Search results
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Population demography of Antarctic fur seals: the costs of reproduction and implications for life-histories
consecutive years, including 3 years when several indices showed that food availability was well below average ... . 4. There was no evidence of senescence. Survival rate was not related to year of birth or age, after accounting ... for variation due to pregnancy and calendar year. Survival was reduced as a result of pregnancy which accounted ... reproductive output (ages 5-8 years). 5. Mean pregnancy rate was 0•70 (SD = 0•11) with an interannual range ...
Meeting Document : WG-EMM-95/26 : Author(s): Reid, K., Croxall, J.P., Lunn, N.J., Boyd, I.L.
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The recent decline in recruitment of Gobionotothen gibberifrons in the South Shetland Islands (CCAMLR Subarea 48.1)
extent Antarctic fish stocks recover from exploitation and how natural causes may add to man-made ... a number of years of very low recruitment around Elephant Island and the lower South Shetland Islands ... Antarctic fish stocks recover from exploitation and how natural causes may add to man-made perturbations ... caused a number of years of very low recruitment around Elephant Island and the lower South Shetland ...
Meeting Document : WG-FSA-12/20 : Author(s): K.-H. Kock (Germany) and C.D. Jones (USA)
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Information on the status of fjord Notothenia rossii, Gobionotothen gibberifrons and Notothenia coriiceps in the lower South Shetland Islands, derived from the 2000–2006 monitoring program at Potter Cove
period of 24 years which began in 1983, and at Harmony Cove in the summers of 2001to 2003. The decline ... of N. rossii catches from 1991 to 2006, the actual levels are half of those found in the early 1980s, while ... has continued at Potter Cove from 2000 to 2006, extending a continuous sampling period of 24 years ... of N. rossii catches from 1991 to 2006, the actual levels are half of those found in the early 1980s, while ... of 24 years which began in 1983, and at Harmony Cove in the summers of 2001 to 2003. The decline ... trend of N. rossii catches from 1991 to 2006, the actual levels are half of those found in the early ... to 2006 at Potter Cove (PC), thus extending a continuous sampling period of 24 years which began in 1983 ... factor (years) were highly signifi cant (Table 1). The non-parametric regression of the relative catches ...
Science Journal Paper : CCAMLR Science, Volume 14 (CCAMLR Science, Volume 14) : 83–87 : Author(s): Barrera-Oro, E.R. and E.R. Marschoff
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WG-FSA-12 Information Note
. 6. Social functions Details of various events associated with WG-FSA-12 will be distributed at a later date ... Details of various events associated with WG-FSA-12 will be distributed at a later date. 7. Travel ...
Page : Site Section: Meetings
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Modelling egg and larval transport of Antarctic Toothfish (Dissostichus mawsoni) in the East Antarctic region: Plan
to be fully understood. Especially in early life stage, the process of successful egg/larval transport pattern ... years unique satellite product data and ocean model output data. This work examines not only passive ... to be fully understood. Especially in early life stage, the process of successful egg/larval transport pattern ... years unique satellite product data and ocean model output data. This work examines not only passive ...
Meeting Document : WG-SAM-2019/20 : Author(s): M. Mori, K. Mizobata, T. Okuda and T. Ichii
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WG-EMM-02
/17 Current temperature conditions off South Georgia during recent years (satellite data on Subarea ... population of Béchervaise Island after 12 years of study J. Clarke, K. Kerry, A. Townsend and L. Emmerson ... in eastern Antarctica K. Michael, K. Hill, K. Kerry and H. Brolsma (Australia) WG-EMM-02/55 The winter ... Scientific Interest No. 36 – Eastern Dallmann Bay Submitted by the USA WG-EMM-02/58 Management plan for Site ...
Meeting
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e-sc-xxxi-a06.pdf
... in a given time of year. 2.14 Given the errors in determination of the reported catch, a fishery may need ... , and increasing of the Subarea 48.1 contribution to the total dynamics of fishery in Area 48 in the recent years ... of the changes observed in recent years can be attributed to changes in fishing technology. Krill escape ... shown for 60 mm mesh sizes in previous years; e.g. WG-EMM-11/15 reported that the equivalent ... , and Poland, which is a long- standing krill fishing nation with recent catches of 3 000–8 000 tonnes ... 48.1) under various assumptions. Simulations were run for 21 years with either no fishing, or with ... have either a high proportion or a low proportion of recruits, with fewer years having intermediate ... serially correlated over time, with good recruitment periods of a year or two occurring on approximately a
application/pdf attached to:WG-EMM-12
Meeting Report : WG-EMM-12
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Revision of biological and population parameters for Dissostichus eleginoides on the Heard Island Plateau (Division 58.5.2) based on a comprehensive survey of fishing grounds and recruitment areas in the region
that the variability of recruitment at Heard Island is much greater than originally estimated and that, in recent years ... in the early 1990s. A notable outcome of the 1999 survey is the identification of Ground B as the most ... important area for 7 to 8 year old fish in the Heard Island region. Careful thought will need to be given ... to how best to manage a stock that aggregates in this manner while still juvenile and with some years ...
Meeting Document : WG-FSA-99/68 : Author(s): A.J. Constable, R. Williams, T. Lamb and E. van Wijk (Australia)
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Information on the status of fjord Notothenia rossii, Gobionotothen gibberifrons and Notothenia coriiceps in the lower South Shetland Islands derived from a long-term monitoring program (1983–2006) at Potter Cover
of twenty four years, and at Harmony Cove, Nelson Island, in the austral summers from 2001 to 2003 ... catches from 1991 to 2006, the actual levels are half of those found in the early 1980s, while those ... showed an increase in years 2002-2003, whereas G. gibberifrons was absent in the catches. These trends ... years, and at Harmony Cove, Nelson Island, in the austral summers from 2001 to 2003. The decline ...
Meeting Document : WG-FSA-06/25 : Author(s): E.R. Barrera-Oro and E.R. Marschoff (Argentina)
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Surface water masses, primary production, krill distribution and predator foraging in the vicinity of Elephant Island during the 1989-90 austral summer
of it. A second front was apparent at the eastern side of the study area and was tentatively identified ... at the eastern side of the study area and was tentatively identified as the western end of the Weddell-Scotia ...
Meeting Document : WG-CEMP-90/11 : Author(s): A.F. Amos, J.L. Bengtson, O. Holm-Hansen, V.J. Loeb, M.C. Macaulay and J.H. Wormuth (USA)