Search results
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ASSESSMENT MODELS FOR ANTARCTIC TOOTHFISH (DISSOSTICHUS MAWSONI) IN SUBAREA 88.2 SSRU E FOR THE YEARS 2002/03 TO 2008/09
-at-age and tag-recapture data from New Zealand vessels and for selected trips. The New Zealand vessels ... initial biomass was very imprecise. The selected trips data set resulted in a more precise estimate ... from different years. The use of the selected trips with the revised maturity ogive resulted ... -convergence in any of the models. The selected trips with the revised maturity ogive MCMC estimates of initial ...
Meeting Document : WG-FSA-09/41 : Author(s): A. Dunn and S.M. Hanchet (New Zealand)
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Fishery Report 2014: Exploratory fishery for Dissostichus spp. in Division 58.4.3b
grounds; all are large, are dominated by males (79%) and are likely spawning (iv) in East Antarctica ...
Document : Site Section: Publications
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Fishery Report: Exploratory fishery for Dissostichus spp. in Division 58.4.3b
. (v) Spawning fish in East Antarctica have only been found on BANZARE Bank (WG-FSA-07/44; SC-CAMLR-XXVII, Annex ...
Document : Site Section: Publications
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The sensitivity of multiple output statistics to input parameters in a krill–predator–fishery ecosystem dynamics model
, maintaining all others at their representative values, and is dis- tinct from a global analysis which varies ... abundance so that, in each SSMU, krill gains through recruitment and import balance losses through ... (c). Secondly, an algorithmic approach replaced the ad-hoc balancing of initial krill losses and gains in step ... krill losses and gains allows automation of risk assess- ment steps (e) to (h) but requires additional ... Paper Title: The sensitivity of multiple output statistics to input parameters in a krill ... Drake Passage. The model analysed here required 2 311 input values for each of four scenarios and ... the status of predator groups more than they affected statistics indicating the status of the target ... recruitment through pre-recruit mortality. A parameter mediating the effect of a forcing function on krill ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 97–118 : Author(s): Hill, S.L. and J. Matthews
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Observations on haul-out patterns and trends in the breeding populations of southern elephant seal at Península Valdés (Patagonia) and Stranger Point (25 de Mayo - King George I.)
as three stocks : South Georgia, Kerguelen and Macquarie (Laws, 1960). Population decrease was reported ... " pp. 10. SCAR XIX, San Diego, Califronia, USA. LAWS, R.M. 1960. The southern elephant seal ... Paper Title: Observations on haul-out patterns and trends in the breeding populations of southern ... intrinsic population growth rate is positive. In 1982, at Stranger Point, a sharp decrease of the female ... component of the population was observed (r=-56.54%). The recovery of the population at Stranger Point, and ... the global increase at Península Valdés, indicate the good condition of these populations. File: 21 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 453-463 : Author(s): Vergani, D.F., M.N. Lewis and Z.B. Stanganelli
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Assessment models for Antarctic toothfish (Dissostichus mawsoni) in Subarea 88.2 SSRU 88.2E for the years 2002–03 to 2010–11
-at-age and tag-recapture data from selected trips and all vessel trips. The 2011 reference case model ... for this increase was likely to be because of the increase in the proportion of selected trips in the 2011 ... of the models. The selected trips model run using the revised maturity ogive MCMC estimated initial (equilibrium ... -recapture data from selected trips and all vessel trips. The 2011 reference case model resulted in a 30 ...
Meeting Document : WG-FSA-11/44 : Author(s): S. Mormede, A. Dunn and S.M. Hanchet (New Zealand)
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Using ecosystem monitoring data to detect impacts
biological parameters (including diet, breeding success, weight, growth rate and foraging trip duration ... purpose of ecosystem monitoring programs is to indicate the state of ecosystems and whether they have been ... impacted by activities such as fishing. This paper discusses a range of methods for inferring such impacts ... using monitoring data with no control sites. These methods assess either (i) the expected probability of ... an observed value in an unimpacted system, or (ii) the frequency of values below a fixed reference ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 197–212 : Author(s): Hill, S.L., J. Forcada, P.N. Trathan and C.M. Waluda
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Marine debris and fishing gear associated with seabirds at sub-Antarctic Marion island, 1996/97 and 1997/98: in relation to longline fishing activity
adults during short foraging trips could exist at different locations on Marion Island ... , N. 1991. Albatross mortality and associated bait loss in the Japanese longline fishery in the Southern ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 85–96 : Author(s): Nel, D.C. and J.L. Nel
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The foraging range of Adelie penguins at Bechervaise Island, Mac. Robertson Land, Antarctica, and its overlap with the krill fishery
system. Birds were tracked over four foraging trips (by 2 females and 4 males) during the incubation ... period (November-December 1991) and 17 trips (by 4 females and 2 males) throughout January 1992 when ... birds were feeding chicks. Most birds made foraging trips to the continental shelf break (1000m isobath ... were tracked over four foraging trips (by 2 females and 4 males) during the incubation period (November ...
Meeting Document : WG-CEMP-92/36 : Author(s): K.R. Kerry, J.R. Clarke and G.D. Else (Australia)
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Breeding numbers and success of Eudyptes penguins at Marion Island, and the influence of mass and time of arrival of adults
because they are dis- crete and of relatively small size, enabling accurate counts to be undertaken from ... (Pachyptila belcheri and P. desolata) have substantial overlap in their diets while breeding, but have dis ... Island, South Georgia, during incuba- tion macaroni penguins travelled long distances on foraging trips ... : on average 572 km for males and 376 km for females, whereas during chick-rearing trips they averaged 62 km ... Paper Title: Breeding numbers and success of Eudyptes penguins at Marion Island, and the ... influence of mass and time of arrival of adults Abstract / Description: At sub-Antarctic Marion Island ... , there was substantial correlation in the numbers of adults breeding at study colonies of macaroni ... filholi) over 22 years, suggesting that overwintering conditions may influence the proportions of birds ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 175–190 : Author(s): Crawford, R.J.M., B.M. Dyer, J. Cooper and L.G. Underhill