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1. A study on calibration for commercial echosounder using bottom backscattering strength in Antarctic

   by bottom backscattering strength, since the proportion of krill swarm signals within 2 dB < S V120kHz ... ‒ 38 kHz < 12 dB (i.e. a common ΔMVBS range of 38kHz and 120kHz to be an indicative of Antarctic ... , since the proportion of krill swarm signals within 2 dB < SV120kHz‒38 kHz < 12 dB (i.e. a common ...

   Meeting Document : SG-ASAM-17/P01 : Author(s): S.-G. Choi, H. Lee, K. Lee and J. Lee

2. Is current management of the Antarctic krill fishery in the Atlantic sector of the Southern Ocean precautionary?

   to a long-term exploitation rate (catch divided by biomass) of <7%, which is below the 9.3% level ... variability in krill biomass indices. The actual exploitation rate in each subarea has remained <3% because ... annual catches have been <50% of the regional trigger level since 1991. The subarea catch limits help ... exploitation rate (catch divided by biomass) of <7%, which is below the 9.3% level considered precautionary ...

   Meeting Document : WG-EMM-16/21 : Author(s): S. Hill, A. Atkinson, C. Darby, S. Fielding, B. Krafft, O.R. Godø, G. Skaret, P. Trathan and J. Watkins

3. Is current management of the Antarctic krill fishery in the Atlantic sector of the Southern Ocean precautionary?

   rate (annual catch divided by biomass) of <7%, which is below the 9.3% level considered appropriate ... exploitation rate in each subarea has remained <3% because annual catches have been <50% of the trigger ... by biomass) of <7%, which is below the 9.3% level considered appropriate to maintain the krill stock ... in each subarea has remained <3% because annual catches have been <50% of the trigger level since ...

   Science Journal Paper : CCAMLR Science, Volume 23 (CCAMLR Science, Volume 23) : 31–51 : Author(s): Hill, S.L., A. Atkinson, C. Darby, S. Fielding, B.A. Krafft, O.R. Godø, G. Skaret, P.N. Trathan and J.L. Watkins

4. Biomass of Antarctic krill (Euphausia superba) off east Antarctica (30–80°E) in January–March 2006

   in relatively weak aggregations (s A <100 m 2 nmi-2 for each 2 km-alongtrack integration interval), with 50 ... % of integration intervals containing backscattering values <10 m 2 nmi-2. Half of the biomass was found within ... aggregations (sA <100 m2 nmi-2 for each 2 km-alongtrack integration interval), with 50% of integration ... intervals containing backscattering values <10 m2 nmi-2. Half of the biomass was found within 100 km ...

   Meeting Document : WG-EMM-06/16 : Author(s): T. Jarvis, E. van Wijk, N. Kelly, S. Kawaguchi and S. Nicol (Australia)

5. Age and growth of the Antarctic skate (Amblyraja georgiana) in the Ross Sea

   for both sexes provides the best available representation of growth in the species: Lt = 70.8(1-e-0.308 ... [t+1.10]), where Lt is the pelvic length (PL) in centimetres at age t. Applying this growth curve ... for both sexes provides the best available representation of growth in the species: Lt = 70.8(1-e-0.308 ... [t+1.10]), where Lt is the pelvic length (PL) in centimetres at age t. Applying this growth curve ...

   Meeting Document : WG-FSA-04/29 : Author(s): M.P. Francis and C. Ó Maolagáin (New Zealand)

6. Global MPAs and marine reserves: lessons learned and implications for CCAMLR

   statistically significant outcomes on fish population metrics, including: “no take, well enforced, old (>10 ... years), large (>100km 2) and isolated by deep water or sand” (Edgar et al. 2014). Two analyses of New ... population metrics, including: “no take, well enforced, old (>10 years), large (>100km2 ...

   Meeting Document : CCAMLR-XXXIII/BG/20 : Author(s): Submitted by ASOC

7. Analysis of the by-catch of Channichthys rhinoceratus and Lepidonotothen squamifrons from the fisheries at Heard Island and the McDonald Islands (Division 58.5.2)

   in this study shows that both species are widespread over the plateau in waters of <1000 m. In most areas ... they occur at densities <100 kg.km-2, but each species has separate areas of aggregation where densities ... in this study shows that both species are widespread over the plateau in waters of <1000 m. In most areas ... they occur at densities <100 kg.km-2, but each species has separate areas of aggregation where densities ...

   Meeting Document : WG-FSA-12/24 : Author(s): G.B. Nowara, D.C. Welsford, S.G. Candy and T.D. Lamb (Australia)

8. ECOLOGICAL REPERCUSSIONS OF HISTORICAL FISH EXTRACTION FROM THE SOUTHERN OCEAN

   stocks were on average reduced to <50%, and finally (mid-1980s) to <20%, of original size. Despite ... on average reduced to <50%, and finally (mid-1980s) to <20%, of original size. Despite management ...

   Meeting Document : WG-EMM-08/P07 : Author(s): D. Ainley and L. Blight

9. Diet composition and feeding strategy of Antarctic toothfish, Dissostichus mawsoni in the research blocks 58 and 88 for the exploratory longline fishery in 2014–2018 of Korea

   , and mammals. In this study, fishes were the dominant prey item in all size classes (<100 cm, 100-120 cm ... , 120-140 cm, 140-160 cm, 160< cm). The graphical method for feeding strategy revealed ... , and mammals. In this study, fishes were the dominant prey item in all size classes (<100 cm, 100-120 cm ... , 120-140 cm, 140-160 cm, 160< cm). The graphical method for feeding strategy revealed ...

   Meeting Document : WG-FSA-18/24 : Author(s): G.W. Baeck, S.-G. Choi, S. Chung and D.H. An

10. Validation of sink rates of longlines measured by two different methods

    was statistically significant (t5 =-2.720, P = 0.042). Measuring sink rates to > 10 m proved difficult ... and unreliable with bottles. Bottles had a higher failure rate (51 – 68 %) than TDRs (> 90 %), for example ... be an appropriate means for measuring sink rates to shallow depths (> 5 m) that they should not be used ...

    Meeting Document : WG-FSA-03/62 : Author(s): B. Wienecke and G. Robertson (Australia)

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