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1. 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 : Автор(ы): Ziegler, P.E., D.C. Welsford and A.J. Constable

2. 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 : Автор(ы): Candy, S.G.

3. Status of the coastal stocks of Dissostichus spp. in East Antarctica (Divisions 58.4.1 and 58.4.2)

   operating off the coast of East Antarctica (30°E–150°E; FAO/CCAMLR Divisions 58.4.1 and 58.4.2) since 2003 ... with the Ross Sea, where an analytical assessment has been possible for several years, and through ... (only five where time at liberty was a year or more). These recaptures were inconsistent with ... 58.4.2. Fishing years extend from 1 December of the previous year to 30 November of the named year ... years was virtually in the same place each year (Appendix 2, Figures 2.1(g, h and i)). Fish could ... . have been operating off the coast of East Antarctica (30°E–150°E; FAO/CCAMLR Divisions 58.4.1 and ... for several years, and through analysis of local depletion events. Results indicated SSRU vulnerable ...

   Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 71–100 : Автор(ы): Agnew, D.J., C. Edwards, R. Hillary, R. Mitchell and L.J. López Abellán

4. 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 : Автор(ы): Tixier, P., N. Gasco, G. Duhamel, M. Viviant, M. Authier and C. Guinet

5. 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 : Автор(ы): Shuford, W.D. and L.B. Spear

6. Krill biomass in Area 48 and Area 58: recalculations of FIBEX data

   3S'W 30'W 2S'W 20'W 1S'W r-------------------------~------------~------t_SO'S ...... 00 '1 ... ) 30'W 2S'W 20'W Figure 1: FIBEX survey areas and CCAMLR statistical sub areas in the West Atlantic ... -- --, ",,' -j 20'[ 30'[ .to'[ 50'E Agu(hos, Norlon DuPresne, Kalyo Noru and Nel 10 Don HERCATOR ... ~--~--~--~--~--~----~--~--~--~~ 20 25 30 35 40 45 50 55 60 65 70 Length (mm) Figure 3: Relationship between krill target strength ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 157–181 : Автор(ы): Trathan, P.N., D.J. Agnew, D.G.M. Miller, J.L. Watkins, I. Everson, M.R. Thorley, E. Murphy, A.W.A. Murray and C. Goss

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

   median pre-exploitation level over a 20 year period of harvesting should equal 10%. The value of, λ ... for the calculations is that the probability that the krill spawning biomass drops below 20% of its ... the following 20 years, is that from a single pre-exploitation biomass survey. No account is taken of ... -exploitation level over a 20 year period of harvesting should equal 10%. The value of 'A, depends strongly on ... size drops below 20% of its average value prior to exploitation, over a 20 year period of harvesting ... DYNAMICS MODEL . The numbers of lain of age a years at the start of "year" y (Ny,a) are governed by the ...

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

8. On the power to detect changes using the standard methods for monitoring parameters of predatory species

   ) to compute the requisite sample sizes for detecting changes of 10%, 20% and 30% of the mean value ... sample sizes for detecting changes of 10%, 20% and 30% of the mean values are shown in Table 2. No ... detect changes of 10%, 20%, and 30% of the mean values for Adelie and chinstrap meal size (Table 6 ... %) 119 96 72 46 2.48 (20%) 31 25 1 9 1 3 3.72 (30%) 1 5 1 2 9 7 For Cl = 0.10: 1.24 (10%) 99 79 57 ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 377–397 : Автор(ы): Boveng, P. and J.L. Bengtson

9. Some thoughts on precautionary measures for the krill fishery

   spawning biomass dropping below 20% of its pre-exploitation median level over a 20-year harvesting period ... is 10%; and the median krill escapement1 in the spawning biomass over a 20-year period is 75% of ... , leading to more precise conservation measures. Article I1 of the CCAMLR Convention requires that ... /81 season, over a decade ago, which means that with a lifespan of five to seven years, at least two ...

   Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 1–11 : Автор(ы): Everson, I. and W.K. de la Mare

10. A review of the diet and at-sea distribution of penguins breeding within the CAMLR Convention Area (submitted to the 2008 Joint CCAMLR-IWC Workshop)

    does cause birds distress, and in exceptional cases results in death of a study animal, but it is ... N15 gives an indication of the trophic level at which an animal feeds, while δC13 indi- cates primary ... months or years and feathers the period prior to moult. Biodegradable samples (blood or flesh) need to ... be stored in 70% alcohol or frozen at –20°C, but feathers, toenails, eggshell and bone require no ...

    Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 75–114 : Автор(ы): Ratcliffe, N. and P. Trathan

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