Search results
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Population identity, site-fidelity, movement ranges and preliminary estimates of abundance of southern right whales in the Antarctic Indian sector inferred from genetic markers
to the same location in the Antarctic Indian sector in subsequent years. The average longitudinal dispersal ... ’ and the ‘recapture’ ranged from 3-13 years with an average at 7.3 years. Preliminary application of a ‘mark-recapture ... sector and similar period. However differences were observed in some years, which suggest that some ... that individual whales tended to return to the same location in the Antarctic Indian sector in subsequent years ...
Meeting Document : WG-EMM-18/18 : Author(s): L.A Pastene, M. Goto, P. Acuña, M. Taguchi, T. Hakamada and K. Matsuoka
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Trends in entanglement of Antarctic fur seals (Arctocephalus gazella) in man-made debris at South Georgia
of any material unavoidably jettisoned which could form collars to entangle seals. Five subsequent years ... been halved in recent years. However, the South Georgia fur seal population has approximately doubled ... in the same period, so that the overall total of animals entangled may even have increased. Nevertheless ... bands and the fact that all such bands washed ashore over the last 2 years have been cut, does suggest ...
Meeting Document : SC-CAMLR-XV/BG/03 : Author(s): Delegation of the United Kingdom
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Report of Member’s activities in the Convention Area 1998/99
by Australia in the Convention Area during the year to 30 June 1999. Author(s): Delegation of Australia Title ... by Australia in the Convention Area during the year to 30 June 1999. ...
Meeting Document : CCAMLR-XVIII/MA/13 : Author(s): Delegation of Australia
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Reproduction in Antarctic notothenioid fish - a review
gunnari in the Atlantic Ocean sector do not spawn each year. Gonadosomatic index (GSI) of females is 15–40 ... % at spawning. Apart from a few nototheniid species the GSI of males is much less and typi6dlly only 15–20 ... only in a few nototheniid species and is commonly in the order of 1000 to 15–20 000 eggs. Ova diameter ... in the Atlantic Ocean sector do not spawn each year. Gonadosomatic index (GSI) of females is 15–40% at spawning ...
Meeting Document : SC-CAMLR-X/BG/12 : Author(s): Delegation of Germany
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Age and growth of the Antarctic skate (Amblyraja georgiana) in the Ross Sea
. The maximum age was 14 years, but this should be regarded as a conservative estimate of longevity because ... ages at maturity of 6–7 years for males and 8–11 years for females. These estimates are near the middle ... was 14 years, but this should be regarded as a conservative estimate of longevity because ... ages at maturity of 6–7 years for males and 8–11 years for females. These estimates are near the middle ...
Meeting Document : WG-FSA-04/29 : Author(s): M.P. Francis and C. Ó Maolagáin (New Zealand)
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Coincidence between climate fluctuations and variability in the Antarctic krill (Euphausia superba) recruitment
in 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 ... and krill recruitment variabiIlty. Years of high pressure gradients coincided with the years of good krill ...
Meeting Document : WG-EMM-95/53 : Author(s): Sasai, Y., Kutsuwada, K., Naganobu, M.
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Joint report on exploratory fishing in Divisions 58.4.1 and 58.4.2 between the 2011/12 and 2017/18 fishing seasons
for 2018 will be submitted to WG-FSA-18. The summaries provided herein were generated using an R-Markdown ... the quantity of data and samples collected. Reports relating to specific research milestones for 2018 ...
Meeting Document : WG-SAM-18/35 Rev. 1 : Author(s): Delegations of Australia, France, Japan, Republic of Korea and Spain
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Skate tagging in the Heard Island and McDonald Island (Division 58.5.2) toothfish fishery up to 2013
. Growth increments for tagged and recaptured B. eatonii indicated growth of ~20mm/year for both sexes ... for tagged and recaptured B. eatonii indicated growth of ~20mm/year for both sexes between 600 and 1000mm ... and biology of these species. In the 13 years, over 12,000 skates have been tagged, with 112 recaptures ... in all directions. Most recaptures occurred within the first three years, with the maximum time ...
Meeting Document : WG-FSA-13/22 : Author(s): G.B. Nowara, T.D. Lamb and D.C. Welsford (Australia)
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Evidence to support the annual formation of growth zones in otoliths of Antarctic toothfish (Dissostichus mawsoni)
, sagittal otoliths were examined from D. mawsoni that had been injected with oxytetracycline some years ... that the modes represented year classes and that one translucent zone is formed annually in otoliths of juvenile ... D. mawsoni. Mean fish lengths at ages 0.5, 1.5, 2.5, and 3.5 years were estimated to be 14, 28, 37, and 46 cm ... of data that was large but lacked any fish younger than 3.5 years. Counting translucent zones ...
Meeting Document : WG-FSA-02/33 : Author(s): P.L. Horn, C.P. Sutton (New Zealand) and A.L. DeVries (USA)
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Stability of trip selections for the assessment of Antarctic toothfish in the Ross Sea
was stable over time. The 2009 dataset was reduced by omitting data from the two most recent years ... , and the data selection method applied to these 2007 and 2008 datasets. Results from this three year period ... available. However, once selected, trips are also selected in subsequent years. This analysis indicates ... in future years as further data are added will also be of interest. Author(s): D.A.J. Middleton (New ...
Meeting Document : WG-FSA-10/26 : Author(s): D.A.J. Middleton (New Zealand)