Résultats de la recherche

1. Catch per unit effort (CPUE) data from the early years of commercail krill fishing operations in the Atlantic sector of the Antarctic

   Paper Title:  Catch per unit effort (CPUE) data from the early years of commercail krill fishing ... the period 1975/76 to 1987/88. Comparisons are carried out between subareas in single years, between ... years on a subarea and area basis, and between oceanic and shelf regions. Results show that the CPUE may ... differ between subareas, years and shelf/oceanic regions. Obviously, a consistent pattern of CPUE values ... year class 1974/75, although the net was identical to the one in which, in accordance with mesh ... observed in 1980/81. A bimodal distribution was formed with peaks around 35 and 50 mm. In this year the ... ) Krill CPUE from Early Fisheries in the Atlantic Sector I Mean + SD Mean - SD Year and Subarea 250 ... 3). These are the years with the highest average catch rate. The 1981/82 CPUE values also differed ...

   Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 31–50 : Auteur(s): Siegel, V., V. Sushin and U. Damm

2. Variations in condition indices of mackerel icefish at South Georgia from 1972 to 1997

   Paper Title:  Variations in condition indices of mackerel icefish at South Georgia from 1972 to ... Georgia shelf, Antarctica, and have been fished commercially since the early 1970s. They are known to feed ... success. Year ct FUSE CEPE MAPE Nov Dec Jan Feb Mar Trip Surv Meal S Meal S Comparison of Condition ... CONDITION INDICES OF MACKEREL ICEFISH AT SOUTH GEORGIA FROM 1972 TO 1997 I. Everson %3 British Antarctic ... feeding conditions later. During the 1990/91 and 1993/94 seasons all CEMP parameters, with the ... commercially since the early 1970s. They are known to feed predominantly on krill. An index of condition which ...

   Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 119–132 : Auteur(s): Everson, I. and K.-H. Kock

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

   ice cover as a covariate to explain between-year variation in trip duration increased the power to ... years of post-impact monitoring to detect systematic change with high power unless one were willing to ... 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 ... trip durations were constructed and fitted to data collected at Béchervaise Island over a 12-year ... %. The strategy of including ice cover as a covariate to explain between-year variation in trip duration ... variation in penguin foraging trip dura- tion and the use of a 12-year dataset from Adélie penguins at ... -to-year variation. The model assumes a linear relation between mean trip duration per year and ...

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

4. Distribution of fish larvae at South Georgia: horizontal, vertical, and temporal distribution and early life history relevant to monitoring year-class strength and recruitment

   distribution and early life history relevant to monitoring year-class strength and recruitment Abstract ... Georgia, with special reference to the early life history of Champsocephalus gunnari. File:  04-North.pdf ... / Description:  Four studies on the early life history stages of Antarctic fish at South Georgia are reported ... . In winter and summer fish larvae and early juveniles were present over the continental shelf and ... findings are discussed in relation to surveys for sampling the early stages of fish at South Georgia, with ... : HORIZONTAL, VERTICAL, AND TEMPORAL DISTRIBUTION AND EARLY LIFE HISTORY RELEVANT TO MONITORING YEAR-CLASS ... January may be a reasonable time of year with mid-December the optimum in an average year. - 120 ... near the middle of the north-east coast of South Georgia. Conclusions The early stages of the ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 105-141 : Auteur(s): North, A.W.

5. Demographic characteristics of the Adélie penguin population on Béchervaise Island after 12 years of study

   eastern Antarctica after 12 years of monitoring under the CCAMLR Ecosystem Monitoring Program (CEMP). A ... parameters. Results are discussed in comparison with data from a declining Adélie penguin population in the ... after 12 years of study Abstract / Description:  Demographic parameters (age-specific survival rates ... Ross Sea studied during the 1960s and 1970s (Ainley et al., 1983), and in relation to other CEMP ... year (Table 1). Breeding success was calculated in terms of chicks per nest with eggs for each season ... for the Béchervaise Island Adélie penguin colony in eastern Antarctica after 12 years of monitoring ... comparison with data from a declining Adélie penguin population in the Ross Sea studied during the 1960s ... years of age and fecundity is known to increase with age up to 7 years (Ainley et al., 1983). The ...

   Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 53–74 : Auteur(s): Clarke, J., L.M. Emmerson, A. Townsend and K.R. Kerry

6. Fishing ground selection in the Antarctic krill fishery: trends in patterns across years, seasons and nations

   years, seasons and nations Abstract / Description:  Patterns of fishing ground selection were ... contributors to the total catch. A recent shift in operational timing towards later months within fishing ... remained relatively constant in Subareas 48.2 (March–May) and 48.3 (June–August). In 25 years of krill ... 1995/96. If the years are simply expressed as a single year, e.g. 1996, then these refer to calendar ... recent years, except for the years with occasional high catches in SOW (1999, 2002). As previously ... observation (Figure 3), with SSMUs in the seasonal ice zone (Subareas 48.1 and 48.2) mainly being used ... years) with low CPUEs, while Group B nations generally employ short tows with high CPUEs. Although it ...

   Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 117–141 : Auteur(s): Kawaguchi, S., S. Nicol, K. Taki and M. Naganobu

7. Operational interactions of sperm whales and killer whales with the Patagonian toothfish industrial fishery off southern Chile

   Paper Title:  Operational interactions of sperm whales and killer whales with the Patagonian ... (Physeter macrocephalus) and killer whales (Orcinus orca) with Patagonian toothfish (Dissostichus ... eleginoides) fishery operations were assessed in southern Chile during surveys with observers on board ... be associated with various ‘hotspots’ which had high fishing yields. This relationship tends to ... sperm and killer whales with the toothfi sh fi shery and now extends throughout the country, with ... comparing the results of this study with existing photographic databases from the eastern South Pacifi c ... Most interactions with whales occurred along the middle of the Pacifi c-South American continen- tal ... , Pedro Rubilar and Layla Osman greatly contributed with their analytical skills in the later stages of ...

   Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 127–140 : Auteur(s): Hucke-Gaete, R., C.A. Moreno and J. Arata

8. The foraging range of Adélie penguins – implications for CEMP and interactions with the krill fishery

   Paper Title:  The foraging range of Adélie penguins – implications for CEMP and interactions with ... coast of eastern Antarctica between 55 o E (Enderby Land) and 175 o E (Ross Sea). Adélie penguins ... feeding chicks regularly travelled up to 120 km offshore to the continental shelf and returned with krill ... , Euphausia superba. Locations of penguins on foraging trips were compared with historical records of fine ... each 0.5" latitude and 1" longitude provided as a total for the years 1972-1994. These data are ... Figure 3: The positions of satellite fixes obtained from foraging Ad6lie penguins together with krill ... . The krill catch for each 0.5" latitude and 1" longitude is provided as a total for the years 1972 ... OF ADELIE PENGUINS - IMPLICATIONS FOR CEMP AND INTERACTIONS WITH THE KRILL FISHERY K.R. Kerry, J.R ...

   Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 75–87 : Auteur(s): Kerry, K.R., J.R. Clarke, S. Eberhard, H. Gardner, R.M. Lawless, S. Corsolini, S. Focardi, E. Franchi, D. Rodary and R. Thomson

9. Seabird interactions with longlining operations for Dissostichus eleginoides around South Georgia, April to May 1994

   Paper Title:  Seabird interactions with longlining operations for Dissostichus eleginoides around ... eleginoides off South Georgia were assessed for incidental mortality and interactions with seabirds. Twenty ... petrels (Procellaria aequinoctialis); the four day sets contributed 85% of deaths, with giant petrels ... birds/1 000 hooks. Mortality and interactions of birds with operations varied with site and time of day ... lost to birds. Murray et al. (1993) estimated a minimum of 3 652 seabirds caught in New Zealand ... INTERACTIONS WITH LONGLINING OPERATIONS FOR DISSOSTZCHUS ELEGINOIDES AROUND SOUTH GEORGIA, APRIL TO MAY 1994 ... for incidental mortality and interactions with seabirds. Twenty-seven line sets were observed and 98 ... ;); the four day sets contributed 85% of deaths, with giant petrels (Macronectes sp.), grey-headed ...

   Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 111–121 : Auteur(s): Ashford, J.R., J.P. Croxall, P.S. Rubilar and C.A. Moreno

10. The foraging range of Adélie penguins at Béchervaise Island, Mac. Robertson Land, Antarctica, and its overlap with the krill fishery

    , Antarctica, and its overlap with the krill fishery Abstract / Description:  The foraging ranges of six female ... 27 January 1992 1 67.5° 62.9° 12 11 none feeding large chick short foraging trip 28 January 1992 3 ... BECHERV AISE ISLAND, MAC. ROBERTSON LAND, ANTARCTICA, AND ITS OVERLAP WITH THE KRILL FISHERY K.R ... and gentoo) penguins with the krill fishery in the South Shetland and South Orkney Islands was ... the past been significant, with fishing being undertaken by a number of nations, particularly the ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 337–344 : Auteur(s): Kerry, K.R., J.R. Clarke and G.D. Else

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