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1. Environment–krill relations in the South Georgia marine ecosystem

   study, time series of krill abundance (CPUE) indices were derived from Soviet fishing operations in the ... atmospheric components of the system, and there are also correlations with CPUE data. The CPUE index generally ... agrees with other data which give direct or indirect indications of krill availability, suggesting it can ... were only expressed strongly in years of extreme conditions. The correlation with water temperature was ... distribution at one or more scales. In this paper a time series of the catch per unit effort (CPUE ... grounds rather than fishing being directed at specific swarms. The usefulness of CPUE within a season ... index characterises the predominant direction of air movement. Negative values of Z-AT indicate air ... transport to the east and negative values of M-AT reflect air transport to the north. In this study the Z ...

   Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 13–30 : Autor(es): Fedoulov, P.P., E. Murphy and K.E. Shulgovsky

2. Fishery Report 2013: Dissostichus eleginoides Heard Island (Division 58.5.2)

   in Conservation Measure (CM) 41-08. At the commencement of the fishery, the catch limit was 3 800 ... this fishery peaked at 2 864 tonnes in 2004, which accounted for 99.5% of the catch limit set for that ... certainty that exploitation rates at the scale of the stock or research unit will not negatively impact the ... Division 58.5.2 was estimated using large amounts of catch-at-age data for the first time in WG-FSA-09/20 ...

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3. UK: 48.3 Assessment Summary

   relevant papers at the end of this document for further details Year Changes from previous assessment ... included is that which was available at the end of the 2016/17 fishing season, i.e. the extent of the data ... inclusion of catch at age data in 2009. Natural mortality Fixed value for all ages Source data/Values 0.13 ... is applied in the model. References Tag mortality at length described in WG-FSA-07/29 Effect of ...

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4. Spatially explicit population dynamics models for Antarctic toothfish in the Ross Sea region

   dynamics of spatial heterogeneity of the population along with age structure, movement and reproductive ... region and used as operating models to evaluate the performance of single-area assessments. The models ... shapes of the preference functions were established through iterative model testing whilst the parameters ... defining the preference functions were estimated within each model. The spatial structure of the models ... fish is the same as that of an untagged fish, irrespective of the location at which tagged fish were ... moved by Antarctic toothfish (median of about 20 km after a year at liberty, see Parker et al., 2013 ... been fished on at least one occasion since the fishery began. Each cell represents the part of the ... was restricted to those cells that have been fished and have recorded a catch of toothfish on at ...

   Science Journal Paper : CCAMLR Science, Volume 21 (CCAMLR Science, Volume 21) : 19–37 : Autor(es): Mormede, S., A. Dunn, S. Hanchet and S. Parker

5. Precautionary measures for a new fishery on Martialia hyadesi (Cephalopoda, Ommastrephidae) in the Scotia Sea: an ecological approach

   , Ommastrephidae) in the Scotia Sea: an ecological approach Abstract / Description:  In anticipation of the ... development of a new fishery for the ommastrephid squid Martialia hyadesi in the Scotia Sea, this paper ... presents a revision of annual consumption of the species by higher predators and provides a brief review of ... information about the life cycle and distribution of the species obtained from research fishing and commercial ... exploratory survey in the vicinity of South Georgia, Shag Rocks and at the Antarctic Polar Frontal Zone ... (APFZ) west of South Georgia, and caught about 8 tonnes, all at the APFZ (Rodhouse, 1991). In ... (grey-headed albatrosses feeding chicks at Bird Island, South Georgia) to the APFZ north of South ... with about 60 000 tonnes of I. argentinus. In February 1996 another BAS research cruise at South ...

   Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 125–139 : Autor(es): Rodhouse, P.G

6. WG-FSA-08/60

   snoods and hooks are attached Downline: A vertical section of line buoyed at the surface and ... connected to a weight or a number of weights such as chains or grapnels at the beginning or end of the ... buoyancy. Often used in downlines at the surface end to minimise the risk of a vessel propeller or ice ... backbone enters the water at about 1.5m from the stern of the vessel and starts sinking immediately, the ...

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7. Fishery Report 2014: Dissostichus eleginoides Heard Island (Division 58.5.2)

   to at least 3 000 m depth around the periphery of the plateau. Fish smaller than 60 cm total length ... estimate of M = 0.155 was derived from catch-at-age and aged mark-recapture data (Candy et al., 2011 ... median B0 of 108 586 tonnes (92 263–132 167; 95% CI), with the median spawning stock biomass (SSB) at ... by CCAMLR (Table 4). 29. Length–weight relationships, length-at-maturity data and estimates of ...

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8. WG-SAM-10/20

   impact assessment framework at different spatial scales, and implications for the validity of the ... impact assessment framework at different spatial scales, and implications for the validity of the ... use of vulnerability to describe the physical susceptibility of a VME organism to damage at the ... The initial New Zealand assessment summarized effort patterns at the extremes of large and small ...

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9. Fish stock assessment survey in Subarea 48.3

   fish survey in the vicinity of South Georgia, CCAMLR Subarea 48.3, is described. Details are given of ... positions of hauls, catch rates and size composition of catches. The standing stock of one of the most ... ) . 2. SURVEY AREA AND DESIGN The survey was aimed at providing information representative of the ... total of 66 sites was fished at South Georgia and 12 at Shag Rocks. The locations of the sites actually ... representative of a station within each depth stratum and at each location is shown in Table 2. 26 A ... species that migrate off the bottom at night. 3. DESCRIPTION OF VESSEL AND SAMPLING METHODS A stern ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 25–67 : Autor(es): Everson, I., G. Parkes, K.-H. Kock, S. Campbell, Z. Cielniaszek and J. Szlakowski

10. Australia: Relevant references for the Patagonian toothfish (Dissostichus eleginoides) stock assessment in Division 58.5.2

    S.G. (2007) Comparison of estimators of effective sample size for catch-at-age and catch-at-length ... , Hobart, Australia. Candy S.G. (2008) Estimation of effective sample size for catch-at-age and catch-at ... effective sample size in the application of age length keys to estimation of catch-at-age proportions ... catch-at-age data and two years of survey abundance-at-age data. Document WG-SAM-09/07, CCAMLR, Hobart ...

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