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1. Stable isotope analysis reveals trophic variation in adult Antarctic krill (Euphausia superba) around the Antarctic Peninsula from austral fall to early winter

   Abstract:  The Antarctic krill (Euphausia superba) is a key species in the Southern Ocean ... ecosystem and an important link in the food web of the Antarctic ecosystem. The trophic information for this ... known overwintering mechanisms. However, the few studies on the topic differ in their results, in terms ... variation in δ 13 C and δ 15 N values of adult krill in the Antarctic Peninsula, in the austral fall (April ...

   Meeting Document : WG-EMM-2019/P03 : Автор(ы): H.T. Zhang, G.P. Zhu, Q. Song, S.Q. Wang, Y. Yang and Q.Y. Yang

2. Preliminary trials to test mitigation measures aimed at reducing Macrourus spp. by-catch on autoliners targeting D. eleginoides with longlines in the CCAMLR Convention Area

   Abstract:  Pilot studies were carried out in 48.3 in 2006 and in 88.1 and 88.2 in 2007 by the ... in catch rates of Macrourus spp due to bait was significant, but not for hook-type. Bait type had ... , variation in CPUE for target and non-target species due to geographical location, depth and soak time were ... significant. In order for the benefits of mackerel bait in reducing macrourid (and other species) bycatch to ...

   Meeting Document : WG-FSA-07/33 : Автор(ы): R.E. Mitchell, D.J. Agnew, T. Carruthers, J. Clark, L. Ross (United Kingdom) and J. van Heerden (South Africa)

3. Results of the mark–recapture experiment in Subarea 48.3, 2005

   – distributed over the whole of the fishable grounds in 48.3 this year. The Petersen mark-recapture estimator ... Abstract:  The mark-recapture experiment continued at South Georgia in 2005. In total some 8000 ... fish have now been tagged in 48.3, and both tagging effort, fishing effort and recaptures were well ... , which has been applied previously and described in detail by Agnew et al (2004) and Payne et al (2005 ...

   Meeting Document : WG-FSA-05/17 : Автор(ы): D.J. Agnew and A. Payne (United Kingdom)

4. Preliminary analysis on the Kerguelen shelf icefish Champsocephalus gunnari stock from 1996/97 to 2001/02: no evidence in the recovery!

   deverted fishermen from these specific shallow fishing grounds. However to follow the situation in the area ... cruises in the traditionnal area of fish aggregations. Such cruises occur regularly with two trawlers from ... 1996/97 to 2001/2002, the last season of trawling in the Kerguelen EZ. Preliminary results do not show ... an increasing of the icefish’s abundance in the surveyed area and biomass seems very low. It is a ...

   Meeting Document : WG-FSA-02/65 : Автор(ы): G. Duhamel and J. Claudet (France)

5. EVALUATION OF VME TAXA MONITORING BY OBSERVERS FROM FIVE VESSELS IN THE ROSS SEA REGION ANTARCTIC TOOTHFISH LONGLINE FISHERIES DURING THE 2008-09 SEASON

   Abstract:  Conservation Measure 22-07 (2008) requires vessels fishing in the Ross Sea region (and ... materials; stylasterids and gorgonians. Errors in other groups indicated the observers did not always record ... ). Relatively large differences between vessels in how VME taxa bycatch were recorded are noted, along with ... in terminology in how data were recorded in logbooks were noted and alternatives described. Updates ...

   Meeting Document : TASO-09/08 : Автор(ы): Carter, M., Parker, S.J., Mormede, S., Tracey, D.M.

6. ADDRESSING UNCERTAINTY OVER THE IMPORTANCE OF ANTARCTIC TOOTHFISH AS PREY OF SEALS AND WHALES IN THE SOUTHERN ROSS SEA: A REVIEW

   (Dissostichus mawsoni) as prey of top predators in the Ross Sea. We reviewed the literature to assess the ... been detected in scat or stomach samples; biochemical samples have been taken only from seal ... -breeding seals in McMurdo Sound take 0.8-1.3 toothfish per day. Seals with video recording equipment were ... estimated that the non-breeding portion of the seal population in McMurdo Sound, during spring and summer ...

   Meeting Document : WG-EMM-08/22 : Автор(ы): D. Ainley and D. Siniff (USA)

7. Evaluating length-frequency data and length-based performance indicators in new and exploratory fisheries

   Abstract:  Length-frequency data are routinely collected in CCAMLR’s fisheries and used as inputs ... to stock assessments. In CCAMLR’s new and exploratory fisheries, stock assessment techniques are ... still in development and robust conclusions on stock status based on length-frequency data alone have ... been difficult. In this paper, we show that length-frequency data on their own have little inherent ...

   Meeting Document : WG-FSA-10/43 : Автор(ы): P.E. Ziegler, D.C. Welsford and A.J. Constable (Australia)

8. A false positive in the CCAMLR tag overlap statistic arising from low catch volume and consequent limited sample size

   Abstract:  The draft CCAMLR compliance report has recorded that when fishing in Subarea 88.2 in ... minimum of 60% as specified in CM 41-01. A review of the data indicates that the number of fish tagged was ... of fish tagged did not match closely with that of the catch resulting in a the overlap statistic, as ... as this and others if they have arisen, to determine how to provide advice to the Commission in cases ...

   Meeting Document : WG-FSA-14/31 : Автор(ы): C. Darby (United Kingdom)

9. “Sailbuoy for krill” – a concept for autonomous commercial and scientific monitoring of the krill fishing in Antarctica

   Abstract:  Science based management of krill suffers from limitation of time-space information in ... distribution dynamics. Similarly, the industry burns unnecessary amounts of oil in long range searching of ... fishable biomass due to lack of density distribution information. In this paper, we demonstrate that new ... – science partnership in collecting environment and krill distribution data independent of vessel ...

   Meeting Document : WG-EMM-18/15 : Автор(ы): O.R. Godø, G. Pedersen, D. Peddie, G. Skaret, A. Lowther, F. Grebstad and A. Lohrmann

10. Proposal for a skate tagging program in the Ross Sea region to estimate the local biomass trend for starry skates (Amblyraja georgiana)

    hence we recommend that a 2-year skate tagging programme in the Ross Sea region be used to provide ... for skates in the Ross Sea region, we summarise skate catch and mark-recapture data through the 2016 ... biomass. Much of the A. georgiana catch occurs in SSRUs 88.1H and 88.1I in an area remaining open to ... fishing with respect to the Ross Sea region Marine Protected Area. For consistency in comparisons, we use ...

    Meeting Document : WG-FSA-18/38 Rev. 1 : Автор(ы): S. Parker and M. Francis

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