Résultats de la recherche

1. The biology, ecology and development of fishery management advice for the anomuran crabs at South Georgia (CCAMLR Subarea 48.3)

   of the development of a management regime for them. Finally it aims to highlight areas in which ... , baited camera deploy- ments (i.e. Collins et al., 2002; Yau et al., 2002) and a limited number of ... 00 80 –1 4 00 21 4– 1 04 3 64 –1 25 Si ze -a t-m at ur ity (m m ) – m al ... al es (C L/ C W ) 55 .1 /5 7. 1 61 .2 /6 7. 7 A bs ol ut e fe cu nd ity ... w ei gh t t o lo g le ng th a b R – sq n N or m al ♂ –8 .6 6 3. 36 ...

   Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 1–15 : Auteur(s): Belchier, M., T. Peatman and J. Brown

2. Evaluating the impact of multi-year research catch limits on overfished toothfish populations

   may contribute to delaying or preventing the recovery of such stocks. Through simulating a Patagonian ... , and relatively low levels of research catch can significantly delay the recovery of a stock. Scenarios ... assessed in this study indicate that, where a stock has been depleted to at or below 20% of the median ... level where the productivity of the stock is compromised (see Constable et al. (2000) for a ... parameters for a stock, as shown in McKinlay et al. (2008) and Welsford et al. (2009) for BANZARE Bank ... significantly delay recovery of depleted fish stocks (Hammer et al., 2010; Murawski, 2010; Wieden- mann and ... et al., 2007). An S-R relationship remains to be estimated from empirical data for any toothfish ...

   Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 47–55 : Auteur(s): Welsford, D.C

3. Can toothfish catches be used to predict the presence of vulnerable benthic invertebrate taxa?

   rates and benthic invertebrate catch rates at the scale of a longline segment, ~1 200 m. Analysis of the ... predicting Antarctic toothfish (Dissostichus mawsoni) catch at the scale of a longline segment. This supports ... catch at the scale of a longline set, ~7 km. Further studies at intermediate scales (10–100 km) would be ... distributions, showing a high degree of spatial overlap with the fishery. File:  06parker-smith.pdf ... th e pr es en ce ( P) o r ab se nc e (A ) of e ac h m od el le d V M E in di ... ch , p re se nc e in e ac h ar ea , or o bs er ve d on e ac h ve ss el . A X T ... N ot e: V es se l 4 p ro vi de d ob se rv at io ns o n al m os t 1 00 % o f s eg ... -density patches, often described as coral gardens (Hourigan et al., 2007; Parker et al., 2010). If ...

   Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 87–96 : Auteur(s): Parker, S.J. and M.H. Smith

4. Distribution, morphology and ecology of Macrourus whitsoni and M. caml (Gadiformes, Macrouridae) in the Ross Sea region

   identification of a new species of Southern Ocean grenadier, Macrourus caml, which had hitherto been identified ... CCAMLR Subareas 88.1 and 88.2. There was a small but significant increase in the proportion of M ... . caml). Macrourus caml grows slower, reaches a larger size, lives longer and is heavier for a given ... but at a similar age (50% sexual maturity at 16 y). Gonad staging suggests extended spawning periods ... ). Grenadiers are also a major prey species of Antarctic toothfish in the region (Fenaughty et al., 2003 ... or both of these species being a main prey of Antarctic toothfish. Pinkerton et al. 38 al ... extracted from all fish and prepared as thick sections, as recommended by Marriott et al. (2006), using a ... resin embedding technique (Pinkerton et al., 2012b). The sections generally exhibited a regular ...

   Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 37–61 : Auteur(s): Pinkerton, M.H., P. McMillan, J. Forman, P. Marriott, P. Horn, S. Bury and J. Brown

5. Estimation of natural mortality for the Patagonian toothfish at Heard and McDonald Islands using catch-at-age and aged mark-recapture data from the main trawl ground

   :  Attempts to estimate natural mortality, as a single constant M, simultaneously with other model parameters ... to 2008. A large proportion of the recaptures of fish released in this fishery were aged and these ... . These are the BODE model (Baranov ODE) and the CCODE model (constant catch ODE). The CCODE model is a ... to the Baranov equations and does not require a catch equation but removes catch-at-age numbers ... bl e 4: C om pa ris on o f F e st im at ed b y B O D E m od el a nd c al cu ... to the non-M para- meters that converged satisfactorily for each pro- filed value of M. Candy et al ... re le as e fo r t he sa m e ye ar o f r el ea se a nd /o r t ho se re ca pt ur ... la te d fr om o ut pu t o f t he C C O D E m od el . Y ea r o f r el ea se 19 ...

   Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 29–45 : Auteur(s): Candy, S.G., D.C. Welsford, T. Lamb, J.J. Verdouw and J.J. Hutchins

6. Fatty acid and stable isotope analyses to infer diet of Antarctic toothfish caught in the southern Ross Sea

   analysis and conventional diet analysis. Samples were collected during a longline survey of pre-recruit ... evidence that a combination of these two techniques can delineate the main prey items of Antarctic ... Pleuragramma antarcticum, Pogonophryne barsukovi, Dacodraco hunteri and Trematomus loennbergii indicated a ... were higher than those of P. antarcticum, P. barsukovi and T. loennbergii, indicating a higher trophic ... ; Eastman, 1985; La Mesa et al., 2004) and also a key prey species in the southern Ross Sea (Pinkerton et ... of A nt ar ct ic to ot hf is h in th e so ut he rn R os s Se a. V al ue s ar e ... southern Ross Sea. Jo et al. 22 Introduction Antarctic toothfish (Dissostichus mawsoni) is a key ... shelf (La Mesa et al., 2004; references therein). Fenaughty et al. (2003) also found that fish are the ...

   Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 21–36 : Auteur(s): Jo, H.-S., I. Yeon, C. Lim, S.M. Hanchet, D.-W. Lee and C.-K. Kang

7. Low genetic diversity and temporal stability in the Antarctic toothfish (Dissostichus mawsoni) from near-continental seas of Antarctica

   of 50–300 m (Roshchin, 1997; Yukhov, 1982; Near et al., 2003; La Mesa, 2007; Hanchet et al., 2008 ... slope area and nearby islands at a depth between 500 and 850 m (Shust et al., 2005). The third (deep ... R G C R TT G G A G A TG TC 7 C al m od ul in (C aM ) C aM :2 03 A /C C aM ... G A A A C ho w , 1 99 8 Mugue et al. 4 Ta bl e 3: SN P fr eq ue nc ie s f or ...

   Science Journal Paper : CCAMLR Science, Volume 21 (CCAMLR Science, Volume 21) : 1–9 : Auteur(s): Mugue, N.S., A.F. Petrov, D.A. Zelenina, I.I. Gordeev and A.A. Sergeev

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

   (Euphausia superba) fishery. The current precautionary catch limit was based on supplying the GYM with a ... natural mortality rate of 0.8 and recruitment variability generated using a Beta distribution for ... yield model (GYM) (Constable and de la Mare, 1996; Constable et al., 2003). The GYM is a simulation ... (de la Mare, 1994a; Constable and de la Mare, 1996; Peatman et al., 2011; SC-CAMLR, 2011 (Annex 6 ... , 1994b; de la Mare et al., 2002) but produces very similar length- frequency distributions (Figure 2 ... ., A.T. Williamson and W.K. de la Mare. 2003. Generalised Yield Model: User’s Kinzey et al. 90 ...

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

9. Is current management of the Antarctic krill fishery in the Atlantic sector of the Southern Ocean precautionary?

   . There is some evidence for a decline in the abundance of krill in the 1980s, but no evidence of a ... recent years. This suggests that fishing at the trigger level would be equivalent to a long-term ... the risk of adverse impacts which might occur as a result of concentrated fishing in sensitive areas ... ): 282–285. Hill et al. 44 Constable, A.J. and W.K. de la Mare. 2003. Gen- eralised Yield Model ... assessment therefore needs a practical definition of ‘precautionary’. Hewitt et al. (2002) explain Subarea ... Survey was a major international research effort, involving four ships (Watkins et al., 2004; Hewitt et ... decline in the mean numerical density of post-larval krill in the 1980s (Atkinson et al., 2004, 2008). A ...

   Science Journal Paper : CCAMLR Science, Volume 23 (CCAMLR Science, Volume 23) : 31–51 : Auteur(s): Hill, S.L., A. Atkinson, C. Darby, S. Fielding, B.A. Krafft, O.R. Godø, G. Skaret, P.N. Trathan and J.L. Watkins

10. Erratum and Addendum - Modelling catch and effort data using generalised linear models, the Tweedie distribution, random vessel effects and random stratum-by-year effects – CCAMLR Science, 11: 59–80 (2004)

    perfil extendido del parámetro lambda en el GLMM de Tweedie con enlace logarítmico. ... Lambda E xt en de d qu as i-d ev ia nc e 0.5 1.0 1.5 2.0 26 00 00 26 20 00 26 40 00 26 60 ... freedom’, r, was incorrectly specified as 2 2 1 ˆ ˆ iiu r q u σ = - å . The correct formula is 22 1 ... ˆ ˆ iiu r u σ = å (Schall, 1991). The results in Candy (2004) were not affected by this ...

    Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 221–222 : Auteur(s): Candy, S.G

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