Search results
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A preliminary survey on breeding population of Adélie penguins at Cape Hallett in the Ross Sea region, Antarctica
out a preliminary survey on the population size and foraging trips of penguins at Cape Hallett. All ... a preliminary survey on the population size and foraging trips of penguins at Cape Hallett. All sub-colonies ...
Meeting Document : WG-EMM-17/06 : Author(s): J.-H. Kim, H. Chung, W.Y. Lee, J.-W. Jung, M.C. Park, H.C. Shin and J.H. Kim
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Studies of seabirds and seals at Bouvetøya 1998/99
(A3), age-specific annual survival and recruitment (A4), duration of foraging trips (A5), breeding ... (A3), age-specific annual survival and recruitment (A4), duration of foraging trips (A5), breeding ...
Meeting Document : WG-EMM-00/13 : Author(s): K. Isaksen (Norway), O. Huyser, S. Kirkman, R. Wanless and W. Wilson (South Africa)
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Human activity and disturbance: building an Antarctic site inventory
–and are expected to increase–because of the growing number of expedition tour operators and of the number of trips ... of trips being offered. In this context, the soon-to-be-effective Antarctic Environmental Protocol ...
Meeting Document : WG-EMM-98/09 : Author(s): R. Naveen, Oceanites (USA)
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Fishery Report 2018: Dissostichus eleginoides Heard Island Australian EEZ (Division 58.5.2)
fishing trips and during random stratified trawl surveys (RSTS). The surveys cover a geographic area ... -17/P04), (iv) updated tag-loss estimates (WG-FSA-17/21), (v) a bias correction for fish emigrating ...
Document : Site Section: Publications
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Fishery Report 2017: Dissostichus eleginoides Heard Island Australian EEZ (Division 58.5.2)
and most frequently taken by-catch species. Data are collected during commercial fishing trips and during ... parameters, (iii) updated maturity parameters (WG-FSA-17/P04), (iv) updated tag-loss estimates (WG-FSA-17 ...
Document : Site Section: Publications
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WG-EMM-Methods-96
penguin Clarke, J. WG-EMM-Methods-96/11 Gender differences in Adelie penguin foraging trips (CCAMLR ... Standard Method A5: duration of foraging trips) Kerry, K., Clarke, J. WG-EMM-Methods-96/12 CEMP monitoring ...
Meeting
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Timing of clutch initiation in Pygoscelis penguins on the Antarctic Peninsula: towards an improved understanding of off-peak census correction factors
the first egg is laid, and the point at which the nest is officially deemed ‘active’) follows a normal dis ... of clutch initiation (Days after October 1) M od el p re di ct io n (D ay s af te r O ct ob er ... 1 ) r = 0.752 Mean date of clutch initiation (days after 1 October) 55 50 45 40 35 30 M od el p re di ... rates) have important implica- tions biologically, some of which have been dis- cussed here ... Paper Title: Timing of clutch initiation in Pygoscelis penguins on the Antarctic Peninsula ... : towards an improved understanding of off-peak census correction factors Abstract / Description: Penguin ... being conducted at the peak of egg laying. Additionally, the historical literature includes many census ... timed relative to the peak of egg laying, and (ii) how nest numbers change through the breeding cycle ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 149–165 : Author(s): Lynch, H.J., W.F. Fagan, R. Naveen, S.G. Trivelpiece and W.Z. Trivelpiece
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Review of the use of survey data and length-at-age models in the assessment of Dissostichus eleginoides in the vicinity of Heard Island and McDonald Islands (Division 58.5.2)
Abstract: This paper reviews the data used to estimate the abundance of juvenile Dissostichus ... eleginoides in Division 58.5.2 and examines the sensitivity of the assessment of yield to these results ... . Primarily, it is proposed to revise the use of historical survey data by reassigning them to the strata ... established in 2003. In addition, the sensitivity of the estimates of abundance to the latest length-at-age ...
Meeting Document : WG-FSA-SAM-06/15 : Author(s): D.C. Welsford, A.J. Constable and G.B. Nowara (Australia)
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Review of the use of survey data and length-at-age models in the assessment of Dissostichus eleginoides in the vicinity of Heard Island and McDonald Islands (Division 58.5.2)
Abstract: This paper reviews the allocation of historical survey data to the new strata and the ... implications of this review to estimating the abundance of juvenile fish using CMIX. In addition, the paper ... could affect the estimates of juvenile abundance. Model estimates were best incorporating the ... reassignment of hauls and the latest estimates of length at age, but quality of model fit and estimates of ...
Meeting Document : WG-FSA-06/44 Rev. 1 : Author(s): D.C. Welsford, A.J. Constable and G.B. Nowara (Australia)
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The error of the biomass estimate as a function of survey parameters and the statistics of a density field of krill aggregations
Abstract: Simple relationships expressing dependence of sampling relative error in biomass ... estimate (by means of a survey) on statistical characteristics of fish concentration density field under ... examination and on parameters of survey itself, have been derived with the help of mathematical statistics and ... methods of calculus of probabilities; biomass estimate is determined as a product of average density for ...
Meeting Document : SC-CAMLR-VI/BG/39 : Author(s): Z.I. Kizner (USSR)