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1. Towards an initial operational management procedure for the krill fishery in Subareas 48.1, 48.2 and 48.3

   year, depending on how many of the previous three years' CPUE values fall below a target level of ... prevent the expected lowest biomass of krill over a 20-year harvesting period from falling below 60% of ... for the simulation testing of procedures, and an operational definition of CCAMLR Article II to ... purposes. A provisional operational interpretation of Article II is proposed: the primary objective is to ... ) Average annual catch over 20 years: Cav (objective n.). (ii) Catch in twentieth year: C20• 197 ... the management procedure. TAC in year y. Average annual catch over the first 20 years of operation ... (ill) Biomass after 20 years relative to average unexploited biomass: BzlK. (iv) Lowest biomass ... during 20 years, relative to average unexploited biomass: (BIK)min (objective I.). (v) Average annual ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 189–219 : Autor(es): Butterworth, D.S.

2. Antarctic krill and ecosystem management – from Seattle to Siena

   (2002 – this volume), with the three papers documenting developments during CCAMLR’s first 20 years of ... to be consistent with the objectives of the CAMLR Convention, particularly its Article II. Emphasis ... the three papers documenting developments during CCAMLR’s fi rst 20 years of existence. Résumé Il ... a 20-year period (where Y = yield and B0 = unexploited biomass). Because the model is run many ... exploitation, over a 20-year period of harvesting, should be equal to 10%’. This approach required an ... with the objectives of the CAMLR Convention, particularly its Article II. Emphasis is given to the ...

   Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 175–212 : Autor(es): Miller, D.G.M

3. Archival and satellite-linked data recorders

   recorders are deployed on freely swimming animals and gather data on aspects of an animal’'s diving ... animal of interest and subsequently recovered together with the stored data, and Satellite-linked ... aspects concernant la conduite de plongee d'un animal. Les enregistrements peuvent etre recuperes de ... sobre los aspectos del comportamiento de zambullida de un animal. Los registros pueden ser recuperados ... Recorders, wherein the instrument is attached to an animal and data recovery and/or geolocation are ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 475-493 : Autor(es): Hill, R.D.

4. Chilean krill fishery: analysis of the 1991 season

   20 25 30 35 Fishing day (Starting 20/02/91) Figure 7: Daily average haul depth Cm) during 1991 ... .H--r i+f 111111-, L~~j r 1 TI r I n r o 1 5 10 15 20 25 30 35 Fishing day (Starting 20/02/91 ... "'''''''''''''' ,,,",,,"",,"",,,,,,,,,,,,,,,,,,mrm o 24 25 26 27 28 29 30 31 32 33 34 Fishing day (Starting 20/02/91) Figure 10: Haul-by-haul ... of 1991 season Data: catch per unit effort 15 20 25 30 35 40 45 50 Haullag \- Sectors (1) + (2 ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 273–287 : Autor(es): Marín, V.H., A. Mujica and P. Eberhard

5. Consideration of major issues in ecosystem monitoring and management

   bringing these various components together as an ecosystem approach to management is discussed. File ... 10000 15000 0 10 20 30 40 50 60 70 80 90 100 Year Po pu la tio n si ze Recruitment fails twice ... at random each decade Recruitment normal 50% Survivorship 0 1000 2000 3000 4000 0 10 20 30 ... Recruitment normal Figure 4: The effect of breeding failure and population size. During the fi rst 20 years ... recruitment is randomly distributed between 1 000 and 2 000. From year 20 onwards for two randomly selected ...

   Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 213–232 : Autor(es): Everson, I

6. A preliminary investigation of the possible effects of rhizocephalan parasitism on the management of the crab fishery around South Georgia

   spawning stock is already below its maximum level, even without any harvesting. 0 0 10 20 30 40 50 60 ... - recruit relationship was used. 0 20 40 60 80 100 120 Time (years) Figure 8: Prevalence and spawning ... animals only. The sensitive stock- recruit relationship was used. 0 20 40 60 80 100 120 Time (years ... that an animal is capable of breeding successfully, whereas morphological maturity means that the ...

   Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 175–192 : Autor(es): Basson, M

7. Length-based assessments revisited – why stock status and fishing mortality of long-lived species such as toothfish cannot be inferred from length-frequency data alone

   selectivity functions. 0 10 20 30 40 50 0. 0 0. 2 0. 4 0. 6 0. 8 1. 0 Immature selectivity Age (y ... ) Se le ct iv ity 0 10 20 30 40 50 0. 0 0. 2 0. 4 0. 6 0. 8 1. 0 Truncated mature selectivity ... Age (y) 0 10 20 30 40 50 0. 0 0. 2 0. 4 0. 6 0. 8 1. 0 Mature selectivity Age (y) 2000 2010 ... Reference year 2000 First year of projection 2001 Years to project stock in simulation 60 y Reference ...

   Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 57–73 : Autor(es): Ziegler, P.E., D.C. Welsford and A.J. Constable

8. Estimation of natural mortality using catch-at-age and aged mark-recapture data: a multi-cohort simulation study comparing estimation for a model based on the Baranov equations versus a new mortality equation.

   process error in predicted catch-at-age numbers. Simulations assumed 1 000 releases per year over 12 years ... , using multiple cohorts and multiple years of catch-at-age and aged mark-recapture data was tested using ... obtained by integrating an ordinary differential equation (ODE) for within-year population dynamics. The ... ; constant catch ODE (CCODE) model uses a new total mortality ODE with constant within-year catch per unit ... predicted catch-at-age numbers. Simulations assumed 1 000 releases per year over 12 years with ... time. The initial age structure at the first year of fishing and for subsequent years is obtained by ... fishing years. In order to apply equations (3) and (4) recursively from the start of fishing at year y ... series of YCS, Γ pfy , for the pre-fishery (pf) years combined with the first year of the fishery ...

   Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 1–27 : Autor(es): Candy, S.G.

9. Interactions of Patagonian toothfish fisheries with killer and sperm whales in the Crozet Islands Exclusive Economic Zone: an assessment of depredation levels and insights on possible mitigation strategies

   Islands 0 10 20 30 40 50 60 70 80 90 100 2003/04 2004/05 2005/06 2006/07 2007/08 Fishing ... : Mean interaction rates of killer and sperm whales with longlines between 2003 and 2008. 0 10 20 30 ... 5 10 15 20 25 30 2003/04 2004/05 2005/06 2006/07 2007/08 Fishing season D ep re da tio n ... into pods. A pod is defined as a group of individuals that were seen together on at least 50% of ...

   Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 179–195 : Autor(es): Tixier, P., N. Gasco, G. Duhamel, M. Viviant, M. Authier and C. Guinet

10. Surveys of breeding penguins and other seabirds in the South Shetland Islands, Antarctica, January-February 1987*

    to have been about 40% overall increase in the chinstrap population in the last 20-30 years, about ... Memorandum NMFS Antarctic Marine Living Resources Program (AMLR)) File:  20-Shuford-and-Spear.pdf ... -30 years, about three-fourths of the difference between our counts and previous ones is due to more ... a jugula ire ait augmente globalement d'a peu pres 40% au cours des dernieres 20-30 annees ... 20-30 anos, aproximadamente tres cuartas partes de la diferencia entre nuestros recuentos y los ... rro rrpeAblAYlI\l1M OlleHKaM. XOTH, KaK Ka)KeTCH, 3a rrOCJIeAHl1e 20-30 JIeT o611\ee KOJII1QeCTBO ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 449-451 : Autor(es): Shuford, W.D. and L.B. Spear

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