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1. Joinville–D’Urville Islands (Subarea 48.1) – a former fishing ground for the spiny icefish (Chaenodraco wilsoni), at the tip of the Antarctic Peninsula – revisited

   Paper Title:  Joinville–D’Urville Islands (Subarea 48.1) – a former fishing ground for the spiny ... Expedition ANT XIX/3 by RV Polarstern in February 2002. Five hauls were conducted north of the two islands at ... depths of 149 to 282 m on 21 February 2002. Published and unpublished reports from fishing operations in ... fishing was primarily dependant on whether and to what extent the target species of the fishery, the spiny ... two concentrations of C. wilsoni at 62°20’–62°30’S 55°30’–56°00’W in the northern part of the shelf ... the west. Two- to four-year-old fi sh lived pelagically at 20–120 m over depths of 200–400 m ... Polarstern in February 2002. Five hauls were conducted north of the two islands at depths of 149 to 282 m on ... was in the order of 18 to 22 m. Net height was dependant on whether two- or four-panel bottom trawls ...

   Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 1–20 : Autor(es): Kock, K.-H., L. Pshenichnov, C.D. Jones, K. Shust, K.E. Skora and Zh.A. Frolkina

2. Estimation of effective sample size for catch-at-age and catch-at-length data using simulated data from the Dirichlet-multinomial distribution

   parameter. The remaining two estimators based on haul-level frequencies are derived from models for the ... , including a method based on an approximate profile maximum likelihood estimate (PMLE) of the D-M dispersion ... empirical coefficient of variation (CV) in the proportions, with one being based on an existing CV model ... gave accurate estimators of an ESS that is appropriate for haul-level heterogeneity with increasing ... for the empirical coefficient of variation (CV) in the proportions, with one being based on an ... externally via the above method and aver- aged across years to give an updated estimate of n’. This two-step ... sampling of the population age structure. For each of the 20 years in a replicate, catch-at- age ... about a mean of 100 000 with CV (cR) of 0.6 with an initialisation period of 50 years (i.e. the 20 ...

   Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 115–138 : Autor(es): Candy, S.G

3. Exploratory fishing for Dissostichus spp. in the Antarctic region (Subareas 48.1, 48.2 and 88.3)

   Paper Title:  Exploratory fishing for Dissostichus spp. in the Antarctic region (Subareas 48.1 ... , 48.2 and 88.3) Abstract / Description:  During February and March 1998, a 43-day cruise on FV Tierra ... system) were used for the operation, with variable quantities of fish hooks (1 440 to 4 320), No. 9 ... /hook (Subarea 88.3), 19.1 g/hook (Subarea 48.1) and 3.0 g/hook (Subarea 48.2), and an average over all ... occurs. The search for new fishing areas will have an impact on present and future fisheries for D ... ), Exploratory fishing for Dissostichus spp. which is required in the CCAMLR Convention Area. Two research ... set to fish on or near the bottom. All Dissostichus spp. caught were measured for total length (TL ... Antarctic Peninsula. An absence of abrupt and irregular bottom topography was also observed on the ...

   Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 1–17 : Autor(es): Arana, P.M. and R. Vega

4. A simulation study of the method of deriving natural mortality rate using data for Champsocephalus gunnari in Subarea 48.3

   Paper Title:  A simulation study of the method of deriving natural mortality rate using data for ... mortality, based on the construction of a regression between the rate of annual fishing mortality ... been correctly chosen. Data for Champsocephalus gunnari in Subarea 48.3 are used to show that the ... the value of 0.35 used by the Working Group on Fish Stock Assessment (WG-FSA) in previous years. In ... Frolkina and Dorovskikh, 1990). Age composition of the catches, Ca.)!, for a series of years and ... =e {.y- an .

   for a> 0, Wa,y = WO,y = wl/2,y for a ... it was better to use real data from the fishery for this purpose and as an example the C. gunnari ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 69–83 : Autor(es): Gasyukov, P.S. and R.S. Dorovskikh

5. Spatial distribution of management measures, Antarctic krill catch and Southern Ocean bioregions: implications for conservation planning

   Ocean bioregions: implications for conservation planning Abstract / Description:  Systematic ... conservation planning for developing marine spatial protection includes analysis of the spatial distribution of ... . The analysis required standardised information on the location and extent of spatial fisheries ... season, 64% of the CAMLR Convention Area was open to fishing for at least one species. There were ... biore- gion defined on the basis of long-term (up to 30 years) averages of time series (Grant et al ... Raymond and an anony- mous referee for constructive comments on this paper. References Ardron, J.A., H.P ... order for such information to be incorporated into MPA planning on a scientific basis, it must be ... bioregionalisa- tion as an indicator of habitat, and catch data for Antarctic krill, Euphausia superba ...

   Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 1–19 : Autor(es): Grant, S.M., S.L. Hill and P.T. Fretwell

6. The ecosystem approach to managing fisheries: achieving conservation objectives for predators of fished species

   fisheries impact incidentally on an ecosystem, (ii) what should be the conservation objectives for predators ... Paper Title:  The ecosystem approach to managing fisheries: achieving conservation objectives for ... in its infancy. A general approach is proposed for maintaining ecological relationships and providing ... for the recovery of depleted populations in food webs supporting fisheries. This paper addresses the ... fisheries impact incidentally on an ecosystem, (ii) what should b e the conservatio~l objectives for ... , iiicludiiig the potential for flow-on effects in the food web. Thus, what would be an operational objective ... 20-30 years, wl~ich is the critical period over which the system should not be irreversibly changed ... years (see text for details). Year Figure 7: Individual productivity for each predator in the trial ...

   Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 37–64 : Autor(es): Constable, A.J

7. CCAMLR ecosystem monitoring and a feedback management procedure for krill

   Paper Title:  CCAMLR ecosystem monitoring and a feedback management procedure for krill Abstract ... Ecosystem Monitoring Program might be incorporated into a feedback management strategy for this fishery ... management should be developed for the krill fishery (CCAMLR, 1991 .: paragraph 4.9). The Working Group on ... alter conservation measures based on options in Article IX of the CCAMLR Convention and dictated by the ... , Article IT can be translated, in the case of the predators, to ask the general question "Will fishing for ... relationships as described in Article 11. As a result, the goals in predator protection for the kriU fishery ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 345–350 : Autor(es): Constable, A.J.

8. Standardization of fishing effort for Champsocephalus gunnari in the South Georgia area (Subarea 48.3)

   Paper Title:  Standardization of fishing effort for Champsocephalus gunnari in the South Georgia ... inflexible in its use of data types and has no estimate of accuracy. A standardized CPUE index for ... different classes (countries, types of vessel, fishing gear, months and years). Multiple regression is used ... the values selected to standardize the model. The mean coefficient of variation for the CPUE values ... data since 1981/82 could be used. However, it should be noted that for the first two years of this ... estimates for the first two fishing seasons used for calculations is especially noticeable on the graph ... effort for a number of years of fishing are used as additional information (Pope and Shepherd, 1985 ... category, one may calculate standardized values of catch-per-effort for a sequence of fishing years and ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 327–336 : Autor(es): Gasiukov, P.S.

9. The utilization of seabird censuses for krill monitoring

   databases, calling for international cooperation on the subject. File:  16-Marschoff-et-al.pdf ... Paper Title:  The utilization of seabird censuses for krill monitoring Abstract / Description ... correspondence analysis. Contour plotting, profile analysis and tests for equality of covariance matrices proved ... technique will allow the discrimination of krill levels by means of bird counts thereby providing an ... providing an efficient tool for statistical tests of significance. The most promising approach seems to be ... with greater databases, calling for international cooperation on the subject. Est exploree la ... mentioned species are more or less suitable for direct observation, at the present state of the art it is ... sample the same spot under the same conditions in two consecutive years. Moreover, other parameters ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 393-425 : Autor(es): Marschoff, E.R., J.G. Visbeek and L.R. Fontana

10. 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

    obtained using proportions-at-length and fishery- and year-specific age–length keys (ALKs) for years 1998 ... in R, based on alternative ordinary differential equations (ODE) for within-year population dynamics ... directly from the estimates of population numbers-at-age. The properties of these two models for estimation ... Paper Title:  Estimation of natural mortality for the Patagonian toothfish at Heard and McDonald ... used for the Antarctic toothfish was also 0.13 y–1, where this value was based on an analysis of ... along with two methods of applying an effective sample size. The estimation for these ver- sions of the ... 10 15 20 25 2008 Observ ed Fitted Age (years) (a) Age (yrs) P ro po rti on s 0.0 0.1 0.2 ... fishery- and year-specific age–length keys (ALKs) for years 1998 to 2008. A large proportion of the ...

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

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