Résultats de la recherche
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Bacteria and detritus: Trophic modelling of the Ross Sea
with colder autumn first-year ice. Here, we use an average of these values which gives an annual ... lithogeneous particles, excess Fe, and with the early breakdown of katabatic winds suggests that this event ... compartments between years. The vast majority of ice is assumed to melt each year so that the material in the ... bacterial 3 biomass through the year do not necessarily follow phytoplankton biomass – there is often ...
Document : Site Section: Publications
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Demography of Antarctic krill in the Elephant Island area (Antarctic Peninsula) during austral summer 2001
high krill abundance and the high recruitment index reflect the end of a succession of years with poor ... small size classes, one year old juvenile krill was found. Krill density was significantly higher than ... proportional recruitment index for the entire survey area for the 1999/2000 year class was R1 = 0.573, and the ... for a successful spawning season, was G = 0.99, indicating an early initiation of the spawning season ...
Meeting Document : WG-EMM-01/10 : Auteur(s): V. Siegel (Germany), B. Bergström (Sweden), U. Mühlenhardt-Siegel (Germany) and M. Thomasson (Sweden)
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Rapport de pêcherie : Pêcherie exploratoire de Dissostichus spp. des sous-zones 88.1 et 88.2
920) 69 790 (49 210–101 190) 86.7 (82.1–90.4) Year B io m as s ('0 00 t) 1996 1998 2000 ... ) Tous les navires 9 530 (5 670–18 230) 8 640 (4 880–17 340) 90.7 (84.6–95.2) Year B io ...
Document : Site Section: Publications
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Scientific Abstracts 1994
press’ with details of the publisher, if known; (iii) Scientific papers not intended for publication ... were submitted. Each abstract is preceded with a unique CCAMLR document number, e.g. SC-CAMLR-XII/BG/11 ... energy delivery, however, was independent of foraging trip duration. This accords with Antarctic fur ... ). SC-CAMLR-XIII/BG/3 Entanglement of Antarctic fur seals (Arctocephalus gazella) in man-made debris at ... the middle of summer (late February to late March). Krill with a modal length of 45 mm were dominant ... submitted for publication, i.e., in CCAMLR Science or elsewhere, which are listed as ‘in press’ with details ...
Document : Site Section: Publications
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Scientific Abstracts 2007
Science or elsewhere, which are listed as ‘submitted’ or ‘in press’ with details of the publisher, if ... respective CCAMLR bodies at meetings of which these papers were submitted. Each abstract is preceded with a ... haul-level heterogeneity with another of the haul-level methods giving similar estimates. The year ... unknown. 3 The increase in the number of winter entanglements (41) and animals with severe wounding ... ‘submitted’ or ‘in press’ with details of the publisher, if known; (iii) scientific papers not intended ... meetings of which these papers were submitted. Each abstract is preceded with a unique CCAMLR document ...
Document : Site Section: Publications
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Biological characteristics of Antarctic fish stocks in the southern Scotia Arc region
sexual maturity and length at first spawning in Champsocephalus gunnari was one year later on the ... takes one year or more, whereas in others gonad maturation was completed within one season. Length at ... , despite substantial catches in the first four years of the fishery and ample opportunity to sample these ... catches. The only scientific surveys of these stocks during these years were conducted by Germany in 1985 ... with large variations from year to year (Kock, 1989b; Everson et al., 1996). Previous investigations ... ~psoceplzaltis gtinnari was one year later on the southerly grounds than at South Georgia. The distribution of ... Charnpsocephalus gunnari and later the nototheniid Patagonotothen gtintheri around Shag Rocks, with some of the ... for some years in the late 1980s. Since the early 1990s, the fishery was almost exclusively a ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 1–41 : Auteur(s): Kock, K.-H., C.D. Jones and S. Wilhelms
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The role of fish as predators of krill (Euphausia superba) and other pelagic resources in the Southern Ocean (submitted to the 2008 Joint CCAMLR-IWC Workshop)
the low Antarctic were made in the late 1970s/early 1980s. Those estimates were constrained by a ... were extended to the mesopelagic realm and the high-Antarctic Zone in the late 1980s and early 1990s ... nototheniids, and that the importance of krill in fish diets varies substantially both with time and location ... on various scales, as well as with the availability of alternate prey in the different regions in the ... of sexually mature 3–4-year-old E. carlsbergi while south of the APFZ 2–3-year- old immature fish ... in the late 1970s/ early 1980s. Those estimates were constrained by a paucity of biomass estimates ... mesopelagic realm and the high-Antarctic Zone in the late 1980s and early 1990s when these areas were ... , and that the importance of krill in fish diets varies substantially both with time and location on ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 115–169 : Auteur(s): Kock, K.-H., E. Barrera-Oro, M. Belchier, M.A. Collins, G. Duhamel, S. Hanchet, L. Pshenichnov, D. Welsford and R. Williams
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Liste officielle des mesures de conservation en vigueur saison 2002/03
every five years in accordance with Conservation Measure 91-01 (last review in 2000). 91-03 (2002 ... ) Protection of the Seal Islands CEMP site To be reviewed every five years in accordance with Conservation ... Commission in accordance with Article IX of the Convention on the Conservation of Antarctic Marine Living ... identifying the measure within that category; the year in which the latest version of the measure was ...
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Do Adélie penguin fledgling weights provide an index of prey availability?
the end of the breeding season were more strongly correlated with later foraging trips than with ... to two assumed proxies of prey availability: breeding success and foraging trip duration. Concordance ... between the two proxies was apparent when considering guard stage foraging trip durations but this was not ... throughout the breeding season resulting in good breeding success with heavy fledglings or poor breeding ...
Meeting Document : WG-EMM-05/21 : Auteur(s): L. Emmerson, C. Southwell and J. Clarke (Australia)
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Upward adjustments to local catch limits for the krill fishery in Subarea 48.1
values, agrees generally with expert opinion, and suggests that indices of foraging trip duration, fledge ... detect within-season increases in krill biomass. Thus, a ratio of late to early summer krill biomass ... green, the ratio of late-summer to early-summer estimates of krill biomass from acoustics surveys ... the gSSMUs defined in another compilation of vignettes (AERD 2016a, pp. 3-13). We propose upward ...
Meeting Document : WG-EMM-16/47 : Auteur(s): Antarctic Ecosystem Research Division, Southwest Fisheries Science Center and NOAA Fisheries