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1. A bioenergetics model assessment of the prey consumption of Adélie penguins in Subarea 48.1 and 48.2

   breeding. We parameterised our analysis using data from the population of Adélie penguins breeding at Signy ... the population of Adélie penguins at Signy Island consumes 4,600 t of krill and 696 t of fish during a ... Abstract:  We present a preliminary analysis to estimate the consumption of prey by Adélie ... Island, South Orkneys. We show that the highest levels of consumption occur during the crèche and pre ...

   Meeting Document : WG-EMM-17/32 : Author(s): C. M. Waluda, L. Emmerson, C. Southwell and P.N. Trathan

2. Cetaceans as indicators of historical and current changes in the East Antarctica ecosystem

   minke whale, resulting in a decreasing trend in the age at sexual maturity of this species between ... the stable trend of age at sexual maturity and recruitment after 1970’s. The stable trend in ... factors. This paper reviews the scientific information of whales that could be indicative of changes in ... the East Antarctica ecosystem in the context of two hypotheses, the ‘krill surplus’ hypothesis in the ...

   Meeting Document : WG-EMM-16/64 : Author(s): Y. Fujise and L.A. Pastene

3. Estimates of primary production by ice algae and phytoplankton in the coastal ice-covered area near Syowa Station, Antarctica

   -2 h-1 in June to 13.3 E m-2 h-1 in December. Relative light intensity estimated at the bottom of sea ... Abstract:  Annual primary production of ice algae and phytoplankton under fast ice near Syowa ... February 1983 to January 1984 was calculated with a mathematical model based on measured parameters of ... solar radiation, day length, attenuation coefficients of snow, ice and water, chlorophyll a standing ...

   Meeting Document : WG-KRILL-93/28 : Author(s): H. Satoh, K. Watanabe and T. Hoshiai (Japan)

4. Development of the krill stock in the elephant island region during the 1996/97 season

   . Krill and salps were present at almost all of the stations, other epipelagic zooplankton species were ... good recruitment of this year-class. At the same time the salp abundance was above average, but still ... /96, the present juvenile age group 1 +, does not repeat the very successful recruitment of the ... one order of magnitude lower than in the salp bloom years 1992/93 and 1993/94. Author(s):  Siegel, V ...

   Meeting Document : WG-EMM-97/16 : Author(s): Siegel, V.

5. Management of C. gunnari in Subarea 48.3

   Abstract:  The management of Champsocephalus gunnari at South Georgia is complicated by the ... likelihood of substantial periodic variation in natural mortality rates. These may be associated with ... increased consumption of icefish by Antarctic fur seals in years of poor krill availability. Thus natural ... mortality of icefish may, in some years, increase by a large factor (assumed here to be 4) declining to ...

   Meeting Document : WG-FSA-97/38 : Author(s): Kirkwood, G.P., Parkes, G.B., Everson, I., Agnew, D.J.

6. The impact of the hake Merluccus spp. longline fishery off South Africa on Procellariiform seabirds

   white-chinned petrels a year in South African waters at a rate of 0.44 birds per 1000 hooks. This ... shelf water of South Africa. Participants were required to record any birds caught, and these data were ... supplemented by ship-based observers on several vessels. Longlines are set at night, and the white-chinned ... during gear setting. Small numbers of great shearwaters Puffinus gravis and pintado petrels Daption ...

   Meeting Document : WG-FSA-97/55 : Author(s): Boix-Hinzen, C., Barnes, K.N., Ryan, P.G.

7. BEACH DEBRIS SURVEY – MAIN BAY, BIRD ISLAND, SOUTH GEORGIA 1995/96

   Abstract:  The sixth year of surveys of beached man-made debris at Bird Island, South Georgia ... number of items collected at the end of summer (March) was 75% greater than the previous year, which was ... revealed a total of 710 items, 2% less than the record total of 725 items in 1994/95. However, whereas the ... total amount of debris collected during the winter (April-September) was 40% lower than in 1994/95, the ...

   Meeting Document : CCAMLR-XVI/BG/4 : Author(s): Delegation of the United Kingdom

8. The use of morphometric parameters for the determination of sex of Adelie penguins

   morphometric parameters was examined for breeding birds of known sex at Bechervaise Island near Mawson Station ... discriminant score be determined for a single operator and at each breeding colony to reduce these sources of ... Abstract:  The ability to determine the sex of Adélie penguins by discriminant analysis of ... , Antarctica (latitude 67°36’S, longitude 62°53’E). It was found that 89 % of birds could be correctly sexed by ...

   Meeting Document : WG-CEMP-91/5 Rev. 1 : Author(s): K.R. Kerry, D.J. Agnew, J.R. Clarke and G.D. Else (Australia)

9. Preliminary report on the South Orkneys Ecosystem Studies (SOES) field work undertaken by RRS James Clark Ross (JR15004) and associated field camps in January–February 2016

   2015-16. The research cruise consisted of collection of at-sea data on the distribution, abundance and ... vessel and field camps on Monroe Island, Powell Island and at Signy where satellite tracking of penguins ... Abstract:  This paper briefly describes the rationale and structure of the research cruise that ... formed a key component of the co-ordinated, multi-national South Orkney Ecosystems Studies focusing on ...

   Meeting Document : WG-EMM-16/19 : Author(s): J. Watkins, O.R. Godø, S. Fielding, C. Reiss, P. Trathan and E. Murphy

10. The three-frequency method for classifying the species and assessing the size of two euphausiids (Euphausia superba and Euphausia crystallorophias)

    echo-integrations, made simultaneously either at two or at three frequency, and of the results of net ... rule methodologies. This paper explores applications of the multi-frequency method using data from ... , the sampled areas, the instrumental and the sampling strategies varied. First, on the basis of the ... acoustic estimates of euphausiid lengths, derived from the fluid sphere model, are compared with lengths ...

    Meeting Document : WG-EMM-02/37 : Author(s): M. Azzali, G. Lanciani and I. Leonori (Italy)

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