Resultados de la búsqueda
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Results of 2016 pop-off satellite archival tagging of Antarctic toothfish in the Ross Sea region
proposed to be implemented by a number of Members, we suggest that additional work, including product ... in the southern Ross Sea, data from two tags were reported via Argos (one with full data, one with ... development, is urgently needed to develop best practice guidance for tagging toothfish with PSAT tags. Author ...
Meeting Document : WG-SAM-17/33 : Autor(es): C.D. Jones and S.J. Parker
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Effect of orientation on broadband acoustic scattering of Antarctic krill Euphausia superba: implications for inverting zooplankton spectral acoustic signatures for angle of orientation
orientation corresponding to each insonification, revealed that echo spectra from krill near broadside ... echo spectra had a more erratic structure, with several closely spaced nulls of variable depth. The ... pattern of changes in echo spectra with orientation for the experimentally measured acoustic returns was ... inversion technique can be implemented using a generic empirical model space to determine angle of ...
Meeting Document : WG-EMM-99/41 : Autor(es): L.V. Martin Traykovski (USA), R.L. O’Driscoll (New Zealand) and D.E. McGehee (USA)
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Admiralty Bay (South Shetland Islands) - long-term marine monitoring program
vulnerable region of Western Antarctic. It is widely assumed that Antarctic biota are sensitive to ... predictions of future change. Comparison of the collected data with the archive data sets will allow us to ... biotic elements in Admiralty Bay. In this paper we provide WG-EMM with an update on proposed project ... ". This project will continue to develop over the coming years and results we will be presented and ...
Meeting Document : WG-EMM-15/47 : Autor(es): A. Panasiuk-Chodnicka, M. Korczak-Abshire, M.I. Żmijewska, K. Chwedorzewska, E. Szymczak, D. Burska, D. Pryputniewicz-Flis and K. Łukawska-Matuszewska (Poland)
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Fish prey of the wandering albatross Diomedea exulans at South Georgia
identified otoliths (32% could be identified only as?Macrouridae and?Moridae), Pseudochaenichthys georgianus ... (35%), Muraenolepis microps (33 %) and Chaenocephalus acemtus (20%) predominated, with Notothenia ... %, Chaenocephalus 27%; if digestion and wear had reduced otoliths by 10% the values would be Pseudochaenichthys 54 ... . It seems unlikely, therefore, that the albatrosses depend. greatly on the fishery for acquisition of ...
Meeting Document : SC-CAMLR-VII/BG/05 : Autor(es): J.P. Croxall, A.W. North and P.A. Prince (United Kingdom)
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Revised growth and length-weight parameters for Antarctic toothfish in the Ross Sea region (881 & 882AB)
previously used, however there was some suggestion that the shape of the growth curve may be better ... lower than with the previous von Bertalanffy relationship. But estimates of % SSB 2017 were very similar ... conclusions were very similar and either of the updated relationships may be adequate parameterisations in the ...
Meeting Document : WG-FSA-2019/11 : Autor(es): A. Dunn and S. Parker
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A review of data on abundance, trends in abundance, habitat use and diet of ice-breeding seals in the Southern Ocean (submitted to the 2008 Joint CCAMLR-IWC Workshop)
important first steps for improving ecosystem models. This review focuses on seals that breed in ice ... , but noted that adjustments for haul-out would also have to be made for these species. From 1970 to ... stressed that this did not include the potentially significant number of seals that might be in ice-free ... data to allow estimates of densities of seals hauled out to be made with line transect methods. Some ... estimates be treated only as the good-faith guesses that they were offered as. The methods used during the ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 49–74 : Autor(es): Southwell, C., J. Bengtson, M. Bester, A.S. Blix, H. Bornemann, P. Boveng and M. Cameron, J. Forcada, J. Laake, E. Nordøy, J. Plötz, T. Rogers, D. Southwell, D. Steinhage, B.S. Stewart and P. Trathan
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A declining trend in the abundance of Notothenia rossii marmorata and Notothenia gibberifrons observed in fjords in two sites in the South Shetland Islands
as significant. The material for the current study was obtained with trammel nets at Potter Cove ... species in relation to Notothenia neglecta, a species with similar ecological habits in the fjords. Since ... neighbouring sites in the South Shetland Islands. This phenomenon might be explained as a consequence of the ... was not controlled, with the result that various yields were obtained per haul (Figure 2). Potter ... assumption is that changes in population sizes will be reflected in proportional changes in catches ... , implies that in future years recruitment to the commercial fisheries will be low, and recovery to levels ... material for the current study was obtained with trammel nets at Potter Cove, King George/25 de Mayo 1 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 263–274 : Autor(es): Barrera-Oro, E. and E. Marschoff
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Interannual variation to the gonad cycle of the mackerel icefish
Abstract: Spawning by Antarctic fish is generally considered to be seasonal and restricted to a ... brief period during the autumn and winter. Arising from this it has been assumed that the gonadal ... variation are discussed with respect to feeding conditions. Author(s): I. Everson (United Kingdom), K.-H ...
Meeting Document : WG-EMM-00/45 : Autor(es): I. Everson (United Kingdom), K.-H. Kock (Germany) and J. Ellison (United Kingdom)
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Movement of Patagonian toothfish (Dissostichus eleginoides) in Subarea 48.3
between male and female fish of the same maturity category. Male and females with developed, ripe and ... release. Author(s): T. Peatman, S.M. Martin, J. Pearce and R.E. Mitchell (United Kingdom) Title ...
Meeting Document : WG-SAM-12/19 : Autor(es): T. Peatman, S.M. Martin, J. Pearce and R.E. Mitchell (United Kingdom)
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New results of oceanological research obtained on Ukrainian longline vessels in the CCAMLR area of responsibility in the season 2018-2019
masses and relationship of temperature with catches of toothfish in Weddell, Ross and Amundsen Seas are ... effort. Author(s): V. Paramonov, L. Pshenichnov, I. Slypko, P. Zabroda, A. Bazhan and T. Pestovskyi ...
Meeting Document : WG-FSA-2019/38 : Autor(es): V. Paramonov, L. Pshenichnov, I. Slypko, P. Zabroda, A. Bazhan and T. Pestovskyi