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1. Estimation of the fishery–krill–predator overlap

   by CCAMLR (catch in the Critical Period and Distance [CPD], Agnew-Phegan index, and Realised ... distributions. Only catch in the CPD can presently be used to estimate overlap in areas other than Subarea 48.1 ... . The catch in the CPD and the Agnew-Phegan index were closely correlated, as were the RPO and Schroeder ... reduced overlap in Subarea 48.1 after 1990. The RPO and Schroeder index indicated a greater increase in ...

   Meeting Document : WG-EMM-99/11 : Автор(ы): Secretariat

2. Antarctic's pelagic ecosystem: how environmental change will affect Salpidae population structure

   Abstract:  Dynamic climate changes have become noticeable in recent decades, especially in the ... - Euphausia superba. Presumably as a result of climatic fluctuations, a decrease in the numbers of this ... crustacean has been recorded, followed by an increase in the population of the gelatinous zooplankter Salpa ... thompsoni. In the inquiry herein presented, population and morphometric analyses on Salpa thompsoni have ...

   Meeting Document : WG-EMM-15/P08 : Автор(ы): A.W. Słomska, A.A. Panasiuk-Chodnicka, M.I. Żmijewska and M.K. Mańko (Poland)

3. A comparison of acoustic targets at South Georgia and the South Orkney Islands during a season of profound krill scarcity

   Abstract:  Dual frequency (38 and 120 kHz) acoustic surveys of shelf-break regions in the vicinity ... of Willis Islands, South Georgia and Coronation Island, South Orkneys, both in the Atlantic sector of ... the Southern Ocean, were carried out from RRS lames Clark Ross during January 1994. Difference in ... a new generic target strength (TS) relationship was derived. This relationship was used in ...

   Meeting Document : WG-EMM-95/75 : Автор(ы): Watkins, J.L., Brierley, A.S.

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

   early in the fishing season (January/February), using two different krill fishing vessels as platforms ... 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 ... target strength estimation and target identification. In order to avoid variability due to differences in ...

   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)

5. An index of per capita recruitment

   )eM where R1 is the proportion of age-1 animals sampled in year y and M is the post-recruit mortality ... the population is available; and 4) the proportion of age-1 animals in the sample can be determined ... assumed in order to investigate the resulting distributions of PCR. Distributions of PCR are skewed toward ... conclusions are insensitive to changes in the shape of the functional relationship between spawners and ...

   Meeting Document : WG-EMM-99/50 : Автор(ы): R. Hewitt (USA)

6. Winter habitat selection by Antarctic krill will increase krill-predator-fishery interactions during ice free years

   Abstract:  Climate change will affect populations and fisheries in the Southern Ocean as area ... typically covered by seasonal sea-ice become ice free in some winters (Stammerjohn et al. 2008). For ... of a commercial fishery (Nicol et al. 2010; Watters et al. 2013), recent declines in seasonal sea-ice ... around the Antarctic Peninsula in winters with contrasting ice conditions provide the first acoustic ...

   Meeting Document : WG-EMM-15/05 : Автор(ы): C.S. Reiss, A. Cossio, C.D. Jones, A. Murray, G. Mitchell, J. Santora, K. Dietrich, E. Weiss, C. Gimpel, J. Walsh and G.M. Watters (USA)

7. Age validation of juvenile Notothenia rossii at Potter Cove, South Shetland Islands, using mark-recapture data

   Abstract:  Among all validation methods of age determination in fish, release of known age and ... principle of annual deposition of an annulus in scales and otoliths. Of 132 juvenile specimens (TL = 22.1 ... –38.1 cm) tagged and released in successive years from 2004 to 2010, 7 were recaptured at the same site ... after periods of 1–13 months. In scales of five specimens recovered after 10–13 months, one extra ...

   Meeting Document : WG-FSA-13/P01 : Автор(ы): E. Moreira, E. Barrera-Oro and M. La Mesa

8. Male krill grow fast and die young

   examined with an extensive dataset derived from scientific surveys in the Indian Ocean sector and the ... southwest Atlantic sector, and from the krill fishery in the Southern Ocean. The percentage of males in size ... classes of adult krill was generally high in krill of 30-35 mm total length, always low in 38-42 mm krill ... , sometimes showed higher values in 45-50 mm krill, but always decreased in the largest krill (>50 mm ...

   Meeting Document : WG-EMM-07/P6 : Автор(ы): S. Kawaguchi, L.A. Finley, S. Jarman, S.G. Candy (Australia), R.M. Ross, L.B. Quetin (USA), V. Siegel (Germany), W. Trivelpiece (USA), M. Naganobu (Japan) and S. Nicol (Australia)

9. Cephalopod diet of the southern elephant seal (Mirounga leonina) at King George Island, South Shetland Islands

   Abstract:  In the austral summer of 1995/96, 25 southern elephant seals, Mirounga leonina, were ... present in 72% of the individuals sampled (n=18). Seven species of squid and 3 of octopus were identified ... . Overall, the squid species Psychroteuthis glacialis was by far the most important prey in terms of numbers ... (77%), biomass (80.8%) and frequency of occurrence (94.4%). Next in importance in terms of mass in the ...

   Meeting Document : WG-EMM-99/13 : Автор(ы): G.A. Daneri, A.R. Carlini (Argentina) and P.G.K. Rodhouse (United Kingdom)

10. Oil, marine debris and fishing gear associated with seabirds at Bird Island, South Georgia 1995/96

    Abstract:  In the third year of standardised recording of oil, fishing gear and marine debris at ... grey-headed albatrosses (two items). One gentoo penguin chick was released from entanglement in a ... were reported in association with grey-headed albatrosses (one squid jig decoy), black-browed ... (two squid jigs; six hooks swallowed and impaled (four in adults, two in chicks), the remainder being ...

    Meeting Document : SC-CAMLR-XV/BG/04 : Автор(ы): Delegation of the United Kingdom

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