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1. Investigation of the sensitivity of the Ross Sea toothfish assessment to withholding subsets of the available data

   time as more years’ data becomes available. The 2009 stock assessment of Antarctic toothfish in the ... estimated by the models arising from withholding data was found to be highest in the earlier years of stock ... years, the change in estimated biomass arising from withholding data was much smaller, with values ... very sensitive to changes in years of tag release and recapture data available to the model. For ...

   Meeting Document : WG-SAM-11/17 : Автор(ы): S. Mormede (New Zealand)

2. Southern right whale (Eubalaena australis) reproductive success is influenced by krill (Euphausia superba) density and climate

   condition and, therefore, on foraging success. This, in turn, might be affected by climatically driven ... change in the abundance of the species main prey, krill (Euphausia superba), on the feeding grounds ... between 1997 and 2013 in southern Brazil, where the species concentrate during their breeding season. The ... correlations were found with krill densities (r = 0.69, p = 0.002, lag 0 years), Oceanic Niño Index (r = −0.65 ...

   Meeting Document : WG-EMM-16/P06 : Автор(ы): E. Seyboth, K.R. Groch, L. Dalla Rosa, K. Reid, P.A.C. Flores and E.R. Secchi

3. AN ECOSYSTEM-BASED MANAGEMENT PROCEDURE FOR KRILL FISHERIES: A METHOD FOR DETERMINING SPATIALLY-STRUCTURED CATCH LIMITS TO MANAGE RISK OF SIGNIFICANT LOCALISED FISHERIES IMPACTS ON PREDATORS.

   krill fisheries which draws together past experience in CCAMLR. It provides an empirical ecosystem ... Abstract:  In this paper, we develop an ecosystem-based, precautionary management procedure for ... of predator-prey dynamics beyond that evident in the data. It is a natural extension of the current ... . Consequently, its formalism means there is no need to undertake a staged approach in providing advice. The ...

   Meeting Document : WG-SAM-08/16 : Автор(ы): A. Constable and S. Candy (Australia)

4. An ecosystem-based management procedure for krill fisheries: a method for determining spatially-structured catch limits to manage risk of significant localised fisheries impacts on predators

   krill fisheries which draws together past experience in CCAMLR. It provides an empirical ecosystem ... Abstract:  In this paper, we develop an ecosystem-based, precautionary management procedure for ... of predator-prey dynamics beyond that evident in the data.  It is a natural extension of the current ... .  Consequently, its formalism means there is no need to undertake a staged approach in providing advice.  The ...

   Meeting Document : WG-EMM-15/36 : Автор(ы): A. Constable and S. Candy (Australia)

5. KRILLBASE: a circumpolar database of Antarctic krill and salp numerical densities, 1926–2016

   this is stored in national archives, sometimes only in notebooks. In order to make these important data ... salp individual (multiple species, and whether singly or in chains). These were combined into a central ... database, KRILLBASE, together with environmental information, standardisation and metadata. The aim is to ... , autecology, higher predator foraging and food web modelling in addition to fisheries management and ...

   Meeting Document : WG-EMM-17/P03 : Автор(ы): A. Atkinson, S.L. Hill, E.A. Pakhomov, V. Siegel, R. Anadon, S. Chiba, K.L. Daly, R. Downie, S. Fielding, P. Fretwell, L. Gerrish, G.W. Hosie, M.J. Jessopp, S. Kawaguchi, B.A. Krafft, V. Loeb, J. Nishikawa, H.J. Peat, C.S. Reiss, R.M. Ross, L.B. Quetin, K. Schmidt, D.K. Steinberg, R.C. Subramaniam, G.A. Tarling and P. Ward

6. Using stationary acoustic platforms to assess precision and accuracy of acoustical krill surveys

   Abstract:  The current CCAMLR protocol specifies daytime acoustic sampling in order to avoid ... issues of diel changes in acoustic scattering strengths. However, due to logistic constraints, acoustic ... a regular basis deployed stationary platforms in the main area for commercial krill harvesting at ... the South Orkney Islands since 2014, and in this report some of these data have been analysed in order ...

   Meeting Document : WG-EMM-2019/32 : Автор(ы): T. Klevjer, G. Skaret and B.A. Krafft

7. Evaluation of Antarctic krill biomass and distribution off the South Orkney Islands 2011-2015

   coverage in all years except 2013. The results show that except from the year 2015, krill densities were ... assessments, but the frequencies operated varied between vessels and years. In addition, the survey coverage ... has varied between years in particular due to ice. In order to allow for comparison of distribution ... . 8 million tons of krill within the stratum in the peak year 2014. There were also consistently ...

   Meeting Document : WG-EMM-15/54 : Автор(ы): G. Skaret, B.A. Krafft, L. Calise (Norway), J. Watkins (UK), R. Pedersen and O.R. Godø (Norway)

8. A brief outline of the biology of the Antarctic silverfish, Pleuragramma antarcticum Boulenger, 1902 (Nototheniidae) from the Antarctic Indian Ocean

   three relatively isolated groups. Fish aged from 0+ to 3+ years live in the epi- mesopelagic zone where ... when they reach 13-16 cm in length and 4-6 years of age. Males reach maturity at 12-18 cm in length and ... species in the outer waters of Antarctica. In the Indian sector of the Southern Ocean there are at least ... there are macro aggregations of plankton, while fish aged from 3+ to 12+ years form near-bottom, pelagic ...

   Meeting Document : WG-FSA-92/11 Rev. 1 : Автор(ы): V.V. Gerasimchuk (Ukraine)

9. Population demography of Antarctic fur seals: the costs of reproduction and implications for life-histories

   animals having been pregnant in the previous year. 6. Reproduction incurs costs to females, in terms of ... Abstract:  1. This study examined the costs of reproduction in terms of future survival and ... reproduction in female Antarctic fur seals from Bird Island, South Georgia. It used mark-recapture data from 11 ... consecutive years, including 3 years when several indices showed that food availability was well below average ...

   Meeting Document : WG-EMM-95/26 : Автор(ы): Reid, K., Croxall, J.P., Lunn, N.J., Boyd, I.L.

10. Seabird research at Cape Shirreff, Livingston Island, Antarctica, 2006/07

    lowest population size in the 10 years of census data. The number of diet samples containing fish was the ... been declining for the past seven years and is at its lowest size in the 10 years of study. Chinstrap ... Abstract:  Our tenth season of seabird research at Cape Shirreff allowed us to assess trends in ... penguin population size, as well as inter-annual variation in reproductive success, diet and foraging ...

    Meeting Document : WG-EMM-07/P1 : Автор(ы): R. Orben, S. Chisholm, A. Miller and W.Z. Trivelpiece (USA)

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