Résultats de la recherche
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Revised CASAL model for D. eleginoides with updated biological parameters at Division 58.4.4b
to conduct an exploration of the impact of different scenarios of depredation and IUU in order to ... Abstract: In order to achieve the milestone “1.1 Update biological parameters”(SC-CAMLR-37 Report ... ogice) of Dissostichus eleginoides for Division 58.4.4b were updated based on the data gathered up to ... evaluate the uncertainties associated with these factors as achievements of milestones “1.2 Updated ...
Meeting Document : WG-SAM-2019/30 : Auteur(s): T. Okuda and F. Massiot-Granier
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Report on Argentine CCAMLR Subarea 48.3 survey: fish
Abstract: Information on biological aspects of the finfish catches obtained in the survey of BIP ... in the shelf of the South Georgias Islands. Total lengths ranged from 4 to 55 cm, 7 to 63 cm, 9 to 51 ... Dr. E L Holmberg, conducted around Shag Rocks and the South Georgias Islands in April-May 2013, is ... structure, in a relation 1:1 in all the species analyzed. Two length-weight relationships were estimated for ...
Meeting Document : WG-FSA-13/62 : Auteur(s): A. Zavatteri and A. Giussi (Argentina)
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ADÉLIE PENGUIN SURVIVAL: AGE STRUCTURE, TEMPORAL VARIABILITY AND ENVIRONMENTAL INFLUENCES
other factors in addition to the physical marine environment and outcomes of the previous breeding ... Abstract: The driving factors of survival, a key demographic process, have been particularly ... what environmental features they are most likely to respond to. Here we examine the influence of ... environmental fluctuations, broad climatic conditions and the success of the breeding season prior to winter on ...
Meeting Document : WG-EMM-11/P4 : Auteur(s): L. Emmerson and C. Southwell
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Semi-automated software to count and validate Adélie penguin colonies from aerial photographs
of nesting Adélie penguins (Pygoscelis adeliae), on aerial photographs of the Ross Sea sector of ... Antarctica. The software is written in MATLAB ®, is freely available and is deployed to users as a graphical ... , which is slow, and highly-dependent on the skill of the operator. The basis of the semi-automated ... select the breeding penguins within the colony. Interactive features are provided in the software that ...
Meeting Document : WG-EMM-14/54 : Auteur(s): S.J. McNeill, K.J. Barton and P.O’B. Lyver (New Zealand)
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Age-length key for Champsocephalus gunnari from Subarea 48.3, Dr Eduardo Holmberg survey, February/March 1994
on the readings of otoliths randomly collected during the R/V Holmberg survey in Feb/Mar 1994. Small ... weighted distribution of all the fish sampled in the Subarea 48.3 showed good correspondence between modes ... range of available results from previous surveys in the South Georgia region. Author(s): E. Barrera-Oro ... and, the mean lengths of age groups 1-2. Such correspondence was also obtained for age group 3 when ...
Meeting Document : WG-FSA-94/11 : Auteur(s): E. Barrera-Oro, E. Marschoff and R. Casaux (Argentina)
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Key considerations for planning a large-scale krill survey
) might also play a role in the future management of the krill fishery. Such surveys provide an indication ... important in the future management of the krill fishery. The design of the CCAMLR 2000 survey might be a ... Abstract: Article II of the Convention requires the Commission to maintain harvested populations ... management (FBM) approaches for the krill stock in subareas 48.1 to 48.4. These approaches include some which ...
Meeting Document : WG-EMM-15/27 : Auteur(s): S. Hill, J. Watkins (United Kingdom), O.R. Godø (Norway), S. Kawaguchi (Australia), D. Kinzey, C. Reiss (USA), V. Siegel (Germany), P. Trathan (United Kingdom) and G. Watters (USA)
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Mincing, mealing and batching: waste management strategies aimed at reducing seabird interactions with trawl vessels
seabirds. In contrast, mealing all waste had a marked effect on several of the bird groups. In particular ... observations on the second trial, the minced treatment suggested a reduction in the numbers of all albatross ... to a paste before it was discharged reduced the number of seabirds around the vessels. The first ... treatment (4) where waste was held and discharged in batches. The response to the experimental treatments ...
Meeting Document : WG-FSA-07/42 : Auteur(s): E. Abraham and J. Pierre (New Zealand)
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Adult male Antarctic fur seals: tourists, trouble makers or marine ecosystem sentinels?
considered in understanding the functional response of penguins and suggest that male AFS could be a useful ... through the partitioning of resource exploitation either temporally or spatially. Understanding the ... concern that any increase in catch levels should not result in long-lasting or irreparable damage to the ... , characterizing the competitive interactions between these species is key to disentangling the drivers of ...
Meeting Document : WG-EMM-2019/49 : Auteur(s): A. Lowther, C. Lydersen and K. Kovacs
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Admiralty Bay (South Shetland Islands) - long-term marine monitoring program
) marine monitoring program in the region of Admiralty Bay was started. Biological, chemical and geological ... Abstract: Dynamic climate changes have become noticeable in recent decades, especially in the ... the site of comprehensive environmental studies over the last 30 years and existing data sets provide ... the opportunity for long-term comparisons, and recognition of any ecosystem changes, and potential ...
Meeting Document : WG-EMM-15/47 : Auteur(s): A. Panasiuk-Chodnicka, M. Korczak-Abshire, M.I. Żmijewska, K. Chwedorzewska, E. Szymczak, D. Burska, D. Pryputniewicz-Flis and K. Łukawska-Matuszewska (Poland)
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Krill stock evaluation with data from commercial fishing vessels
‘Saga Sea’ in 2011 as example. A one-month subset of the acoustic data from February/March was processed ... . The use of such vessels as platforms for survey transects under scientific supervision has already ... board during normal fishing operations in a relatively easy and cheap manner using the Norwegian vessel ... within a time-frame of a week and linked to krill length data from the same period. The data from the ...
Meeting Document : WG-EMM-12/63 : Auteur(s): G. Skaret (Norway), J. Moir Clark (United Kingdom), O.R. Godø, R.J. Korneliussen, T. Knutsen, B.A. Krafft and S.A. Iversen