WG-CEMP-91/02
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List of participants
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WG-CEMP-91/03
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List of documents
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WG-CEMP-91/04
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Temporal and spatial scales for monitoring CEMP predator parameters
WG-CEMP
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WG-CEMP-91/06
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Changes to standard methods required by the inclusion of gentoo penguin
Secretariat
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WG-CEMP-91/07
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Draft management plan for the protection of seal islands, South Shetland Islands, as a site included in the CCAMLR Ecosystem Monitoring Program
Delegation of the USA
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WG-CEMP-91/08
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A proposal for CEMP predator parameter indices
Secretariat
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WG-CEMP-91/09
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Acquisition and archiving of satellite imagery of sea-ice distribution
Data Manager (CCAMLR)
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WG-CEMP-91/1 Rev. 1
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Provisional Agenda for the 1991 Meeting of the Working Group for the CCAMLR Ecosystem Monitoring Program (WG-CEMP)
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WG-CEMP-91/10
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Development of the CCAMLR Ecosystem Monitoring Program 1985 to 1991
Secretariat
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WG-CEMP-91/11
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AMLR 1990/91 field season report
Delegation of the USA
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WG-CEMP-91/12
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Report of the Workshop on Southern Elephant Seals
SCAR Group of Specialists on Seals
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WG-CEMP-91/13
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Temporal variability in Antarctic marine ecosystems: periodic fluctuations in the phocid seals
J.W. Testa, G. Oehlert, D.G. Ainley, J.L. Bengtson, D.B. Siniff, R.M. Laws and D. Rounsevell (USA)
Резюме:
Three species of seals around Antarctica have shown quasi-cyclic patterns in some aspect of their biology: the age structure of crabeater seals (Lobodon carcinophagus) around the Antarctic Peninsula has shown strong cohorts separated by 4- to 5-yr intervals; juvenile leopard seals (Hydrurga leptonyx) have appeared in unusually large numbers at Macquarie Island, also at 4- to 5-yr intervals; Read More
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WG-CEMP-91/14
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Surveys of breeding penguins and other seabirds in the South Shetland Islands, Antarctica January-February 1987
W.D. Shuford and L.B. Spear (USA)
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WG-CEMP-91/15
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CCAMLR/IWC Workshop on the Feeding Ecology of Southern Baleen Whales progress report
Secretariat
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WG-CEMP-91/16
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Interactions of Antarctic marine mammals and birds with fisheries
K.-H. Kock (Germany)
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WG-CEMP-91/17
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Myctophids in the diet of Antarctic predators
E. Sabourenkov (CCAMLR Secretariat)
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WG-CEMP-91/18
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Diving pattern and performance in relation to foraging ecology in the gentoo penguin, Pygoscelis papua
T.D. Williams, D.R. Briggs, J.P. Croxall (United Kingdom), Y. Naito and A. Kato (Japan)
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WG-CEMP-91/19
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Diving patterns and processes in epipelagic and benthic foraging sub-Antarctic seabirds
T.D. Williams, J.P. Croxall (United Kingdom), Y. Naito and A. Kato (Japan)
Резюме:
We contrast the depth, duration and pattern of diving in the epipelagic-foraging Gentoo Penguin (Pygoscelis papua) and the benthic-foraging Blue-eyed Shag (Phalacrocorax atriceps). The daily foraging period was 8 hours in both species, but Gentoos spent 50% of this time diving compared to 20% in Shags. Shags had longer surface intervals between dives than Gentoos, with a higher incidence of Read More
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WG-CEMP-91/20
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Annual variation in return rate, mate and nest site fidelity in breeding gentoo and macaroni penguins
T.D. Williams and S.R. Rodwell (United Kingdom)
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WG-CEMP-91/21
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Age distribution of breeding female Antarctic fur seals in relation to changes in population growth rate
I.L. Boyd, N.J. Lunn, P. Rothery and J.P. Croxall (United Kingdom)
Резюме:
The age distribution of breeding female Antarctic fur seals at Bird Island, South Georgia, in 1988 was compared with the age distribution of a sample obtained in 1971-1973. The mean age in 1971-1973 was 7.41 (SE = 0.26) years and in 1988 it was 6.93 (SE = 0.20) years. After correction for age-dependent arrival time at the pupping beach in 1988, the mean age was 6.22 (SE = 0.14 years), which Read More
