Search results
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Review of the use of survey data and length-at-age models in the assessment of Dissostichus eleginoides in the vicinity of Heard Island and McDonald Islands (Division 58.5.2)
and the implications of this review to estimating the abundance of juvenile fish using CMIX. In addition, the paper ... of abundance of juvenile fish and the length-at-age model were also examined. Yield estimates were found ... and the cohort abundances from CMIX, and to a lesser extent estimated fishing selectivities. A scenario ... of this review to estimating the abundance of juvenile fish using CMIX. In addition, the paper examines how ...
Meeting Document : WG-FSA-06/44 Rev. 1 : Author(s): D.C. Welsford, A.J. Constable and G.B. Nowara (Australia)
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Revised assessment models for Patagonian toothfish in research block 58.4.3a_1 of Division 58.4.3a, Elan Bank for the years 2005–2014
fish tagged in 2012, and a catch at age model including the data with a single age length key applied ... -length relationship for Ob-Lena Banks (ELAN_lenOB). The likelihood profiles for tagged fish released ... was calculated at 30 tonnes. The fishing bias to the shallow areas should be avoided because the CCAMLR risk ... : two catch at length models including (ELAN_len model) or excluding (ELAN_tag model) the data from fish ...
Meeting Document : WG-FSA-15/22 : Author(s): K. Taki (Japan), S. Mormede (New Zealand) and T. Ichii (Japan)
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Estimation of natural mortality for the Patagonian toothfish at Heard and McDonald Islands using catch-at-age and aged mark-recapture data from the main trawl ground
and recaptures of tagged fish were available. Catch and releases by age class for this fishery were obtained ... . A large proportion of the recaptures of fish released in this fishery were aged and these were used ... gave unrealistic estimates of M and the annual fishing mortality rates both when the model ... of tagged fish were available. Catch and releases by age class for this fishery were obtained using ...
Meeting Document : WG-FSA-10/41 : Author(s): S. Candy, D. Welsford, T. Lamb, J. Verdouw and J. Hutchins (Australia)
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An investigation of integrated stock assessment methods for the Patagonian toothfish (Dissostichus eleginoides) in Division 58.5.2 using CASAL
of the abundances of juvenile fish but adding fishery catch-at-length data, including a standardised catch-per-unit ... , there is considerable tension in the estimation model between natural mortality and fishing selectivities ... of the abundances of juvenile fish but adding fishery catch-at-length data, including a standardised catch-per-unit ... , there is considerable tension in the estimation model between natural mortality and fishing selectivities ...
Meeting Document : WG-FSA-SAM-06/14 : Author(s): A. Constable, S. Candy and I. Ball (Australia)
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New Zealand’s exploratory fishery for toothfish within the SPRFMO Convention Area: update and future directions
Abstract: The 2-year programme of exploratory fishing provided for by SPRFMO CMM 4.14 has been ... caught, that these were mostly male (~85%), and that most fish were in spawning condition or spent ... The 2-year programme of exploratory fishing provided for by SPRFMO CMM 4.14 has been successfully ... , that these were mostly male (~85%), and that most fish were in spawning condition or spent. These surveys provide ...
Meeting Document : SC-CAMLR-XXXVI/BG/18 : Author(s): M. Cryer, A. Dunn and J. Fenaughty
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Managing the Ross Sea toothfish fisheries – A response to the consultation responses (COMM CIRC 18/39)
fishing season, calculations will be made on historical catch data for the vessels that have notified ... their intent to fish. After this time the Secretariat will transition to a projection based on data reported ... . For the first 3 days of the fishery, when little information is available from the current fishing season ... , calculations will be made on historical catch data for the vessels that have notified their intent to fish ...
Meeting Document : WG-FSA-18/07 : Author(s): CCAMLR Secretariat
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Analysis of variables influencing finfish by-catch in the krill fishery in Area 48
-2011/12. The majority of fish caught were either small juveniles or larvae, dominated by Myctophidae ... , krill catch, sea surface temperature, bottom depth and fishing depth and season were all significantly ... . The majority of fish caught were either small juveniles or larvae, dominated by Myctophidae (lanternfish ... temperature, bottom depth and fishing depth and season were all significantly associated with the presence ...
Meeting Document : WG-EMM-12/28 : Author(s): S.M. Martin, T. Peatman, J. Moir Clark (United Kingdom), O.R. Godø (Norway) and R.C. Wakeford (United Kingdom)
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Krill population dynamics in the Scotia Sea: variability in growth and mortality within a single population
of demographic parameters. Where substantial differences in these parameters exist between fishing areas ... of demographic parameters. Where substantial differences in these parameters exist between fishing areas ...
Meeting Document : WG-EMM-02/16 : Author(s): K. Reid, E.J. Murphy (United Kingdom), V. Loeb and R.P. Hewitt (USA)
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A spatial multi-species operating model (SMOM) of krill–predator interactions in small-scale management units in the Scotia Sea
the potential impact of fishing on land-based predators. The model is intended to complement the outputs from ... impact of fishing on land-based predators. The model is intended to complement the outputs from the KPFM ...
Meeting Document : WG-EMM-06/12 : Author(s): É. Plagányi and D. Butterworth (South Africa)
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Entanglement of Antarctic fur seals (Arctocephalus gazella) in man made debris at Bird Island, South Georgia, during the 2006 winter and 2006/07 breeding season
material overall (28%), closely followed by fishing nets (26%). Juveniles (including sub-adults) were ... followed by fishing nets (26%). Juveniles (including sub-adults) were involved in 56% of all entanglements ...
Meeting Document : SC-CAMLR-XXVI/BG/17 : Author(s): Delegation of the United Kingdom