Résultats de la recherche
-
Competition-mediated prey availability drives Adélie penguin (Pygocelis adeliae) chick size, mass and condition at colonies of differing size in the southern Ross Sea
interactions between them, is a key component in understanding the factors driving changes in animal ... foraging. In addition, we show that in some cases, increased intraspecific competition may be a more ... food webs may affect changes in Adélie penguin populations in the Ross Sea and elsewhere. Author(s ... , mass and condition at colonies of differing size in the southern Ross Sea Approval: Approved ...
Meeting Document : WG-EMM-13/31 : Auteur(s): A.L. Whitehead (Australia), P. O’B. Lyver (New Zealand), G. Ballard (USA), K. Barton, B.J. Karl (New Zealand), D.G. Ainley, K. Dugger, S. Jennings (USA), A. Lescroël (France) and P.R. Wilson (New Zealand)
-
Do krill fisheries compete with macaroni penguins? Spatial overlap in prey consumption and krill catches during winter
, the macaroni penguin, and the krill fishery by examining the spatial overlap in prey consumption and ... and the krill fishery can occur. We tracked adult macaroni penguins from a colony in South Georgia ... far less than that among the various other species of krill predators that occur in the Scotia Sea ... . Our method will allow quantification of changes in competition between macaroni penguins and krill ...
Meeting Document : WG-EMM-14/02 : Auteur(s): N. Ratcliffe, S.L. Hill, I.J. Staniland, R. Brown, S. Adlard, C. Horswill and P.N. Trathan (United Kingdom)
-
The International Code for Ships Operating in Polar Waters: Step 2 addressing fishing vessels
adoption of a Polar Code for shipping in polar waters, and sets out the initial steps for a second phase on ... identifies the relevance for fishing vessels of various safety matters addressed in the Polar Code, on the ... basis of recent incidents in the Southern Ocean. Finally, it proposes measures on ice strengthening of ... fishing vessels and training of fishing vessel crews, which should be introduced by CCAMLR in the interim ...
Meeting Document : CCAMLR-XXXIV/BG/24 : Auteur(s): Submitted by ASOC
-
Diagnostic plots of stock assessment models for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea region for the years 1997–98 to 2014–15
Abstract: We provide extensive diagnostic plots for models R1 and R2 for Antarctic toothfish in ... their main diagnostics are described in Mormede et al. (2015). The CASAL files for models R1 and R2 were ... provided to the CCAMLR Secretariat as a zip file. In this paper we present the results for first model R1 ... in Mormede et al (2015) including process error weightings and the MPD objective function components ...
Meeting Document : WG-FSA-15/39 : Auteur(s): S. Mormede, A. Dunn and S.M. Hanchet (New Zealand)
-
Joint research proposal for the Dissostichus spp. exploratory fishery in East Antarctica (Divisions 58.4.1 and 58.4.2) by Australia, France, Japan, Republic of Korea and Spain
Abstract: Exploratory fishing for toothfish (Dissostichus spp.) in East Antarctica (Divisions ... 58.4.1 and 58.4.2) began in 2003. Robust stock assessments and catch limits according to CCAMLR decision ... rules remain to be determined for these Divisions. Multiple research plans are currently in place by ... plan to be presented by all proponents of research in Divisions 58.4.1 and 58.4.2 to WG-FSA-16 (WG-SAM ...
Meeting Document : WG-FSA-16/29 : Auteur(s): Delegations of Australia, France, Japan, Republic of Korea and Spain
-
Fishing for structure; can we describe normal patterns in toothfish fishing operations using catch and effort data?
Abstract: We describe the typical steps involved in demersal longline fishing operations for ... toothfish in CCAMLR fisheries and link those steps to the variables recorded as part of the CCAMLR catch and ... information using other associated vessel records. Other unusual values, although potentially in error, are ... and their use in identifying erroneous data. The analyses show that many of the useful metrics that ...
Meeting Document : WG-FSA-16/36 : Auteur(s): J.M. Fenaughty and K. Large
-
Revised progress report for the fourth year of the research fishery for Dissostichus spp. in Subarea 48.6 being jointly undertaken by Japan and South Africa
Abstract: A multi-year research plan as outlined in CM 41-04 (2012, 2013, 2014) was initiated in ... in the research project in each of the three fishing seasons and the progress achieved during the ... Title: Revised progress report for the fourth year of the research fishery for Dissostichus spp. in ...
Meeting Document : WG-FSA-16/56 : Auteur(s): S. Somhlaba, R. Leslie, K. Taki, T. Ichii and T. Namba
-
Metabarcoding analysis of the stomach contents of the Antarctic toothfish (Dissostichus mawsoni) collected in the Antarctic Ocean
units [OTUs]) were obtained from 163 individuals in subarea 58.4, and 75,961 contigs (105 OTUs) from 164 ... fish in subarea 88.3. At 98 % sequence identity, species names were assigned to most OTUs in this study ... in this study, which included 14 fish species and 5 mollusks. More than 90 % of contigs belonged to ... additional 17 representative haplotypes in this study. Comparison with three previous morphological studies ...
Meeting Document : WG-FSA-17/P03 : Auteur(s): T.-H. Yoon, H.-E. Kang, S. R. Lee, J.-B. Lee, G. W. Baeck, H. Park and H.-W. Kim
-
Diagnostic plots of stock assessment models for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea region to 2016/17
toothfish in the Ross Sea as recommended by WG-SAM-15 (2015). The stock assessment rationale and models as ... well as their main diagnostics are described in Mormede (2017). The CASAL files for the assessment ... models were provided to the CCAMLR Secretariat as a zip file. In this paper we present the results for ... . Key tables are given in Mormede et al. (2017) including process error weightings and the MPD objective ...
Meeting Document : WG-FSA-17/38 : Auteur(s): S. Mormede
-
Report on Dissostichus mawsoni exploratory fishery research in East Antarctica (Divisions 58.4.1 and 58.4.2) between the 2011/12 and 2017/18 fishing seasons
the toothfish exploratory fishery in Divisions 58.4.1 and 58.4.2 between 2011/12 and 2017/18. Table 1 ... provides a summary of responses to the recommendations with references to the associated outputs in this ... paper or the new research plan (WG-FSA-18/59). In particular, this paper presents: Tag-overlap ... statistics at the scale of the research block (Figure 1) and the distribution of tags recaptured in research ...
Meeting Document : WG-FSA-18/58 Rev. 1 : Auteur(s): P. Yates and P. Ziegler