Résultats de la recherche

1. Uncertainty in green weight estimates from Norwegian krill fishing vessels

   an issue raised repeatedly within CCAMLR for a number of years, resulting in a modification to the C1 ... krill fishery for Euphausia superba in the Antarctic. These vessels have in recent years contributed to ... form implemented for the fleet in 2012. There are at present three Norwegian vessels operating in the ... therefore be important contributions to an estimate of total uncertainty in catch weight. Here, we present ...

   Meeting Document : WG-EMM-13/41 : Auteur(s): G. Skaret and T. Knutsen (Norway)

2. The sensitivity of multiple output statistics to input parameters in a krill–predator–fishery ecosystem dynamics model

   Paper Title:  The sensitivity of multiple output statistics to input parameters in a krill ... strategic frameworks for assessing uncertainty in ecosystem dynamics models. Such models have been used ... within CCAMLR to evaluate options for managing the Antarctic krill fishery in the Scotia Sea and southern ... plausible alternative hypotheses in data-poor situations. Apparent sensitivity is a function of both input ... nominally beginning in 2007 and par- titioned into 20 years of fishing, using a can- didate catch allocation ... shorter than a year) 2 There are, in fact, 29 arguments for the main function. Eleven of these are ... season (1 = summer), and the notation 1970 indicates the sum of values across the two seasons in a year ... , but more specific than, that of Watters et al. (2013), who assumed that overall krill density in ...

   Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 97–118 : Auteur(s): Hill, S.L. and J. Matthews

3. Towards an initial operational management procedure for the krill fishery in Subareas 48.1, 48.2 and 48.3

   , this increase may be suspended or reversed in any year depending on how many of the previous three year ... reductions may prove necessary during the 20 year period considered. Simulation tests, including one ... Article II is proposed: the primary objective is to prevent the expected lowest biomass of krill over a 20 ... Abstract:  An operational management procedure for krill in sub-Areas 48.1 + 48.2 + 4 48.3 ...

   Meeting Document : SC-CAMLR-VIII/BG/17 : Auteur(s): Delegation of South Africa

4. Australia: Relevant references for the Patagonian toothfish (Dissostichus eleginoides) stock assessment in Division 58.5.2

   ., Welsford D., Ziegler P., McIvor J., Farmer B. and E. Woodcock (2018) Spatio-temporal dynamics in maturation ... (Dissostichus mawsoni) in the Ross Sea for the years 1997-98 to 2012-13. Document WG-FSA-13/51. CCAMLR Hobart ... (Dissostichus mawsoni) in the Ross Sea for the years 1997-98 to 2014-15. Document WG-FSA-15/38. CCAMLR Hobart ... toothfish (Dissostichus eleginoides) stock assessment in Division 58.5.2 Agnew D., Moir Clark J., McCarthy ...

   Document : Site Section: Meetings

5. Entanglement of Antarctic fur seals (Arctocephalus gazella) in man-made debris at Bird Island, South Georgia, during the 2002 winter and 2002/03 breeding season

   reported here. The overall number of entanglements showed a decrease from last year of 55% in winter and 67 ... years, most individuals observed entangled in debris were juveniles (88% of winter and 81% of summer ... %. Severe injuries accounted for 33% of entanglements over winter and 25% during the summer. As in previous ... observations), the reasons for this are discussed. Of the entanglements where the animal could be sexed, males ...

   Meeting Document : SC-CAMLR-XXII/BG/11 : Auteur(s): Delegation of the United Kingdom

6. Fishery Report 2017: Exploratory fishery for Dissostichus eleginoides in Division 58.4.3a

   Description / Abstract:  Fishery Report 2017: Exploratory fishery for Dissostichus eleginoides in ... ) in each year are provided. Note: length-frequency distributions are only presented for those years ... season is represented by the year in which that season ended, e.g. 2015 represents the 2014/15 CCAMLR ... . eleginoides caught in Division 58.4.3a ranged from 30 to 150 cm in length (Figure 1). A bimodal distribution ... tagged in each year. The number of fish recaptured by each vessel/year is provided in brackets. No ...

   Document : Site Section: Publications

7. Principles for evaluating data collection plans in data-poor exploratory fisheries

   developing robust assessments of status of Dissostichus spp. in exploratory fisheries. Each additional year ... in accordance with the principles set forth in Article II of the Convention. However, several times ... over the last five years the Scientific Committee has noted with concern the lack of progress in ... Commissions’ goals for new, exploratory and closed fisheries as well as satisfying the objectives in Article ...

   Meeting Document : WG-SAM-11/08 : Auteur(s): P.E. Ziegler, D.C. Welsford and A.J. Constable (Australia)

8. Timing of clutch initiation in Pygoscelis penguins on the Antarctic Peninsula: towards an improved understanding of off-peak census correction factors

   Paper Title:  Timing of clutch initiation in Pygoscelis penguins on the Antarctic Peninsula ... . In this paper the authors present an analysis relating to both these challenges. Clutch initiation ... Petermann Island) in relation to potential drivers of clutch initiation (e.g. temperature, precipitation ... factor related to the timing of clutch initiation in all three of the penguin species examined (Adélie ... count that could be obtained in any given year are not strictly coin- cident, and the maximum census ... Palmer Station staff.) 3 Data downloaded from www.antarctica.ac.uk/met/gjma/ 4 In order to avoid ... year of measure- ment was included as a third covariate in the final model. Final model for ... each site (j) in each year (t) were modelled as being distributed around the actual clutch initiation ...

   Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 149–165 : Auteur(s): Lynch, H.J., W.F. Fagan, R. Naveen, S.G. Trivelpiece and W.Z. Trivelpiece

9. Entanglement of Antarctic fur seals (Arctocephalus gazella) in man-made debris at Bird Island, South Georgia, during the 2003 winter and 2003/04 breeding season

   summer observations). Of the entanglements where the animal could be sexed, males made up the majority in ... previous years, most individuals observed entangled in debris were juveniles (79% of winter and 55% of ... Abstract:  In the fourteenth consecutive winter of the survey at Bird Island, South Georgia, the ... number of entanglements increased by 56% compared to last year and the majority of injuries were ...

   Meeting Document : SC-CAMLR-XXIII/BG/14 : Auteur(s): Delegation of the United Kingdom

10. Status of the krill stock around Elephant Island in 1991/92 and 1992/93

    Paper Title:  Status of the krill stock around Elephant Island in 1991/92 and 1992/93 Abstract ... / Description:  Krill stock composition and distribution patterns in the vicinity of Elephant Island during the ... appears to be a recurring and predictable aspect of the krill stocks in the Antarctic Peninsula region ... . The length frequency distributions and maturity stage composition reflected relatively good year class ... -south transects between 60" and 62"s and 53" and 57"30'W ('Elephant Island box'). In 1993 additional ... differences in the year class success and recruitment of the previous year's spawn. Substantial proportions ... of juveniles and krill lengths <30 mm in 1992 (Figures 4 and 7) resulted from successful spawning ... and larval survival in 1991 and a relatively good 1990/91 year class. The paucity of juveniles and ...

    Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 7–33 : Auteur(s): Loeb, V. and V. Siegel

Pages