Resultados de la búsqueda
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A new bathymetric compilation for the South Orkney Islands, Antarctic Peninsula (49°–39°W to 64°–59°S): insights into the glacial development of the continental shelf
Abstract: We present a new, high resolution (300 m) bathymetric grid of the South Orkney Islands ... and surrounding continental shelf, northeast of the Antarctic Peninsula. The new grid, derived from a ... compilation of marine echo-sounding data improves previous regional bathymetric representations and helps to ... visualise the morphology of the shelf in unrivalled detail. The compilation forms important baseline ...
Meeting Document : WG-EMM-14/P01 : Autor(es): W.A. Dickens, A.G.C. Graham, J.A. Smith, J.A. Dowdeswell, R.D. Larter, C.-D. Hillenbrand, P.N. Trathan, J.E. Arndt and G. Kuhn
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Infectious diseases of Antarctic penguins: current status and future threats
alterations due to climate change: the Western Antarctic Peninsula, the Ross Sea, and coastal regions of East ... Antarctica. From previous reports we know that penguin species are highly susceptible to a number of ... infectious diseases. The number of investigations into infectious diseases of penguins has continued to ... increase over the last 50 years. However, issues of data not being published and a lack of formal risk ...
Meeting Document : WG-EMM-14/53 : Autor(es): W.W. Grimaldi, P.J. Seddon, P.O.B. Lyver, S. Nakagawa and D.M. Tompkins (New Zealand)
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Investigating the uncertainty of age determinations for Patagonian toothfish (Dissostichus eleginoides) and the implications for stock assessment
Abstract: We revised the method of Candy et al. (2012) to estimate the ageing error matrix ... (misclassification matrix) to address some issues regarding true ages not being the mode at the extremes of the ... matrix and a lack of smoothness in the probabilities for ages above 25 years. Positive errors now ... greater than the plus group are incorporated into the final row of the misclassification matrix. We ...
Meeting Document : WG-FSA-14/46 : Autor(es): P. Burch, P. Ziegler, W. de la Mare and D. Welsford (Australia)
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East Antarctica Planning Domain MPA Planning Reference Document #3: Draft MPA Report Part 3 – Research and Monitoring (update of SC-CAMLR-IM-I/BG/01)
Abstract: This paper is Part 3 of an update of the draft MPA Report for the East Antarctica ... three parts is provided in SC-CAMLR-XXXIII/BG/38. This paper provides a more detailed account of ... research and monitoring in the East Antarctica Planning Domain and how this can form the basis of a ... research and monitoring program to support the East Antarctica Representative System of Marine Protected ...
Meeting Document : SC-CAMLR-XXXIII/BG/40 : Autor(es): Delegations of Australia, France and the European Union
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Biomass of Antarctic krill around South Shetland using 2-dB difference method in April 2016
operated by Norway, Korea, and Japan, etc. Major fishing area is the surroundings of South Sheltland where ... . CCAMLR (Convention for the Conservation of Antarctic Marine Living Resources) is currently implementing a ... utilize Krill resources continuously. This study is aimed to estimate the density and the biomass of Krill ... that inhabit in the surroundings of South Sheltland by using acoustics. An acoustic survey was ...
Meeting Document : WG-EMM-16/60 : Autor(es): Delegation of the Republic of Korea
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Joint research proposal for the Dissostichus spp. exploratory fishery in East Antarctica (Divisions 58.4.1 and 58.4.2) by Australia, France, Japan, Republic of Korea and Spain
Australia (commenced 2015/16), France (commencing 2016/17), Japan (commencing 2016/17), Republic of Korea ... plan to be presented by all proponents of research in Divisions 58.4.1 and 58.4.2 to WG-FSA-16 (WG-SAM ... progress an assessment of toothfish stock/s in the area (WG-SAM-16 para. 3.13). We present here an updated ... research proposal including the research plans of Australia (WG-SAM-16/09), France (WG-SAM-16/01 & 16 ...
Meeting Document : WG-FSA-16/29 : Autor(es): Delegations of Australia, France, Japan, Republic of Korea and Spain
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Spatio–temporal dynamics in maturation and spawning of Patagonian toothfish Dissostichus eleginoides on the subantarctic Kerguelen Plateau
Abstract: This study investigated maturation and spawning of Patagonian toothfish Dissostichus ... Sector of the Southern Ocean based on gonads and otoliths collected between years 2004–2015, and using ... histological analyses and calibration of macroscopic staging criteria. Dissostichus eleginoides at HIMI spawn ... throughout the late autumn and winter months of May–August, and spawning activity is concentrated on slopes ...
Meeting Document : WG-FSA-17/P04 : Autor(es): P. Yates, P. Ziegler, D. Welsford, J. McIvor, B. Farmer and E.Woodcock
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Overview of global trade in toothfish (Dissostichus spp.)
GLOBEFISH unit, an analysis was conducted for the five-year period of 2012–2016 on the global trends of the ... . Captures the global trade of toothfish. The analysis showed that over this five-year period quantity of ... imports globally have seen an increase of 16.08% and exports have seen an increase in 15.54%. The average ... global unit value price of toothfish products has also shown an increase with imports increasing by 19.68 ...
Meeting Document : CCAMLR-XXXVI/BG/05 Rev. 1 : Autor(es): CCAMLR Secretariat
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Change in environmental conditions of the Southern Ocean observed by satellites and data-assimilating models between 1981 and 2019
Abstract: We provide a summary of environmental change in the Southern Ocean over the period of ... concentration from merged observation of SeaWiFS and MODIS-Aqua (1987–2019); (2) sea-surface temperature (SST ... ) from the AVHRR series of NOAA satellites (1981–2019); (3) spatial gradient of SST (as an indicator of ... model (VGPM); (6) estimates of mixed layer depth from the data-assimilating US Navy hindcast model HyCOM ...
Meeting Document : WG-EMM-2019/39 : Autor(es): M. Pinkerton
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First increment validation of Patagonian toothfish (Dissostichus eleginoides) from Heard Island
one opaque and one translucent increment is formed each year on the sectioned face of sagittal ... routinely ageing D. eleginoides, resulting in differences of ageing data presented. One area that was ... assumed to cause interpretation differences was the position of the first increment that corresponded with ... the end of the first year of growth. While there is a general consensus that the observed increments ...
Meeting Document : WG-FSA-05/61 : Autor(es): K. Krusic-Golub, C. Green and R. Williams (Australia)