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Mackerel icefish size and age at South Georgia and Shag Rocks
in the Southern Ocean have supported a fishery since the 1970s. This study has analysed the length ... between 1987 and 2002. Most surveys were between December and February (summer), with one in September ... modality in the length-frequency distributions. Lengths of age-classes derived by these two methods were ... 3 years at Shag Rocks, potentially indicating greater recruitment variability at Shag Rocks. Age ...
Meeting Document : WG-EMM-03/7 : Autor(es): A.W. North (United Kingdom)
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Preliminary analyses of data collected during experimental phases of the 1994/95 and 1995/96 Antarctic crab fishing seasons
regressions were probably a result of small catches, inter-haul variability in CPUE, and crab movement and ... their release sites. Density estimates from the mark-recapture data were in the order of 50 000 to 100 ... estimates. In general, the experimental harvest regime was successful. The regime provided important ... information about crab distribution and facilitated evaluation of local depletion estimators for use in stock ... . spinosissima, a number of interesting points can be raised from the results presented in Figure 3. First ... on 20 November, 1995. During this period, the vessel hauled 79 strings of gear which were set in ... extended (in a slightly revised format) for another three f ishing seasons (to the 1997/98 split-year ... insignificant regressions were probably a result of small catches, inter-haul variability in CPUE, and crab ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 141–159 : Autor(es): Watters, G
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CCAMLR Statistical Bulletin, Vol. 22 (2000–2009)
the Conservation of Antarctic Marine Living Resources (CCAMLR) and is available in hardcopy and ... database format. In this volume, the hardcopy version summarises data submitted over the most recent 10 ... series. This volume of the Statistical Bulletin summarises: Catch and effort data from fisheries in the ... Dissostichus spp.; Seabed areas used in fishery assessments conducted by CCAMLR’s Scientific Committee and ... . In this volume, the hardcopy version summarises data submitted over the most recent 10-year period ... December of one year to 30 November of the following year). The abbreviated notation for CCAMLR seasons ... refers to the calendar year in which the season ends (e.g. 2001/02 is abbreviated to 2002). The ... which the export or re-export was authorised. Weights reported as exported and re-exported in one year ...
Document : Site Section: Publications
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The ‘CAML/SCAR-MarBIN Biogeographic Atlas of the Southern Ocean’
comparative biogeographic analyses or discovering marine biodiversity hotspots. At the end of five years of ... 19 CAML-dedicated cruises in the whole Southern Ocean, and following the intense compilation efforts ... (benthos, plankton, nekton, birds and seals) south of 40°S. The hard copy version in large format will be ...
Meeting Document : WS-MPA-11/15 : Autor(es): C. De Broyer (Belgium) and P. Koubbi (France)
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A von Bertalanffy growth model for Division 58.5.2 fitted to length-at-age data and a comparison of predicted with observed growth from mark–recapture data
years old) to the VB model is also given in order to give more realistic predictions of mean length-at ... trawl in Heard Island fishery were fitted using a von Bertalanffy (VB) growth model taking into account ... being a sharp decline in selectivity from 100% at 1000 mm down to 1% by 1600 mm. The VB curve fitted to ... relative to those for the LF sample were also included in defining relative probabilities, the VP maximum ...
Meeting Document : WG-FSA-SAM-06/07 : Autor(es): S.G. Candy, A.J. Constable, T. Lamb and R. Williams (Australia)
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Volume 22: CCAMLR. 2010. Statistical Bulletin, Vol. 22 (2000–2009). CCAMLR, Hobart, Australia.
. In this volume, the hardcopy version summarises data submitted over the most recent 10-year period ... December of one year to 30 November of the following year). The abbreviated notation for CCAMLR seasons ... refers to the calendar year in which the season ends (e.g. 2001/02 is abbreviated to 2002). The ... which the export or re-export was authorised. Weights reported as exported and re-exported in one year ...
Document : Site Section: Publications
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Meeting information NCP
the Commission (194.47 KB) (Rules 30-35) relating to the participation of Observers. Missing Link ...
Page : Site Section: Meetings
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Distribution and abundance of skates (Bathyraja spp.) on the Kerguelen Plateau through the lens of the toothfish fisheries
decline in catch rate over the years of the HIMI fishery. Although all skates are returned to the water ... as incidental by-catch in Patagonian toothfish (Dissostichus eleginoides) longline and trawl ... fisheries, and the mackerel icefish (Champsocephalus gunnari) trawl fishery on the Kerguelen Plateau (KP) in ... mainly with depth. Off Heard Island and McDonald Islands (HIMI), in the southern part of the KP, B ...
Meeting Document : WG-FSA-16/P03 : Autor(es): G.B. Nowara, P. Burch, N. Gasco, D.C. Welsford, T.D. Lamb, C. Chazeau, G. Duhamel, P. Pruvost, S. Wotherspoon and S.G. Candy
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WG-SAM-10
Participants WG-SAM-10/03 List of Documents WG-SAM-10/04 Deployment of research hauls in the exploratory ... fisheries for Dissostichus spp. in Subareas 48.6 and 58.4 in 2009/10 Secretariat WG-SAM-10/05 Further ... improvements in data quality (short note) Secretariat WG-SAM-10/06 Recommendations on estimating krill escape ... on Patch v2: a simulation program in R for evaluating spatial management strategies to conserve ...
Meeting
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Comparison of estimators of effective sample size for catch-at-age and catch-at-length data using simulated data from the Dirichlet-multinomial Distribution
incorporating fishing selectivity. Either between-year “process” or “systematic” error in these probabilities ... shown that care should be taken to avoid year-to-year model lack-of-fit due to systematic deviations in ... Abstract: The incorporation of “effective sample size” (ESS) in integrated assessments is an ... a multinomial likelihood when there is extra-multinomial heterogeneity in age class or length class ...
Meeting Document : WG-SAM-07/7 : Autor(es): S.G. Candy (Australia)