Résultats de la recherche

1. Assessing the power to detect systematic change in Adélie penguin foraging trip duration

   variability among years was greater in the guard stage. Estimates of variability were used to explore the ... greater in the crèche stage than the guard stage. The gain obtained by increasing the number of penguins ... Paper Title:  Assessing the power to detect systematic change in Adélie penguin foraging trip ... duration Abstract / Description:  Models of variability in Adélie penguin foraging trip durations were ... have the same meaning as in equation (1). Modelling of the data showed that the assumption of ... in mean duration of foraging trips The consequence of an impact on foraging trip time is presumed ... to result in one of the following changes: (i) a ‘step’ change in which the mean forag- ing trip ... systematic change in mean foraging trip dura- tion in post-impact years, and (iii) the form of post- impact ...

   Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 201–215 : Auteur(s): Southwell, C., J. Clarke and L.M. Emmerson

2. Commercial krill fisheries in the Antarctic, 1973 to 1988

   thereafter. In terms of both catch and effort the Soviet and Japanese krill fisheries in Subareas 48.1, 48.2 ... (April to August). Trends in the fishery with respect to independent estimates of krill abundance and ... :  STATLANT data reported to the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR ... Paper Title:  Commercial krill fisheries in the Antarctic, 1973 to 1988 Abstract / Description ... grounds has resulted in the development of many "unconventional" fisheries (cf Robinson, 1982; Budzinski ... until the 1973/74 season that exploitation of krill could in any way be considered to have been on a ... the major proportion of the annual catches. Gradually increasing catches in Statistical Area 58 ... catches (Figure 9). Similarly, the pattern of both the underlying annual trend in catches and a low 1983 ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 229–281 : Auteur(s): Miller, D.G.M.

3. An assessment of the merits of length and weight measurements of Antarctic krill Euphausia superba

   biological data are assessed in terms of decreases in the residual variance of relationships. We have ... identified key sources of variability where relatively small increases in the effort of analysis result in ... large improvements in the precision of prediction. Surprisingly, the stage of the moult cycle of the ... krill into male and female categories is of little practical use in improving the precision of any ... decreases in the residual variance of relationships. We have identified key sources of variability where ... relatively small increases in the effort of analysis result in large improvements in the precision of ... practical use in improving the precision of any prediction of mass. However, the separation of gravid ... marked improvement in the precision of prediction. Example equations are provided. * In press ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 371-373 : Auteur(s): Morris D.J., J.L. Watkins, C. Ricketts, F. Buchholz, and J. Priddle

4. Some specific features of the USSR krill fishery and possibilities of applying fishery statistics to studies of krill biology and stocks

   to the actual biomass of krill in the place in question. In both cases particular diurnal and long ... Paper Title:  Some specific features of the USSR krill fishery and possibilities of applying ... the USSR krill fishery such as the location of exploited fishing areas and the seasonal regime of ... their exploitation are considered. Using data obtained by the scouting vessel Globus engaged in regular ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 237–252 : Auteur(s): Dolzhenkov, V.N., T.G. Lubimova, R.R. Makarov, S.S. Parfenovich and V.A. Spiridonov

5. Methodological guidelines on the assessment of trawl catchability of krill by means of statistical modelling

   assessment of complex stochastic systems, including the assessment of the effectiveness of trawl nets used in ... of various configurations. The algorithm for solving this problem is constructed in such a way that ... Paper Title:  Methodological guidelines on the assessment of trawl catchability of krill by means ... of statistical modelling Abstract / Description:  This paper offers an approach to the assessment of ... stochastic systems, including the assessment of the effectiveness of trawl nets used in krill fishing ... THE ASSESSMENT OF TRAWL CATCHABILITY OF KRILL BY MEANS OF STATISTICAL MODELLING Z.I.Kizner (U. S ... . S. R.) Abstract This paper offers an approach to the assessment of the relative effectiveness ... of krill fishing gear by means of statistical modelling. The Monte-Carlo method, which is described ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 195-222 : Auteur(s): Kizner, Z.I.

