Résultats de la recherche

1. Fishery Report: Dissostichus eleginoides Heard Island (Division 58.5.2)

   catch older fish (>20 years) than trawl gear which has high selectivity for 6-year-old fish ... . 2002 2004 2006 2008 2010 0 5 10 15 20 25 Year of Survey A bu nd an ce (m il) 2002 2004 2006 ... 2008 2010 0 10 00 0 20 00 0 30 00 0 40 00 0 Year of Survey B io m as s (t) TOP 58.5.2 ... , effectively declining to zero for fish older than 20 years. The length-frequency distribution for the ...

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2. Fishery Report 2013: Champsocephalus gunnari Heard Island (Division 58.5.2)

   apportioned across the 1+, 2+ and 3+ year classes according to their length density and projections for two ... Dec Increments in year 365 Years to project stock in simulation 2 Reasonable upper bound for ... % of the level that would occur in the absence of fishing within the two years following an abundance ... projected separately for two years. Fishery catches of 400 tonnes after the survey were also included in ...

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3. Fishery Report 2014: Champsocephalus gunnari Heard Island (Division 58.5.2)

   , allowing 75% escapement of biomass over two years. Future research requirements 20. There were no ... within the two years following an abundance biomass estimate provided by a survey. A4. To achieve ... fishery 1. An Australian licensed trawl fishery in Division 58.5.2 for mackerel icefish ... 1123 * 30 tonne research and by-catch limit applied. Figure 1: Length frequencies for ...

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4. WG-FSA-06/5

   fishery fishermen use two modifications of a longliner of the "spanish type": for fishing on the shelf ... and wheel (Figs. 13 and 14); one - on gaff; two - collect an additional rope with hooking snoods in a ... - inclined metal tray for throwing the cylindrical loads ("pedros") in the bunker-store On a stern two ... to No. 20-24, and also an increase in weight of concrete loads from 3-4 to 10,5 kg. Besides, in the ...

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5. Fishery Report 2014: Dissostichus eleginoides Heard Island (Division 58.5.2)

   the model from returning an estimated fishable biomass for which the catch in any given year would ... 20% of the pre-exploitation median spawning biomass in any one year, for each year over a 35-year ... effort amongst strata was revised in 2003, with an identical survey design for the years 2001–2002 and ... assumed for these years with an identical selectivity function (Survey group 1). Survey abundance-at ...

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6. Fishery Report: Dissostichus eleginoides South Georgia (Subarea 48.3)

   20% of B0 in the respective sample of any one year, for each year in the 35-year projection period ... provide an appropriate mean and CV of year class strength for this purpose, which includes mostly below ... catches would increase by between 2% and 3.6% over the reported figures depending on the year, for the ... on the informative priors for the two catchability parameters, and the intrinsic rate of increase, r ...

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7. Fishery Report: Champsocephalus gunnari Heard Island (Division 58.5.2)

   Increments in year 365 Years to project stock in simulation 2 Reasonable upper bound for annual F 5.0 ... % of the level that would occur in the absence of fishing within the two years following an abundance ... 20. The Working Group recalled that the current strategy of spreading catch over two years, while ... meeting the escapement rule, was to provide for two years of spawning (SC-CAMLR-XVI, Annex 5). The ...

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8. Fishery Report: Champsocephalus gunnari Heard Island (Division 58.5.2)

   would occur in the absence of fishing within the two years following an abundance biomass estimate ... . Weighted Frequency (proportion of the catch) Le ng th (c m ) 10 20 30 40 50 1996/971997/981998 ... observed in the current year, no assessment has been conducted for the Shell Bank stock since the 2007/08 ... -mass ‘a’ 2.629E-10 kg/mm Length-to-mass ‘b’ 3.515 Standing stock 10. Similar to last year, an ...

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9. Fishery Report: Dissostichus eleginoides and Dissostichus mawsoni South Sandwich Islands (Subarea 48.4)

   assessment of the Northern Area after four experimental years. An extension of the experiment for a further ... Area of Subarea 48.4 for a further two years. 53. The Working Group agreed that the experiment in the ... estimate an annual yield of 28 tonnes of D. eleginoides for the subarea (SC-CAMLR-XII, Annex 5, paragraph ... B0 in the respective sample of any one year, for each year in the 35-year projection period. 33 ...

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10. Fishery Report: Champsocephalus gunnari South Georgia (Subarea 48.3)

    Frequency (proportion of the catch) Le ng th (c m ) 10 20 30 40 50 986/87987/88988/90989/90990 ... in the analysis for the first time. Ten strata were used (Figure 2; Table 2), with two depth strata ... 2007 and 63 in 2006), but two were excluded as they fell outside the depth range used for the ... assessment. 9. An estimate of the one-sided lower 95% CI of biomass was calculated for the assessment and ...

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