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1. 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 ... be considered, and that the toothfish assessment is undertaken at periods of greater than one year ... Abstract:  1. The catch-at-length based CASAL model for toothfish at South Georgia is updated with ...

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

2. THE RISK TO FISHERY PERFORMANCE ASSOCIATED WITH SPATIALLY RESOLVED MANAGEMENT OF ANTARCTIC KRILL (EUPHAUSIA SUPERBA) HARVESTING

   exploitable densities of the target species at the scale of fishing operations. The probability of ... encountering exploitable densities of Antarctic krill, Euphausia superba, at the 1 nm scale during an acoustic ... spatial scale of management units could usefully predict effects at the scale of fishing operations ... will affect fishery performance. One metric of potential performance is the probability of encountering ...

   Meeting Document : WG-EMM-09/P10 : Автор(ы): S. Hill, P. Trathan and D. Agnew

3. Density estimation of Antarctic krill (Euphausia superba) around South Shetland Island and Elephant Island (Subarea 48.1) using two frequencies with 38 and 120 kHz

   software for swarm identification) and interval method based on distribution of (a) total krill AT and (b ... Abstract:  The density of Antarctic krill swarm inhabiting the Subarea 48.1, which includes the ... Elephant Island peripheries and the west and north of the South Shetland Island, was estimated using an ... ) each transects krill AT. The weighted krill density was estimated to be 4.27 g/m 2 (CV=43.42%) applying ...

   Meeting Document : SG-ASAM-2019/03 Rev. 1 : Автор(ы): S. Choi, S. Chung, I. Han, W. Oh, D. An and K. Lee

4. Effects of different harvesting strategies on the mackerel icefish Champsocephalus gunnari around South Georgia

   were: different levels of constant fishing mortality (F 0.1, F max, 2xF max); harvesting constantly at ... strategy at present. The establishment of a regular recruit survey would offer the possibility of adjusting ... Paper Title:  Effects of different harvesting strategies on the mackerel icefish Champsocephalus ... gunnari around South Georgia Abstract / Description:  The effects of a number of harvesting strategies on ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 77–100 : Автор(ы): Köster, F.W. and K.-H. Kock

5. SEASONAL ESTIMATION OF ABUNDANCE BY BOOTSTRAPPING INEXACT RESEARCH DATA (SEABIRD): A METHOD FOR ASSESSING ABUNDANCE AND UNCERTAINTY FROM HISTORICAL COUNT DATA USING ADELIE PENGUINS AS A CASE STUDY

   Abstract:  In addition to a review of published studies on Adelie penguin abundance at breeding ... uncertainty at breeding sites in Antarctica. To achieve this task, a menu-driven suite of routines titled ... concern was to ensure that different types of counts (eg. nests, chicks or adults), perhaps made at ... to assess their effect. Confidence intervals for final estimates at different scales of spatial ...

   Meeting Document : WG-EMM-PSW-08/11 : Автор(ы): J.P. McKinlay and C.J. Southwell (Australia)

6. ANTARCTIC FUR SEAL PUP PRODUCTION AND POPULATION TRENDS IN THE SOUTH SHETLAND ISLANDS WITH SPECIAL REFERENCE TO SOURCES OF ERROR IN PUP PRODUCTION ESTIMATES

   South Shetland Islands in 2007/08. Multiple counts of pups at each colony were conducted to establish ... 2001/02, pup production for the entire archipelago declined at an average annual rate change of-4.3 ... 30 days after the median date of pupping was estimated for the years 1997-2007 at 4.5% (±0.60). Adult ... Abstract:  This paper reports the results of a ground survey of fur seal colonies from in the ...

   Meeting Document : WG-EMM-PSW-08/14 : Автор(ы): M.E. Goebel (USA), D.E. Torres C. (Chile), A. Miller, J. Santora, D. Costa (USA) and P. Diaz (Chile)

7. Distribution, abundance and acoustic properties of Antarctic silverfish (Pleuragramma antarcticum) in the Ross Sea

   500 m. A weak layer at about 80 m depth was associated with juvenile silverfish of 50–80 mm standard ... frequency (i.e., was highest at 120kHz), which is characteristic of species without an air-filled ... relationship between TS and fish length at 38 kHz was sensitive to estimates of density and sound speed ... community of top predators in the shelf waters of the Ross Sea. In spite of their abundance and important ...

   Meeting Document : WG-FSA-10/P04 : Автор(ы): R.L. O’Driscoll, G.J. Macaulay, S. Gauthier, M. Pinkerton and S. Hanchet

8. Guidelines for the preparation of hydroacoustic survey reports on krill

   surveys. The unification of echometric survey data is aimed at increasing the effectiveness of research on ... Paper Title:  Guidelines for the preparation of hydroacoustic survey reports on krill Abstract ... / Description:  The proposed guidelines provide an opportunity to perform comparative analyses and checks of ... results obtained during echometric surveys of fish and krill, and to establish a data bank of these ... echometric survey data is aimed at increasing the effectiveness of research on the· quantitative assessment ... PREPARATION OF HYDROACOUSTIC SURVEY REPORTS ON KRILL I.L.Kalikhman (U.S.S.R.) Abstract The proposed ... guidelines provide an opportunity to perform comparative analyses and checks of results obtained during ... echometric surveys of fish and krill, and to establish a data bank of these surveys. The unification of ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 165-193 : Автор(ы): Kalikhman, I.L.

9. Spatial distribution of predator/prey interactions in the Scotia Sea: implications for measuring predator/fisheries overlap

   scales and arrives at contradictory conclusions. At-sea data from observations of krill predators during ... -linear decline. Krill fisheries operated at a scale of 150 km and almost all of this operation took place ... should be assessed at scales of 70- 100 km to accommodate the scales of operation of the predators ... Abstract:  The measurement of spatial overlap between predators and fisheries exploiting a common ...

   Meeting Document : WG-EMM-02/14 : Автор(ы): K. Reid, M. Sims, R.W. White and K.W. Gillon (United Kingdom)

10. Comparison of age- and length-based harvest control rules for the South Georgia icefish (Champsocephalus gunnari) fishery

    model dynamics and assuming perfect knowledge of the resource (initial numbers at age, maturity and ... Abstract:  An age-based operating model was constructed and used to derive an initial numbers at ... weight at age). The initial numbers at age was also converted to numbers at length, which was used to ... initialise the length based harvest control rule, again assuming perfect knowledge of the resource. Total ...

    Meeting Document : WG-SAM-10/12 : Автор(ы): C.T.T. Edwards, R.M. Hillary, R.E. Mitchell and D.J. Agnew (United Kingdom)

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