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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

   of the population with natural mortality, and knife-edge selectivity. But departure from the steady-state ... was modelled through three knife-edge fishing selectivity functions represent- ing combined gear efficiency ... selectivity function is knife-edged, while the maturity function is not, Pmat includes some immature fish ...

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

2. A first attempt at an assessment of the Patagonian toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands EEZ

   to be knife-edge in age for the base case; for the sensitivity test for Division 58.5.2 the functional forms ...

   Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 11–32 : Author(s): Brandão, A., D.S. Butterworth, B.P. Watkins and D.G.M. Miller

3. An assessment of the mackerel icefish (Champsocephalus gunnari) off Heard Island

   classes other than 3. This shows that recruitment to the fishery was knife-edged at age 3 in the 1997 ... the vector of recruits. In these three trials, selection to the fishery was considered to be knife-edged ...

   Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 79–101 : Author(s): de la Mare, W.K., R. Williams and A.J. Constable

4. Champsocephalus gunnari South Georgia (Subarea 48.3)

   selectivity vector from 2.0 to 2.5 and 2.95 (knife-edge) was examined where all age 1+ fish were included ...

   Document : Site Section: Publications

5. Fishery Report: Champsocephalus gunnari South Georgia (Subarea 48.3)

   4). Selectivity 14. A knife-edge selectivity vector was used for C. gunnari, starting at 2.5 years and fully ...

   Document : Site Section: Publications

6. Fishery Report: Champsocephalus gunnari South Georgia (Subarea 48.3)

   for ages 2+ to 4+ (Table 4). Selectivity 13. A knife-edge selectivity vector was used for C. gunnari ...

   Document : Site Section: Publications

7. Fishery Report: Champsocephalus gunnari South Georgia (Subarea 48.3)

   4). Selectivity 14. A knife-edge selectivity vector was used for C. gunnari, starting at 2.5 years and fully ...

   Document : Site Section: Publications

8. Assessments of the stocks of Notothenia rossii marmorata and Champsocephalus gunnari in the South Georgia area

   If the recruitment to the fishery were a knife-edged process, the estimate of the annual per capita recruitment ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 1-21 : Author(s): Cooke, J.G.

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

   y, and is the (knife-edge) age-at-first-capture. M F(y) ar These equations assume that the number of krin 8 years ...

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

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

    Paper Title:  Towards an initial operational management procedure for the krill fishery in Subareas 48.1, 48.2 and 48.3 Abstract / Description:  An operational management procedure for krill (Euphausia superba) in Subareas 48.1, 48.2 and 48.3 requires a basis for the assessment of resource status,

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

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