Résultats de la recherche

1. Flexible foraging strategies of gentoo penguins help buffer the impacts of inter-annual changes in prey availability

   varied over time; different dive depth-distributions were observed in each year. Nonetheless, chick ... Shetland Islands, Antarctica, over five years. Antarctic krill Euphausia superba was the primary diet item ... , and fish the secondary, though the importance of these items varied among years. Diving behavior also ... differences in prey availability by altering their foraging strategy among years. We suggest that this ...

   Meeting Document : WG-EMM-08/50 : Auteur(s): A.K. Miller and W.Z. Trivelpiece (USA)

2. Fishery monitoring and closure procedures

   interpretation and application of procedures to monitor and forecast closures in CCAMLR fisheries in the 2018/19 ...

   Meeting Document : CCAMLR-38/BG/12 : Auteur(s): CCAMLR Secretariat

3. A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997/98 to 2006/07

   Shelf in 1999 and 2001), these year classes are not seen in large numbers in later years in the fishery ... management of the SSRUs within the two subareas was changed for the 2006 season as part of a 3-year ... . So at this stage there is no evidence for strong variation in year class strength in the fishery ... years in Subarea 88.1 and for five years in Subarea 88.2. This report summarises the large amount of ...

   Meeting Document : WG-FSA-07/28 : Auteur(s): S.M. Hanchet, M.L. Stevenson and A. Dunn (New Zealand)

4. Are penguins and seals in competition for Antarctic krill at South Georgia?

   , respectively, the main mammal and bird consumers of Antarctic krill (Euphausia superba). In recent years the ... 1989 and 2000. Foraging ranges of the two species showed considerable overlap in both years but the ... species was very similar, but over the last 12 years the prevalence of krill in their diets has diverged ... years of krill scarcity. Author(s):  K.E. Barlow, I.L. Boyd, J.P. Croxall, K. Reid, U.J. Staniland and ...

   Meeting Document : WG-EMM-02/22 : Auteur(s): K.E. Barlow, I.L. Boyd, J.P. Croxall, K. Reid, U.J. Staniland and A.S. Brierley (United Kingdom)

5. Stock assessment of D. eleginoides in Subarea 48.3 using dynamic production models

   Schaefer and Fox production functions) were used: total yield for a series of years and abundance index ... estimates by years of fishing. Both models showed that the D. eleginoides stock status at the initial period ... in recent years. The trends in biomass dynamic estimated by DPM are very similar with trends from ...

   Meeting Document : WG-FSA-02/78 : Auteur(s): P.S. Gasiukov and R.S. Dorovskich (Russia)

6. Depletion-corrected average catch: a simple formula for estimating sustainable yields in data-poor situations

   biomass. The size of the windfall is expressed as being equivalent to a number of years of sustainable ... sum of the number of years in the catch series and this windfall ratio. Input information includes the ... sum of catches and associated number of years, the relative reduction in biomass during that period ...

   Meeting Document : WG-SAM-11/P3 : Auteur(s): A.D. McCall

7. Diet composition and observations on reproduction of Champsocephalus gunnari in Subarea 48.3 in March/April 1996, Dr Eduardo Holmberg survey

   items, known as an important alternative food in years of krill scarcity, were ingested only ... higher than those reported for the 1991 and 1994 years of krill shortage. The analysis of the ovarian ... in the region in levels equivalent to the historical years of high abundance. Author(s):  Marschoff ...

   Meeting Document : WG-FSA-96/28 Rev. 1 : Auteur(s): Marschoff, E., Barrera-Oro, E., Casaux, R.

8. Population identity, site-fidelity, movement ranges and preliminary estimates of abundance of southern right whales in the Antarctic Indian sector inferred from genetic markers

   return to the same location in the Antarctic Indian sector in subsequent years. The average longitudinal ... ’ and the ‘recapture’ ranged from 3-13 years with an average at 7.3 years. Preliminary application of a ... the same sector and similar period. However differences were observed in some years, which suggest ...

   Meeting Document : WG-EMM-18/18 : Auteur(s): L.A Pastene, M. Goto, P. Acuña, M. Taguchi, T. Hakamada and K. Matsuoka

9. Age and growth of the Antarctic skate (Amblyraja georgiana) in the Ross Sea

   maximum age was 14 years, but this should be regarded as a conservative estimate of longevity because of ... respectively) produced estimated ages at maturity of 6–7 years for males and 8–11 years for females. These ...

   Meeting Document : WG-FSA-04/29 : Auteur(s): M.P. Francis and C. Ó Maolagáin (New Zealand)

10. Coincidence between climate fluctuations and variability in the Antarctic krill (Euphausia superba) recruitment

    Drake Passage and krill recruitment variabiIlty. Years of high pressure gradients coincided with the ... years of good krill recruitment, and vice versa. Author(s):  Sasai, Y., Kutsuwada, K., Naganobu, M ...

    Meeting Document : WG-EMM-95/53 : Auteur(s): Sasai, Y., Kutsuwada, K., Naganobu, M.

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