Search results
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A three-frequency method to determine the abundance and the size of two euphausiid species (Euphausia superba and Euphausia crystallorophias)
role in the Ross Sea pelagic ecosystem (Marr, 1962; Azzali et al., 1999). To estimate the abundance ... and to the net avoidance (Wiebe, 1972; Everson and Bone, 1986). This last bias affects particularity the hauls ... in the Ross Sea pelagic ecosystem (Marr, 1962; Azzali et al., 1999). To estimate the abundance of each stock ... uncertainties of net samplings arise due to the selectivity of the net and to the net avoidance (Wiebe, 1972 ...
Meeting Document : WG-EMM-01/63 : Author(s): M. Azzali, J. Kalinowksi, G. Lanciani and I. Leonori (Italy)
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Foraging trip duration in male and female macaroni penguins at Bouvetøya
Abstract: The CEMP Standard Methods for monitoring foraging trip duration in Macaroni Penguins ... , while the females make frequent foraging trips. We analysed data from 17 males instrumented with VHF ... -transmitters in the middle of the brooding period (chick age 12-18 days) and 17 females instrumented ... at the start of the creching period (chick age 25-30 days). Males made their first foraging trips at the start ...
Meeting Document : WG-EMM-98/28 : Author(s): F. Mehlum, K. Isaksen and V. Bakken (Norway)
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Foraging energetics of Antarctic fur seals in relation to changes in prey availability
at parturition in 1984, and both pup mortality and the proportion of pups that died from starvation were double ... and the proportion of pups that died from starvation were double the 1985 values. Female condition at parturition ... seal foraging trips were twice as long in 1984 as in 1985 and total mass-specific energy expended ... by females during these trips was significantly greater. In addition, females were significantly lighter ...
Meeting Document : SC-CAMLR-VIII/BG/13 : Author(s): Delegation of United Kingdom
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The effects of monitoring procedures on Adélie penguins
resulted in increased foraging trip durations and reduced breeding success. Attachment for single ... or multiple foraging trips post-hatching caused no significant increase in foraging trip durations ... devices during the incubation period resulted in increased foraging trip durations and reduced breeding ... success. Attachment for single or multiple foraging trips post-hatching caused no significant increase ... . Incidence of nest failure is indicated. * Nest failure due to late return of PTT carrier ** Chicks died ... foraging trip durations and reduced breeding success. Attachment for single or multiple foraging trips ... post-hatching caused no significant increase in foraging trip durations. No reduction in fledging ... , 1991). The overall outcome tends to be a n increase in foraging trip durations (Wilson et al., 1989 ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 155–164 : Author(s): Clarke, J. and K. Kerry
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Demographic characteristics of the Adélie penguin population on Béchervaise Island after 12 years of study
in eastern Antarctica after 12 years of monitoring under the CCAMLR Ecosystem Monitoring Program (CEMP ... in the Ross Sea studied during the 1960s and 1970s (Ainley et al., 1983), and in relation to other CEMP ... analysed for the Béchervaise Island Adélie penguin colony in eastern Antarctica after 12 ... during the 1960s and 1970s (Ainley et al., 1983), and in relation to other CEMP parameters, environmental ... rv iv or sh ip b y br ee di ng s ea so n fo r a ll m al es p oo le d. 19 91 ... b y br ee di ng s ea so n fo r a ll al l f em al es p oo le d. 19 91 /9 2 19 92 ... for the Béchervaise Island Adélie penguin colony in eastern Antarctica after 12 years of monitoring under the CCAMLR ... a declining Adélie penguin population in the Ross Sea studied during the 1960s and 1970s (Ainley et al., 1983 ...
Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 53–74 : Author(s): Clarke, J., L.M. Emmerson, A. Townsend and K.R. Kerry
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Understanding CCAMLR’s Approach to Management
with stern slipways. Pelagic mother ship/catcher operations became the most common type of whaling ... and the number of mother ships and catcher vessels increased rapidly. Whale catches peaked in 1930/31 and 1937 ... in the 1960s and 1970s. However, it seems reasonable to assume that, prior to Antarctic whaling, 1–1.5 million ... -Antarctic islands since the 1960s. The largest populations are at the Crozet Islands (700 000 pairs), South ...
Document : Site Section: Publications
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Telemetry monitoring of ecological resources
application was location monitoring of animals in the mid 1960s. Monitoring activity has steadily increased ... they are lost by feather breakage or molt. Clipping the transmitter to the tail feathers is also an option ... will be lost during the animals molt and thus have a useful life of a year or less. Successful attachment ... in the mid-1960s 20 • It used two mechanically rotating antenna arrays. Originally data were recorded ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 495-511 : Author(s): Kuechle, V.B.
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History of the Convention
by the 1972 Convention for the Conservation of Antarctic Seals (CCAS), which aimed to promote and achieve ... 1960s and mid-1970s, along with the emergence of interest in the large-scale exploitation of Antarctic ... by the 1972 Convention for the Conservation of Antarctic Seals (CCAS), which aimed to promote and achieve ... 1960s and mid-1970s, along with the emergence of interest in the large-scale exploitation of Antarctic ...
Page : Site Section: The Organisation
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Differentiation of independent populations of Antarctic krill
circulation which carries the krill from the south to the north and vice versa. J.W.S. Marr (Marr, 1962 ... ) population of E. superba" (Makarov, 1972). In a later paper (Makarov, Maslennikov, 1975) after ... the eastern part of the Weddel Drift to the coastal current waters at post-larval stages. Apart from ... distribution. Polar Records, vol. 18, N 112, p. 15-23. Makarov R.R. 1972. Life cycle and distribution ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 275-281 : Author(s): USSR
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Winter distribution of chinstrap penguins from two breeding sites in the South Shetland Islands of Antarctica
was lost in April, a distance of 800 km from its breeding colony. The bird tagged in the 2000 winter ... continued towards the South Sandwich Islands until its signal was lost at 580 30’ S, 360 10’ W in late July ... the expansion of this species in numbers and range in the middle of the past century. Author(s): W.Z ... was lost in April, a distance of 800 km from its breeding colony. The bird tagged in the 2000 winter ...
Meeting Document : WG-EMM-06/17 : Author(s): W.Z. Trivelpiece, S. Buckelew, C. Reiss and S.G. Trivelpiece (USA)