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1. Diel vertical distribution of Antarctic krill around the South Shetland Islands in February 2019 and its potential effect on biomass estimation

   vertical distribution of krill swarms around the South Shetland Islands in Subarea 48.1 were analyzed based ... on data collected by the Chinese fishing vessel participating in the international 2019 Area 48 ... survey. Results show that more krill swarms were found in shallower depth at night than during daytime ... likely underestimate the krill density due to the shallow distribution pattern of the animal, which may ...

   Meeting Document : SG-ASAM-2019/05 : Autor(es): X. Wang, X. Yu, J. Zhang and X. Zhao

2. Glider-based estimates of Antarctic krill in Bransfield Strait, and the West shelf off Livingston Island, Antarctica

   biomass assessments of Antarctic krill (Euphausia superba) in the Bransfield Strait and the west shelf of ... -December 2018 and mid-March 2019. We compare mean biomass density (g m-2) estimates derived from gliders to ... replace vessel-based biomass surveys. In the Bransfield Strait, glider-based biomass density estimated ... over 13 years of ship surveys. On the west shelf of Livingston Island, glider-based biomass densities ...

   Meeting Document : WG-EMM-2019/13 : Autor(es): C. Reiss, A. Cossio, G. Cutter, J. Walsh and G. Watters

3. Some components of uncertainty in the CCAMLR 2000 acoustical survey of krill

   Abstract:  Quickly studied and quantified were sources of uncertainty in the CCAMLR 2000 ... acoustical estimate of krill abundance in FAO statistical area 48. The variance in system calibration was ... evaluated in relation to the effects of variant water temperature and salinity on sound speed, sound ... absorption, and beam characteristics. Uncertainty in krill target strength (TS) was estimated using a ...

   Meeting Document : WG-EMM-00/49 : Autor(es): D.A. Demer (USA)

4. Competition-induced starvation drives large-scale population cycles in Antarctic krill

   —exhibits a five to six year population cycle, with oscillations in biomass exceeding one order of magnitude ... Abstract:  Antarctic krill (Euphausia superba)—one of the most abundant animal species on Earth ... cycles in Antarctic krill Approval:  Approved Secretariat Workflow Status:  Content Approved Delegation ...

   Meeting Document : WG-EMM-18/P05 : Autor(es): A.B. Ryabov, A.M. de Roos, B. Meyer, S. Kawaguchi and B. Blasius

5. RECENT POPULATION ESTIMATES AND TRENDS IN NUMBERS OF ALBATROSSES AND GIANT PETRELS BREEDING AT THE SUB-ANTARCTIC PRINCE EDWARD ISLANDS

   group (Marion and Prince Edward islands) was conducted during December 2008, seven years after the ... have remained stable, whereas the population on Prince Edward Island decreased by 20% from 2001 to 2008 ... similar in 2001 and 2008. Counts of both sooty albatrosses Phoebetria spp. were substantially higher at ... Prince Edward Island in 2008, possibly as a result of better coverage compared to 2001. Dark-mantled ...

   Meeting Document : WG-EMM-10/P4 : Autor(es): P.G. Ryan, M.G.W. Jones, B.M. Dyer, L. Upfold and R.J.M. Crawford

6. Recent population estimates and trends in numbers of albatrosses and giant petrels breeding at the sub-Antarctic Prince Edward Islands

   group (Marion and Prince Edward islands) was conducted during December 2008, seven years after the ... have remained stable, whereas the population on Prince Edward Island decreased by 20% from 2001 to 2008 ... similar in 2001 and 2008. Counts of both sooty albatrosses Phoebetria spp. were substantially higher at ... Prince Edward Island in 2008, possibly as a result of better coverage compared to 2001. Dark-mantled ...

   Meeting Document : WG-EMM-10/P04 : Autor(es): P.G. Ryan, M.G.W. Jones, B.M. Dyer, L. Upfold and R.J.M. Crawford

7. Aerobic dive limit: how often does it occur in nature?

   animal is it’s aerobic dive limit (ADL). The ADL has only been measured in a few species. The goal of ... constraint in their everyday behaviors. An important component of the physiological capability of any diving ... within the cADL. In contrast, many individuals of both sea lion species exceeded the cADL, some by ... with the dive pattern of individual animals. In both Antarctic Fur Seals and Australian sea lions ...

   Meeting Document : WG-EMM-00/48 : Autor(es): D.P. Costa, N.J. Gales and M.E. Goebel (USA)

8. A statistical method for analysing the extent of IUU fishing in CCAMLR waters: application to Subarea 48.3

   incident. 5. Three years were analysed, 1998/99, 1999/00 and 2000/01. Each year covered fully the period 1 ... used previously to estimate IUU activity in CCAMLR. We recommend its continued use in Subarea 48.3 and ... to South Georgia covers all possible areas of fishing for toothfish in Subarea 48.3. The method uses ... data from FPV cruises in Subarea 48.3, and the encounters between FPVs and IUU fishing activity, to ...

   Meeting Document : WG-FSA-02/4 : Autor(es): D.J. Agnew and G.P. Kirkwood (United Kingdom)

9. Detection of anti-brucella antibodies in Weddell seals (Leptonychotes weddellii) from Cape Shirreff, Antarctica

   de Medicina Preventiva Animal, Facultad de Ciencias Veterinarias y Pecuarias of the Universidad de ... immunoassay: Compelisa®?(Veterinary Laboratories Agency, UK) and c-ELISA (FAO/IAEA, 1994). In five of the ... bacteria of the genus Brucella in L. weddellii and point out the necessity of complementary studies to know ... the etiology and their infection epidemiology in this region of the world. Author(s):  O. Blank, P ...

   Meeting Document : WG-EMM-01/48 : Autor(es): O. Blank, P. Retamal, P. Abalos and D. Torres (Chile)

10. INTERACTIONS OF PATAGONIAN TOOTHFISH FISHERIES WITH KILLER AND SPERM WHALES IN CROZET EXCLUSIVE ECONOMIC ZONE: AN ASSESSMENT OF DEPREDATION LEVELS AND INSIGHTS ON POSSIBLE MITIGATION SOLUTIONS

    longline fishery is exposed to high levels of depredation by killer and sperm whales. In this context, this ... study (i) provides estimations of annual depredation levels on a 5-years period (2003-2008), (ii ... the largest part of this loss (70%) while sperm whales had a lower impact (30%). Photo-identification ... belonging to four different pods were involved in 81.3% of the interaction events. We also estimated that a ...

    Meeting Document : WG-IMAF-09/12 : Autor(es): P. Tixier, N. Gasco, G. Duhamel and C. Guinet (France)

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