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1. Growth models for D. eleginoides for the Heard Island plateau region (Division 58.5.2) calibrated from otolith-based length at age data and validated using mark-recapture data

   than 20 years the general trend in the data of length with age did not exhibit obvious asymptotic ... than 20 years the general trend in the data of length with age did not exhibit obvious asymptotic ... fixing the t0 and L? parameters of the VB model to give age zero length of 30 mm and asymptotic length ... model fitted by maximising the VP likelihood. For the 5 to 25 year age range predicted lengths from ...

   Meeting Document : WG-FSA-05/64 Rev. 1 : Author(s): S.G. Candy, T. Lamb, A.J. Constable and R. Williams (Australia)

2. Effects of recruitment variability and natural mortality on generalised yield model projections and the CCAMLR decision rules for Antarctic krill

   based on maximum age. Murphy and Reid (2001) suggested that a value of 1.25 produced the best match ... inputs to the GYM include the CV of the unexploited biomass B0, weight-at-length/age relationships ... . Modelling Antarctic krill: scale, movement, and age-structure. Document WG-EMM-11/43 Rev. 1. CCAMLR ... below 20% of its pre-fishing median level over a twenty-year period, called the ‘threshold ... projections and the CCAMLR decision rules for Antarctic krill Abstract / Description:  The generalised yield ... model (GYM) was used by CCAMLR to establish the precautionary catch limit for the Antarctic krill ... natural mortality rate of 0.8 and recruitment variability generated using a Beta distribution for ... proportional recruitment of krill. In this study, krill sampling data for empirical size frequencies were ...

   Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 81–96 : Author(s): Kinzey, D., G. Watters and C.S. Reiss

3. e-cc-xiii-a5.pdf

   ... and escorting it to port. Request from Poland for Exemption from Conservation Measure 30/X 1.8 Last year ... noted that the measure was passed two years ago, and recommended the Government of Poland to urge its ... that the report of the above-mentioned observer should be reviewed at its next meeting. The report shall ... no objections to any Measures and, in accordance with Article IX 6(b) of the Convention, they became binding ... possibility of granting an exemption from Conservation Measure 30/X for one Polish krill trawler until the ... to continue to chair the Committee for an additional year. The Committee should now elect a new ... vessel and escorting it to port. Request from Poland for Exemption from Conservation Measure 30/X 1.8 ... Last year the Delegation of Poland proposed that the Commission amend Conservation Measure 30/X in application/pdf attached to:SCOI-94

   Meeting Report : SCOI-94

4. e-sc-xxiv-a4.pdf

   ... -dependent IMP. A number of growth trajectories were generated starting from an age 1+ mean length ... for different scenarios of winter and spring growth. The models indicate that, allowing for shrinkage, age ... Group agreed that this subitem should remain on the agenda for next year’s meeting. 1.6 The meeting ... 4, paragraph 6.13) and the Scientific Committee (SC-CAMLR-XXIII, paragraphs 3.86 to 3.90) agreed ... trajectories were generated starting from an age 1+ mean length for different scenarios of winter and spring ... Working Group agreed that considerable progress had been made this year sufficient for it to believe that ... program for archiving with the Secretariat. The Secretariat will develop an index based on this series ... years after ENSO events in the Pacific, lead to a reduction in pup production in the following year application/pdf attached to:WG-EMM-05

   Meeting Report : WG-EMM-05

5. Is the attempt to estimate the biomass of Antarctic fish from a multi-species survey appropriate for all targeted species? Notothenia rossii in the Atlantic Ocean sector – revisited

   , Hobart, Australia: 30 pp. Barrera-Oro, E.R. and R.J. Casaux. 1992. Age deter- mination of juvenile ... in the area. CCAMLR Science, 7: 43–52. Burchett, M.S. 1983. Age and growth of the Ant- arctic fi sh ... (1): 58–64. Freytag, G. 1980. Length, age and growth of No tothenia rossii marmorata Fischer 1885 ... . Age determination of Antarctic fi sh. Cybium, 1980 (8): 7–11. Parkes, G.B. 1991. The UK fi sh stock ... appropriate for all targeted species? Notothenia rossii in the Atlantic Ocean sector – revisited Abstract ... already heavily fished at the beginning of the 1970s. The closure of the fishery for this species in 1985 ... to provide more accurate estimates of the abundance of the species, it is suggested that an acoustic ...

   Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 141–153 : Author(s): Kock, K.-H., M. Belchier and C.D. Jones

6. WG-SAM-09

   AND MCDONALD ISLANDS USING CATCH-AT-AGE DATA AND TWO YEARS OF SURVEY ABUNDANCE-AT-AGE DATA S.G. Candy ... OTOLITH-BASED AGEING OF THE PATAGONIAN TOOTHFISH (DISSOSTICHUS ELEGINOIDES) FOR THE HEARD AND MCDONALD ... VARIATION AND RANDOM READER ERROR INTO CALCULATION OF EFFECTIVE SAMPLE SIZE IN THE APPLICATION OF AGE LENGTH ... KEYS TO ESTIMATION OF CATCH-AT-AGE PROPORTIONS S.G. Candy (Australia) WG-SAM-09/09 UPDATE ...

   Meeting

7. Identifying taxonomic groups vulnerable to bottom longline fishing gear in the Ross Sea region

   approached 30 years of age (Miller et al., 2004). Stylasterids can be large, up to 1 m in height in Alaska ... Rhabdocalyptus dawsoni in a British Columbia fjord, extrapolated to 220 years of age for large speci- mens ... m near the Bahamas was aged using amino acid com- position at 250 years, which conflicted with a radi ... - ocarbon age estimate of 1 800 years (Goodfriend, 1997). Subsequently, several specimens have been shown ... the fishery being assessed. New Zealand identified an interim list of taxa to monitor in fishery by ... -catch in the Ross Sea as part of its benthic fisheries impact assessment. The rationale for including or ...

   Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 105–127 : Author(s): Parker, S.J. and D.A. Bowden

8. Distribution of mackerel icefish (Champsocephalus gunnari) (Channichthyidae) around South Georgia at various stages of its life cycle

   into account the spatial–temporal variability of C. gunnari. Young fish of the first age group (<15 cm ... of C. gunnari. Young fish of the first age group (<15 cm in length) were mainly found in the southern part ... and northwest. Until they reach three years of age (at a length of about 25 cm) these groups remain ... in age–length distribution and mean length of 2- to 4-year-old fi sh in the western and Shag Rocks ... Shag Rocks. As a rule, this species is not fi shed commercially until it reaches three years of age ... ; rarely at the age of 2 years. The age–length distribution for all years of observation showed ...

   Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 49–69 : Author(s): Frolkina, Zh.A

9. Sensitivity investigation of the SDWBA Antarctic krill target strength model to fatness, material contrast and orientation

   . In this study, the SDWBA TS pattern and frequency response behaviours at standard survey frequencies and animal ... and the distribution of animal orientations. Due to the high variability of TS to realistic changes in parameters ... at standard survey frequencies and animal lengths are explored via a sensitivity analysis of some important ... the organism and the surrounding seawater and the distribution of animal orientations. Due to the high ... of the new SDWBApack­ age2010 was evaluated using sensitivity tests of some parameters with regard to krill ... no ta tio n in t hi s pa pe r (S ym bo l) an d SD W B A pa ck ag e2 00 50 60 3 al ... go rit hm . C la ss Pa ra m et er Sy m bo l Pa ck ag e va ria bl e U ni ... ag e2 00 50 60 3 an d di gi tis ed M cG eh ee e t al . (1 99 8) sh ap e vo lu ...

   Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 97–122 : Author(s): Calise, L. and G. Skaret

10. Scientific Observer's Manual – Finfish Fisheries – Version 2023

    , if skates are sampled for vertebrae and thorns, the maturity stage is helpful to determine the age ... and in sound detection. The use of otoliths for ageing is especially important when scales, the other ... important hard part used for ageing, are either absent (as in Channichthyids) or lost from the fish ... , cataloguing and ageing of otoliths is agreed upon in the bilateral arrangement between Designating ... Manual for Finfish Fisheries contains guidance on standard tasks and requirements for observers as well ... as supplementary information to aid data collection requirements for toothfish (Dissostichus spp ...

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