Resultados de la búsqueda
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The Evangelistas Islets, Chile: a new breeding site for black-browed albatrosses
from aerial photographs taken on 13 October 2002 which yielded an estimate of the number of breeding ... Lobos Islets, two of the four islets in the Evangelistas group. This new record raises to four the ... breeding site for black-browed albatrosses Approval: Approved ...
Meeting Document : WG-FSA-03/10 : Autor(es): J. Arata (Chile), G. Robertson (Australia), J. Valencia (Chile) and K. Lawton (Australia)
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Considerations for CEMP data collection and submission in relation to using nest cameras to monitor surface-nesting colonial seabirds
are similar, provide comment on nest camera data utility for CEMP, and outline gaps in our assessment ... Abstract: We provide an outline of data that can be generated from nest camera images and ... describe how they relate to the parameters outlined in the CEMP Standard Methods. We discuss where the two ... of their use for this purpose. We provide suggestions for how CEMP data submission forms could be ...
Meeting Document : WG-EMM-18/27 : Autor(es): L. Emmerson and C. Southwell
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Reproductive analysis of Dissostichus mawsoni in SSRU 5841C-a for the exploratory longline fishery in 2012/13 of Korea
Abstract: In the Division 58.4.1 there are two stocks of Dissostichus mawsoni, which is ... analyze the reproductive ecology of Dissostichus mawsoni in SSRU 58.4.1C-a based on the histological ... methods as a part of Korean research plan for Dissostichus spp. in SSRUs 58.4.1 C and E during 2012/2013 ... the female was 2.6, and 1.1 for the male. The hepatosomatic index of the female (2.5) and male (2.3 ...
Meeting Document : WG-SAM-13/27 : Autor(es): I.J. Yeon, J.S. Lee, Y.J. Kwon, M.A. Jeon, S.K. Choi, K.J. Seok, D.W. Lee, K.Y. Ku and H.J. Kim (Republic of Korea)
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The reliability of VHF telemetry data for measuring attendance patterns of marine predators: a comparison with Time Depth Recorder data
Abstract: VHF radiotelemetry data has been used for over thirty years to monitor the behavior ... , suggesting that VHF data is an inappropriate method for collecting attendance data. Modelling the raw VHF ... decreasing cost over the last thirty years, TDRs are a more appropriate means to collect attendance data on ... reproductive and foraging ecology of these species to inferring ecosystem changes based on variation in ...
Meeting Document : WG-EMM-15/P05 : Autor(es): A.D. Lowther, H. Ahonen, G. Hofmeyr, W.C. Oosthuizen, P.J. Nico De Bruyn, C. Lydersen and K. Kovacs
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Using preferred habitat models for chinstrap penguins (Pygoscelis antarctica) to help improve krill fisheries management during the penguin breeding season
two simple variables; the distance to the colony and a measure of the direction of travel towards the ... find that the chinstrap penguins breeding on the South Orkney Islands use areas which overlap with ... frequently used krill fishing areas. If the krill fisheries continue to expand, then impacts on the penguin ... investigate the effects of prey depletion on predator populations, and to ensure that management is addressed ...
Meeting Document : WG-EMM-17/33 : Autor(es): V. Warwick-Evans, N. Ratcliffe, H.L. Clewlow, L. Ireland, A. Lowther, F. Manco and P.N. Trathan
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Estimates of abundance of Dissostichus eleginoides and Champsocephalus gunnari from the random stratified trawl survey in the waters surrounding Heard Island in Division 58.5.2 for 2019
the past 10 years. Biomass estimates for the managed by-catch species C. rhinoceratus and Macrourus ... last 4 years. The 2019 biomass estimates for each of the three Bathyraja spp. (skates) were the highest ... in the last 10 years. Length measurements and sex were taken for nearly 15 000 fish and for more than ... year. Catches of skates were similar to those of the last three years, which have been higher than ...
Meeting Document : WG-FSA-2019/03 : Autor(es): G.B. Nowara, T.D. Lamb and P. Ziegler
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Proposal for a longline survey to determine toothfish population connectivity between Subareas 48.2 and 48.4
distributions of benthic bycatch species. This proposal includes a three-year data collection and two-year data ... Abstract: This paper presents a proposal for a longline survey connecting the currently ... Dissostichus sp population structures in this region, and improving available data on bathymetry and associated ... analysis plan towards the development of a stock hypothesis for the northern regions of 48.2 and southern ...
Meeting Document : WG-SAM-16/33 : Autor(es): Delegation of the United Kingdom
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Proposal for a longline survey to determine toothfish population connectivity between Subareas 48.2 and 48.4
distributions of benthic bycatch species. This proposal includes a three-year data collection and two-year data ... Abstract: This paper presents a proposal for a longline survey connecting the currently ... Dissostichus sp population structures in this region, and improving available data on bathymetry and associated ... analysis plan towards the development of a stock hypothesis for the eastern regions of 48.2 and southern ...
Meeting Document : WG-FSA-16/40 Rev. 1 : Autor(es): Delegation of the United Kingdom
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Surface areas of seabed within the 500 m isobath for regions within the South Shetland Islands (Subarea 48.1)
Abstract: Bathymetric maps of two major areas within the South Shetland Islands were generated ... integrated data sets, areas of seabed within the 500 m isobath for six levels of depth strata (0-50 m, 51 ... - 100 m, 101-200 m, 201-300 m, 301-400m, 401-500 m) were computed. Areas were calculated based on true ... III (USA) Title: Surface areas of seabed within the 500 m isobath for regions within the South ...
Meeting Document : WG-FSA-98/14 : Autor(es): C.D. Jones, S.N. Sexton and R.E. Cosgrove III (USA)
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Comparison of NASC values calculated by swarm-based and grid-based acoustic data processing methods for Antarctic krill density estimation
-ASAM-2017 except that the dB difference window of Sv 120 kHz-Sv 38kHz is set 0 to 20 dB. And the two ... difference tests (Kruskal-Wallis tests) to examine the validation of the developed swarm-based method for ... and grid-based method show non-significant difference and significant linear relationship for all the ... method could be of good agreement. During the meeting, the subgroup suggested further analysis on swam ...
Meeting Document : SG-ASAM-18/04 Rev. 1 : Autor(es): X. Yu, X. Wang and X. Zhao