Search results
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Population trends and reproductive success at a frequently visited penguin colony on the western Antarctic Peninsula
with larger trends in this region, the Adélie penguin population decreased by 29% and the gentoo ... penguin population increased by 27% between the 2003/2004 and 2007/2008 seasons. Reproductive success ... Petermann Island. Whereas gentoo penguin reproductive success was lowest in colonies frequently visited by ... tourists, Adélie penguin colonies frequently visited by tourists had higher reproductive success than those ...
Meeting Document : WG-EMM-16/P07 : Author(s): H.J. Lynch, W.F. Fagan and R. Naveen
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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 : Author(s): A.W. Słomska, A.A. Panasiuk-Chodnicka, M.I. Żmijewska and M.K. Mańko (Poland)
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Update on the Top Predator Alliance project, 2013–14 season: Killer whales
affected by the removal of Antarctic toothfish (Dissostichus mawsoni; ‘toothfish’) in the Ross Sea region ... reliance on toothfish as a critical prey item, have limited our ability to (a) assess the risk posed by the ... fishery to TCKW and other marine mammals and (b) mitigate potential risk by implementation of management ... strategies such as closures to protect key foraging habitats. During late January 2014, feeding by TCKW was ...
Meeting Document : WG-EMM-14/52 : Author(s): R. Eisert, M.H. Pinkerton (New Zealand), L. Torres (USA), R.J.C. Currey, P.H. Ensor, E.N. Ovsyanikova, I.N. Visser (New Zealand) and O.T. Oftedal (USA)
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Infectious diseases of Antarctic penguins: current status and future threats
Abstract: The Antarctic Treaty area will become increasingly frequented by both researchers and ... tourists in the future. Three main areas are likely to be impacted by this increase in use and by ... affected by climate change and increased human activity. As long-lived seabirds, Adélie penguins are ... be used by CCAMLR to help inform management decisions. Author(s): W.W. Grimaldi, P.J. Seddon, P.O.B ...
Meeting Document : WG-EMM-14/53 : Author(s): W.W. Grimaldi, P.J. Seddon, P.O.B. Lyver, S. Nakagawa and D.M. Tompkins (New Zealand)
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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 : Author(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 : Author(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 : Author(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 : Author(s): C. Reiss, A. Cossio, G. Cutter, J. Walsh and G. Watters
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Stable isotope analysis of tissue samples to investigate trophic linkages of Antarctic toothfish (Dissostichus mawsoni) in the Ross and Amundsen Sea regions
were sampled by scientific observers on New Zealand vessels between 2005/06 and 2013/14. More than 100 ... samples each of four by-catch species (grenadiers, icefish, moray cods and deep-sea cod) were also ... considerable variability in δ 15 N and δ 13 C of toothfish that were not explained by fish length, sex ... substantially higher than in the Ross Sea region (medians differed by 1.4‰). This result implies that most of ...
Meeting Document : WG-EMM-14/50 : Author(s): M.H. Pinkerton, S.J Bury, J.C.S. Brown, J. Forman and A. Kilimnik (New Zealand)
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Draft conservation measure for an East Antarctic Marine Protected Area
been under consideration by the Commission since 2012. This paper presents a revised conservation ... measure articulating changes, including feedback provided by members, which continue to improve the ... proposal. The paper provides greater clarity on the proposal by explaining how existing conservation ...
Meeting Document : CCAMLR-XXXVI/17 : Author(s): Delegations of Australia, the European Union and its Member States