Résultats de la recherche

1. Environmental variability and the behavioural dynamics of Antarctic fur seals in the South Atlantic

   gazella) over 15 years at the island of South Georgia in relation to major indices of southern hemisphere ... Abstract:  Variability in the reproductive performance of marine predators may be a result of ... to link variability in predator performance with specific measurements of oceanographic variability ... . This study examined variation in the foraging behavior of lactating Antarctic fur seals (Arctocephalus ...

   Meeting Document : WS-AREA 48-98/16 : Auteur(s): I.L. Boyd (UK)

2. Fishery Report: Exploratory fishery for Dissostichus spp. in Division 58.4.3b

   reclassified as exploratory in 2000. That year, the Commission agreed on four exploratory fisheries for ... Seong No. 829 - 10 6 16 Spain Arnela - 30 67 97 Galaecia - 20 8 28 2005/06 Chile Globalpesca I ... only been found on BANZARE Bank (WG-FSA-07/44 and SC-CAMLR-XXVII, paragraph 3.32). 20. In 2009, the ... each year. (ii) Scenario 2: spawning fish move sporadically to Division 58.4.3b, and then remain in ...

   Document : Site Section: Publications

3. Otolith microstructure of juvenile mackerel icefish (Champsocephalus gunnari) (Channichthyidae) in the South Georgia area

   comprised two year classes arising from spawning in the 1999/2000 and 2000/01 split-years. The mean width of ... increments. TL varied from 5.5 to 10.4 cm for fish in their first year (120–250 days) to 12.5–13.3 cm in 1 ... ) (Channichthyidae) in the South Georgia area Abstract / Description:  The otolith microstructure of juvenile ... mackerel icefish (Champsocephalus gunnari) (5.5–13.3 cm in length) was analysed using samples taken during ... the 1999/2000 (5 speci- mens) and 2000/01 (20 specimens) split-years. The 1999/2000 year class ... survey of juveniles in February–March 2002 on the South Georgia shelf. Juvenile fi sh comprised two year ... varied from 5.5 to 10.4 cm for fi sh in their fi rst year (120–250 days) to 12.5–13.3 cm in 1-year-old ... shown in Figures 1, 2 and 3. For age-reading purposes, the Antarctic split- year system was used, in ...

   Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 173–181 : Auteur(s): Shcherbich, L.V

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. Measurements of differences in the target strength of Antarctic krill (Euphausia superba) swarms at 38 kHz and 120 kHz

   Paper Title:  Measurements of differences in the target strength of Antarctic krill (Euphausia ... superba) swarms at 38 kHz and 120 kHz Abstract / Description:  Differences in the target strength of adult ... differences in the mean back-scattering strength of swarms simultaneously insonified at these two frequencies ... in studies off the South Orkneys and Elephant Island in March 1990. Back-scattering strengths at 120 ... -scatter from aggregations of encaged animals which varied in mean length from 30 to 39 mm. Calculated ... ~ Z 30 « o "" ~ ~ 20 Z 10 .' . -I, - A9880 /' 1\ --- A9885 1\ •••• A9891 ... WG-KRILL-90/28 MEASUREMENTS OF DIFFERENCES IN THE ... * * Abstract Differences in the target strength of adult (36 to 60 mm) Antarctic krill (Euphausia superba ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 75–86 : Auteur(s): Hampton, I.

6. Results of a research survey to monitor abundance of pre-recruit Antarctic toothfish in the southern Ross Sea, February 2012

   San Aotea II and its sister ship Janas in earlier years of the fishery. The results of a standardized ... longline surveys to monitor pre-recruit (<100 cm TL) toothfish in the south of SSRUs 881.J and 881.L in ... the southern Ross Sea using standardised gear in a standardised manner; and (ii) To carry out ... experimental depth-stratified fishing in 400–600 m depth adjacent to the survey boundaries to establish the ...

   Meeting Document : WG-SAM-12/29 : Auteur(s): S.M. Hanchet, S. Mormede, A. Dunn (New Zealand) and H.-S. Jo (Republic of Korea)

7. Quantifying within- and between-season variability in Adélie penguin fledgling weights: statistical and practical implications for detecting change

   reducing to 30 the number of birds weighed in a single 5-day period each year. If practical, this outcome ... Béchervaise Island and use them in a power analysis as a continuation of the CEMP review. The statistical ... principles using raw data as recommended in Southwell et al. (2004). These models should be viewed as initial ... fledgling weights with a decline in resource availability, the consideration of total chick failure during ...

   Meeting Document : WG-EMM-05/20 : Auteur(s): L. Emmerson, C. Southwell and J. Clarke (Australia)

8. Preliminary evaluation of two feedback management strategies for the krill fishery in Subareas 48.1–48.3

   for the krill fishery will compromise the Commission’s ability to achieve the objectives in Article II ... management strategies in which the overall catch limit is dynamically redistributed among small scale ... ‑2) or (2) changes in penguin abundance. Relative to the case in which the overall catch limit is ... statically distributed among SSMUs in proportion to catches taken during 2009-2016, we found that the two ...

   Meeting Document : SC-CAMLR-XXXVII/BG/12 : Auteur(s): Delegation of the USA

9. A Petersen tag-recapture preliminary population assessment of Antarctic toothfish in CCAMLR Subarea 48.4 based on data for the 2009–2014 fishing seasons

   tagging returns to be 1,027 tonnes during the  2013/14 season. In previous years the harvest rate used for ... Abstract:  The stock of Antarctic toothfish (D. mawsoni) in CCAMLR subarea 48.4 was estimated from ... Patagonian toothfish (D. eleginoides) in Subarea 48.3 (γ = 0.038) has been used as a precautionary harvest ... tag-recapture preliminary population assessment of Antarctic toothfish in CCAMLR Subarea 48.4 based on ...

   Meeting Document : WG-FSA-14/30 Rev. 1 : Auteur(s): V. Laptikhovsky, R. Scott, M. Söffker, T. Earl and C. Darby (United Kingdom)

10. Assessment of Patagonian toothfish (D. eleginoides) in Subarea 48.3

    . Projections indicate that a constant catch of 2 600 tonnes in the 2017/18 and 2018/19 seasons would be ... the current status of the stock is at 51% of B 0. Spawning biomass has been increasing in recent years ... Abstract:  Assessment of the Patagonian toothfish (D. eleginoides) in Subarea 48.3 indicates that ... Patagonian toothfish (D. eleginoides) in Subarea 48.3 Microsoft Word File:  fsa-17-53.docx Approval ...

    Meeting Document : WG-FSA-17/53 : Auteur(s): T. Earl and S. Fischer

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