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WG-CEMP-91/22
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Pupping-site fidelity of Antarctic fur seals at Bird Island, South Georgia
N.J. Lunn and I.L. Boyd (United Kingdom)
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WG-CEMP-91/23
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Diving behaviour of lactating Antarctic fur seals
I.L. Boyd and J.P. Croxall (United Kingdom)
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WG-CEMP-91/24
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Time budgets and foraging characteristics of lactating Antarctic fur seals
I.L. Boyd, N.J. Lunn and T. Barton (United Kingdom)
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WG-CEMP-91/25
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Krill catches and consumption by land-based predators in relation to distance from colonies of penguins and seals in the South Shetlands and South Orkneys, 1987-1990
D.J. Agnew (Secretariat)
Резюме:
Zones of 20 km width are defined around selected colonies of penguins distributed around the coasts of the South Shetland and South Orkney islands. Krill catches in these zones are shown to have a consistent pattern in Subarea 48.1 but an unpredictable distribution in 48.2, probably as a result of oceanographic conditions. About 50% of the catch in 48.1 from December to March was taken within Read More
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WG-CEMP-91/26
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Investigation of the marine living resources in Antarctic waters: a collection of short papers
Delegation of the USA
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WG-CEMP-91/27
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Prospects for a workshop on methods to study at sea behavior of marine mammals and birds
J.L. Bengtson, Convener, WG-CEMP
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WG-CEMP-91/28
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Increases in Antarctic penguin populations: reduced competition with whales or a loss of sea ice due to environmental warming?
W.R. Fraser, W.Z. Trivelpiece, D.G. Ainley and S.G. Trivelpiece (USA)
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WG-CEMP-91/29
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Census techniques for grey seal populations
A.J. Ward, D. Thompson and A.R. Hiby (United Kingdom)
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WG-CEMP-91/30
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Mixed function oxidase activity and chlorinated hydrocarbon residues in Antarctic seabirds: south polar skua (Catharacta maccormicki) and Adelie penguin (Pygoscelis adeliae)
S. Focardi, C. Fossi, C. Leonzio, L. Lari, L. Marsili (Italy), G.S. Court and L.S. Davis (New Zealand)
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WG-CEMP-91/31
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Identification of sex of Adelie penguins from observation of incubating birds
K.R. Kerry, J.R. Clarke and G. Else (Australia)
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WG-CEMP-91/32
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Estimation of primary organic matter production intensity and its interannual changeability in the Cooperation Sea region
A.T. Kochergin (USSR)
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Complexity of direct determination o£ production intensity obliges the investigators to use indirect methods.In this work the method of calculation is based on the estimate of winter biogenous matter accumulation decrease in the upper layer,comparatively with underlayer,in summer period.
The calculation showed considerable interannual changeability of production intensity,having the Read More
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WG-CEMP-91/33
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Foraging behavior and reproductive success in chinstrap penguins: the effects of transmitter attachment
Delegation of the USA
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WG-CEMP-91/34
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Activities related to CEMP
Delegation of Spain
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WG-CEMP-91/35
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Modeling the energetics of Adelie penguin populations
Delegation of the USA
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WG-CEMP-91/36
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Comments of WG-CEMP-91/8 by Dr P. Rothery (BAS)
P. Rothery (BAS)
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WG-CEMP-91/37
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Estimates of prey requirements for krill predators
J. Croxall (United Kingdom)
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WG-CEMP-91/5 Rev. 1
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The use of morphometric parameters for the determination of sex of Adelie penguins
K.R. Kerry, D.J. Agnew, J.R. Clarke and G.D. Else (Australia)
Резюме:
The ability to determine the sex of Adélie penguins by discriminant analysis of morphometric parameters was examined for breeding birds of known sex at Bechervaise Island near Mawson Station, Antarctica (latitude 67°36’S, longitude 62°53’E). It was found that 89 % of birds could be correctly sexed by comparing the discriminant score D = 0.582 (bill length) + 1.12 (bill depth) + 0.219 (flipper Read More
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