Résultats de la recherche

1. Modelling Southern Ocean krill population dynamics: biological processes generating fluctuations in the South Georgia ecosystem

   Abstract:  Variability is a key feature of the pelagic ecosystems of the Southern Ocean and an ... dynamics in the observed variation. Here, analyses of a model of krill population development and predator ... . The krill population model was combined with a size-based selection function and used to generate ... expected length-frequency distributions in the predator diet through a summer season. Comparison of the ...

   Meeting Document : WG-EMM-01/53 : Auteur(s): E. Murphy and K. Reid (United Kingdom)

2. Modelling the dynamics of krill populations in the Antarctic Peninsula region

   population dynamics of krill and estimate the expected mortality rates. A number of models of the population ... the bulk density estimates and uses a non-linear regression method to estimate the mortality rate. The ... second method develops a fully age-structured population model and uses only the recruitment data to ... develop a model of the long-term dynamics. Data on the recruitment of the first and second age groups were ...

   Meeting Document : WG-EMM-99/56 : Auteur(s): E.J. Murphy (United Kingdom), A. Constable (Australia) and D. Agnew (United Kingdom)

3. Monitoring results of marine debris at Cape Shirreff, Livingston Island during the 1995/96 Antarctic season

   Shirreff, Livingston Island, during the Antarctic season 1995/96 is given. During the present survey a ... total of 4 251 articles with a total weight of 65.8 kg were obtained. As occurred in previous seasons ... , the plastic was the principal item (4 015 pieces) with a 94.45%; followed by glass (147 pieces), 3.46 ... %; metal (77 pieces), 1.81%; and paper (12 pieces), with a 0.28% From the plastic item, those used in ...

   Meeting Document : CCAMLR-XV/BG/27 : Auteur(s): Delegation of Chile

4. Establishing time-limited Special Areas for Scientific Study in newly exposed marine areas following ice shelf retreat or collapse in Subarea 48.1, Subarea 48.5 and Subarea 88.3 – Clarifications and options to further develop the 2015 proposal

   Abstract:  In 2015 the European Union proposed a draft Conservation Measure (CM) with the aim of ... for Scientific Study in such areas, with a designated 10-year study period during which time there ... would be a moratorium on all fishing activities, except for scientific research fishing activities ... undertaken in accordance with Conservation Measure 24-01. This proposal was developed following a ...

   Meeting Document : WG-EMM-16/27 : Auteur(s): S. Grant and P. Trathan

5. Spawning pattern and type of fecundity in notothenioids collected around the Elephant and South Orkney Islands

   georgianus) was carried out, in females collected during a fishery research survey around the Elephant Island ... development, while the determination of RF was performed by a gravimetric method. Five were the main ... the less developed group showed a polymodal pattern in C. aceratus and N. rossi; (iii) in hydrated ... ovaries of P. georgianus a trimodal structure was visible, containing immature oocytes (<0.9 mm ...

   Meeting Document : WG-FSA-16/22 : Auteur(s): G. Plaza, P.M. Arana, F. Becker, A. Zavatteri and V.H. Castillo

6. Informing and seeking advice from WG-SAM-18 about the revisions of the WSMPA proposal

   Abstract:  Following the submission of a first draft Conservation Measure for establishing a MPA ... with a view for a revised CM proposal to be submitted by the EU to CCAMLR 2018. This document informs ... ; Adjustment of the habitat of adult Antarctic toothfish in statistical areas 48.6 and 48.5 as a result of ... alia, by taking into account the outcome of the CCAMLR Workshop for the Development of a D. mawsoni ...

   Meeting Document : WG-SAM-18/16 : Auteur(s): S. Hain, K. Teschke, H. Pehlke and T. Brey

7. What’s the catch? Profiling the risks and costs associated with marine protected areas and displaced fishing in the Scotia Sea

   Abstract:  A principal concern with implementing marine protected areas (MPAs) is the displacement ... actively being discussed for achieving a range of protection and sustainable use objectives. Here, we ... . We employed both a static assessment (based on the design of each MPA scenario and the distributions ... of krill fishing and krill-dependent predators) and a dynamic risk assessment (based on a minimally ...

   Meeting Document : WS-SM-18/P03 : Auteur(s): E.S. Klein and G.M. Watters

8. Consumption estimates for male Antarctic fur seals at the South Orkney Islands during the post mating migration

   their biomass is orders of magnitude less than those of penguins. As a result the estimates of fur seal ... South Georgia. Using a combination of published and BAS data we highlight the potential importance of ... this connectivity. Our estimates suggest that the influx of fur seal males from South Georgia has a ... significant impact on the marine environment around the South Orkney Islands with a potential total krill ...

   Meeting Document : WG-EMM-18/10 : Auteur(s): I. Staniland and S. Hill

9. Marine Ecosystem Assessment for the Southern Ocean (MEASO)

   Abstract:  A first Marine Ecosystem Assessment for the Southern Ocean (MEASO) is under development ... . MEASO aims to provide a forward-looking assessment of what trends in Southern Ocean ecosystems are ... . The aim is to have a quantitative assessment that enables managers to achieve consensus in adapting ... develop a work plan.  Since the conference, summaries of information available for a MEASO have been ...

   Meeting Document : SC-CAMLR-XXXVII/BG/22 : Auteur(s): A. Constable, J. Melbourne-Thomas, R. Trebilco and M. Brasier

10. Marine pollutants and fishing gear associated with seabirds at sub Antarctic Marion Island, 1996–1998: trends in relation to longline fishing activity

    period May 1996 to April 1998 are reported. Standardised searches and incidental finds show a large ... increase between the 1996/97 and the 1997/98 field seasons. Fishing gear increased at a rate ten times ... at Marion Island, between 1992 and 1996. Three seabirds (a Southern Giant Petrel, a Northern Giant ... Petrel, and a Subantarctic Skua) were found entangled in fishing gear, while five seabird carcasses ...

    Meeting Document : CCAMLR-XVII/BG/26 : Auteur(s): Delegation of South Africa

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