Résultats de la recherche

1. A hypothetical life cycle for Antarctic toothfish Dissostichus mawsoni in Antarctic waters of CCAMLR Statistical Area 88

   Dissostichus mawsoni in CCAMLR Statistical Areas 88.1 & 88.2 were reviewed. Based on the presumed location ... of the smallest toothfish taken in the toothfish fishery. Our present hypothesis is that D. mawsoni ... in CCAMLR Statistical Subareas 88.1 and 88.2 spawn to the north of the Antarctic continental slope ... eastwards with the eastern Ross Sea gyre settling out along the continental slope and shelf to the east of ...

   Meeting Document : WG-FSA-07/35 : Auteur(s): S.M. Hanchet, G.J. Rickard, J.M. Fenaughty, A. Dunn and M.J. Williams (New Zealand)

2. Density and abundance estimates of baleen whales recorded during the 2019 DY098 cruise in the Scotia Sea around South Georgia and the South Sandwich Islands

   Abstract:  We use cetacean sightings data collected from the northern and eastern Scotia Arc ... of 42.5°W in all water depths surveyed, with fin whales the next most commonly sighted species (53 ... sightings and a cumulative count of 76 whales). Humpback whale abundance in South Georgia (Subarea 48.3) was ... abundance estimates of baleen whales recorded during the 2019 DY098 cruise in the Scotia Sea around South ...

   Meeting Document : WG-EMM-2019/27 : Auteur(s): M. Baines, M. Reichelt, C. Lacey, S. Pinder, S. Fielding, N. Kelly, E. Murphy, P. Trathan and J.A. Jackson

3. Fishing and conservation in southern waters

   operations and the entanglement of seals in fragments of discarded or lost fishing gear. Most fish stocks had ... Abstract:  Fishing in the Southern Ocean commenced on finfish in 1969/70 and on krill in 1972/73 ... the by-catch of juvenile fish in the krill fishery, to incidental mortality of birds during longline ... (CCAMLR) came into force in 1982. Stringent conservation measures to halt the further decline of the ...

   Meeting Document : SC-CAMLR-XII/BG/11 : Auteur(s): Delegation of Germany

4. Upward adjustments to local catch limits for the krill fishery in Subarea 48.1

   adjustments to local catch limits for the krill fishery in Subarea 48.1.  We use the term local catch limit to ... the gSSMUs defined in another compilation of vignettes (AERD 2016a, pp. 3-13).  We propose upward ... krill fishery in Subarea 48.1 (see Watters et al. 2016).  Our proposal to make upward adjustments is ... the stoplight is “green” and there has been a concomitant increase in local krill biomass. We ...

   Meeting Document : WG-EMM-16/47 : Auteur(s): Antarctic Ecosystem Research Division, Southwest Fisheries Science Center and NOAA Fisheries

5. Comparison between the CCAMLR-2000 and KY 1988 surveys on environmental variability of krill in the Scotia Sea, Antarctica

   ? in the western waters and 2.0? in the eastern waters of the Scotia Sea. Krill density became higher ... Japanese R/V Kaiyo Maru Survey in the 1987/88 austral summer season in the Scotia Sea. There were distinct ... krill distribution. The sea ice cover in 1987/88 extended northward widely during the last winter season ... such that sea ice remained around the South Orkney Islands until December 1987. In contrast, the sea ...

   Meeting Document : WG-EMM-02/43 : Auteur(s): M. Naganobu (Japan), M. Brandon (United Kingdom), K. Ito, K. Segawa (Japan) and V. Siegel (Germany)

6. Revised proposal for the ongoing research plan on Patagonian toothfish (Dissostichus eleginoides) in Division 58.4.4b (2016/17–2020/21)

   the research objectives. The survey design has been amended to avoid sea pen hotspots in the eastern ... this research plan in 2015 and a joint proposal was submitted for the first time in 2016 (WG-SAM-16/06 ... and improved the revised research plan presented in SC-CAMLR-XXXVII Annex 12 and redefined slightly ... whales (O. orca) ecology and depredation ”) are addressed in two documents submitted at WG-SAM-19. We ...

   Meeting Document : WG-SAM-2019/08 : Auteur(s): Delegations of Japan and France

7. Ross Sea Bioregionalisation, Part II: Patterns of co-occurrence of mesopredators in an intact polar ocean ecosystem

   Abstract:  We report results of analyses of niche occupation among mesopredators in the Ross Sea ... used to identify areas of importance to species in a conservation prioritization framework (Zonation ... ice surrounding the Ross Sea post-polynya): combinations in which the slope is the main habitat but ... western and eastern portions of the shelf (where sea ice is persistent) are used as well (Minke whale ...

   Meeting Document : WG-EMM-10/12 : Auteur(s): G. Ballard, D. Jongsomjit and D.G. Ainley (USA)

8. Quantifying vessel performance in the CCAMLR tagging program: spatially and temporally controlled measures of tag-detection rates

   Paper Title:  Quantifying vessel performance in the CCAMLR tagging program: spatially and ... tagging program is critical to the successful management of a number of toothfish fisheries in Antarctica ... . In particular, tag-detection rates are directly linked to stock size estimated from the tag data in ... an integrated stock assessment. Previous attempts to assess the relative reliability of vessels in ... In CCAMLR Subareas 88.1 and 88.2, tag- release and -recapture data are used in an integrated age ... yields (Mormede et al., 2011a, 2011b; Mormede, 2011). In those analyses, the assumed values of ... parameters. For example, under- estimating the tag-detection rate of the fleet will result in an ... that there may be impor- tant differences between vessels in their respective detection rates of ...

   Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 73–80 : Auteur(s): Mormede, S. and A. Dunn

9. Scientific observations in CCAMLR fisheries – past, present and future

   Paper Title:  Scientific observations in CCAMLR fisheries – past, present and future Abstract ... -independent studies are difficult and expensive to conduct. In addition, the size of the Convention Area, its ... remoteness and prevailing inclement weather further complicate matters. Therefore, in addition to the ... observers on board fishing vessels has assumed prominence in the collection of essential data for fisheries ... , Vol. 12 (2005): 81–98 81 SCIENTIFIC OBSERVATIONS IN CCAMLR FISHERIES – PAST, PRESENT AND FUTURE ... information on affected resources. Fishery-independent studies are diffi cult and expensive to conduct. In ... complicate matters. Therefore, in addition to the standard catch and effort data supplied by vessels, the ... in the collection of essential data for fi sheries management purposes. The Scheme of International ...

   Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 81–98 : Auteur(s): Sabourenkov, E.N. and E. Appleyard

10. A composite recruitment index to describe interannual changes in the population structure of Antarctic krill at South Georgia

    Paper Title:  A composite recruitment index to describe interannual changes in the population ... substantial differences, due in part to bias arising from a large number of krill in just one of the station ... %), while between 1994 and 1998 the number of 1+ krill found in the population increased with a very ... successful recruitment year due to krill spawned in 1994/95. File:  06watkins.pdf ... ) shows that this is frequently the case, especially within the area of the eastern core box. In the ... in offshore waters at the eastern end of the island. The calculation of recruitment indices from ... the eastern end of the island, while in contrast large krill, when present, tended to occur at the ... krill occurring at the eastern end of the island early in the season are likely to be transported ...

    Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 71–84 : Auteur(s): Watkins, J.L

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