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1. Population demography of Antarctic fur seals: the costs of reproduction and implications for life-histories

   Abstract:  1. This study examined the costs of reproduction in terms of future survival and ... . 2. Population age structures were used, in conjuction with the measured age-specific survival rates ... , to estimate the rate of increase of the population as 10•7% per annum. 3. The average annual survival ... rate was 0•83 (SD = 0•10) with a range from 0•65 to 0•93. Survival rate showed no trend through time ...

   Meeting Document : WG-EMM-95/26 : Autor(es): Reid, K., Croxall, J.P., Lunn, N.J., Boyd, I.L.

2. A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997/98 to 2006/07

   Sea fishery have been very consistent over the past 3–4 seasons. There is no evidence of any ... truncation of the overall length frequency distribution, and no evidence for a reduction in fish length in ... . So at this stage there is no evidence for strong variation in year class strength in the fishery ... Abstract:  The exploratory fishery for Antarctic toothfish (D. mawsoni) has been operating for ten ...

   Meeting Document : WG-FSA-07/28 : Autor(es): S.M. Hanchet, M.L. Stevenson and A. Dunn (New Zealand)

3. Results on by-catch of fish during Ukrainian, Polish and Japanese krill fishery in the South Orkney Islands, South Georgia and Shetland Islands areas

   South Georgia (March to May, 1993), and by the Japanese fishing vessels No.3 and No.5 Chiyo Maru in the ... the South Orkney Islands area, eight hauls were subjected to analysis and there was no by-catch of ... krill Euphausia superba Dana conducted by the Ukrainian trawler Grigory Kovtun in the vicinity of South ... Georgia (May to July, 1992), the Polish trawler Lepus on the fishing grounds of South Orkney Islands and ...

   Meeting Document : WG-FSA-96/19 : Autor(es): Cielniaszek, Z., Pakhomov, E.A., Iwami, T.

4. Do krill and salp compete? Contrary evidence from the krill fisheries

   blooms and the presence of green krill were analysed. No relationship between salp density and the ... . However, no clear relationship was observed in the Elephant Island area. Possible reasons for these ... feeding on phytoplankton were analysed using logbook data from Japanese krill trawlers operating near the ... Antarctic Peninsula. Interannual and seasonal variability of the timing, duration and intensity of salp ...

   Meeting Document : WS-AREA 48-98/4 Rev. 1 : Autor(es): S. Kawaguchi (Japan), W.K. de la Mare (Australia), T. Ichii and M. Naganobu (Japan)

5. Spatially explicit population dynamics models for Antarctic toothfish in the Ross Sea region

   Paper Title:  Spatially explicit population dynamics models for Antarctic toothfish in the Ross ... Sea region Abstract / Description:  Population modelling software was developed that captures the ... dynamics of spatial heterogeneity of the population along with age structure, movement and reproductive ... models were developed for the Antarctic toothfish (Dissostichus mawsoni) population in the Ross Sea ... -restricted model). Note that no observations of toothfish outside the area historically fished exist ... , therefore the semi- restricted model assumes toothfish may exist in locations of suitable habitat where no ... into account the number of parameters in each model. Observations No research survey data on ... the models uti- lise fishery-dependent data only and have no infor- mation about the distribution of ...

   Science Journal Paper : CCAMLR Science, Volume 21 (CCAMLR Science, Volume 21) : 19–37 : Autor(es): Mormede, S., A. Dunn, S. Hanchet and S. Parker

6. Commercial fishing in the Ross Sea

   toothfish through the Ross Sea region, and little or no impacts on dependent species and the ecosystem ... Abstract:  COLTO members have been fishing for toothfish in the Ross Sea for the past 15 years ... . The New Zealand Seafood Industry Council, representing NZ toothfish operators in COLTO, have prepared ... the attached information sheet to contribute to conversations surrounding sustainable fishing ...

   Meeting Document : CCAMLR-XXXI/BG/35 : Autor(es): Submitted by COLTO

7. Preliminary appraisal of Antarctic fish selection by the 32/36 bottom trawl combined with various codends

   Paper Title:  Preliminary appraisal of Antarctic fish selection by the 32/36 bottom trawl combined ... . It was found that the selectivity properties of twine codends are unsatisfactory in the case of ... Antarctic icefish, bumphead notothenia, and Scotia Sea icefish. This was primarily caused by the heavy net ... some Antarctic fish, which make it difficult for them to escape from the codend. Selectivity properties ... fishery is no longer a disputable matter; the problem is to select the best measures from the biological ... -layer tape codend (mesh size 60 mm) collected in the Antarctic Peninsula area. Species No of tows No ... ANTARCTIC FISH SELECTION BY THE 32/36 BOTTOM TRAWL COMBINED WITH VARIOUS CODENDS J. Zaucha (Poland ... -layer tape codends with a mesh size of 60 and 100 mm were determined. It was found that the ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 1-48 : Autor(es): Zaucha, J.

8. Towards an initial operational management procedure for the krill fishery in Subareas 48.1, 48.2 and 48.3

   Paper Title:  Towards an initial operational management procedure for the krill fishery in ... (Euphausia superba) in Subareas 48.1, 48.2 and 48.3 requires a basis for the assessment of resource status ... , and an algorithm for specifying the levels of regulatory mechanisms (e.g., a catch control law) that ... depends on the results of the assessment. The development and selection of a procedure requires a basis ... reference level. Since no historic CPUE data (in respect of the Composite Index) are available, this ... ), there is no need to impose restrictions. (ii) Once that level (Cc) has been reached, the rate (cJ at ... reduced by twice the increment percentage). This paper intends no implication that the control law of ... (BIK)min for the case of no exploitation at all after the commencement of management (Cc=cr=O). Note ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 189–219 : Autor(es): Butterworth, D.S.

9. Preliminary analyses in support of the CEMP Review Workshop: power analyses

   Abstract:  A series of power (sensitivity) analyses of CEMP indices was made using the DOS-based ... change over the range –10% to +10% of a mean survey value. Each run of MONITOR involved the calculation ... of power for 3 survey scenarios and 3 alpha levels (0.05, 0.10 and 0.20). The 3 surveys scenarios ... change, and CEMP indices A3 (delta log transform), A8a (no transform), A8c (log odds transform), B1a ...

   Meeting Document : WG-EMM-03/26 : Autor(es): Secretariat

10. Gear loss reported by longline fishing vessels for the 2018 and 2019 fishing seasons

    no difference in the relative reporting of lost hooks by gear type, with rates of loss recorded at ... Abstract:  Gear loss as reported by longline vessels from the 2018 and 2019 fishing seasons ... . Vessels reported 1 632 km of line lost in the Convention Area, of which 27% were complete lines. There was ... 0.3% for each gear type for the past two seasons. There was a significant difference in the frequency ...

    Meeting Document : WG-FSA-2019/18 : Autor(es): CCAMLR Secretariat

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