A giant sized female bull shark Carcharhinus leucas measuring

356 cm in total length with a weight of 320 kg caught by a

mechanized gillnet, was landed on 22-6-2005 at Kasimedu

Fisheries Harbour, Chennai

CMFRI, Kochi

CMFRI Digital Repository

component under the DOD-sponsored project entitled “Studieson marine mammals from the Indian EEZ and the contiguousseas”, is a significant step toward molecular inventorization ofmarine mammals in the larger interest of their conservation.5Table showing the  particulars of molecular characterizationof four cetacean species including their GenBank depositnumbers which can be accessed from the NCBI portal http://www.ncbi.nlm.nih.gov/Sl. Species Sex Place of Fragment AccessionNo. collection size of number in& Code mtDNA GenBanknumber cytb (NCBI)1 Tursiops aduncus Female Vizhinjam; 417 bp DQ232769(Bottlenose dolphin) VIZ1 204 bp DQ2327712 Stenella longirostris Female Chennai: 417 bp DQ232770(Pantropical spinner CH07 200 bp DQ232772dolphin)3 Grampus griseus Female Chennai; 396 bp DQ270178(Risso’s dolphin) CH15 197 bp DQ2701794 Physeter catodon -- Chennai; 403 bp DQ270180(Sperm whale) CHW1 172 bp DQ2701815 Stenella longirostris Male Kakinada; 402 bp DQ270182(Pantropical spinner VRC/DOL/05 221 bp DQ270183dolphin)6 Tursiops aduncus Male Chennai; 400 bp DQ270184(Bottlenose dolphin) CH04 210 bp DQ270185Orange clownfish Amphiprion percula bred atVizhinjamAdult fishes of Amphiprionpercula brought fromAndamans were successfullybred and several batches ofjuveniles produced atVizhinjam Research Centre.Incubation period for theattached eggs was 8 days.Hatching occurred at earlyhours of night between 7 and8.30 PM. The larvae reachedjuvenile stage in two weeks andwere transferred to grow-outtanks in 28-30 days. (Vizhinjam Research Centre)World record sized giant bull shark caught at ChennaicoastA giant sized female bull shark Carcharhinus leucas measuring356 cm in total length with a weight of 320 kg caught by amechanized gillnet, was landed on 22-6-2005 at KasimeduFisheries Harbour, Chennai.  The present record of bull shark C.leucas is the largestrecorded from IndianOcean as well as thelargest bull shark everrecorded in the world.The shark wasauctioned at the landingcentre for Rs. 32,000/-.Large size bull sharks are caught by the gill nets regularly and thegillnet fishermen get good revenue.  (Madras Research Centre)Damselfish bred at Mandapam CampBroodstock development and breeding of the ornamentaldamselfish Dascyllus aruanus was achieved in captivity atMandapam Regional Centre.   (Mandapam Regional Centre)Unusual colouration of inshore waters at MangaloreDuring the last week of August, the inshore waters off Hejamadi,Kapu and Uchila at Mangalore appeared discoloured and foulsmelling.  Good fishery was reported for about three days fromthese places.  Water samples and fishes were collected from theseareas and analysed.  Dissolved oxygen content in the sampleswas within the normal range and algal blooms were not observed.Fishes included soles, croakers, sandwhiting, sweetlips, flatheads,skates and rays. (Mangalore Research Centre)Loss of life at MangaloreAt Mangalore sea was turbulent even after August, causinginconvenience to the local fishermen.  Purseseines could not beoperated on several days and the multi-night units too did notoperate on regular basis. Sand bar formation at the channelentrance near Mangalore Fisheries Harbour made it verydangerous for the fishing boats to cross in and out of the channel.An accident at the channel caused 10 fishermen of the purseseineto fall out of their boat and only 6 of them could be rescued.(Mangalore Research Centre)Phytoplankton bloom off Azhikal coast (Quilon District,Kerala)A thick greenish yellow coloured bloom of diatoms Thalassioserasp. and Coscinodiscus sp. was observed in the coastal watersbetween Azhikal and Arattupuzha in the Quilon district, whichwas badly hit by recent tsunami. The SST was 24.5oC at 14:45 h,indicating the presence of upwelled water.  No mortality of finfishor shellfish noticed.  Very high  levels (17.37 µg at/l) of silicatematched with the blooming of these two species of diatoms.Nitrate and phosphate levels were also quite higher than those inthe adjacent non bloom areas, such as Thrikunnupuzha andNeendakara.  (Fishery Environment and Management Division)Extensive damages to fishing craftsOn the early hours of 7th September 2005, tidal waves inflicteddamages to the anchored crafts in the fishing villages ofSubbammapeta, Ramsettipeta and Sooradipeta of Uppada hamletin East Godavari district of AP.  The cost of repairing damagedcrafts was estimated at Rs. 2000-5000 per craft depending on themagnitude of the damage. (Kakinada Research Centre)Live Groupers transported for brood stock developmentEpinephelus malabaricus, (Malabar grouper) weighing 2 kg to6.5 kg were transported  live to Vizhinjam Research Centre ofCMFRI in oxygenated containers without any mortality, fromKarapad farm of Tuticorin Research Centre and MandapamRegional Centre for brood stock development and breedingexperiments.   (Vizhinjam Research Centre)Juveniles of Amphiprionpercula in sea anemoneCarcharhinus leucasACADEMIC NEWSPh. D.  