Search results
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A von Bertalanffy growth model for toothfish at Heard Island fitted to length-at-age data and compared to observed growth from mark–recapture studies
parameters. A young-age adjustment (less than 5 years old) to the VB model is also given in order to give ... obtained using IWLS-estimated parameters. A young-age adjustment (less than 5 years old) to the VB model ... Paper Title: A von Bertalanffy growth model for toothfish at Heard Island fitted to length-at-age ... data and compared to observed growth from mark–recapture studies Abstract / Description: Length-at-age ... than 20 years in age. This is due to the combined effect of natural and fi shing mor- tality ... for ages in the 8– 20 year range. This translated to larger predictions for the MLPLB-fi tted curve ... with those obtained using IWLS-estimated parameters. A young-age adjustment (less than 5 years old ... )|A) = μ(A, θ) = L∞ (1 – exp{–κ(A – t0)}) (2) and L(Pop) = μ(A, θ) + ε where L is length (mm), A is age (years ...
Science Journal Paper : CCAMLR Science, Volume 14 (CCAMLR Science, Volume 14) : 43–66 : Author(s): Candy, S.G., A.J. Constable, T. Lamb and R. Williams
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Temporal changes in sighting density indices of baleen whales in CCAMLR Subareas 48.1 and 48.2 based on three circumpolar sighting surveys
data in Subarea 48.1 corresponded to years 1982/83, 1989/90 and 1993/94+1999/00, respectively while ... in Subarea 48.1 corresponded to years 1982/83, 1989/90 and 1993/94+1999/00, respectively while ... that in Subarea 48.2 those corresponded to years 1981/82, 1986/87 and 1997/98, respectively. The density indices ... that in Subarea 48.2 those corresponded to years 1981/82, 1986/87 and 1997/98, respectively. The density indices ...
Meeting Document : WG-EMM-16/26 : Author(s): L.A. Pastene and T. Hakamada
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Report of an ad hoc working group to review the Ukraine proposal for a bottom trawl survey on Ob and Lena Banks
group to review the Ukraine proposal for a bottom trawl survey on Ob and Lena Banks Approval: Approved ... Report of an ad hoc working group to review the Ukraine proposal for a bottom trawl survey on Ob ...
Meeting Document : CCAMLR-XI/BG/21 : Author(s): Submitted by Dr K.-H. Kock, Chairman of the Ad Hoc
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Factors that may influence the accuracy of abundance estimates from CCAMLR tag-recapture programs for Dissostichus spp. and best practice for addressing bias
of growth can be remediated by estimating size- or age-based estimates of LPE parameters. Slowing ... the movement of toothfish and the spatial distribution of size and age classes (e.g. Dunn and Rassmussen ... of size- and age-based models for areas without assessments, such as the exploratory toothfish fisheries ... , Hobart, Australia: 17 pp. Candy, S.G. 2011b. Estimation of natural mortal- ity using catch-at-age ... spatially explicit modelling approaches is also an important next step for Dissostichus spp. assessments ... -recapture programs for Dissostichus spp. and best practice for addressing bias Abstract / Description: The ... Lincoln-Petersen equation, the simplest form of an abundance estimator using tag-recapture data, was used ... account for their effects in stock assessments for Dissostichus spp. are also summarised. In nearly all ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 63–72 : Author(s): Welsford, D.C. and P.E. Ziegler
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Methodology of data collection on net selectivity and accidental mortality of fish passing through the mesh of the codend
passing through the mesh of the codend Abstract / Description: This paper contains advice on determining ... of fish passing through the trawl codend. It contains proposals on standardising data collection ... Methodology of data collection on net selectivity and accidental mortality of fish passing through ... an experiment to determine the accidental mortality of fish passing through the trawl codend. It contains ... KPOMKaM K era HH~HeH rrnaTH. ITepe~Hhlhl H 3agHhlw KPOMKH STOH ~aCTH gnHHoH h2' paBHoH illHpHHe ... @ - OT 0 ~o 145 MM. HOMep ~yrra o 1 2 3 4 ,IJ;Hana30H 0-55 65-100 105-145 H3MepeHHR, MM 30-80 90 ... IIIBOB, nO~HnHH H ToneHaHTOB. Bcero H3MepReTcR 30 R~e:tl:: 10 B Ha~ane, 10 B cepe~HHe H 10 B KOH ... 6 16 26 7 17 27 8 18 28 9 19 29 10 20 30 - 114 - ___ .n, ____ _6~ _ '\_ h -y. a l cl ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 99-121 : Author(s): VNIRO (USSR)
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Increase in relative abundance of fjord Notothenia rossii in Potter Cover, South Shetland Islands, after the decrease associated with commercial fishing in the area
has continued in Potter Cove from 1991 to 1999, covering a continuous sampling period of sixteen years ... of relative abundance of this species and G. gibberifrons are well below those found in the early 80 ... years is the effect of the offshore commercial fishery in the area in the late 1970s ... in Potter Cove from 1991 to 1999, covering a continuous sampling period of sixteen years and in Harmony Cove ...
