Résultats de la recherche
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An assessment of the mackerel icefish (Champsocephalus gunnari) off Heard Island
the Heard Plateau is 275 mm. The growth curve gives a mean length for fish aged one year less than ... years from the two abundant cohorts of 1 500 tonnes, comprising 900 tonnes in the first year and 600 ... respectively. The effects of a constant catch level (in tonnes) over a 20-year period were evaluated. The ... , which means that they are based on a constant catch over a 20-year period, and as such they can be ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 79–101 : Auteur(s): de la Mare, W.K., R. Williams and A.J. Constable
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e-sc-iv-a4.pdf
... among the younger fish, and especially, for Heincke’s method a strong year-class aged x, will cause the ... Fished) BGR 78–80 Yes Yes (X MSS, GEAR) 1 Species 2 Species Split year Month Subarea Gear ... (30–86) 1cm (6–51) 2cm (14–62) 2cm (12–80) 1cm (12–68) FRG 1cm (34–73) 1cm ... uncertainties. 7. Problems were also met in respect of both age and length data. Examination of age-length
application/pdf attached to:WG-FSA-85Meeting Report : WG-FSA-85
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Seabird interactions with longlining operations for Dissostichus eleginoides at the South Sandwich Islands and South Georgia
mortality was seen and only one bird was caught on a hook; nevertheless many species in these aggregations ... . Alternatively, other configurations of streamer lines might be easier to accommodate, e.g. two lines, one to ... Peninsula, islands of the Scotia Sea and Antarctic continent between 80°W and 20°W: their status and ... operations. No incidental mortality was seen and only one bird was caught on a hook; nevertheless many ... saving of $A4.9 million and 30 300 albatrosses annually. The Japanese tuna fishery is in the process ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 143–153 : Auteur(s): Ashford, J.R., J.P. Croxall, P.S. Rubilar and C.A. Moreno
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On the power to detect changes using the standard methods for monitoring parameters of predatory species
next year. Thus, each sample of birds is said to be "nested" within years when two or more years are ... ~--------------------------------------------~ 120 -t/l ... ::J 100 0 .s=. - :c I- 80 CJ Z W ...J a. 60 a: I I- 40 20 ... ) to compute the requisite sample sizes for detecting changes of 10%, 20% and 30% of the mean value ... sample sizes for detecting changes of 10%, 20% and 30% of the mean values are shown in Table 2. No ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 377–397 : Auteur(s): Boveng, P. and J.L. Bengtson
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WG-SAM-09
HEARD AND MCDONALD ISLANDS USING CATCH-AT-AGE DATA AND TWO YEARS OF SURVEY ABUNDANCE-AT-AGE DATA S.G ... SEASONALLY CORRECTING ANIMAL POPULATION ESTIMATES J. McKinlay, C. Southwell and R. Trebilco (Australia) WG ... DATA QUALITY METRICS FOR TAGGING DATA SELECTION D.A.J. Middleton and A. Dunn (New Zealand) WG-SAM-09/20 ... (s): Monday, 29 June 2009 to Friday, 3 July 2009 Submissions Due: Monday, 15 June 2009 Meeting ...
Meeting
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Acoustic estimates of krill density at South Georgia, 1981 to 1998
from year to year over that time, ranging from ≈ 2 to ≈ 150 g m-2 (fresh mass). The 1982, 1991 and ... years ,90' ,982 ,9i5 ,pB ,9+ ,9s6 $6' 40% ,989 ,99' ,992 ,9@ ,9qb ,9qb ,9q6 ,992 49% Year Figure 2 ... annual (i.e. 1996, 1997 and 1998) acoustic surveys at South Georgia within two defined 80 X 100 km ... by this criterion on average in one year out of every six or seven1. Survey timing, however, may ... from a normal population (i.e. between one year out of six and one year out of seven) fall below p - o ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 47–57 : Auteur(s): Brierley, A.S., J.L. Watkins, C. Goss, M.T. Wilkinson and I. Everson
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e-sc-xxvi-a8.pdf
... guidelines for EK60 calibration procedures within the next two years. Dr Jarvis is one of the co-chairs of ... (Cambridge, UK, 30 April to 2 May 2007) 556 CONTENTS Page INTRODUCTION ... ............................................................................. 557 REVIEW OF THE FINDINGS OF TWO PREVIOUS MEETINGS OF SG-ASAM ... 557 NEW INFORMATION ON ICEFISH ... SUBGROUP ON ACOUSTIC SURVEY AND ANALYSIS METHODS (Cambridge, UK, 30 April to 2 May 2007) INTRODUCTION
application/pdf attached to:SG-ASAM-07Meeting Report : SG-ASAM-07
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Estimating krill recruitment and its variability
rate for 1+ krill (the ratio of the number of krill aged one year to the number of krill aged one year ... for 2+ krill (the ratio of the number of two-year-old krill to the number aged two and above) from ... both putative one-year-old and two-year-old age classes. Five putative age classes (components) are ... with R(t) estimated for both putative one- and two-year-old age classes. above data, and four age ... number of krill aged one year to the number of krill aged one year and above) of 0.339 with a standard ... two-year-old krill to the number aged two and above) from nine surveys is 0.552 with a standard ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 55–69 : Auteur(s): de la Mare, W.K
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e-cc-ix-a8.pdf
... THE STANDING COMMITTEE ON OBSERVATION AND INSPECTION (SCOI) The Standing Committee met on 24 ... , especially with regard to an individual case of inspection, was one such issue, and requested that Agenda ... Committee by elaborating on any of the points raised by SCAR, nor would he have the benefit of hearing the ... should be restricted to the Commission Members. REPORTS OF INSPECTIONS CARRIED OUT IN 1989/90 5. The
application/pdf attached to:SCOI-90Meeting Report : SCOI-90
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e-sc-38-a4.pdf
... analyses (WG-FSA-2018 report, paragraphs 4.27, 4.29 and 4.30). 6.2 WG-SAM-2019/34 summarised two ... only one year of fishing reduced the size of the vessel effect, however, it remained the most ... , paragraph 3.122) had advised that this research program be conducted for one year as a trial and that ... one further year only, however, the research analysis and reporting would continue after the on-water
application/pdf attached to:WG-SAM-2019Meeting Report : WG-SAM-2019