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1. The gentoo penguin as a candidate species for the CCAMLR Ecosystem Monitoring Program

   Paper Title:  The gentoo penguin as a candidate species for the CCAMLR Ecosystem Monitoring ... years at Bird Island, South Georgia and at the South Shetland Islands (both within Integrated Study ... supporting literature) that the gentoo penguin meets the specified criteria qualifying species for inclusion ... features of special relevance to the CEMP. File:  30-Croxall-and-Williams.pdf ... WG-CEMP-90/14 THE GENTOO PENGUIN AS A CANDIDATE SPECIES ... FOR THE CCAMLR ECOSYSTEM MONITORING PROGRAM IP. Croxall and T.n. Williams* Abstract Based on ... dietary and other biological information collected over several years at Bird Island, South Georgia and ... penguin meets the specified criteria qualifying species for inclusion in the CEMP. The extensive ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 483–488 : Autor(es): Croxall, J.P. and T.D. Williams

2. A risk-management framework for avoiding significant adverse impacts of bottom fishing gear on Vulnerable Marine Ecosystems

   Paper Title:  A risk-management framework for avoiding significant adverse impacts of bottom ... , closed areas around identified VMEs, open and closed management areas, by-catch limits for VME-forming ... organisms, gear modification or spatial distribution of fishing effort. (iv) Review. All of the above steps ... information is not known, as is the case for VMEs in the Southern Ocean, an appropriate spatial scale for ... species extirpated. 50–90 Years–decades 5 Catastrophic Complete loss of ecosystem. All species ... Likely (5) 0 5 10 15 20 25L ik el ih oo d Almost certain (6) 0 6 12 18 24 30 Martin-Smith 184 ... - cautionary approach of CCAMLR (see Constable et al., 2000 for review) will result in the likelihood of ...

   Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 177–193 : Autor(es): Martin-Smith, K

3. A simple approach for calculating the potential yield of krill from biomass survey results

   for the calculations is that the probability that the krill spawning biomass drops below 20% of its ... median pre-exploitation level over a 20 year period of harvesting should equal 10%. The value of, λ ... Paper Title:  A simple approach for calculating the potential yield of krill from biomass survey ... results Abstract / Description:  Estimates are calculated for the parameter λ in the yield equation Y = λ ... (A.2), for "years" y = 2 to 11. Thus, by "year" y = 10, all memory of the initial deterministic age ... model for the length of kriU of age (a+t) years may be written: 208 { .e .. [ 1-e -(3(a+ot)] .e ... DYNAMICS MODEL . The numbers of lain of age a years at the start of "year" y (Ny,a) are governed by the ... "year") is accordingly: 7 Bsp(Y) = L wa Ny,a (A.5) a=am where am is the age-at-maturity for ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 207–217 : Autor(es): Butterworth, D.S., A.E. Punt and M. Basson

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

   Paper Title:  Spatially explicit population dynamics models for Antarctic toothfish in the Ross ... dynamics of spatial heterogeneity of the population along with age structure, movement and reproductive ... stage transition in a holistic framework. Using this software, three spatially explicit age-structured ... models were developed for the Antarctic toothfish (Dissostichus mawsoni) population in the Ross Sea ... to fitting them in the model) were assumed at an effective sample size of 30 for catch-at-age ... 5 10 15 20 25 30 Age (years) 1.0 0.8 ... defined as an age- based logistic ogive for the entire fishery, with parameters estimated by the model ... - cies for the catch from each spatial cell, and mul- tiplied by an annual (unsexed) age–length key from ...

   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. Fishery Report 2017: Exploratory fishery for Dissostichus eleginoides in Division 58.4.3a

   Description / Abstract:  Fishery Report 2017: Exploratory fishery for Dissostichus eleginoides in ... ) in each year are provided. Note: length-frequency distributions are only presented for those years ... was an exploratory fishery for Dissostichus spp., however, in order to better align the target ... Japanese-flagged vessel using longlines, one French vessel fished. 2 5. For 2018, one vessel ... , biomass estimation phase and assessment development phase, with a set of decisions and review for the ...

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6. A proposed management procedure for the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity

   catches made. An MP with control parameter values specified is proposed for implementation based on the ... results of the trials. Given the importance of an adequate catch rate for the economic viability of the ... Paper Title:  A proposed management procedure for the toothfish (Dissostichus eleginoides ... ‘Optimistic’, ‘Intermediate’, ‘Less Pessimistic’ and a ‘Pessimistic’ current status for the resource are ... following proce- dure: 1. Numbers-at-age ( ',y aN ) for the start of the year in which projections ... Bsp over the 20-year pro- jection period falling below 50% of Ksp is zero for the Optimistic and the ... numbers-at-age for the first seven years are allowed to fluctuate, where these fluctuations are ... years (i.e. 2008, 2009, etc. for year y’), the generated longline CPUE abundance indi- ces and longline ...

   Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 33–69 : Autor(es): Brandão, A. and D.S. Butterworth

7. Fishery Report 2017: Closed fishery for Dissostichus spp. in Divisions 58.4.4a and 58.4.4b

   Description / Abstract:  Fishery Report 2017: Closed fishery for Dissostichus spp. in Divisions ... 2004 (Table 1). In 2010, the last year in which IUU catch was recorded, an estimated 80 tonnes was ... developed a framework for designing and undertaking research fishing designed to lead to an assessment of ... development phase, with a set of decisions and review for the progression between stages. 10. In order to ... samples of length, weight, sex and maturity stage, as well as collection of otoliths for age ...

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8. Options for allocating the precautionary catch limit of krill among small-scale management units in the Scotia Sea

   Paper Title:  Options for allocating the precautionary catch limit of krill among small-scale ... management units in the Scotia Sea Abstract / Description:  Following an assessment of Antarctic krill ... catch limit for krill among the SSMUs so as to preclude the inadvertent concentration of catches in a ... small portion of the surveyed area. Five options for allocating the catch limit among the SSMUs in the ... 3 0 20 40 60 80 100 Krill biomass density (g m-2) A 1 st an d ar d d ev ia te y ... R2 = 0.1163 -3 -2 -1 0 1 2 3 0 20 40 60 80 100 Krill biomass density (g m-2) A 2 st an d ... standing stock less predator demand for an SSMU is less than zero, then no catch limit would be allowed ... ut h G eo rg ia W es t ( SG W ) 0. 03 20 10 1 0. 59 59 18 89 0. 02 53 80 ...

   Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 81–97 : Autor(es): Hewitt, R.P., G. Watters, P.N. Trathan, J.P. Croxall, M.E. Goebel, D. Ramm, K. Reid, W.Z. Trivelpiece and J.L. Watkins

9. Fishery Report: Exploratory fishery for Dissostichus spp. in Subareas 88.1 and 88.2

   882CDFG 214 216 34 20 50 0 80 2 882E 361 350 58 30 50 0 20 11 * Note: Includes skates landed, and ... single ALK for each sex using otolith ages from all available years was used to construct annual age ... years and 133.2 cm and for the mean age- and length-at-50%-maturity for males were 12.8 years and 120.4 ... for each year to produce catch-at-age distributions (WG-FSA-09/36). In SSRU 882E, otoliths were only ...

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

    S.G. Candy (2007) an assessment strategy evaluation framework for testing the Application of a CASAL ... . CCAMLR Science 11:59-80. Candy S.G. (2006) Estimating fishing gear selectivity for trawlers using length ... 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 ...

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