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1. Further progress on modelling the krill–predator dynamics of the Antarctic ecosystem

   to act as a surrogate for these in addition to the seals themselves. This results in an improved fit ... Antarctic ecosystem subsequent to the Ulsan meeting of the IWC Scientific Committee. Points raised about the ... fitting the model to abundance and trend data is reported. The model is extended to include an “other ... of the model to available abundance estimates for crabeater seals. A list of topics for possible ...

   Meeting Document : WG-EMM-06/19 : Autor(es): M. Mori (Japan) and D.S. Butterworth (South Africa)

2. Peculiarities of Euphausia superba size composition in Statistical Subarea 48.2 (South Orkney Islands)

   (Table 1), which cover 20-years period (from 1965 to 1985). Data on size composition of E.superba for ... each survey are showed on reparate maps (Fig. l-14). Consideration of age of animals is outside of ... ) present here, and for size distribution curves is characteristic more compressed position of separate ... adolescent and adult E-superba. This phenomenon is mope complicated for the Scotia Sea due to two reasons ...

   Meeting Document : WG-KRILL-91/11 : Autor(es): V.I. Latogursky and R.R. Makarov (USSR)

3. On necessity of longline fishery and research of Antarctic toothfish in all SSRUs of Subareas and Divisions 88.1, 88.2, 58.4.1, 58.4.2

   SSRUs, open and closed for fishery, resulted in a lack of overall picture of population structure state ... , quantitative toothfish distribution over the whole aquatory in Divisions 88.1 and 58.4 and did not give an idea ... of toothfish migrations by tagging results. The mentioned system shortcomings require its revision ...

   Meeting Document : WG-FSA-10/36 : Autor(es): K.V. Shust, A.F. Petrov, V.A. Tatarnikov and I.G. Istomin (Russia)

4. Preliminary assessment of the South Georgia toothfish stock, 2007

   estimates of catches at age from 1998 to 2006 (based on random sampling of the catch for age determination ... ). Fits of all data (CPUE; catches at length for the early fishery; catches at age for the later fishery ... estimates year class strength which corresponds, in some years, with estimates made from the South Georgia ... Abstract:  1. The catch-at-length based CASAL model for toothfish at South Georgia is updated with ...

   Meeting Document : WG-FSA-07/29 : Autor(es): D.J. Agnew, R. Hillary and J. Pearce (United Kingdom)

5. The Patagonian toothfish: biology, ecology and fishery

   toothfish are a long-lived species (> 40 years), which initially grow rapidly on the shallow shelf areas ... , before undertaking an ontogenetic migration into deeper water. Although they are active predators and ... habitat at around 100 mm (1 yr old), and inhabit relatively shallow water (< 200m) until 6-7 years of ... age, when they begin a gradual migration into deeper water. As juveniles in shallow water, toothfish ...

   Meeting Document : WG-FSA-10/P05 : Autor(es): M.A. Collins, P. Brickle, J. Brown and M. Belchier

6. Preliminary assessment of Patagonian toothfish in Subarea 48.3

   and to catch at age observations and achieves this by assuming a different selection pattern for the ... catch at age data. MCMC diagnostics and trace plot indicate poorer results than for previous assessments ... intermediate (1998-2003) period and a slightly changed selection pattern for the most recent period Model ... recruitment.YCS estimates which differ markedly in 1990 but follow similar trends in all other years. Recruitment ...

   Meeting Document : WG-FSA-13/30 : Autor(es): R. Scott (United Kingdom)

7. The food and feeding ecology of the white-chinned petrel Procellaria aequinoctialis at South Georgia

   important constituent of the diet, comprising over 90% of prey items and forming 47% of the diet by weight ... (Myctophidae) of 8 species (chiefly in the genera Electrona and Gymnoscopelus), forming 80% by numbers and 52 ... of fledging, when it decreased. Meal delivery rate was high (one per day) for young chicks (1-10 days ...

   Meeting Document : WG-CEMP-94/14 : Autor(es): J.P. Croxall, A.J. Hall, H.J. Hill, A.W. North and P.G. Rodhouse (United Kingdom)

8. Managing the Ross Sea toothfish fisheries – A response to the consultation responses (COMM CIRC 18/39)

   monitoring, and the calculation of closure dates, for the 2018/19 season in the Ross Sea: The Secretariat ... Abstract:  In 2017 the fishery in the Northern Area of the Ross Sea Area 88.1 was opened for one ... day, closed for 2 days, and then re-opened, a situation that was criticised by some Members. The ... Secretariat catch and effort monitoring procedure) and proposes a revised approach for catch and effort ...

   Meeting Document : WG-FSA-18/07 : Autor(es): CCAMLR Secretariat

9. A drone-based Antarctic fur seal (Arctocephalus gazella) census of the St. Telmo Islands, South Shetland Archipelago

   to obtain in remote polar environments. The standard approach for income breeding pinnipeds, such as ... last decade unmanned aerial systems (UAS), or drones, have become indispensable tools for wildlife ... Telmo Islands during the 2018-19 field season. The APH-28 provided a minimally-invasive, robust, and ... 333, which represents a 79% reduction since the most recent survey in 2008, and a 90% reduction from ...

   Meeting Document : WG-EMM-2019/65 : Autor(es): D.J. Krause and M.E. Goebel

10. Growth per molt of male snow crab Chionoecetes opilio from Conception and Bonavista Bays, Newfoundland

    that 20 of these had molted once while the remainder molted twice. Two lines of evidence support this ... post- and pre-molt sizes using the combined data set for single and double molters. The method was also ... generalized to account for a quadratic relationship between post- and pre-molt size. For crabs in the size ... range 80-110 mm carapace width, the predicted size after molting in mm is equal to 7.398 + 1.038 x pre ...

    Meeting Document : WS-CRAB-93/12 : Autor(es): D.M. Taylor and J.M. Hoenig (USA)

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