Résultats de la recherche

1. Summer distribution, abundance and structure of krill populations (Euphausia superba and Euphausia crystallorophias) sampled by plankton net in the western Ross Sea (January–February 2000)

   double oblique tow. Mean relative biomass of Antarctic krill Euphausia superba, in the area north of ... dominance in the High Antarctic Zone (south of 74°), with a mean relative biomass of 3.0 (±26%) g/l000m3 and ... mean density of 16.8 (±10%) individuals per 1000m3. The present data have demonstrated that in the Ross ... analysed. This indicated that the composition of the aggregations in terms of the mean length, sex ratio ...

   Meeting Document : WG-EMM-00/38 : Auteur(s): M. Azzali, A. Sala and G. Brancato (Italy)

2. Entanglement of Antarctic fur seals Arctocephalus gazella in man-made debris at Bird Island, South Georgia during the 1994 winter and 1994/95 pup-rearing season

   juveniles. Of entangled animals the proportion of males affected was 67%, approximately the same as in 1993 ... and 1991, but two-thirds of the value recorded in 1990 and 1992. The proportion of entangled animals ... 1994 winter. In the 1994/95 summer the number of entangled seals (20) was also the lowest yet recorded ... Abstract:  Surveys of Antarctic fur seals entangled in man-made marine debris were carried out for ...

   Meeting Document : SC-CAMLR-XIV/BG/08 : Auteur(s): Delegation of the United Kingdom

3. Notothenia (p.) gibberifrons Stock Status and TAC Estimation in the Area of Shag Rocks (Subarea 48.3)

   -term mean (5947 million specimens), the abundance of N. guntheri in 1987/77 was 152 thousand tons. Then ... ) Fishing intensity in the predicted period is at the level of 1987/88; c) Fishing intensity in the ... ) Title:  Notothenia (p.) gibberifrons Stock Status and TAC Estimation in the Area of Shag Rocks (Subarea ... the mean value of fishing mortality for the main commercially taken age groups (2- 4 years); b ...

   Meeting Document : WG-FSA-88/33 : Auteur(s): R. Borodin and K. Shust (USSR)

4. Trophic interactions and population trends of killer whales (Orcinus orca) in the southern Ross Sea

   coincident with a decrease in the number and size of an important prey: Antarctic toothfish (Dissostichus ... contrast, the prevalence of the larger, mammal-eating Type-B killer whales has not changed in the southern ... small penguins, such as Adélies (Pygoscelis adeliae), are presented. In the case of both killer whale ... forms, the progressive seasonal breakup of fast ice in large bays bordering the Ross Sea likely provides ...

   Meeting Document : WG-FSA-12/P03 : Auteur(s): D.G. Ainley and G. Ballard

5. Discharge of offal in the Ross Sea – follow up to COMM CIRC 15/15–SC CIRC 15/06

   an analysis of the information provided by New Zealand in previous years (COMM CIRC 13/09), along ... facilitate further investigation. In 2013 reports of offal were tightly clustered in a small area on the ... border of SSRUs 88.H and J, whereas in 2015 the reports were received from a broader area. For each ... . Identifying the provenance of offal found in the stomachs of toothfish is inconclusive in many cases, however ...

   Meeting Document : CCAMLR-XXXIV/BG/10 : Auteur(s): CCAMLR Secretariat

6. Revised research plan for the 2015/16 exploratory longline fishery of Dissostichus spp. in Division 58.4.1

   management of Dissostichus spp. population(s) in data- poor exploratory fisheries. During the second three ... WG-FSA in 2013 in order to maximize the expectation of tag-recapture to the extent possible under the ... Abstract:  The current season (2014/15) is the final one of the first three-season research which ... began in 2013 in data-poor fisheries. In the present report, the next three-season (2016-18) research ...

   Meeting Document : WG-FSA-15/17 : Auteur(s): Delegation of Japan

7. Revised research plan for the 2015/16 exploratory longline fishery of Dissostichus spp. in Division 58.4.2

   / fisheries management of Dissostichus spp. population(s) in data- poor exploratory fisheries. During the ... at the WG-FSA in 2013 in order to maximize the expectation of tag-recapture to the extent possible ... for the 2015/16 exploratory longline fishery of Dissostichus spp. in Division 58.4.2 Approval ... Abstract:  The current season (2014/15) is the final one of the first three-season research which ...

   Meeting Document : WG-FSA-15/18 : Auteur(s): Delegation of Japan

8. LENGTH AND AGE AT SPAWNING OF ANTARCTIC TOOTHFISH DISSOSTICHUS MAWSONI IN THE ROSS SEA

   ) by length. Evidence of skip spawning by females results in a right-shifted ogive, increasing the ... slope with the age distribution in the northern area and the lack of evidence for skip spawning in the ... ogive is biased right (older) by excluding the mature fish in the north depends on the proportion of the ... male Antarctic toothfish Dissostichus mawsoni from fish sampled in the Ross Sea spanning the 2000-2009 ...

   Meeting Document : WG-FSA-09/37 : Auteur(s): S.J. Parker and P.J. Grimes (New Zealand)

9. Distribution of krill (Euphausia superba Dana) catches in the South Shetlands and South Orkneys

   around the coasts of the South Shetland and South Orkney Islands. Krill catches in these zones are shown ... , probably as a result of more variable hydrographic conditions. About 50% of the catch in Subarea 48.1 from ... December to March was taken within 40 km of the coast, and 90% within 80 km in all years 1988-1990. In 1987 ... and 1988 75% of the catch in Subarea 48.2 between December and March was taken within 80 km of ...

   Meeting Document : WG-KRILL-92/19 : Auteur(s): D.J. Agnew (Secretariat)

10. A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997/98 to 2009/10

    Subarea 88.1 and for 9 years in Subarea 88.2. This report summarises the timing, depth, and location of ... 2009–10. During the 2009–10 fishing year most of the catch in Subarea 88.1 came from the slope SSRUs ... considerably over time in each of the fisheries showing no trend in the main fisheries in Subarea 88.1 and SSRU ... small fish. A major source of uncertainty in the current stock assessment concerns the recruitment ...

    Meeting Document : WG-FSA-10/23 : Auteur(s): S.M. Hanchet, M.L. Stevenson and A. Dunn (New Zealand)

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