Meeting Document : WG-FSA-99/30 : Author(s): E.R. Barrera-Oro, E.R. Marschoff and R.J. Casaux (Argentina)
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Marine mammals and demersal longline fishery interactions in Crozet and Kerguelen Exclusive Economic Zones: an assessment of depredation levels
in the Crozet EEZ per fi shing sector and marine mammal species. 0% 10% 20% 30% 40% 50% 60% 70% 80% 90 ... (n = 552, range 1–20) and 4.1 ± 3.4 (n = 737, range 1–30) individuals respectively. Table 1: Number ... 4. 0 (9 8. 7) 11 3 < 0. 00 1 0. 27 3 0. 00 1 4 2 80 8 44 2 20 9. 1 (1 34 .0 ) 31 6 2 58 1 62 ... whales killer whales sperm whales Fishing sector Le ve l o f i nt er ac tio n 90% 80% 70% 60 ... Exclusive Economic Zones: an assessment of depredation levels Abstract / Description: Interactions between ... together. An extensive photo-identifi cation effort, primarily focussing on killer whales, allowed a total ... small number of individual killer whales were responsible for most of the interactions with the fishery ...
Science Journal Paper : CCAMLR Science, Volume 14 (CCAMLR Science, Volume 14) : 67–82 : Author(s): Roche, C., C. Guinet, N. Gasco and G. Duhamel
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e-sc-iv-a6.pdf
... . 2. Having briefly reviewed the background to the meeting, the Chairman proposed an agenda (see Appendix ... of documents were available to the meeting and these are listed in Appendix III. REVIEW OF PURPOSE ... OF THE MEETING 4. The purpose of the meeting was reviewed. The aims of the group were, briefly ... study. It is likely that the money involved would be around the cost of one year’s consultancy time ... readily used as an index of density. For this operation fishing appears to be more or less continuous ... for krill. Changes in the character of krill aggregations with local krill density may give an ... were likely to be large for some countries’ operations and that questions had been raised whether ... acoustic surveys would also be a serious consideration for their implementation over an extended area
application/pdf attached to:WS-KCPUE-85
Meeting Report : WS-KCPUE-85
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BIOLOGICAL PROSPECTING IN THE SOUTHERN OCEAN, A ROLE FOR CCAMLR
requirements outlined in Article 20 and monitoring requirement pursuant to Article 2. Author(s): Submitted ... requirements outlined in Article 20 and monitoring requirement pursuant to Article 2. ... the deep sea and in particular from Southern Ocean. This also raises the question of the public ... the deep sea and in particular from Southern Ocean. This also raises the question of the public ...
Meeting Document : CCAMLR-XXVII/BG/36 : Author(s): Submitted by IUCN
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Volume 7: CCAMLR. 1995. Statistical Bulletin, Vol. 7 (1985–1994). CCAMLR, Hobart, Australia.
is the split-year 1 July to 30 June. Split-years are shown for instance as 1989/90. 1.5 Some tables ... ----"" ""--- 25· E 30· 40' 50' 60· . 70· 80· 90' E 40' s~_:::5_:=JIIIIIII[:=J_~IiIIIIIII[=IiIIIIIII ... . . . . . . . . . . . . . . . . . . . . . . 80 Repartition a echelle precise d'Euphausia ba, divisions 58.4.1 et 2 ........... 90 Repartition ... Figure 1: Map of the Convention Area. ... ) J (I I I ... '" J w 80' W 70· 60' 50· 40' 30 ...
Document : Site Section: Publications