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1. Length-based assessments revisited – why stock status and fishing mortality of long-lived species such as toothfish cannot be inferred from length-frequency data alone

   abundance. Punt et al. (2001) investigated mean length and the upper 5th percentiles of length (and weight ... , with the last age class being a ‘plus class’ in which older fish accumulated. The removal of catch ... (variable rec) Individual trial specifications Reference year 2000 First year of projection 2001 ... indicators being at, or close to, zero (not shown), while indicator values for mature selectiv- ity ... eleginoides) are illustrated. While length-frequency data can be useful in assessments when integrated with ... -lived species such as toothfish cannot be inferred from length-frequency data alone Abstract ... highlight that interpretation of raw length-frequency data and single length-based indicators for stock ... status and fishing mortality is problematic and should be avoided. File:  04ziegler-et-al.pdf ...

   Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 57–73 : Author(s): Ziegler, P.E., D.C. Welsford and A.J. Constable

2. Can toothfish catches be used to predict the presence of vulnerable benthic invertebrate taxa?

   OF VuLNeRAbLe beNTHIC INVeRTebRATe TAXA? S.J. Parker* National Institute of Water and Atmospheric Research ... they often overlap in distribution (Brodeur, 2001; Heifetz, 2002; Krieger and Wing, 2002; Etnoyer ... , R.D. 2001. Habitat-specific distribution of Pacific ocean perch (Sebastes alutus) in Pribilof Canyon ... , impacts from fishing would be higher than if VMEs are distributed randomly with respect to fishing ... Paper Title:  Can toothfish catches be used to predict the presence of vulnerable benthic ... fishing footprint. If high target species catch rates are associated with habitats where VMEs are found ... data available showed no evidence that the presence of any of six VME indicator taxa was informative in ...

   Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 87–96 : Author(s): Parker, S.J. and M.H. Smith

3. e-sc-xxxv-a04.pdf

   ... meeting’s agenda was adopted (Appendix B). 1.4 The Subgroup recommended that the Secretariat liaise with ... contact vessels as they enter a subarea. 1.5 The Subgroup noted that it may be useful to explore ... fishery, for example by allowing extra catch to be available to those vessels that voluntarily undertake ... krill fishing grounds. The Subgroup agreed that is it most desirable for data to be collected from the application/pdf attached to:SG-ASAM-16

   Meeting Report : SG-ASAM-16

4. e-cc-xiii.pdf

   ... The Commission noted the advice of SCAF concerning the increasing work being asked of the Secretariat ... 4, Appendix D). It noted that the new submission date for STATLANT data (31 August) had made it easier ... endorsed a γ value of 0.116 as being the best available at this time. 3.10 The Commission endorsed ... being initiated by Italy, South Africa and Norway (SC-CAMLR-XIII, paragraph 6.3), and that five Members ... . The Commission directed that the Secretariat correspond with Members, as recommended by SCAF , and ... Commission agreed that any proposals put to it or the Scientific Committee for work to be performed should ... 1995 budget. 2.14 Several Members expressed disappointment that no agreement could be reached at this ... , Appendix D). It noted that the new submission date for STATLANT data (31 August) had made it easier for application/pdf attached to:CCAMLR-XIII

   Meeting Report : CCAMLR-XIII

5. Preliminary results of stock estimation for D. mawsoni using CASAL in the research block 48.6_2

   . The model assumes that single sex and age structured model without considering IUU. Tag release data ... B0, B2016, and current vulnerable biomass are estimated to be 17718.8, 17007.3, and 6986.2 tonnes ... . The MCMC estimates of B0 (18143.15t) and current biomass (17431.60 t) are much higher than the latest ... biomass estimates by CPUE-by-seabed method (3029 t) and Chapman method (4223 t). CCAMLR decision rule risk ...

   Meeting Document : WG-FSA-18/72 : Author(s): T. Okuda

6. Structure and distribution of the slope fish community in the vicinity of the sub-Antarctic Prince Edward Archipelago

   investigated during the pilot survey conducted in April 2001 onboard fishing vessel MV Ibis. A total of 56 fish ... investigated during the pilot survey conducted in April 2001 onboard fishing vessel MV Ibis. A total of 56 fish ...

   Meeting Document : SC-CAMLR-XXIII/BG/20 : Author(s): Delegation of South Africa

7. Manual: estimating the age of Patagonian toothfish (Dissostichus eleginoides) using transverse cross-sections of otoliths

   noted in the growth parameters being used for assessments of toothfish. To assess whether ... nations participated in a Workshop in 2001 at Old Dominion Unversity with the primary aim of seeking ... in the growth parameters being used for assessments of toothfish. To assess whether these differences were real ... participated in a Workshop in 2001 at Old Dominion Unversity with the primary aim of seeking conformity ...

   Meeting Document : WG-FSA-10/15 : Author(s): K. Underkoffler, N. Ramanna and J. Ashford (USA)

8. An exploration of the biological data used in the CCAMLR Subarea 48.3 Patagonian toothfish stock assessments

   estimates and consequent management advice, and that these changes may be related to long-term environmental ... change. The Working Group recommended that key assessment parameters be reviewed and that changes in the ... fishery dynamics that would impact their estimation be explored. The biological productivity parameters in ... Abstract:  WG-FSA 2018 noted that changes in productivity parameters may impact assessment ...

   Meeting Document : WG-SAM-2019/32 : Author(s): E. MacLeod, K. Bradley, T. Earl, M. Söffker and C. Darby

9. WG-EMM-09

   DATA FROM THE RUSSIAN KRILL TRAWLER 'MAXIM STAROSTIN' IN THE SOUTH ORKNEY ISLANDS REGION ...

   Meeting

10. An assessment of the impact of krill fishery on penguins in the South Shetlands

    equivalent amount (3,000-10,000 t/10-day) for the following three months, with its increased fishing ... penguins is estimated to be large in the shelf and slope near King George Island (11,680 t/10-day), whereas ... small near Livingston (2,570 t/10-day) and Elephant (220 t/10-day) Islands. This little overlap between ... into and out of the area, but high krill biomass (100-1000 x103t) usually existed there. Compared with ...

    Meeting Document : WG-KRILL-93/07 : Author(s): T. Ichii, M. Naganobu and T. Ogishima (Japan)

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