Search results
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Revised research plan for the 2013/14 exploratory longline fishery of Dissostichus spp. in Division 58.4.1
favorable for operations for most of research blocks. The separation rule was one of the major ... favorable for operations for most of research blocks. The separation rule was one of the major ... limit, we propose to conduct the current research operation for at least 3 years with the same sample ... in the current research blocks during past 10 years. The sea-ice condition during the summer season was generally ...
Meeting Document : WG-FSA-13/38 : Author(s): Delegation of Japan
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Revised research plan for the 2013/14 exploratory longline fishery of Dissostichus spp. in Division 58.4.2
season was generally favorable for operations for the research block. The separation rule was one ... season was generally favorable for operations for the research block. The separation rule was one ... to estimate appropriate catch limit, we propose to conduct the current research operation for at least 3 years ... sea-ice in the current research blocks in past ten years. The sea-ice condition during the summer ...
Meeting Document : WG-FSA-13/39 : Author(s): Delegation of Japan
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Age determination of Notothenia gibberifrons from the South Shetland Islands, Antarctic Peninsula subarea (Subarea 48.1)
those in the same age group around South Georgia. Likewise, our values are lower than the ones reported ... scale readings gave a result of one year more. This could arise from the difficulty in differentiating ... in 19 Potter Cove specimens. In some cases scale readings gave a result of one year more. This could ... Paper Title: Age determination of Notothenia gibberifrons from the South Shetland Islands ... indicated one extra year. This finding is discussed below. Table 2 shows the observed age-length ... Abstract Age determination was carried out on Notothenia gibberifrons specimens collected at two ... compared in 19 Potter Cove specimens. In some cases scale readings gave a result of one year more ... years, respectively. Comparison of mean length at certain age groups suggested similarity in growth ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 143-160 : Author(s): Barrera-Oro, E.
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An index of per capita recruitment
recruitment (PCR) is proposed such that where R 1 is the proportion of age-l animals sampled in year ... that: (i) post-recruit mortality does not vary over age or between years; (ii) 100% of age-l animals spawn; (iii ... to recruits per spawner when mortality is constant over all ages and years, and when all age-l animals spawn ... years; (ii) 100% of age-l animals spawn; (iii) a representative sample of the population is available ... to spend one to two years in the juvenile and sub- adult stages and may not spawn until age 2 or age ... spawn and to 0.200 if uniform with lower values more common than no age-2 animals spawn. higher ones ... is the proportion of age-l animals sampled in year y and M is the post-recruit mortality rate. The intent ... or between years; (ii) 100% of age-l animals spawn; (iii) a representative sample of the population ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 179–196 : Author(s): Hewitt, R
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Conservation Measure Conservation Measure 41-04 (2018)
Limits on the exploratory fishery for Dissostichus mawsoni in Statistical Subarea 48.6 in the 2018 ... Period in Force: 2018- 2019 ... Limits on the exploratory fishery for Dissostichus mawsoni in Statistical Subarea 48.6 in the 2018 ... in the fishery shall have at least two scientific observers, one of whom shall be an observer appointed ... vessels using longlines only. No more than one vessel per country shall fish at any one time ... Subarea 48.6, the 2018/19 season is defined as the period from 1 December 2018 to 30 November 2019 ... coordinates 68°20'S 10°00'E 68°20'S 13°00'E 69°30'S 13°00'E 69°30'S 10°00'E 69°45'S 10°00'E 69°45 ...
Conservation Measure : 41-04 (2018)
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Some comments on the procedure for testing estimators of krill abundance which utilise survey data
on the distributions from surveys. ‘Two-level’ models of krill distribution are considered. These achieve overall ... concentrations; these concentrations are then located at random within the survey area. These ‘two-level’ models ... patterns, which are compatible with existing information on the distributions from surveys. ‘Two ... ; these concentrations are then located at random within the survey area. These ‘two-level’ models provide ... is that the data are collected along one-dimensional transects, whereas it is a two-dimensional structure which ... ). One simple approach to generating spatially correlated data is to use a two stage process. Thus ... survey design by a systematic one would be a satisfactory procedure in most circumstances ... correlation effects need to be introduced, this exercise becomes distinctly non-trivial. Ideally one would ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 191–205 : Author(s): Butterworth, D.S., D.L. Borchers and D.G.M. Miller
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Educational poster on hook ingestion
that alternative means should be considered. One alternative means would be the production and distribution ... be considered. One alternative means would be the production and distribution by CCAMLR of a poster designed ... in them. The hooks found in albatross colonies at South Georgia in years prior to 2001/02 were of the type ... albatrosses. The injuries appear to have two sources – injuries from the ingestion of discarded fish heads ...
Meeting Document : WG-FSA-07/20 : Author(s): G. Robertson (Australia)
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Population genetic structure of Patagonian toothfish in the West Indian Ocean sector of the Southern Ocean
(n = 2) Islands were typed using two fragments of mitochondrial DNA (mtDNA) and seven nuclear microsatellite loci ... using two fragments of mitochondrial DNA (mtDNA) and seven nuclear microsatellite loci. MtDNA haplotype ... D. eleginoides (albeit rarely) are capable of wide movements across deep waters from one fi shery to another ... per locus per collection ranged from one (locus To5) to 21 (locus cmrDe9). After sequential ... on FST values across the seven loci produced only one signifi cant comparison between Crozet and PEMI2 ... was between HIMI and Kerguelen collections of D. eleginoides, while one of the largest values was between ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 21–32 : Author(s): Appleyard, S.A., R. Williams and R.D. Ward
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Implanted identification tags in penguins: implantation methods, tag reliability and long-term effects (draft version)
problems associated with the use of implanted devices. The transponder removed from one bird had developed ... be lower than that of untagged populations. Migration of tags away from the injection site may also ... with the use of implanted devices. The transponder removed from one bird had developed a slimy biofilm ... than that of untagged populations. Migration of tags away from the injection site may also compromise ...
Meeting Document : WG-EMM-Methods-96/08 : Author(s): Kerry, K., Clarke, J.
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Status of white-chinned petrels Procellaria aequinoctialis Linnaeus 1758, at Bird Island, South Georgia
occurred in one-quarter of the 460–47736-m2 quadrats surveyed. The total number of burrows in each quadrat ... ). This suggests that any population decline is due to factors operating away from the breeding colony ... occurred in one-quarter of the 460–47736-m2 quadrats surveyed. The total number of burrows in each quadrat ... ). This suggests that any population decline is due to factors operating away from the breeding colony ...
Meeting Document : WG-FSA-01/26 Rev. 1 : Author(s): S.D. Berrow, J.P. Croxall and S.D. Grant (United Kingdom)