Résultats de la recherche
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Climate change and precautionary spatial protection: ice shelves
, particularly in the Antarctic Peninsula region. One of the most evident signs of climate change has been ice ... shelf collapse; overall, 87% of the Peninsula’s glaciers have retreated in recent decades. Ice shelf ... collapse will lead to new marine habitats and to biological colonisation. Colonisation of these habitats ... potentially removes physiological barriers that have previously led to the isolation of the Antarctic benthos ...
Meeting Document : WS-MPA-11/17 : Auteur(s): P.N. Trathan and S.M. Grant (UK)
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Climate change and precautionary spatial protection: seasonal sea ice
little changed by human activities, particularly by the impacts (either direct or indirect) of marine ... harvesting. If CCAMLR is to embrace the wider implications of climate change in the context of ecosystem ... change, both in the presence of and absence of harvesting. We therefore recommend that locations ... currently covered by seasonal sea ice (as of 2011) could be considered for creation as restricted use Marine ...
Meeting Document : WS-MPA-11/18 : Auteur(s): P.N. Trathan and S.M. Grant (UK)
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JAPANESE SCIENTIFIC OBSERVER ACTIVITIES FOR KRILL FISHERY IN CCAMLR CONVENTION AREA FROM 2003/04 TO 2007/08 FISHING SEASONS
Abstract: This document introduces the recent activities and outcome of Japanese scientific ... grounds of the Japanese fishery were the Subareas 48.1, 48.2, and 48.3. Recent observation effort was ... are analyzed through a cooperative scientific network on Antarctic ecosystem. Biological analysis of ... the incidentally caught species yielded guidelines for sampling and species identification of larval ...
Meeting Document : WG-EMM-09/19 : Auteur(s): M. Kiyota and T. Iida (Japan)
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Risk maps for Antarctic krill under projected Southern Ocean acidification
Abstract: The embryonic development of Antarctic krill (Euphausia superba) is sensitive to ... . Exposure to elevated CO 2 during the first 3 days of embryonic development significantly retards subsequent ... development even if the embryos are transferred to seawater with current levels of CO 2. Krill embryos appear ... Southern Ocean are predicted by models to rise to above 1500 μatm in some parts of krill’s depth range by ...
Meeting Document : WG-EMM-14/P06 : Auteur(s): S. Kawaguchi, A. Ishida, R. King, B. Raymond, N. Waller, A. Constable, S. Nicol, M. Wakit and A. Ishimatsu
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Revised joint research proposal for Dissostichus spp. in Subarea 88.3 by Korea and New Zealand
released on the slope, whilst also prospecting two of the northern seamount complexes and two boxes on the ... southern shelf, where little or no fishing has occurred. The main objective of the proposal is to determine ... the abundance of Antarctic toothfish in Subarea 88.3. Secondary objectives are to improve ... understanding of stock structure of toothfish in this area, to carry out calibration trials between the two ...
Meeting Document : WG-FSA-18/42 : Auteur(s): Delegations of the Republic of Korea and New Zealand
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Antarctic Climate Change and the Environment – 2019 Update
Abstract: This update by SCAR on recent advances in our understanding of climate change across ... , published by SCAR in 2009 (Turner et al. 2009), with an update of the key points in 2013 (Turner et al. 2014 ... ). At the request of the ATCM, SCAR agreed to provide regular updates on the original report (e.g. ATCM ... /physical-sciences/acce), which provides annual updates to the ATCM. The remit of the ACCE group is to keep ...
Meeting Document : SC-CAMLR-38/BG/17 : Auteur(s): Submitted by SCAR
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Aligning toothfish fishery status with the CCAMLR regulatory framework
Convention Area is intended to be guided by CCAMLR’s regulatory framework. However, the status of toothfish ... with the regulatory framework. This can be accomplished through developing and adopting a suite of ... fishery status based on their stage of development. Here, specific examples of toothfish fisheries with a ... status of closed and exploratory as set out in conservation measures, and that of the regulatory ...
Meeting Document : WG-FSA-2019/66 : Auteur(s): C.D. Jones
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PROPOSITION DE CAMPAGNE DE RECHERCHE FINANCEE PAR LA CCAMLR VISANT A SURVEILLER L'ABONDANCE DES PRE-RECRUES DE LEGINE ANTARCTIQUE DANS LE SECTEUR SUD DE LA MER DE ROSS
areas on the distribution, abundance and demography of Antarctic toothfish (D. mawsoni) has led to an ... estimate of the fisheries potential yield. However, one source of ongoing uncertainty in the stock ... that a time series of recruitments from a well designed longline survey could be a useful input into a ... establish the feasibility of developing a time series of longline surveys to monitor pre-recruit (<100 cm ...
Meeting Document : SC-CAMLR-XXX/07 : Auteur(s): Delegation of New Zealand
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Assessment models for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea for the years 1997–98 to 2010–11
Abstract: We provide an update of the Bayesian sex and age structured population stock assessment ... reference model using the selected trips tag data gave a similar, but slightly higher estimate of initial ... biomass than the 2009 base case. Retrospective analysis suggests that this is partly as a result of the ... increased number of vessels in selected data set and partly as a result of the 2010 and 2011 observations ...
Meeting Document : WG-FSA-11/42 : Auteur(s): S. Mormede, A. Dunn and S.M. Hanchet (New Zealand)
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OPERATIONAL DIFFICULTIES IN IMPLEMENTING THE CCAMLR TAGGING PROTOCOL IN DIVISION 58.4.1 IN 2007/08
a high mortality rate of fish on these lines; only fish with a high chance of survival were tagged ... closed on 30 January 2008). • The vessel caught a total of 9.757 t of Dissostichus mawsoni in Division ... of 3 fish tagged per tonne of green weight caught required in Conservation Measure 41-11(2007). The ... tag fish in excess of the required rate when the opportunity arose: • in Division 58.4.3a the vessel ...
Meeting Document : WG-FSA-08/16 : Auteur(s): A.T. Lozano and O. Pin (Uruguay)