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1. Information Note for the Spatial Management Workshop and WG-EMM

   : 20 minute service 08:00 to 18:30 (no Sunday service). For a route map see here. Tickets cost £2 ... , Cambridge CB3 0ET: CCAMLR Workshop on Spatial Management (WS-SM-18) from 2 to 6 July 2018 and CCAMLR Working ... Group on Ecosystem Monitoring and Management (WG-EMM) from 9 to 13 July 2018. Venue The CCAMLR Spatial ... single, £3 per day for unlimited use. A taxi from Cambridge rail station to BAS costs around £25-30 ...

   Page : Site Section: Meetings

2. The annual random stratified trawl survey in the waters of Heard Island (Division 58.5.2) to estimate the abundance of Dissostichus eleginoides and Champsocephalus gunnari for 2015

   of 2014 and two and a half times that of the long-term average for the survey. The C. gunnari catch ... this year meant that 333 sets of otoliths were collected for L. squamifrons,   499 for C. rhinoceratus ... 2015, with the completion of 163 stations, an additional five stations compared with previous surveys ... . The extra five hauls were part of a redesign of the survey on the main trawl ground which consisted of ...

   Meeting Document : WG-FSA-15/11 : Autor(es): G.B. Nowara, T.D. Lamb and D.C. Welsford (Australia)

3. Marine Ecosystem Assessment for the Southern Ocean (MEASO)

   held in Hobart in early April 2018 (http://www.measo2018.aq/). The conference provided an opportunity ... from the field programmes are also being summarised, based on an open, international survey of ... researchers.  For this survey, an indication of where and when national research programmes have conducted ... Abstract:  A first Marine Ecosystem Assessment for the Southern Ocean (MEASO) is under development ...

   Meeting Document : SC-CAMLR-XXXVII/BG/22 : Autor(es): A. Constable, J. Melbourne-Thomas, R. Trebilco and M. Brasier

4. DEVELOPMENT OF RECOVERY PLANS FOR DEPLETED TOOTHFISH STOCKS IN THE INDIAN OCEAN SECTOR OF THE SOUTHERN OCEAN

   years and then two years later. The surveys should have only low catches in order to not impede recovery ... recovery strategy for Patagonian toothfish on Ob and Lena Banks. Author(s):  D.C. Welsford, A.J. Constable ... Abstract:  Stocks of Dissostichus mawsoni on BANZARE Bank (Division 58.4.3b) and D. eleginoides on ... and commercial fishing and it is likely that they are depleted below the threshold for CCAMLR ...

   Meeting Document : WG-FSA-09/44 : Autor(es): D.C. Welsford, A.J. Constable and J.P. McKinlay (Australia)

5. Estimation of natural mortality for the Patagonian toothfish at Heard and McDonald Islands using catch-at-age and aged mark-recapture data from the main trawl ground

   programmed in R, based on alternative ordinary differential equations (ODE) for within-year population ... of the properties of these two models for estimation of M used simulation. In application to the data ... were obtained using proportions-at-length and fishery and year specific age length keys (ALKs) for ... the model was or was not conditioned on the total numbers caught in each year. Author(s):  S. Candy, D ...

   Meeting Document : WG-FSA-10/41 : Autor(es): S. Candy, D. Welsford, T. Lamb, J. Verdouw and J. Hutchins (Australia)

6. Estimation of natural mortality for the Patagonian toothfish at Heard and McDonald Islands using catch-at-age and aged mark-recapture data from the main trawl ground

   obtained using proportions-at-length and fishery- and year-specific age–length keys (ALKs) for years 1998 ... in R, based on alternative ordinary differential equations (ODE) for within-year population dynamics ... directly from the estimates of population numbers-at-age. The properties of these two models for estimation ... Paper Title:  Estimation of natural mortality for the Patagonian toothfish at Heard and McDonald ... used for the Antarctic toothfish was also 0.13 y–1, where this value was based on an analysis of ... along with two methods of applying an effective sample size. The estimation for these ver- sions of the ... 10 15 20 25 2008 Observ ed Fitted Age (years) (a) Age (yrs) P ro po rti on s 0.0 0.1 0.2 ... fishery- and year-specific age–length keys (ALKs) for years 1998 to 2008. A large proportion of the ...

   Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 29–45 : Autor(es): Candy, S.G., D.C. Welsford, T. Lamb, J.J. Verdouw and J.J. Hutchins

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

   Description / Abstract:  Fishery Report 2017: Exploratory fishery for Dissostichus mawsoni in ... ) in each year are provided. Note: length-frequency distributions are only presented for those years ... (from 1 December 2014 to 30 November 2015). Fishery Report 2017: Exploratory fishery for ... (Macrourus spp.). In 2003, the fishery for Dissostichus spp. in Division 58.4.2 changed to an exploratory ... . eleginoides) caught counting towards the catch limit for D. mawsoni. 2. The current limits on the ...

   Document : Site Section: Publications

8. Direct ageing of Antarctic krill (Euphausia superba) – potential utility of eyestalk sections for age determination

   ) and fall on the line for two and three year old krill. If validated, the technique should allow the ... Abstract:  We outline a method for the direct determination of age in Antarctic krill (Euphausia ... endocuticle layer of the eyestalks and gastric mill in decapod crustaceans. Here we report on a preliminary ... Antarctic Division and examined using the methods outlined in (Kilada et al. 2012). Two analyses are ...

   Meeting Document : WG-EMM-15/45 : Autor(es): C. Reiss (USA), R. Kilada (Canada) and S. Kawaguchi (Australia)

9. Ecosystem modelling for the Antarctic krill fishery

   the Antarctic ecosystem. This species serves as prey for many organisms in the ecosystem and has also ... been the target of an small industrial fishery since the mid 1970s. New quotas have recently been set ... but there is concern that the reduction in krill biomass due tome fishery may have impacts on other ... krill predators such as penguins, seals and whales. In order to evaluate the effects of krill fishing on ...

   Meeting Document : WG-EMM-01/65 : Autor(es): T. Antezana, J. Cornejo, E. Bredesen, P. Faundez (Chile), A.W. Trites and T. Pitcher (Canada)

10. Are penguins and seals in competition for Antarctic krill at South Georgia?

    1989 and 2000. Foraging ranges of the two species showed considerable overlap in both years but the ... consumers of Antarctic krill. In recent years the population of fur seals has increased whereas that of ... macaroni penguins has declined. Both species feed on krill of similar size ranges, dive to similar depths ... greater competition for the prey of macaroni penguins leading to the decline in their population. We use a ...

    Meeting Document : WG-EMM-01/22 : Autor(es): K.E. Barlow, I.L. Boyd, J.P. Croxall, I.J. Staniland, K. Reid and A.S. Brierley (United Kingdom)

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