticed in this case is briefly discussed. | en_US] |
dc.description.sponsorship | Not Available | - |
dc.language.iso | English | - |
dc.publisher | CMFRI/ICAR | en_US |
dc.relation.ispartofseries | Not Available | - |
dc.subject | Fish biology | en_US |
dc.subject | Trichiurus lepturus | en_US |
dc.subject | Visakhapatnam | en_US |
dc.title | Biology and exploitation of Trichiurus lepturus Linnaeus from Visakhapatnam waters | en_US |
dc.title.alternative | Not Available | - |
dc.type | Article | - |
dc.publication.projectcode | Not Available | - |
dc.publication.journalname | Indian Journal of Fisheries | - |
dc.publication.volumeno | 44 | - |
dc.publication.pagenumber | 101-110 | - |
dc.publication.divisionUnit | Not Available | - |
dc.publication.sourceUrl | http://eprints.cmfri.org.in/198/1/Article_03.pdf | - |
dc.publication.authorAffiliation | Not Available | - |
dc.ICARdataUseLicence | Not Available | en_US |
dc.publication.submitter | krishi.admin2@icar.gov.in | - |
Appears in Collections: | FS-CMFRI-Publication |
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