Résultats de la recherche

1. Variation or reproductive performance of seabirds and seals at South Georgia, 1976–1986 and its implication for Southern Ocean monitoring studies

   Abstract:  Aspects of the reproductive performance of Black-browed, Grey-headed and Wandering ... Orkney Islands) are summarised and reviewed. Breeding success of the Wandering Albatross, which breeds in ... proportion of their diet, have shown major fluctuations in some or all of: breeding population size, breeding ... success, foraging trip duration and offspring growth rate. 1977-78 and 1983-84 were summers of ...

   Meeting Document : WG-CEMP-87/13 : Auteur(s): J.P. Croxall, T.S. McCann, P.A. Prince and P. Rothery (United Kingdom)

2. Trophic interactions and population trends of killer whales (Orcinus orca) in the southern Ross Sea

   Abstract:  Foraging events and related trends in numbers of Type-B and-C killer whales (Orcinus ... orca) are reported for the vicinity of Ross Island, Ross Sea, Antarctica, between 2002 and 2010 ... . Updating an earlier report, the frequency of sightings and the number of individuals per sighting of Ross ... coincident with a decrease in the number and size of an important prey: Antarctic toothfish (Dissostichus ...

   Meeting Document : WG-FSA-12/P03 : Auteur(s): D.G. Ainley and G. Ballard

3. Migrations of Antarctic fish Pseudochaenichthys georgianus Norman, 1939 in the Scotia Sea

   Abstract:  The material obtained between 1986 and 1991 has allowed to study the pattern of ... geographical and depth distribution of Pseudochaenichthys georgianus in the area of Scotia Arc Islands and on ... shelf of South Georgia Island. In the Antarctic colder waters in the Palmer Archipelago there were ... distribution of krill, which flow further to North and East with geostrophic currents. Following after them ...

   Meeting Document : WG-FSA-12/68 Rev. 1 : Auteur(s): R. Traczyk (Poland)

4. Modern data on parasitofauna of Dissostichus mawsoni and by-catch species from logline fishing in Antarctica

   Abstract:  Parasites are one of an integral part of any ecosystem and unfortunately knowledge ... of Antarctic circumpolar ecosystem plays its role on existence of endemic forms of animals, including ... parasites, which sometimes have unpredictably large sizes and distribution. The best example of it ... – Lophoura szidati. In this work we conclude the results of preliminary analysis of collected parasites of ...

   Meeting Document : WG-FSA-12/P09 : Auteur(s): I.I. Gordeev and S.G. Sokolov

5. Report of vulnerable marine ecosystems in South Georgia Islands (CCAMLR Subarea 48.3) through research dredge sampling

   Abstract:  In this contribution we report the presence of 6 vulnerable marine ecosystems (VME ... Institute of Fishery Research and Development (INIDEP) and the Argentine Antarctic Institute (IAA) during ... April-May of 2013. VMEs were established from the finding of high densities of indicator taxa through a ... the biomass and were primarily responsible of reaching the proposed threshold of 10kg/1200 m 2 but ...

   Meeting Document : WG-FSA-13/58 : Auteur(s): E. Gaitán, L. Schejter, D. Giberto, M. Escolar and C. Bremec (Argentina)

6. Reports on biological information of toothfish with special reference to bycatch, depredation and spawning dynamics in Division 58.4.4 a & b by Shinsei maru No. 3 during 2008–14 seasons

   weight and number, accounting for 93% and 76% of the total catch, respectively, among total of 16 species ... method and grenadier bycatch method by Gasco et al. (2014) using two size levels of unit cell, and ... SSRU 58.4.4bC. The depredation rate in weight of whales toward toothfish was estimated to be only 3.8 ... -4.8 % in SSRU 58.4.4bC during 2008-12 using the CPUE method, while the presence/absence of whales was ...

   Meeting Document : WG-FSA-15/21 : Auteur(s): K. Taki and T. Ichii (Japan)

7. Revised assessment models for Patagonian toothfish in research block 58.4.3a_1 of Division 58.4.3a, Elan Bank for the years 2005–2014

   Abstract:  We revised sensitivity runs of age-structured and two fisheries (≥1 300 m and < 1 ... 300 m) CASAL models for stock status assessments of Dissostichus eleginoides in the research block ... 58.4.3a_1 following the recommendations of the last WG-SAM meeting. Total of four runs were carried out ... released in 2012 for ELAN_len, ELAN_age and ELAN_lenOB models reflected a large number of recaptures of the ...

   Meeting Document : WG-FSA-15/22 : Auteur(s): K. Taki (Japan), S. Mormede (New Zealand) and T. Ichii (Japan)

8. Ecoregionalisation of the Kerguelen and Crozet islands oceanic zone. Part I: Introduction and Kerguelen oceanic zone

   Antarctiques Françaises. The workshop listed general conservation objectives to evaluate boundaries of ... habitats, life history traits,…). This report is a summary of the conclusions based on expert knowledge. It ... is divided into three parts:-          A summary of the ecological characteristics of the Kerguelen ... oceanic zone;-          The ecoregionalisation of the pelagic realm, the benthic realm and the top ...

   Meeting Document : WG-EMM-16/43 : Auteur(s): P. Koubbi, C. Guinet, N. Alloncle, N. Ameziane, C.S. Azam, A. Baudena, C.A. Bost, R. Causse, C. Chazeau, G. Coste,C. Cotté, F. D'Ovidio, K. Delord, G. Duhamel, A. Forget, N. Gasco, M. Hautecœur, P. Lehodey, C. Lo Monaco, C. Marteau, A. Martin, C. Mignard, P. Pruvost, T. Saucède, R. Sinegre, T. Thellier, A.G. Verdier and H. Weimerskirch

9. Evaluation of some processing techniques applied to acoustic recordings from two krill fishing vessels

   demonstrated through a CCAMLR proof of concept, but processing is in most cases essential before any use of the ... . Here we show examples of processing with a prerequisite that abundance and distribution of krill are ... our main interest, and that data of interest include both those collected during fishing operations ... and during surveying. We have worked with datasets covering most of the fishing season 2015/2016, one ...

   Meeting Document : SG-ASAM-17/03 : Auteur(s): X. Wang, G. Skaret and O.R. Godø

10. New possibilities of krill-dependent indicator species monitoring – UAV survey in Subarea 48.1

    study distribution and population size of three Pygoscelis penguin species on King George Island ... performed. The total flight time of the missions was 40 hours and 56 minutes. Flights covered the area of ... resolution GSD (ground sample distance) of 3-6 cm. Obtained images were used for the estimation of population ... size. Precision estimation of individuals’ count was based on the photo interpretation of high ...

    Meeting Document : WG-EMM-17/03 : Auteur(s): M. Korczak-Abshire, A. Zmarz, M. Rodzewicz, R. Storvold, M. Kycko, I. Karsznia, A. Kidawa and K.J. Chwedorzewska

Pages