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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

   : mean mean c L LZ K L L ¥ -= - (2) where only the mean length Lmean in a sample of fish above ... taken from the assessment in Division 58.5.2 around Heard Island and the McDonald Islands (Table 2 ... catch scenarios (tonnes) 0, 250, 500, 750, 1 000, 2 500, 5 000, 10 000 Simulation specifications ... Table 2: Parameters for Patagonian toothfish (SC-CAMLR, 2009; Candy et al., 2007) population dynamics ...

   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. Biomass of myctophids in the Atlantic sector of the Southern Ocean as estimated by acoustic surveys

   of the Southern Ocean. 2. MA1ERIALS AND METHODS Acoustic surveys for myctophids in the Atlantic ... fish along a cruise track was estimated by means of the formulae: p- Mo N- cr(L) (1) or P- Mo (2 ... density of myctophids (size range within L=5-10 cm) expression (2) was employed, where crkg(L) was ... and 2). They were chiefly distributed between 50 and 350 m depth. In the area surveyed, E ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 417–431 : Author(s): Filin, A.A., K.V. Gorchinsky and V.M. Kiseleva

3. Fishery Report: Exploratory fishery for Dissostichus spp. (TOT) in Subarea 48.6

   1.2 IUU catch ........................................................................... 2 1.3 ... Size distribution of catches ........................................................ 2 2. Stocks ... exploratory. 2. The limits on the exploratory fishery for Dissostichus spp. in Subarea 48.6 are described ... D G A 48.6 48.4 58.4.2 58.4.4 TOT 48.6 2 200 tonnes; final reported catch: 190 tonnes ...

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4. Fishery report: Champsocephalus gunnari South Georgia (Subarea 48.3)

   distribution of the catches.................................................... 2 2. Stocks and areas ... ......................................................................... 2 3. Parameter estimation ................................................................... 2 ... 3.1 Estimation methods ................................................................ 2 ... Acoustic surveys ................................................................... 2 Trawl surveys ...

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

   angle φ (i.e. Demer and Conti, 2003): 12 1 1 2 ( ) ( ) e 4 J (2 cos ) d cos pos j pos i bs ... j r j tilt pos tilt kf a k a κ ρφ γ γ β β - ×= -ò k r r     (1) where km = 2πf ... /cm is the wave number in the medium m with the subscripts 1 and 2 refer- ring to the surrounding ... mass density, ( )2 21 1 2 2 1c cκγ ρ ρ= - related to the compressibility 21/ ( )i i icκ ρ= , 1k ...

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

6. Fishery Report: Champsocephalus gunnari Heard Island (Division 58.5.2)

   Size distribution of the catches .................................................... 2 2. Stocks ... 1973/74 - - 7 525 1974/75 - - 9 710 1976/77 - - 15 201 1977/78 - - 5 166 1989/90 - - 2 1991/92 ... 1 160 2 1999/00 2 916 137 2000/01 2 1 150 1 136 2001/02 2 885 865 2002/03 2 2 980 2 345 2003/04 ... 2 292 78 2004/05 2 1 864 1 851 2005/06 1 1 210 660 2006/07 1 42 1 2007/08 1 220 199 2008/09 1 ...

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7. A hybrid approach to acoustic classification and length estimation of krill

   a fl uid sphere (Johnson, 1977): 44 2 / / 42 / 1/4 4 / 4 / /2 / 1.5 ; 1 1.5 1 ; 1 1.5 1 ... each of the organisms in the dominating sound-scatter volume at the frequency j if f ; • km = (2π/c ... approximately the input/output values: 1 2 44 1 1 2 4 44 2 2 1.5 , 1 2; 1.5 , 2 1 m r r r m r r a k f a ... sharper than the second. The sensitivity of Δfj / fi to afj / fi is given by: 2 4 4 3 / 22 4 4 / 4 ...

   Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 33–58 : Author(s): Azzali, M., I. Leonori and G. Lanciani

8. Revised age and growth estimates for Antarctic starry skate (Amblyraja georgiana) from the Ross Sea

   in the previous study by Francis and Ó Maolagáin (2005). Reader 2 (M.J. Gallagher) developed the ... larger sample size. Reader 2 aged a subset of 100 thorns four times: the first reading was considered a ... of his previous counts. Reader 2’s fourth reading was used as his age estimate. Counting began ... regarded as clear and unambiguous (readability 1 or 2). Within-reader comparison indicated a high pre ...

   Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 211–220 : Author(s): Francis, M.P. and M.J. Gallagher

9. Annual changes in species composition and abundance of myctophid fish in the north of South Georgia (Subarea 48.3), Antarctica, during austral winters from 2002 to 2008

   Agency 2-12-4 Fukuura, Kanazawa-ku, Yokohama Kanagawa, 236-8648 Japan Abstract Species composition ... : 44 34 76 13 2 66 26 10 2 M yc to ph id ae 38 .6 32 .4 67 ... .8 34 .1 9. 1 69 .2 52 .0 E. a nt ar ct ic a 0. 0 5. 9 17 .8 ... 38 .5 11 .8 G . b ra ue ri 2. 3 2. 9 2. 2 0. 0 0. 0 0. 0 0 ...

   Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 155–163 : Author(s): Iwami, T., M. Naganobu, K. Taki and M. Kiyota

10. Fishery Report: Dissostichus eleginoides Heard Island (Division 58.5.2)

    1.2 IUU catch ........................................................................... 2 1.3 ... Size distribution of catches ........................................................ 2 2. Stocks ... 58.5.2 for the 2009/10 season was 2 550 tonnes (CM 41-08) for the period from 1 December 2009 to 30 ... 1995/96 - 297 0 0 0 0 0 0 1996/97 2 3800 0 0 1927 1927 7117 9044 1997/98 3 3700 0 0 3765 3765 4150 ...

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