https://vital.seals.ac.za/vital/access/manager/Index ${session.getAttribute("locale")} 5 Spatial and seasonal distribution patterns of the ragged-tooth shark Carcharias taurus along the coast of South Africa https://vital.seals.ac.za/vital/access/manager/Repository/vital:35943 Wed 06 Nov 2019 13:05:21 SAST ]]> Spatial and seasonal distribution patterns of juvenile and adult raggedtooth sharks (Carcharias taurus) tagged off the east coast of South Africa https://vital.seals.ac.za/vital/access/manager/Repository/vital:35942 Wed 06 Nov 2019 12:53:06 SAST ]]> Shark fishing effort and catch of the ragged-tooth shark Carcharias taurus in the South African competitive shore-angling fishery https://vital.seals.ac.za/vital/access/manager/Repository/vital:35937 Wed 06 Nov 2019 11:28:35 SAST ]]> Population dynamics of the raggedtooth shark (carcharias taurus) along the east coast of South Africa https://vital.seals.ac.za/vital/access/manager/Repository/vital:5310 1.8 m TL) displayed philopatric behaviour for specific parts of their ranges, including gestating and parturition areas. Significant differences were observed in the percentage of recaptures between the different tag types, tagging programs, individual taggers and capture methods used to tag sharks. The annual tag retention rate for juvenile sharks, 94.19% (95% C.I. = 80.68% - 100.00%) was significantly higher than for adult sharks, estimated at 29.00% (95% C.I. = 6.76% - 64.39%). Tag reporting rates, from fishermen varied both spatially and temporally from 0.28 (95% C.I. = 0.00 – 0.63) to 0.77 (95% C.I. = 0.56 – 0.97). Associated tag wound damage and biofouling growth indicated that B-type tags were a suitable tag type for use on C. taurus, whereas C-type tags were not. The CJS bias-adjusted estimate for juvenile survival was 0.456 (95% C.I. = 0.367 – 0.516) and for adult sharks, 0.865 (95% C.I. = 0.795 – 0.915). From 1984 to 2004 the mean bias-adjusted population size for juvenile sharks was estimated at 3506 (95% C.I. = 2433 – 4350) and for adult sharks, 5899 (95% C.I. = 7216 – 11904). Trends in abundance over the 20-year study period indicated a stable, healthy population.]]> Mon 20 Feb 2017 18:16:59 SAST ]]> Preliminary observations of tag shedding, tag reporting, tag wounds, and tag biofouling for raggedtooth sharks (Carcharias taurus) tagged off the east coast of South Africa https://vital.seals.ac.za/vital/access/manager/Repository/vital:35816 Fri 01 Nov 2019 14:32:43 SAST ]]>