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1. Preliminary analysis of seabird by-catch using CCAMLR observer data

   data precluded analysis of seabirds at a taxon level more detailed than albatrosses and petrels ... Dissostichus eleginoides and various factors, including the nature and use of mitigating measures as well as ... environmental variables such as time of day, time of year. Out of 3283 longline sets analysed only 311 caught ... distribution of non-zero values) and were analysed using two Generalised Linear Models, a binomial model for ...

   Meeting Document : WG-FSA-99/28 : Autor(es): D.J. Agnew and J.P. Croxall (United Kingdom)

2. Net-based verification of acoustic techniques used to identify Antarctic krill

   between acoustic backscatter at and 38 kHz (SV120-3B) and at 200 and 120 kHz (Sv200-120) were calculated ... . Using the SDWBA model, dB difference identification ranges based on the length-frequencies of krill in ... of 2-16 dB and (iv) '2 freq 2-12'-with an Sv120-38 range of 2-12 dB The '3 freq model ... identified only 6 of the 16 krill aggregations sampled the nets. contrast the '2 freq model' and ...

   Meeting Document : SG-ASAM-09/04 : Autor(es): J. Watkins and S. Fielding (United Kingdom)

3. An assessment of seabird interactions with longlining operations for Dissostichus eleginoides around South Georgia, March–May 1997

   interactions with seabirds, and the effectiveness of measures employed to mitigate seabird mortality. In this ... study 61 lines were laid during April and May, all set at night using the Spanish double-line method ... setting operations and all but one during April, giving an average mortality rate of 0.018 birds/1000 ... hooks, and 0.099 birds/1000 observed hooks. Mortalities consisted of nine white-chinned petrels, two ...

   Meeting Document : WG-FSA-97/09 : Autor(es): Ashford, J.R., Croxall, J.P.

4. A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997/98 to 2011/12

   last 2–3 years. This appears to be at least partly a result of vessels carrying out more fishing in ... structure or abundance of Antarctic toothfish at the regional (Subarea) or local (SSRU) level. We also ... Subarea 88.1 and for 10 years in Subarea 88.2. This report summarises the timing, depth, and location of ... fishing together with the catch of Dissostichus spp. and bycatch species by year for the period 1997–98 to ...

   Meeting Document : WG-FSA-12/42 : Autor(es): M.L. Stevenson ,S.M. Hanchet, S. Mormede and A. Dunn (New Zealand)

5. By-catch of juvenile Antarctic fish from krill (Euphausia superba Dana) fisheries in the South Georgia area, in 1992

   . The mean daily length increase in N.larseni is estimated at 0.09 mm. Juveniles of Euphausia superba ... krill fishing by the BAT GrigOly Kovtun in the region of the South Georgia Islands during the period May ... larseni. The frequency of occurrence of juvenile fish was 18.2% when considering all krill tows and 45.5 ... % when only tows made in shelf waters were considered. Juvenile fish abundance, normalised to 1 t of ...

   Meeting Document : WG-FSA-93/8 Rev. 1 : Autor(es): E.A. Pakhomov and S.A. Pankratov (Ukraine)

6. Interaction of sperm whales with bottom longline and the Mammal and Bird Excluding Device (MBED) operation in the Patagonian toothfish (Dissostichus eleginoides) fishery in the southwestern Atlantic

   in the southern zone (latitude 50º 00’ S) at an average depth of-1282 m. 57.2% of the total number of ... two different fishing zones at 40º and 50º latitudes in the Southwestern Atlantic from March to May ... hauls were observed. Onboard observers recorded: a) quantity and quality of fish parts remaining in the ... recovered longline; b) presence and number of sperm whales and c) comparative fishing yields with and ...

   Meeting Document : WG-FSA-07/23 : Autor(es): O. Pin and E. Rojas (Uruguay)

7. Standardised CPUE analysis of the Antarctic toothfish (Dissostichus mawsoni) fishery in the Ross Sea for the years 1997/98 to 2005/06

   . Hence the CPUE indices developed here are of limited use as indices of toothfish abundance at the ... ) since 1997 in CCAMLR Subareas 88.1 and 88.2. Previously, standardised analysis of toothfish CPUE (catch ... fishing years. This report revises and updates the previous analysis with the addition of data from the ... that have been in the fishery for at least 4 years. We estimate indices using both lognormal ...

   Meeting Document : WG-FSA-06/47 : Autor(es): A. Dunn and S.M. Hanchet (New Zealand)

8. THE POWER OF ECOSYSTEM MONITORING

   monitoring programme of the predators of Antarctic krill Euphausia superba at South Georgia together with a ... ecosystem monitoring programme, the utility of which depends upon its ability (measured by the statistical ... power to detect the effects of different levels of fishing was examined. 3. The power to detect the ... effects of fishing using either the krill population or a combined predator response index was low (20–40 ...

   Meeting Document : WG-EMM-08/P11 : Autor(es): K. Reid, J.P. Croxall and E.J. Murphy

9. Revised research plan for the 2013/14 exploratory longline fishery of Dissostichus spp. in Division 58.4.3a

   in the last WG-SAM meeting. We tentatively recalculated a sample size of Dissostichus spp in each ... block in such a way that the numbers of tag recoveries in the 2016 season shows an approximately 0.3 of ... coefficient variance of biomass estimate from the bootstrapped procedure, under the condition that the ... to estimate appropriate catch limit, we propose to conduct the current research operation for at ...

   Meeting Document : WG-FSA-13/40 : Autor(es): Delegation of Japan

10. Foraging interactions of wandering albatrosses Diomedea exulans breeding on Marion Island with longline fisheries in the southern Indian Ocean

    Abstract:  Concerning numbers of Wandering Albatrosses Diomedea exulans are killed when they ... attempt to scavenge baited hooks deployed by long-line fishing vessels. We studied the foraging ecology of ... Wandering Albatrosses breeding on Marion Island in order to assess the scale of interactions with known long ... island, in warmer waters, and showed high spatial overlap with areas of intense tuna Thunnus spp. long ...

    Meeting Document : WG-FSA-01/10 : Autor(es): D.C. Nel, P.G. Ryan, J.L. Nel, N.T.W. Klages (South Africa), R.P. Wilson (Germany) and G. Robertson (Australia)

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