Résultats de la recherche

1. Using effective sample sizes to evaluate the efficiency of length samples collected by at-sea observers in the krill fishery in Subarea 48.1

   . Although analyses in the past have looked to the optimal design of the observer program, in terms of levels ... of coverage of vessels and hauls (e.g., Agnew et al., 2009; 2010), less attention have been focussed ... characterise how many krill are measured by observers, and for how many hauls. We then simulate the impact of ... combination (effective sample size). The median number of krill measured per haul was around 200 (range 0-652 ...

   Meeting Document : WG-SAM-16/39 : Auteur(s): N. Kelly, S. Kawaguchi, P. Ziegler and D. Welsford

2. Using predators and their prey to characterise the status of the marine ecosystem at South Georgia

   Abstract:  Increased awareness about the present status of marine systems, including those where ... fisheries target the prey of natural predators, has led to recommendations about how information on the ... status of marine predators might be used to inform ecosystem-based management approaches. In the ... Antarctic, sustained ecological research has generated long-term data on the performance of marine predators ...

   Meeting Document : WG-EMM-16/28 : Auteur(s): P. Trathan, S. Fielding, S. Hill, M. Belchier and J. Forcada

3. Metabarcoding analysis of zooplankton collected from Division 58.4.1 in 2014/15 using NGS platform

   biodiversity of zooplankton in the Indian Ocean of Antarctica, Division 58.4.1 in 2014/15. Compared with the ... previous method, next generation sequencing (NGS) using Miseq platform produces the large amount of ... large-sized (>1 mm) and small-sized (< 1mm) fractions, respectively. Based on the low numbers of ... only if additional barcode data of small-sized zooplankton or those with soft tissue are supplemented ...

   Meeting Document : WG-EMM-16/33 : Auteur(s): Delegation of the Republic of Korea

4. Integrated analysis of the by-catch data in the Ross Sea toothfish fishery

   Abstract:  The indices of exploratory toothfish fishery in the Ross Sea for the period of 2008 ... hooks) and normalized target catch ratio. There was evidence of distinct differences in the mean (and ...   the flag States,  should  be considered  as the primary cause of the observed variability in the ... target catch  ratio in the Ross Sea. The observed influence of the longline gear types  (Autoline ...

   Meeting Document : WG-FSA-16/13 Rev. 1 : Auteur(s): S. Kasatkina

5. Analysis of the longline fishery data in the Ross Sea (SSRUs 881B, C and G)

   Abstract:  The analysis of the toothfish fishery data in the northern part of the Ross Sea (SSRU ... -2015.  The variability of catch per haul (kg) and CPUE (kg/1000 hooks) depending on the hauling ... possible presence of  number of high CPUE and catches, which are outside the  upper limit of confidence ... interval of 99,7% CI. These CPUE and catch values are statistically unreliable and questionable high with ...

   Meeting Document : WG-FSA-16/14 : Auteur(s): S. Kasatkina

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

   Abstract:  The frequency distribution of oocytes diameter and relative fecundity (FR) of 4 ... counting were carried out using an image analyzer in sub-samples of ovaries at different stages of ... development, while the determination of RF was performed by a gravimetric method. Five were the main ... distinctive finding derived from this study: (i) in mature ovaries of all species immature oocytes or pre ...

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

7. Results of the first winter longline survey to the northern Ross Sea region to investigate toothfish reproductive life history

   Abstract:  The first winter longline survey of Antarctic toothfish in the northern Ross Sea region ... was successfully completed during June and July 2016. A total of 55 longlines sets were completed in ... the 4 strata, and 55.2 t of Antarctic toothfish and 3.4 t of Patagonian toothfish were caught ... northwest of stratum 1. Gonad staging and gonadosomatic indices suggest that males in spawning condition may ...

   Meeting Document : WG-FSA-16/37 : Auteur(s): D. Stevens, D. Di Blasi and S. Parker

8. Scientific contribution to the 2016 review of Conservation Measure 51-07: Part 1 – rationale, method and data for a risk assessment framework for distributing the krill trigger level

   critical times.  This paper provides the first part of a contribution to the required review of CM51-07 in ... .  The assessment and results are presented in a second paper.  Author(s):  A. Constable (on behalf of ... Conservation Measure 51-07, which is due to lapse at the end of the 2015/16 fishing season, and presented its ... discussions on this subject in paragraphs 2.201 to 2.244 of its WG report.  WG-EMM recommended that work be ...

   Meeting Document : WG-FSA-16/47 Rev. 1 : Auteur(s): A. Constable (on behalf of the e-group on CM 51-07 WG-EMM review)

9. An approach to feedback management (FBM) of the krill fishery based on routine acoustic data collection and intermittent land-based predator studies

   Abstract:  The conservation measure regarding (or stipulating) the interim distribution of trigger ... level in the fishery of Antarctic krill in Subareas 48.1 through 48.4 (CM 51-07) has continuously been ... . As the trigger level lacks any form of relationship with the actual stock condition this approach is ... reported continuously during the fishing season as measure of the available prey field. This information ...

   Meeting Document : SC-CAMLR-XXXVI/BG/20 : Auteur(s): Delegations of Norway, China and Chile

10. Joint research proposal for Dissostichus spp. in Subarea 88.3 by the Republic of Korea and New Zealand

    abundance of Antarctic toothfish in Subarea 88.3 and the Scientific Committee has requested members complete ... structure of Antarctic toothfish in this subarea – and their relationship to the rest of the Pacific Sector ... previously been 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 ...

    Meeting Document : WG-FSA-17/40 : Auteur(s): Delegations of the Republic of Korea and New Zealand

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