Résultats de la recherche
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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 ... sectors of Antarctica E. carlsbergi is represented by immature specimens 7 to 8 cm in length and 2 years ... of age, indicating dominance by a single cohort. Moreover, a very similar size composition in the ... scale disruptions to the zonality of transport by the ACC under the influence of topogenic factors. This ...
Meeting Document : WG-FSA-93/18 : Auteur(s): A.N. Kozlov (Russia)
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Predation release of Antarctic silverfish (Pleuragramma antarctica) in the Ross Sea
they consume only a small proportion of silverfish (1.9–5.1% by mass) over the southern Ross Sea shelf ... silverfish estimated as being released from predation by fishing (577 tWW/y) was equivalent to about 2% of ... the amount of silverfish consumed annually by Adélie penguins in this region. This result was ... ) analysis was used to look for alternative indirect pathways through the food-web by which changes to ...
Meeting Document : WG-EMM-15/53 : Auteur(s): M.H. Pinkerton, P. Lyver, D. Stevens, J. Forman, R. Eisert and S. Mormede (New Zealand).
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Development of a five-year work plan for the CCAMLR Scientific Committee
Committee should be developed for consideration by the Scientific Committee in 2017 (SC-CAMLR-XXXV ... , paragraphs 13.8 to 13.20). It was agreed that the work should be led by the Chair of the Scientific Committee ... consideration by each working group prior to submission to the Scientific Committee. This document represents ... the ecosystem by CCAMLR fisheries – Vertebrate by-catch and VME in CCAMLR fisheries Spatial management ...
Meeting Document : WG-EMM-17/02 : Auteur(s): M. Belchier (Chair of SC-CAMLR)
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Proposal for a winter longline survey of Antarctic toothfish in the northern region of Subareas 88.1 and 88.2
transport mechanism for subsequent advection patterns, all of which could be impacted by climate change ... patterns may be influenced by changes in sea ice or circulation patterns that affect observed recruitment ... further east and north of the CCAMLR Convention Area, which is bounded by latitude 60°S. Obtaining a ... key gaps in the knowledge of the life cycle of Antarctic toothfish in the Ross Sea by collecting ...
Meeting Document : WG-FSA-18/40 : Auteur(s): Delegation of New Zealand
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Glider-based estimates of Antarctic krill in Bransfield Strait, and the West shelf off Livingston Island, Antarctica
those from ship-based surveys historically conducted by the U. S. Antarctic Marine Living Resources ... broad-scale surveys conducted by the U.S. AMLR Program were 55 and 43 g m-2, for January and February ... the area of ship surveys to overlap with the area surveyed by the glider was 79 g m-2. Mean biomass ... density estimated from small-scale nearshore surveys conducted by the U.S. AMLR Program from 2005 to 2007 ...
Meeting Document : WG-EMM-2019/13 : Auteur(s): C. Reiss, A. Cossio, G. Cutter, J. Walsh and G. Watters
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THE DIET OF THE ANTARCTIC TOOTHFISH IN THE ROSS SEA
Abstract: This brief review documents the species composition of prey consumed by the Antarctic ... by both frequency of occurrence and dry weight. P. antarcticum is 71% by occurrence and 89% by weight ...
Meeting Document : WG-EMM-09/16 : Auteur(s): J.T. Eastman and A.L. DeVries (USA)
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Warming effects in the Western Antarctic Peninsula Ecosystem: the role of population dynamic models for explaining and predicting penguin trends
Abstract: The Western Antarctica Peninsula and Scotia Sea ecosystems appear to be driven by ... influenced by the inter-annual variability in the sea-ice extent and krill biomass. In this paper we ... . Chinstrap penguins were only influenced by krill abundance. The contrasting population trends of Adelié and ... Gentoo penguins appear to be better explained by the “sea-ice hypothesis”. We think that proper ...
Meeting Document : WG-EMM-12/18 : Auteur(s): M. Lima and S.A. Estay (Chile)
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Antarctic's pelagic ecosystem: how environmental change will affect Salpidae population structure
crustacean has been recorded, followed by an increase in the population of the gelatinous zooplankter Salpa ... this species’ development. The central part of the Drake Passage was characterized by a dominance of ... Island was the Salpidae population characterized by slowed, or even stopped reproduction. The immense ... reproduction efficiency observed in the Salpa thompsoni population was mostly induced by beneficial thermal ...
Meeting Document : WG-EMM-15/P08 : Auteur(s): A.W. Słomska, A.A. Panasiuk-Chodnicka, M.I. Żmijewska and M.K. Mańko (Poland)
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Age determination of Antarctic krill using size, fluorescence, and image analysis techniques
methods indicate 6 year classes for adult krill. Correspondence between the ages determined by the two ... techniques is generally within one year. The animals were also analyzed by a computerized image analysis ... constructed to relate the image analysis parameters to age approached 90% for the ages defined by length ...
Meeting Document : SC-CAMLR-VI/BG/48 : Auteur(s): M.S. Berman, A.L. McVey and G. Ettershank (USA)
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Estimating the biodiversity of the shelf and oceanic zone of the d’Urville Sea (East Antarctica) for ecoregionalisation using the CEAMARC (Collaborative East Antarctic Marine Census) CAML surveys
Vulnerable Marine Ecosystems have been identified by CCAMLR. Two large basins are found on the shelf in this ... studied by a number of countries in the CEAMARC surveys (Collaborative East Antarctic Marine Census) as ... hosted by France in Brest in late May 2011. It collates and synthesises available data from the CEAMARC ... ecosystem change in the region. The offshore zone is separated latitudinally by the presence of three fronts ...
Meeting Document : WS-MPA-11/07 : Auteur(s): P. Koubbi (France), G. Hosie, A. Constable, B. Raymond (Australia), M. Moteki (Japan), N. Améziane, R. Causse (France), V. Fuentes (Spain), K. Heerah, F. Penot, D. Vincent, A. Ancel, C.A. Bost, M. Eléaume (France), D. Lindsay (Japan), M. Lindsay (Australi