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Destruction of Antarctic terrestrial ecosystems by a rapidly increasing fur seal population
. The impact that the continuing increase of these seals had made on the island039;s terrestrial and ... has suffered physical damage from which it may be impossible to recover. These seals are also ... frequenting several of the island039;s freshtwater lakes which are becoming increasingly eutrophic. The long ...
Meeting Document : SC-CAMLR-VII/BG/06 : Autor(es): R.I. Lewis Smith (United Kingdom)
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A preliminary assessment of mackerel icefish (Champsocephalus gunnari) in Division 58.5.2, based on results from the 2013 random stratified trawl survey
be unavailable beyond 2013/14. Under the first scenario, a catch limit of 764 t is recommended for ... using standard CCAMLR methods. A large cohort of fish, estimated to be 3+, dominates the population in ... the population, and a projection accounting for the fact that the abundant 3+ year class is likely to ... 2013/14 and 571t for 2014/15, while under the second scenario, a catch limit of 1267 t is recommended ...
Meeting Document : WG-FSA-13/23 : Autor(es): D.C. Welsford (Australia)
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The diet of black-browed albatrosses at the Diego Ramirez Islands, Chile
, Chile, during the early chick-rearing period of 2000, 2001 and 2002. Diet composition was determined by ... similar throughout the study, with diet being dominated by fish in all three years. Overall, the main ... mass). The distribution of the prey species indicates that black-browed albatrosses obtained the bulk ... fish hooks and fish bait species, indicates a strong association with fisheries in southern Chile ...
Meeting Document : WG-FSA-03/9 : Autor(es): J. Arata (Chile) and J.C. Xavier (United Kingdom)
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A descriptive analysis of the toothfish (Dissostichus spp.) tagging programme in the Ross Sea up to 2005/06
and 88.2 since 2001 is presented. The paper updates tag-release and tag-recapture data for fish that ... release data. It is recommended that all outstanding release and recapture data be provided to the ... Secretariat as soon as possible so that the analysis can be updated in time for the 2006 WG-FSA meeting ... . However, recapture rates have tended to be higher in the northern and eastern SSRUs 88.1C and 88.2E. About ...
Meeting Document : WG-FSA-SAM-06/09 : Autor(es): A. Dunn and S.M. Hanchet (New Zealand)
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Adélie penguin foraging behaviour and breeding success in seasons of contrasting krill availability (Mawson Coast, Antarctica)
present during the two-week survey period in 2001 than in 2003. Penguin parameters that showed significant ... ’ normal foraging range during the 2001 and 2003 breeding seasons. More than three times as much krill was ... mass and dietary composition. Penguins travelled further to forage in 2003 than 2001, stayed away ... to the diet in 2003 but was only a minor component in 2001. Differences between years were ...
Meeting Document : WG-EMM-03/44 : Autor(es): J. Clarke, M. Tierney, S. Candy, S. Nicol, L. Irvine and K. Kerry (Australia)
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ASSESSMENT MODELS FOR ANTARCTIC TOOTHFISH (DISSOSTICHUS MAWSONI) IN SUBAREA 88.2 SSRU E FOR THE YEARS 2002/03 TO 2008/09
from different years. The use of the selected trips with the revised maturity ogive resulted in a ... greater similarity between the yields resulting from an assumption that the future fishing selectivity was ... equal to the current fishing selectivity and the assumption that future fishing selectivity was equal to ... the maturity ogive. Model fits to the data were adequate, with the tag-release and recapture data ...
Meeting Document : WG-FSA-09/41 : Autor(es): A. Dunn and S.M. Hanchet (New Zealand)
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Reproductive analysis of Dissostichus mawsoni in SSRU 5841C-a for the exploratory longline fishery in 2012/13 of Korea
vulnerable with a big range of about 1,000-2,000 t per SSRU in 58.4.1. However, there is not enough data to ... 0.54 displaying the tendency increased with the total length became larger. The gonadosomatic index of ... of growing stage, initial vitellogenic oocytes with approximately 150 ㎛ of egg size was mainly ... spermatids that illustrated basophilic reaction in H-E staining within the expanded testicular cysts in the ...
Meeting Document : WG-SAM-13/27 : Autor(es): I.J. Yeon, J.S. Lee, Y.J. Kwon, M.A. Jeon, S.K. Choi, K.J. Seok, D.W. Lee, K.Y. Ku and H.J. Kim (Republic of Korea)
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Preliminary studies on age, growth and size at sexual maturity of Dissostichus eleginoides in the Ob-Lena Bank in the 2007/08 season
of otolith readings by experienced readers of AAD. One of these is that the first ring was generally ... rate and reached a larger size than males. The individuals with 80 cm total length, which are generally ... hand, the age at 50 % maturity for females and males was estimated to be 12.3 and 12.5 year ... , respectively, assuming animals with maturity stage > I. However, the results in reading for 40 reference ...
Meeting Document : WG-FSA-11/16 : Autor(es): K. Taki, T. Iwami and M. Kiyota (Japan)
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Observations of demersal fish, benthic communities and seafloor composition of the Southern Ocean Atlantic sector from the ICEFISH 2004 cruise
invertebrate species composition between island groups was observed, with the greatest differences between the ... the different community structure. Due to mixed gear selectivity and possible avoidance, it was not ... , estimates of benthic invertebrate densities by station were computed and maps generated that provide ...
Meeting Document : WG-FSA-04/61 : Autor(es): C.D. Jones, S.J. Lockhart and D.F. Doolittle (USA)
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By-catch of juvenile fishes – the Antarctic krill fishery
together with the massive antarctic krill exploitation during the 80039;s. There has been recognized ... larvae that use (or co-occurred) the krill swarms as their habitat. The detection of this problem started ... quantitative evaluations that give evidences that this technological interaction, is affecting the recovery of ... over-exploited populations or that commercial or noncommercial populations are diminishing. Author(s ...
Meeting Document : WG-FSA-96/18 : Autor(es): Moreno, C.A.