Résultats de la recherche

1. Areas of seabed within the 500 m isobath around Elephant Island (Subarea 48.1)

   selected Program in the early 1980s. Refinements to d e p t h r anges a r e crucial for t h e des ... . Depth strata have been summed for the whole shelf area and are presented in Table 2 in comparison with ... AHa B npenenax 50-M~TPOB~IX ~ 3 0 6 a ~ A 0 rny611~b1 100 M, a TaKme B npenenax 100-M~TPOB~IX ...

   Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 131–135 : Auteur(s): Kock, K.-H. and U. Harm

2. 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

   survey combined with a number of identification hauls might be the most promising approach to estimating ... ., 1997) with a mouth opening of 18–22 m between the tips of the wings and a net height of 3–4 m in two ... : hauls with large catches tend to occur in small areas that are consistent between years while hauls ... abundance of the species, it is suggested that an acoustic survey combined with a number of identifi cation ... . To estimate the biomass of a range of species with similar precision, one has to assume that the ...

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

3. A preliminary assessment of the stock of the ommastrephid squid Martialia hyadesi in the Scotia Sea based on data from predators

   of two years and a circumpolar distribution, but its biology and ecology are still virtually unknown ... 51 400 tonnes. M. hyadesi probably has a life span of two years and a circumpolar distribution, but ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 479–480 : Auteur(s): Rodhouse, P.G.

4. Alternative methods for determining subarea or local area catch limits for krill in Statistical Area 48

   associated with initial implementation of an alternative are not considered (3) Reliability of the ... adverse impacts on the fishery (e.g., shorter fishing seasons during years with increased ice cover). The ... single year. Then, for the following two years, that subarea would be closed to fishing. For example, if ... requires CCAMLR'S Scientific Committee to provide the Commission with advice on how the 1.5 million tonne ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 237–249 : Auteur(s): Watters, G. and R.P. Hewitt

5. Bias in the estimation of krill yield from using a deterministic formulation of the median unexploited spawning biomass

   . The krill yield model uses a biased estimate of the median pre-exploitation spawning biomass with a ... ). Fishing Season December-February April-September Whole year Runs using the GYM with So estimated ... spawning biomass after 20 and 30 years relative to median So in each run with no fishing was 1.099 and ... April-September 20 3 0 Whole year 20 3 0 0.2 Y y Butterworth et al. (1994) 0.136 0.1 ... median pre-exploitation spawning biomass with a method for correcting this bias in the level of ...

   Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 1–8 : Auteur(s): Constable, A.J. and W.K. de la Mare

6. Length-based assessment for mackerel icefish (Champsocephalus gunnari) at South Georgia

   the given harvest control rule to set a two-year total allowable catch (TAC). One issue is the ... described that removes the problem of cohort determination. A bootstrap technique (consistent with the ... data which, in conjunction with the bootstrapped survey biomass data, yields an estimate of the ... with τ = 1, a 1-year time-horizon, G(λ1,°) = [12.926,17.145), G(λ1,◦)  λ3 = [12.926,15) and so from ... remaining from the previous year is assumed to be taken immediately from the population. 3. The model ... of the first ‘year’. 5. Steps 3 and 4 are then repeated to give the population abundance at the end ... proposed method and the CMIX/GYM procedure was performed for the years 2006 to 2009. For each year, the ...

   Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 129–137 : Auteur(s): Hillary, R.M., C.T.T. Edwards, R.E. Mitchell and D.J. Agnew

7. Assessments of by-catch in trawl fisheries at Heard and McDonald Islands

   Island area could be a combination of (i) limiting the total by-catch in a year to the estimates of long ... regression with the cited mean sizes at age weighted by the numbers at age. Ages less than 3 and greater ... in Table 3, along with estimates for L. squamifrons published by Duhamel and Ozouf-Costaz (1985 ... 4 3 671 4 0 147 5 0 0 1 0 78 1 0 0 4 029 N. rossii Catch Hauls with (kg) > 5% 0 0 31 ... year to the estimates of long-term annual yield, (ii) allowing catches of by-catch species of up to ...

   Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 231–243 : Auteur(s): Constable, A.J., R. Williams and W.K. de la Mare

8. Data on krill (Euphausia superba Dana) consumption by coastal fishes in Division 58.4.2 (Kosmonavtov and Sodruzhestva Seas)

   the Sodruzhestva and Kosmonavtov Seas over many years by the YugNIRO institute. Data obtained from ... mid-water trawls 99.4m, 86.0m, 78/520m, 110/560 and 11O/600m with fine-meshed nets were used (minimum ... under study were divided into sub areas with different biotopes of major species, largely for the sake ... (underwater rises) with high ichthyomass levels, where krill was the main component of fish diets. 309 ... Biomass between Consumption Yearly Kri11 Year P. antarcticum Stock 68° -78Of: and (x 1()6 tonnes ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 305–319 : Auteur(s): Pakhomov, Y.A., V.A. Bibik and V.V. Gerasimchuk

9. Review of length-weight relationships for Antarctic krill

   often collected during laboratory experiments and may be difficult to compare with field data, however ... -calculated to facilitate direct comparison with other published coefficient values. Tables 1 and 2 show ... the same weight. The situation changes throughout the year, i.e., during the annual maturity cycle ... seasonal change in krill weight. For different months (with different dominant adult maturity stages) a 50 ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 145–155 : Auteur(s): Siegel, V.

10. Fishing intensity of the Soviet fleet in krill fisheries in the southern Atlantic (Subareas 48.2 and 48.3)

    tonnes per year (Boyd, 2002b). In comparison with this estimate, the total krill catch in Subarea 48.3 ... area of the grounds, as indicated in Figures 2 and 3, so that they remained in localities with a ... pre-exploitation biomass for that year or about 3% of the total allowable catch (SC-CAMLR, 2001 ... with the maximum monthly krill catch of 62 700 tonnes (July 1988, Table 3). The above considerations ...

    Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 15–35 : Auteur(s): Kasatkina, S.M. and V.F. Ivanova

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