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e-sc-ii.pdf
... Conservation of Antarctic Marine Living Resources are produced in the four official languages of the ... Commission and Scientific Committee: English, French, Russian and Spanish. Copies of documents in these ... Annex 4. 8. The draft Rules of Procedure of the Scientific Committee were discussed in the light of ... not been covered in SC-CAMLR-II/4, it was agreed that these categories could be used to structure
application/pdf attached to:SC-CAMLR-II
Meeting Report : SC-CAMLR-II
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Foraging zones of the two sibling species of giant petrels in the Indian Ocean throughout the annual cycle: implication for their conservation
Abstract: We studied the annual distribution, activity and breeding foraging trips of the sibling ... data were provided by GLS loggers (Global Location Sensing), and detail of breeding foraging trips were ... We studied the annual distribution, activity and breeding foraging trips of the sibling species ... foraging trips were provided by ARGOS PTT. In order to assess differences in bycatch susceptibility ...
Meeting Document : WG-FSA-12/67 : Author(s): L. Thiers, K. Delord, C. Barbraud (France), R.A. Phillips (United Kingdom) and H. Weimerskirch (France)
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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
) in Eastern Antarctica have Table 2: Environmental covariates examined as potential drivers of the timing ... Paper Title: Timing of clutch initiation in Pygoscelis penguins on the Antarctic Peninsula ... . In this paper the authors present an analysis relating to both these challenges. Clutch initiation ... Petermann Island) in relation to potential drivers of clutch initiation (e.g. temperature, precipitation ... factor related to the timing of clutch initiation in all three of the penguin species examined (Adélie ...
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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Investigation of bias in the mark–recapture estimate of toothfish population size at South Georgia
as the length of the straight line shown in Figure 3. The boxes on the eastern side of South Georgia were ... with the object of exam- ining the consequences of uneven distribution of tags and fishing effort. The model ... Paper Title: Investigation of bias in the mark–recapture estimate of toothfish population size at ... uneven distribution of tag placements and recapture effort, on bias in the Petersen estimator of ... ) and upwards in a low-density box, so that they tended to be retained in high-density boxes. The model ... and/or fishing effort; by ‘ideal’, it is meant that either tagging or fishing effort was in direct ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 47–63 : Author(s): Agnew, D.J., G.P. Kirkwood, J. Pearce and J. Clark
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Length-based assessments revisited – why stock status and fishing mortality of long-lived species such as toothfish cannot be inferred from length-frequency data alone
management: ap- plication to the broadbill swordfish fishery off eastern Australia. Mar. Freshw. Res., 52 ... / Description: In many of CCAMLR’s new and exploratory fisheries, stock assessment techniques are still in ... development. The failure of the tag-recapture program to provide robust assessments in many areas and doubts ... and fishing mortality from length-frequency data alone. In this paper, a number of length-based stock ... assessment methods are revisited and some limitations in their ability to draw robust inferences about stock ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 57–73 : Author(s): Ziegler, P.E., D.C. Welsford and A.J. Constable
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Age, growth and mortality of Patagonian toothfish (Dissostichus eleginoides) caught off Kerguelen
trend in abundance (Chapman and Robson, 1960; Barbieri et al., 1994). To estimate growth, data from ... . and D.S. Robson. 1960. The analysis of a catch curve. Biometrics, 16 (3): 354–368. Everson, I. 1980 ... off Kerguelen in 1999 were estimated by reading transverse-sectioned otoliths. Randomly interspersed ... showed discrepancies due to gear-specific catchability, or differences in the available population with ... depth or season. Age–length keys were constructed for use in assessing toothfish catches made by ... mortality Z was estimated to be between 0.09 and 0.12. Significant differences in age-at-length data between ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 29–41 : Author(s): Ashford, J., G. Duhamel, C. Jones and S. Bobko
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Fishery report: Dissostichus eleginoides South Georgia (Subarea 48.3)
-age ................................................................. 29 Proportion-at-length in ... its three management areas A, B and C. 2. The catch limits in the 2004/05 season for areas A, B and ... removals were therefore 3 041 tonnes. Catches in areas A, B and C were 9, 910 and 2 122 tonnes ... from areas A and B to area C. The proportion of catches in A and B declined from 35% in 2003/04 to 30 ...
Document : Site Section: Publications
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The Soviet krill fishery in the Atlantic Sector of the Antarctic from 1977 to 1991: fishing effort distribution and interannual patterns
in the zonal (along longitude) and meri- dional (along latitude) directions (Kats, 1960). In the southern ... Res., 32 (3): 369–378. Litvinov et al. 12 Kats, A.L. 1960. Seasonal variability in general ... Paper Title: The Soviet krill fishery in the Atlantic Sector of the Antarctic from 1977 to 1991 ... fishery in the Atlantic Sector of the Antarctic from 1977 to 1992 are discussed. The total fishing effort ... from 1977 to 1991 was 50 086 vessel-days fished, in Subareas 48.3 (45% of the total for the period ... ), 48.2 (36%) and 48.1 (19%). Three distinct patterns in the distribution of monthly fishing effort ...
Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 1–13 : Author(s): Litvinov, F.F., V.A. Sushin, G.A. Chernega and O.A. Berezhinsky
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e-sc-xxviii-a6.pdf
... presented a revised procedure for analysing the quality of data from individual vessel trips and proposed ... a method for using quality metrics to identify trips considered to have reliable tag-release and recapture ... for selecting a tagging dataset used the following method: (i) a subset was created of all vessel trips ... in a single year whose tags were subsequently recovered at a rate above the median rate for all trips ... undertaken for Subareas 88.1 and 88.2 in 2009, the main assessment using the final reliable trip dataset ... IN ASSESSMENTS ........................................................ 366 Age–length keys ... ................................................................................ 369 Determine the most appropriate way of creating reliable tagging datasets for use in ... longline data in estimating stock size.......................................... 371 Use of longline
application/pdf attached to:WG-SAM-09
Meeting Report : WG-SAM-09
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Long term movements and activity patterns of an Antarctic marine apex predator: the leopard seal
tags to track the movements, and activity, of four leopard seals for trips of between 142-446 days ... Island and, during their residency, use this as a central place for foraging trips as well as exploiting ... the movements, and activity, of four leopard seals for trips of between 142-446 days including one individual ... and, during their residency, use this as a central place for foraging trips as well as exploiting the local ...
Meeting Document : WG-EMM-18/P09 : Author(s): I.J. Staniland, N. Ratcliffe, P.N. Trathan and J. Forcada