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1. SPATIAL PATTERNS IN MACKEREL ICEFISH DIET PROVIDES INSIGHTS INTO KRILL ABUNDANCE AND DISTRIBUTION

   low in Antarctic krill (7 % IRI) compared with similar data for the same month in 2004-2006. The ... results are consistent with other indicators of krill availability on the South Georgia shelf, which ... occurrence of krill in the diet with earlier data sets (1967-1992) show that 2009 is not unique, as similarly ... poor krill years occurred in 1969, 1978 and 1991. Spatial analysis of icefish diet indicates ...

   Meeting Document : WG-EMM-09/27 : Autor(es): M.A. Collins and C.E. Main (United Kingdom)

2. An overview of tagging skates (Rajiformes) and CCAMLR skate tagging data

   , longevity, discard survival and abundance. Most Antarctic skate species are little known and, coupled with ... conducted in the CCAMLR area for several years now, only preliminary observations have been presented to ... tag loss and tag shedding rates in fish (with emphasis on elasmobranchs), a summary of CEFAS tagging ... of the tagging work undertaken under the auspices of CCAMLR in the Southern Ocean with comments on ...

   Meeting Document : WG-SAM-13/25 Rev. 1 : Autor(es): S.R. McCully, D. Goldsmith, G. Burt, R. Scott and J.R. Ellis (United Kingdom)

3. An overview of tagging skates (Rajiformes) and CCAMLR skate tagging data

   , longevity, discard survival and abundance. Most Antarctic skate species are little known and, coupled with ... conducted in the CCAMLR area for several years now, only preliminary observations have been presented to ... tag loss and tag shedding rates in fish (with emphasis on elasmobranchs), a summary of CEFAS tagging ... of the tagging work undertaken under the auspices of CCAMLR in the Southern Ocean with comments on ...

   Meeting Document : WG-FSA-13/33 : Autor(es): S.R. McCully, D. Goldsmith, G. Burt, R. Scott and J.R. Ellis (United Kingdom)

4. VARIATION IN DEMERSAL FISH SPECIES RICHNESS IN THE OCEANS SURROUNDING NEW ZEALAND: AN ANALYSIS USING BOOSTED REGRESSION TREES

   species richness, with highest richness occurring at depths of 900 to 1000 m, and with a broad plateau of ... moderately high richness between 400 and 1100 m. Richness was higher both in waters with high surface ... temperature was also important, with lower richness occurring in waters that were cooler than expected given ... constrained to reflect the known performance of trawl gear. Species richness declined with increasing cod-end ...

   Meeting Document : WS-VME-09/P04 : Autor(es): Leathwick, J.R., Elith, J., Taylor, P., Francis, M.P., Hastie, T.

5. Numerical model of ecosystem including Euphausia superba Dana as a key species in circumpolar region

   integrated model with the above 5 items. This year, we have developed an OGCM and a one dimensional ecosystem ... applied to primary production in Antarctic Ocean (3) to develop an ecosystem model able to describe krill ... ) with seven compartments and coupled with a one dimensional mixed layer model for calculating the ...

   Meeting Document : WG-Krill-94/26 : Autor(es): M.J. Kishi and M. Naganobu (Japan)

6. Fishery Report: Dissostichus eleginoides Heard Island (Division 58.5.2)

   assessment was 1982 to 2011 with future projections for another 35 years. The initial age structure assumed ... catch older fish (>20 years) than trawl gear which has high selectivity for 6-year-old fish ... across years in estimated year-class strength. Recruitment surveys 11. Surveys of young toothfish ... were available for the years 2006–2011 to determine abundance-at-age using survey- and year-specific ...

   Document : Site Section: Publications

7. An index of per capita recruitment

   assumptions that: (i) post-recruit mortality does not vary over age or between years; (ii) 100% of age-l ... largest with high values of R 1; increasing M tends to offset this effect but only slightly. A simple ... years, and when all age-l animals spawn. These conclusions are insensitive to changes in the shape of ... the functional relationship between spawners and recruits. PCR is biased low with age-specific decline ... capita recruitment (PCR). Such a measure could be obtained with surveys in successive years provided ... with one year of mortality removed: In addition to compounding the results of two PCRy_l ... , R3, R4 . . . are the proportions of N that are in the age-l, age-2, age-3, age-4 . . . year classes ... ; M2, M3, Mq . . . the post- recruit mortality rates for age-2, age-3, age-4 ... year classes; and y ...

   Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 179–196 : Autor(es): Hewitt, R

8. A summary of the commercial fishery for mackerel icefish Champsocephalus gunnari in Subarea 48.3 during the 1997/98 season

   briefed before the short trip to South Georgia. It is unclear whether the poor catches by the FV Betanzos ...

   Meeting Document : WG-FSA-98/53 : Autor(es): G. Parkes, A. King and C. Jones (United Kingdom)

9. Fishery Report 2017: Exploratory fishery for Dissostichus mawsoni in Division 58.4.2

   , paragraph 3.68). Those years that include quarantined data are indicated with a superscript q and vessel ... fish) to achieve a stock assessment within a time period of 3 to 5 years. These catch limits are also ... from areas with assessed fisheries and are not more than 3–4% of the estimated stock size. 9. In ... ) in each year are provided. Note: length-frequency distributions are only presented for those years ...

   Document : Site Section: Publications

10. Fishery Report 2018: Exploratory fishery for Dissostichus mawsoni. in Division 58.4.2

    tagged fish) to achieve a stock assessment within a time period of 3 to 5 years. These catch limits are ... estimates from areas with assessed fisheries and are not more than 3–4% of the estimated stock size. 9 ... with a new fishery for grenadier (Macrourus spp.). In 2003, the fishery for Dissostichus spp. in ... to better align the target species with the assessment process the target species was specified as D ...

    Document : Site Section: Publications

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