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1. 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)

2. 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

3. 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)

4. 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)

5. Effect of a shore-based sampling program on Notothenia coriiceps populations

   summers of 1992/93 to 1994/95 at one specific zone (site 1) with those taken in the same last summer at ... started in site 1. Present results show that the size variations of N. coriiceps observed at Potter Cove ... Abstract:  The effect of an intensive sampling programme on an inshore population of Notothenia ... coriiceps was studied at Potter Cove, South Shetland Islands, by comparing catch data taken in successive ...

   Meeting Document : WG-FSA-99/24 : Автор(ы): R. Casaux and E. Barrera-Oro (Argentina)

6. Quantitative stock survey and some biological and morphometric characteristics of the deep-sea red crab Geryon quinquedens off south west Africa

   bimodal frequency distribution of female crabs was evident with modal sizes at 7.7 cm and 8.7 cm carapace ... densities occurred at depths of 472-849 m, whereas unusually high concentrations were encountered during two ... trawls at water depths of 549 and 590 m. The red crab survives at extremely low levels of dissolved ... Abstract:  In order to assess the abundance of the red crab Geryon quinquedens, two otter-trawl ...

   Meeting Document : WS-CRAB-93/22 : Автор(ы): C.J. De B. Beyers and C.G. Wilke (South Africa)

7. Revised assessment models for Patagonian toothfish in research block 58.4.3a_1 of Division 58.4.3a, Elan Bank for the years 2005–2014

   CCAMLR risk 2 values at 13 tonnes and above for the shallow fishery exceed 50% toward the end of 35 year ... Abstract:  We revised sensitivity runs of age-structured and two fisheries (≥1 300 m and < 1 ... 300 m) CASAL models for stock status assessments of Dissostichus eleginoides in the research block ... 58.4.3a_1 following the recommendations of the last WG-SAM meeting. Total of four runs were carried out ...

   Meeting Document : WG-FSA-15/22 : Автор(ы): K. Taki (Japan), S. Mormede (New Zealand) and T. Ichii (Japan)

8. An assessment of longlining operations for Dissostichus eleginoides on board the Chilean-registered longliner BF Cisne Verde during March–May 1997 around South Georgia (Subarea 48.3)

   sex were taken. Mean total length of females caught was higher than males, and length at first ... only 24% in the female population. The mean daily loss rate of toothfish observed at the hauling point ... of fish caught relative to the length at first maturity of females indicate that reproductive over ... South Georgia (Sub-area 48.3) were assessed over 48 days during April and May. All lines were set at ...

   Meeting Document : WG-FSA-97/41 : Автор(ы): Ashford, J.R., Everson, I.

9. Investigating emigration in stock assessment models of Antarctic toothfish (Dissostichus mawsoni) in Subarea 88.2 SSRUs 88.2C–H

   of a cohort of tagged fish with few being recaptured after more than 3 years at liberty, a steepening ... model captured either the sharp decay in the number of tagged fish recaptured with increasing time at ... Abstract:  In 2013, the Scientific Committee of CCAMLR could not achieve consensus on a stock ... the recaptures of tagged fish seen in the SSRU 88.2H fishery. The patterns showed a sharp decay rate ...

   Meeting Document : WG-FSA-14/56 : Автор(ы): S. Mormede, A. Dunn and S.M. Hanchet (New Zealand)

10. Escapement of elephant seal prey in the Heard Island fishery for Dissostichus eleginoides

    of 3800 tonnes. Of 21 otoliths found in Elephant Seal stomachs at Heard Island that have previously ... these otoliths. The importance of Dissostichus eleginoides as prey of the Elephant seals at Heard Island ... Abstract:  The Patagonian toothfish, Dissostichus eleginoides, has been reported as prey of ... Elephant seals in the Heard Island region. A question was raised at SC-CAMLR-XV concerning what affect the ...

    Meeting Document : WG-EMM-97/42 : Автор(ы): Slip, D., Constable, A.J., de la Mare, W.K., Williams, R.

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