Search results
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Potential effects of UV-B on krill – experimental and genetic studies
Abstract: We irradiated captive juvenile Euphausia superba in the laboratory with lower than ... spring surface levels of ultraviolet-B, ultraviolet-A and photosynthetically active radiation, in order ... to examine their response in terms of mortality and generalised activity. Levels of ... animals in the dark survived. Addition of ultraviolet-B typical of depths up to 15 m were found to ...
Meeting Document : WG-EMM-99/24 : Author(s): S. Newman, S. Jarman, S. Nicol, D. Ritz, H. Marchant, N. Elliot and A. McMinn (Australia)
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CEMP cameras and satellite transmitters installation by Ukraine at the Galindez, Petermann, and Yalour Islands penguin colonies as a part of CEMP Fund projects
Abstract: In the report we inform shortly on the activity in the Ukrainian Vernadsky Antarctic ... Station area on service of CEMP cameras and installation ARGOS satellite tags in penguin colonies as part ... Network in Subarea 48.1' and 'Tracking the overwinter habitat use of krill dependent predators ... from Subarea 48.1'. In season 2016/17 biologists winteres made service for nine cameras and ...
Meeting Document : WG-EMM-17/21 : Author(s): G. Milinevsky, I. Dykyy, D. Lutsenko, O. Savitsky, A. Simon, M. Telipska, V. Lytvynov and L. Pshenichnov
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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 : Author(s): Secretariat
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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 : Author(s): Watkins, J.L., Brierley, A.S.
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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 : Author(s): G. Skaret, B.A. Krafft, L. Calise (Norway), J. Watkins (UK), R. Pedersen and O.R. Godø (Norway)
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KRILL FISHERY REPORT: 2009 UPDATE
Abstract: Five Members (6 vessels) are fishing for krill in Area 48 in 2008/09, and have taken ... ). Most of this catch was taken in Subarea 48.2 (51316 t) with the remainder in Subarea 48.1 (31533 t ... ). The forecast total catch of krill for the current season falls in the range 109000-147000 t. This ... compares with 156521 t of krill reported in STATLANT data in 2007/08. Recent developments in the krill ...
Meeting Document : WG-EMM-09/06 : Author(s): Secretariat
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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 : Author(s): G.A. Daneri, A.R. Carlini (Argentina) and P.G.K. Rodhouse (United Kingdom)
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HEARD ISLAND AND MCDONALD ISLANDS EXCLUSIVE ECONOMIC ZONE 2009/10 IUU CATCH ESTIMATE FOR PATAGONIAN TOOTHFISH
(IUU) fishing in Australia’s exclusive economic zone (EEZ) off Heard Island and the McDonald Islands ... (HIMI). There have been no apprehensions for illegal fishing in the HIMI EEZ since the Maya V in January ... 2004. The most recent apprehension in the neighbouring French EEZ off Kerguelen Island was the Apache ... in June 2004. Despite the deterrence to IUU fishing in the HIMI region, the Australian patrols have ...
Meeting Document : CCAMLR-XXIX/BG/29 : Author(s): Delegation of Australia
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The migration patterns of Electrona carlsbergi (Tåning, 1932)
describes possible ways and means (mechanisms) by which this species carries out meridional migration in ... Zone (SPFZ) occurs regularly although its intensity changes in time. The densest concentrations are ... observed here in the spring-summer period (November to February) when zooplankton. the main dietary ... component for E. carlsbergi, is undergoing rapid development. In various areas of the SPFZ and in all ...
Meeting Document : WG-FSA-93/18 : Author(s): A.N. Kozlov (Russia)
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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 : Author(s): R. Hewitt (USA)