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1. Preliminary review of Antarctic toothfish maturity in the Ross Sea

   in 2004/2005- 2006/2007 seasons are presented. Morphological indices of females and males, age, indices ... - 2006/2007 seasons are presented. Morphological indices of females and males, age, indices of gonads ... of their large oocytes was 1075- 2331•10-6m in different years. Author(s):  S.V. Piyanova and A.F. Petrov (Russia ... ) Title:  Preliminary review of Antarctic toothfish maturity in the Ross Sea Approval:  Approved ...

   Meeting Document : WG-FSA-11/27 : Author(s): S.V. Piyanova and A.F. Petrov (Russia)

2. A composite recruitment index to describe interannual changes in the population structure of Antarctic krill at South Georgia

   recruitment year due to krill spawned in 1994/95. File:  06watkins.pdf ... in the population increased with a very successful recruitment year due to krill spawned in 1994/95. ... with large krill found offshore and small krill found on the shelf. Such separatio~l of age classes has ... . Age and growth of Antarctic Euphausiacea (Crustacea) under natural conditions. Mar. Biol., 96 ... as the proportion of l + animals in the total population in the year after spawning, R2 as the pro ortion ... . Cruises Year-class Boundaries (mm) 1 + 2+ 3+ 4+ 5+ JB10 - JR17 JR28 All cruises 25-30 33-40 41-48 ...

   Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 71–84 : Author(s): Watkins, J.L

3. CCAMLR-XXVII/19, Annex I

   of relevant information (e.g. SC-CIRC-08/30); an expert workshop to review the information and agree key ... (e.g. SC-CIRC-08/30); an expert workshop to review the information and agree key analytical frameworks ... was held over two days. The workshop reviewed the fishing method in detail, determined a preliminary list ... of potentially vulnerable taxa including additional indicator species and reviewed the fishery effort to date ... corals) Xt 0(90) 1(5) 2(5) 0(0) 1(50) 2(50) 0(0) 1(20) 2(80) 0(10) 1(30) 2(60) –Antipatharia (black ... corals) Long 0(90) 1(5) 2(5) 0(0) 1(60) 2(40) 0(0) 1(20) 2(80) 0(10) 1(30) 2(60) –Alcyonacea (soft ... (gorgonians) Xt 0(90) 1(5) 2(5) 0(0) 1(50) 2(50) 0(0) 1(20) 2(80) 0(10) 1(30) 2(60) –Pennatulacea (sea ... •Anthoathecate: Stylasteridae (hydro corals) Long 0(90) 1(5) 2(5) 0(0) 1(50) 2(50) 0(0) 1(20) 2(80) 0(10) 1(30 ...

   Document : Site Section: Publications

4. ASSESSMENT MODELS FOR ANTARCTIC TOOTHFISH (DISSOSTICHUS MAWSONI) IN THE ROSS SEA FOR THE YEARS 1997–98 TO 2008–09

   Abstract:  We provide an update of the Bayesian sex and age structured population stock assessment ... –B), using revised catch, catch-at-age, and tag-recapture data for the 2008–2009 season. The reference model ... We provide an update of the Bayesian sex and age structured population stock assessment model ... revised catch, catch-at-age, and tag-recapture data for the 2008–2009 season. The reference model ...

   Meeting Document : WG-FSA-09/40 Rev. 1 : Author(s): A. Dunn and S.M. Hanchet (New Zealand)

5. Maximum entropy reconstructions of krill distribution and estimates of krill density from acoustic surveys at South Georgia, 1996–2000

   survey boxes (dimensions 80 km × 100 km) north of South Georgia. The reconstructions were generated from ... 80 km transects in each box, providing about 1 600 density estimates per box. The MaxEnt technique ... of mean krill density within two survey boxes (dimensions 80 km × 100 km) north of South Georgia ... intervals along each of the ten 80 km transects in each box, providing about 1 600 density estimates per box ... drive krill aggregation. This in turn could have implications for understanding predator for- aging ... of krill distribution and estimates of mean krill density within two survey boxes (dimensions 80 km × 100 ... been determined at approximately 0.5 km intervals along each of the ten 80 km transects in each box ... (dimensions : 80 km × 100 km) au nord de la Géorgie du Sud. Les reconstructions sont effectuées à partir de ...

   Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 91–100 : Author(s): Wafy, M.H., A.S. Brierley, S.F. Gull and J.L. Watkins

6. Fishery Report 2016: Exploratory fishery for Dissostichus spp. in Subarea 48.6

   stage, as well as collection of otoliths for age determination of the target and most frequently taken ... to this report is shaded. Throughout this report the CCAMLR fishing season is represented by the year in which ... that season ended, e.g. 2015 represents the 2014/15 CCAMLR fishing season (from 1 December 2014 to 30 ... in the amount and/or the location of those catches (SC-CAMLR-XXXIII, paragraph 3.68). Those years that include ... Description / Abstract:  Fishery Report 2016: Exploratory fishery for Dissostichus spp. in Subarea ...

   Document : Site Section: Publications

7. Zooplankton target strength: volumetric or areal dependence?

   and 1 MHz and the dependence of these data on animal volume versus cross-sectional area was explored The 420 ... normalized by the square of the animal length) versus ka (the product of wave number and equivalent ... cylindrical radius). The theoretical models chosen for this comparison were two versions of a high-pass bent ... -cylinder model (Stanton, 1989b) that indicate TS is dependent on animal volume, and the ray bent-cylinder ...

   Meeting Document : WG-Krill-94/13 : Author(s): D.A. Demer and L.V. Martin (USA)

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

   in years of poor krill availability. Thus natural  ortality of C. gunnari may, in some years, increase ... with increased consumption of C. gunnari by Antarctic fur seals in years of poor krill availability. Thus natural ...   ortality of C. gunnari may, in some years, increase by a large factor (assumed here ... present - years in plus class in initial age structure Number of increments per year Mean annual ... in the past: analysis of research survey results and analysis of commercial catch-at-age using VPA (tuned ... to be scarce, when high values of M could be used. It may also be that the age-distribution of M shifts ... populations. However, unless detailed data on age-specific mortalities were available, it would be sensible ...

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

9. Interannual changes in body fat condition, stomach content mass and distribution of minke whales in Antarctic Areas IV and V

   of minke whales in Antarctic Areas IV (70°-130° E) and V (130° E-170°W) from 1989/90 to 1994/95. Of the six ... years included in the study, two were categorized as years of poor body fat condition, and three ... as years of good condition. Estimated body weight gain during the feeding season in poor years was 25 ... % lower than in good years. The relationship between girth and stomach content mass in the ice-edge zone ...

   Meeting Document : WG-EMM-97/18 : Author(s): Ichii, T., Nishiwaki, S., Tamura, T., Fujise, Y., Matsuoka , K.

10. Assessment models for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea including data from the 2006/07 season

    Abstract:  We provide an update of the Bayesian sex and age structured population stock assessment ... –B), using revised catch, catch-at-age, and tag-recapture data for the 2007 season. The updated reference ... We provide an update of the Bayesian sex and age structured population stock assessment model ... catch, catch-at-age, and tag-recapture data for the 2007 season. The updated reference model resulted ...

    Meeting Document : WG-FSA-07/37 : Author(s): A. Dunn and S.M. Hanchet (New Zealand)

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