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Please use this identifier to cite or link to this item:
http://krishi.icar.gov.in/jspui/handle/123456789/62679
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DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kizhakudan,Shoba Joe | - |
dc.contributor.author | Mohanraj,G | - |
dc.contributor.author | Batcha,Hameed | - |
dc.contributor.author | Rajapackiam,S | - |
dc.date.accessioned | 2021-09-16T05:25:54Z | - |
dc.date.available | 2021-09-16T05:25:54Z | - |
dc.date.issued | 2010 | - |
dc.identifier.citation | Not Available | - |
dc.identifier.issn | Not Available | - |
dc.identifier.uri | http://krishi.icar.gov.in/jspui/handle/123456789/62679 | - |
dc.description | Not Available | en_US |
dc.description.abstract | Rays are important components in the elasmobranch landings by different gears at Chennai fisheries harbour, contributing about 75.4% to the annual average elasmobranch landings. The annual average catch of rays during 2002-‘07 was 588.3 t and the maximum catch of 1297.4 t was recorded in the year 2002. Eleven species contributed a major portion to the landings of rays by trawlers at Chennai, among which Himantura jenkinsii dominated the catch, forming 38.6% and H. imbricata, 8.0%. The disc width (DW) range of H. imbricata in the landings was 110-229 mm and 130-289 mm for males and females, respectively. The annual average mean size was greater in females. The annual average sex ratio (M:F) was 1:1.11. The disc width-weight relationships were W = 0.00022DW2.676 and W = 0.00005DW2.965 for male and female, respectively. Analysis of covariance showed that the slopes differed significantly, at 5% level, between the sexes. More than 95% of fishes sampled were in wellfed condition. Analysis of gut contents revealed H. imbricata to be a benthic carnivore feeding mostly on small crustaceans, cephalochordates, molluscs, polychaetes and small fishes. | en_US] |
dc.description.sponsorship | Not Available | - |
dc.language.iso | English | - |
dc.publisher | MBAI, Cochin | en_US |
dc.relation.ispartofseries | Not Available | - |
dc.subject | Chennai | en_US |
dc.subject | ray fishery | en_US |
dc.subject | Himantura imbricata | en_US |
dc.subject | disc width-weight relationship | en_US |
dc.subject | gut contents | en_US |
dc.title | Ray fishery by trawlers off Chennai and some aspects of biology of the scaly whipray Himantura imbricata (Bloch & Schneider, 1801) | en_US |
dc.title.alternative | Not Available | - |
dc.type | Article | en_US |
dc.publication.projectcode | Not Available | - |
dc.publication.journalname | Journal of the Marine Biological Association of India | - |
dc.publication.volumeno | 52 | - |
dc.publication.pagenumber | 92-95 | - |
dc.publication.divisionUnit | Not Available | - |
dc.publication.sourceUrl | http://eprints.cmfri.org.in/5841/1/12._Sho.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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