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1. Management and assessment options for the crab fishery around South Georgia

   for a conservative approach to management. Such an approach includes the use of catch/effort controls ... Paper Title:  Management and assessment options for the crab fishery around South Georgia Abstract ... / Description:  A new fishery for the lithodid crab, Paralomis spinosissima, started in Subarea 48.3 in 1992 ... . The fishery is also new to CCAMLR, both in terms of the species and fishing gear. We provide an ... and fishing gear. We provide an overview of the management options for crab fisheries in general and ... Convention point to the need for a conservative approach to management. Such an approach includes the use of ... aim to provide an overview of the management options for crab fisheries in general. We then ... exploitable part of the stock. The target for the Alaskan king crab is between 20 and 60% depending on ...

   Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 193–202 : Autor(es): Basson, M. and D.D. Hoggarth

2. A compilation of parameters for ecosystem dynamics models of the Scotia Sea – Antarctic Peninsula region

   Paper Title:  A compilation of parameters for ecosystem dynamics models of the Scotia Sea ... assessment of methods for subdividing the precautionary catch limit amongst smaller spatial units. This paper ... compiles parameters for use in the ecosystem dynamic models that are needed to assess these methods. These ... parameters include life history and krill consumption parameters for the fish, whale, penguin and seal ... mentioned in the text. Boundary area 1 Boundary area 2 Boundary area 3 5 Parameters for Scotia Sea ... P3). An arbitrary value was also used for the adult μ of chinstrap penguins. * , ,k j sQ for ... population structures in Croll and Tershy (1998) (Note P4). An arbitrary 1:1 sex ratio was assumed for the ... . (2006) for females and post-weaning juveniles. ρ for each sex, the maximum breeding age of females ...

   Science Journal Paper : CCAMLR Science, Volume 14 (CCAMLR Science, Volume 14) : 1–25 : Autor(es): Hill, S.L., K. Reid, S.E. Thorpe, J. Hinke and G.M. Watters

3. Factors to consider in developing management measures for krill

   / Description:  A brief review of the objectives of the Convention for the Conservation of Antarctic Marine ... Living Resources is given along with an outline of steps for the evolution of management procedures for ... Paper Title:  Factors to consider in developing management measures for krill Abstract ... MANAGEMENT MEASURES FOR KRILL W.K. de la Mare>l< Abstract A brief review of the objectives of the ... Convention for the Conservation of Antarctic Marine Living Resources is given along with an outline of ... are dependent on krill forms an integral part of objectives of the Commission for the Conservation of ... designation of stocks for management is an integral part of the formulation of management procedures. It ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 175–187 : Autor(es): de la Mare, W.K.

4. Towards the development of a management plan for mackerel icefish (Champsocephalus gunnari) in Subarea 48.3

   for an interim approach to the setting of precautionary catch limits for this fishery. An approach ... Paper Title:  Towards the development of a management plan for mackerel icefish (Champsocephalus ... years of poor krill availability. Thus natural  ortality of C. gunnari may, in some years, increase by a ... and research surveys leading to estimates of stock biomass. An extension of this scheme would use ... therefore a need for an interim approach to the setting of precautionary catch limits for this fishery. An ... process that is expected to take several years. DEVELOPMENT OF A MANAGEMENT PLAN FOR C. GUNNARI The ... problems in years of low krill abundance, consequent dependence for food on another plankton crustacean ... 1978,1984,1991 and 1994 as being poor years for predators (these indices reflect predator performance from ...

   Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 63–77 : Autor(es): Agnew, D.J., I. Everson, G.P. Kirkwood and G.B. Parkes

5. 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

6. 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

7. 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

8. 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

9. 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

10. 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

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