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1. Accumulation of stranded plastic objects and other artefacts at Inaccessible Island, central South Atlantic Ocean

   Abstract:  During 1987 a survey of macro-artefacts (>10 mm diameter) was conducted along a 900 ... m boulder beach at the western point of Inaccessible Island, central South Atlantic Ocean. This ... repeated the survey made at the same site during 1984, when the highest density of artefacts at the Tristan ... Inaccessible Island. The minimum rate of artefact accumulation was 88 objects km-1 year-1. Total numbers of ...

   Meeting Document : CCAMLR-VII/BG/04 : Author(s): P.G. Ryan and B.P. Watkins (South Africa)

2. Using outputs from spatial population models of Antarctic toothfish in the Ross Sea region to investigate potential biases in the single population model

   assumptions of the stock assessment for Antarctic toothfish in the Ross Sea region using spatially explicit ... operating models. The method allows investigation of potential biases and uncertainty in the assumptions of ... Population Model (SPM), to develop spatially explicit movement models of the Antarctic toothfish in the Ross ... were then used in a single area stock assessment model derived from the stock assessment model of ...

   Meeting Document : WG-FSA-12/45 : Author(s): S. Mormede and A. Dunn (New Zealand)

3. A biomass estimate of Antarctic krill (Euphausia superba) at the Balleny Islands

   Abstract:  The biomass of Antarctic krill (Euphausia superba) at the Balleny Islands, Antarctica ... data processing followed the recommendations of CCAMLR SG-ASAM.  Two parameterisations of the krill ... acoustic target strength model were used.  The first parameterisation assumed a vertical orientation of ... (coefficient of variation, CV = 0.37), whereas biomass using θ=N(-20,28) was 13.75 kilotonnes (CV = 0.14).  The ...

   Meeting Document : WG-EMM-15/17 Rev. 1 : Author(s): M.J. Cox (Australia), Y. Ladroit, P. Escobar-Flores and R.L. O’Driscoll (New Zealand)

4. The Continuous Plankton Recorder in the Southern Ocean: a comparative analysis of zooplankton communities sampled by the CPR and vertical net hauls along 140°E

   Abstract:  A repeat transect was run south of Tasmania, along ~140°E, during November and December ... each of 19 stations: 0–20, 20–50, 50–100 and 100–150 m. A Continuous Plankton Recorder (CPR) was ... . Zooplankton in the top 150 m of the water column demonstrated strong, small-scale, vertical distribution ... , indicating that all communities had a similar distribution of abundance amongst species. There was little ...

   Meeting Document : WS-BSO-07/P5 : Author(s): Hunt, B.P.V and G. Hosie

5. Prediction of krill target strength by liquid prolate spheroid model

   (TS) of krill. Scattering patterns are shown to demonstrate orientation dependence of krill TS. Length ... -to- wavelength ratio (L/λ) dependencies of reduced (normalized by body length squared) target ... results. The variability of the TS of krill is large where L/λ is larger than unity. Therefore, a ... . Furusawa and Y. Miyanohana (Japan) Title:  Prediction of krill target strength by liquid prolate spheroid ...

   Meeting Document : WG-KRILL-93/21 : Author(s): M. Furusawa and Y. Miyanohana (Japan)

6. Surveys of breeding penguins and other seabirds in the South Shetland Islands, Antarctica, January – February 1987

   Abstract:  Surveys of the South Shetland Islands, Antarctica in 1987 provided data on the size and ... location of penguin and Antarctic Blue-eyed Shag colonies and the breeding status of other seabirds. Our ... estimate of 1,618,370 to 2,084.570 breeding Chinstrap Penguins, the most abundant penguin in the study area ... widespread and abundant than previously reported. We hypothesize that this trend is largely an artifact of ...

   Meeting Document : SC-CAMLR-VI/BG/19 : Author(s): W.D. Shuford and L.D. Spear (USA)

7. Impacts of ocean acidification on Antarctic krill biology: preliminary results and future research directions

   Abstract:  This study reports some preliminary results of the impacts of Ocean Acidification due ... to elevated seawater pCO 2 on the activity, mortality, moulting of post-larval krill.  Increased CO2 ... conditions in this study. Some practical approaches to observing and improving our understandings of the ... impacts of OA on Antarctic krill population are suggested. Author(s):  S. Kawaguchi, T. Berli, R. King, S ...

   Meeting Document : WG-EMM-12/32 : Author(s): S. Kawaguchi, T. Berli, R. King, S. Nicol, P. Virtue and A. Ishimatsu (Japan)

8. OCCURRENCE OF DWARF MINKE WHALES (BALAENOPTERA ACUTOROSTRATA SUBSP) AROUND THE ANTARCTIC PENINSULA

   Abstract:  The occurrence of dwarf minke whales (Balaenoptera acutorostrata subsp.) around the ... Antarctic Peninsula was examined based on 406 sightings of minke whales recorded during the Chilean ... Antarctic Scientific Expeditions and other opportunistic cetacean surveys. Identification of the species was ... made only for the whales sighted in the proximity of the vessels when the specific diagnostic ...

   Meeting Document : WG-EMM-11/P2 : Author(s): J. Acevedo, C. Olavarría, J. Plana, A. Aguayo-Lobo, A. Larrea and L.A. Pastene

9. Results of the mark–recapture experiment in Subarea 48.3, 2005

   – distributed over the whole of the fishable grounds in 48.3 this year. The Petersen mark-recapture estimator ... from 2004 and 2005 were very similar to each other, whichever selectivity was used: about 62,000 t of ... selectivity functions are more peaked than the Kirkwood shallow selectivity used in 2004. Estimates of ... of vulnerable biomass, resulted in consistent estimates of sustainable yield of about 4,800 t ...

   Meeting Document : WG-FSA-05/17 : Author(s): D.J. Agnew and A. Payne (United Kingdom)

10. The recent decline in recruitment of Gobionotothen gibberifrons in the South Shetland Islands (CCAMLR Subarea 48.1)

    Abstract:  Commercial exploitation of fish stocks around Elephant Island and the lower South ... Shetland Islands ceased after the 1989/90 season. One of the larger and most abundant species in the area ... perturbations on a fish stock by recruitment failure as one of them. Data from the 1980’s and 1990’s (1983, 1985 ... recruitment of G. gibberifrons was normal. Recruitment began to decline substantially at the turn to the 2000 ...

    Meeting Document : WG-FSA-12/20 : Author(s): K.-H. Kock (Germany) and C.D. Jones (USA)

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