6. The fishery for Patagonotothen brevicauda guntheri in CCAMLR Subarea 48.3

   Paper Title:  The fishery for Patagonotothen brevicauda guntheri in CCAMLR Subarea 48.3 Abstract ... / Description:  Fine-scale data supplied to CCAMLR for 1987/88 showed that the catches of P atagonotothen ... brevicauda guntheri were five times greater in the South Georgia area than at Shag Rocks. Previous survey ... only ever caught at Shag Rocks. Therefore the South Georgia catches were almost certainly of another ... P.b. guntheri fishery are summarised in Tables 2 to 4. The Shag Rocks region of Subarea 48.3 may be ... no reports of P.b. guntheri being taken as by-catch in the krill fishery. 3. DISTRIBUTION OF ... CATCHES The breakdown of catches within the two regions, Shag Rocks and South Georgia is given in Table ... , and are, therefore, almost certainly of some other species. 4. BY-CATCHES IN THE P.B ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 275–283 : Auteur(s): Everson, I. and C. Mitchell

7. Seabird mortality in the Patagonian toothfish longline fishery around Crozet and Kerguelen Islands, 2001–2003

   eleginoides) longline fishery operating in the French Exclusive Economic Zones (EEZs) of Crozet and Kerguelen ... reducing the incidental mortality of the various species concerned in the French EEZs of Crozet and ... Paper Title:  Seabird mortality in the Patagonian toothfish longline fishery around Crozet and ... and relating to fishing techniques) have an effect on the observed numbers of seabirds caught ... shery around Crozet and Kerguelen Islands In 2002/03, the mean number of grey petrels caught in summer ... killed per line is higher in summer (September–April), and the mean number of grey petrels killed per ... (Dissostichus eleginoides) longline fi shery operating in the French Exclusive Economic Zones (EEZs) of Crozet ... of reducing the incidental mortality of the various species concerned in the French EEZs of Crozet ...

   Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 53–80 : Auteur(s): Delord, K., N. Gasco, H. Weimerskirch, C. Barbraud and T. Micol

8. Cephalopod research in the Antarctic

   policy for management of Antarctic cephalopods. In view of the rapidity that cephalopod fisheries can ... Paper Title:  Cephalopod research in the Antarctic Abstract / Description:  Cephalopods are a ... major component of the Antarctic marine food web and it seems inevitable that they will be the subject ... of future commercial exploitation. Research is being carried out at BAS on the species composition ... cephalopods. In view of the rapidity that cephalopod fisheries can develop there is need for co-ordinated ... , south of the Antarctic Polar Front, in the vicinity of South Georgia. There is an expanding world ... of cephalopods as predators and prey in the Southern Ocean ecosystem. - 326 - This paper ... considers the current state of knowledge for each of these topics in order to highlight key areas for ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 323-334 : Auteur(s): Rodhouse, P.G.

9. Identifying taxonomic groups vulnerable to bottom longline fishing gear in the Ross Sea region

   vulnerable marine ecosystems (VMEs) requires a specific list of the taxa that are considered vulnerable in ... the fishery being assessed. New Zealand identified an interim list of taxa to monitor in fishery by ... -catch in the Ross Sea as part of its benthic fisheries impact assessment. The rationale for including or ... Paper Title:  Identifying taxonomic groups vulnerable to bottom longline fishing gear in the Ross ... specific list of the taxa that are considered vulnerable in the fishery being assessed. New Zealand ... identified an interim list of taxa to monitor in fishery by-catch in the Ross Sea as part of its benthic ... guidance in developing a generic de- finition of a VME has been provided by the Fisheries and Agriculture ... in FAO, 2009). However, by using examples instead of a definition, the guidelines avoid discussion ...

   Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 105–127 : Auteur(s): Parker, S.J. and D.A. Bowden

10. An impact assessment framework for bottom fishing methods in the CAMLR Convention Area

    Paper Title:  An impact assessment framework for bottom fishing methods in the CAMLR Convention ... preliminary assessment of bottom fishing impacts for the 2008/09 toothfish longline fishery. This paper ... illustrates the utility of the standardised approach and provides a methodological template for systematic ... Area Abstract / Description:  This paper presents a methodological framework to estimate the likely ... approach in its preliminary assessment of bottom fishing impacts for the 2008/09 toothfish longline ... history of the Ross Sea fishery. The assessment was carried out in two parts: first in a two-day ... Zealand fishing effort in the history of the Ross Sea longline fishery. The process utilises a decision ... that the term ‘risk assessment’ is applied to what is in reality a diverse range of analytic ...

    Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 195–210 : Auteur(s): Sharp, B.R., S.J. Parker and N. Smith

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