AwardScholar Guide Title of ThesisMs. Jyothi V. Dr. P. Muthiah Induction and evaluation ofMallia Principal Scientist triploidy in CrassostreaTRC of CMFRI madrasensis(Preston)component under the DOD-sponsored project entitled “Studieson marine mammals from the Indian EEZ and the contiguousseas”, is a significant step toward molecular inventorization ofmarine mammals in the larger interest of their conservation.5Table showing the  particulars of molecular characterizationof four cetacean species including their GenBank depositnumbers which can be accessed from the NCBI portal http://www.ncbi.nlm.nih.gov/Sl. Species Sex Place of Fragment AccessionNo. collection size of number in& Code mtDNA GenBanknumber cytb (NCBI)1 Tursiops aduncus Female Vizhinjam; 417 bp DQ232769(Bottlenose dolphin) VIZ1 204 bp DQ2327712 Stenella longirostris Female Chennai: 417 bp DQ232770(Pantropical spinner CH07 200 bp DQ232772dolphin)3 Grampus griseus Female Chennai; 396 bp DQ270178(Risso’s dolphin) CH15 197 bp DQ2701794 Physeter catodon -- Chennai; 403 bp DQ270180(Sperm whale) CHW1 172 bp DQ2701815 Stenella longirostris Male Kakinada; 402 bp DQ270182(Pantropical spinner VRC/DOL/05 221 bp DQ270183dolphin)6 Tursiops aduncus Male Chennai; 400 bp DQ270184(Bottlenose dolphin) CH04 210 bp DQ270185Orange clownfish Amphiprion percula bred atVizhinjamAdult fishes of Amphiprionpercula brought fromAndamans were successfullybred and several batches ofjuveniles produced atVizhinjam Research Centre.Incubation period for theattached eggs was 8 days.Hatching occurred at earlyhours of night between 7 and8.30 PM. The larvae reachedjuvenile stage in two weeks andwere transferred to grow-outtanks in 28-30 days. (Vizhinjam Research Centre)World record sized giant bull shark caught at ChennaicoastA giant sized female bull shark Carcharhinus leucas measuring356 cm in total length with a weight of 320 kg caught by amechanized gillnet, was landed on 22-6-2005 at KasimeduFisheries Harbour, Chennai.  The present record of bull shark C.leucas is the largestrecorded from IndianOcean as well as thelargest bull shark everrecorded in the world.The shark wasauctioned at the landingcentre for Rs. 32,000/-.Large size bull sharks are caught by the gill nets regularly and thegillnet fishermen get good revenue.  (Madras Research Centre)Damselfish bred at Mandapam CampBroodstock development and breeding of the ornamentaldamselfish Dascyllus aruanus was achieved in captivity atMandapam Regional Centre.   (Mandapam Regional Centre)Unusual colouration of inshore waters at MangaloreDuring the last week of August, the inshore waters off Hejamadi,Kapu and Uchila at Mangalore appeared discoloured and foulsmelling.  Good fishery was reported for about three days fromthese places.  Water samples and fishes were collected from theseareas and analysed.  Dissolved oxygen content in the sampleswas within the normal range and algal blooms were not observed.Fishes included soles, croakers, sandwhiting, sweetlips, flatheads,skates and rays. (Mangalore Research Centre)Loss of life at MangaloreAt Mangalore sea was turbulent even after August, causinginconvenience to the local fishermen.  Purseseines could not beoperated on several days and the multi-night units too did notoperate on regular basis. Sand bar formation at the channelentrance near Mangalore Fisheries Harbour made it verydangerous for the fishing boats to cross in and out of the channel.An accident at the channel caused 10 fishermen of the purseseineto fall out of their boat and only 6 of them could be rescued.(Mangalore Research Centre)Phytoplankton bloom off Azhikal coast (Quilon District,Kerala)A thick greenish yellow coloured bloom of diatoms Thalassioserasp. and Coscinodiscus sp. was observed in the coastal watersbetween Azhikal and Arattupuzha in the Quilon district, whichwas badly hit by recent tsunami. The SST was 24.5oC at 14:45 h,indicating the presence of upwelled water.  No mortality of finfishor shellfish noticed.  Very high  levels (17.37 µg at/l) of silicatematched with the blooming of these two species of diatoms.Nitrate and phosphate levels were also quite higher than those inthe adjacent non bloom areas, such as Thrikunnupuzha andNeendakara.  (Fishery Environment and Management Division)Extensive damages to fishing craftsOn the early hours of 7th September 2005, tidal waves inflicteddamages to the anchored crafts in the fishing villages ofSubbammapeta, Ramsettipeta and Sooradipeta of Uppada hamletin East Godavari district of AP.  The cost of repairing damagedcrafts was estimated at Rs. 2000-5000 per craft depending on themagnitude of the damage. (Kakinada Research Centre)Live Groupers transported for brood stock developmentEpinephelus malabaricus, (Malabar grouper) weighing 2 kg to6.5 kg were transported  live to Vizhinjam Research Centre ofCMFRI in oxygenated containers without any mortality, fromKarapad farm of Tuticorin Research Centre and MandapamRegional Centre for brood stock development and breedingexperiments.   (Vizhinjam Research Centre)Juveniles of Amphiprionpercula in sea anemoneCarcharhinus leucasACADEMIC NEWSPh. D.  AwardScholar Guide Title of ThesisMs. Jyothi V. Dr. P. Muthiah Induction and evaluation ofMallia Principal Scientist triploidy in CrassostreaTRC of CMFRI madrasensis(Preston)

World record sized giant bull shark caught at Chennai coast

http://eprints.cmfri.org.in/6636/1/World_record_sized_giant_bull_shark.pdf

World record sized giant bull shark caught at Chennai coast

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