Search results
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Assessing the power to detect systematic change in Adélie penguin foraging trip duration
Paper Title: Assessing the power to detect systematic change in Adélie penguin foraging trip ... duration Abstract / Description: Models of variability in Adélie penguin foraging trip durations were ... variation was known to occur. Variability among trips and penguins was greater in the crèche stage ... or trips sampled diminished rapidly when sample sizes were greater than 30 penguins and three trips per ... and post- impact year means, then post prey y− is normally dis- tributed with mean δ and variance ... ASSESSING THE POWER TO DETECT SYSTEMATIC CHANGE IN ADÉLIE PENGUIN FORAGING TRIP DURATION C. Southwell ... trip durations were constructed and fitted to data collected at Béchervaise Island over a 12-year ... period when only natural variation was known to occur. Variability among trips and penguins was greater ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 201–215 : Author(s): Southwell, C., J. Clarke and L.M. Emmerson
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Results of Soviet investigations of the distribution and ecology of pelagic squids (Oegopsida) in the Southern Ocean
of the Northwest Atlantic, die particularly in the winter-sprin~ season (Froerman, 1983). Simila.r re11 ... . Morotheuthis knipovitchi (Filippova, 1972) is known to occur {n the Southern Ocean according to data ... in the diet of some specimens, Kondakovia longimana (Filippova, 1972) is known to occuc in the Southecn ... glacialia (Chun, 1906) (synonyms G.aspera, Filippova, 1972, Crystalloteuthis glacialis (Chun, 1906 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/2 (Selected Scientific Papers, SC-CAMLR-SSP/2) : 79-111 : Author(s): Lubimova, T.G.
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Book review: Fish and Fish Resources of the Antarctic
expeditions in Antarctica. The introduction notes that until the 1960s Antarctic waters were still among ... , largescale multidisciplinary studies here in the early 1960s. Starting from the first South Atlantic ... research expeditions in Antarctica. The introduction notes that until the 1960s Antarctic waters were still ... began regular, largescale multidisciplinary studies here in the early 1960s. Starting from the first ... the 1960s Antarctic waters were still among the most poorly studied regions from the point of view ... out in the 1960s and more fully described in papers by A.P. Andriashev. Dr Shust notes that results ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 165–168 : Author(s): Shust, K.V
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Natural mortality rate in the mackerel icefish (Champsocephalus gunnari) around South Georgia
in the 1960s and large-scale catches have been reported from 1970 onwards. Everson (1978) indicates ... from 1972 used to devise a separate age composition for each of the four seasons 1964/65, 1966/67 ... from a series of randomly located hauls around South Georgia during the 1972 austral summer and from ... , such as from growth equations, to corroborate the results. The age/length key from 1972 was obtained from ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 245–257 : Author(s): Everson, I
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Differences in distribution and population structure of krill (Euphausia superba) between penguin and fur seal foraging areas near Seal Island
the day. With regard to body size and maturity of krill in the inshore foraging areas, middle-sized krill ... foraging areas, middle-sized krill (modal length 43 mm), which consisted mainly of non-gravid krill, were ... foraging areas, middle-sized kriU (modal length 43 mm), which consisted mainly of non-gravid kriU, were ... 1 to 2 n miles) until a fur seal or penguin departed to sea on a feeding trip; at that time, the ship followed ... trip. Location of the ship was monitored every 15 minutes by radar and a satellite navigation system ... ) (six trips), one macaroni penguin (Eudyptes chrysolophus) and one female fur seal (Arctocephalus ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 273–285 : Author(s): Ichii, T., H. Ishii, J.L. Bengtson, P. Boveng, J.K. Jansen and M. Naganobu
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An assessment of CCAMLR measures employed to mitigate seabird mortality in longlining operations for Dissostichus eleginoides around South Georgia
aboard the BF Cisne Verde. This consisted of a retaining line, and a mother line made up of a series ... . Each coil also carried 52 hooks, each hook on a secondary line attached to the mother line. Hooks ... to bring in the retaining and mother line simultaneously. Generally the winch for the mother line ... place, and as far as possible to cover the early, middle and late stages of Assessment of CCAMLR ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 217–230 : Author(s): Ashford, J.R. and J.P. Croxall
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A hypothetical life cycle for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea region
the Ross Sea shelf; or eastwards with the eastern Ross Sea gyre, settling out along the continental slope ... with the eastern Ross Sea gyre, settling out along the continental slope and shelf to the east of the Ross Sea ... to the north of the Ross Sea (SSRU 881C), whilst the fifth was recaptured a dis- tance of 2 300 km ... with the eastern Ross Sea gyre, settling out along the continental slope and shelf to the east of the Ross Sea ... extended into Subarea 88.2 (Hanchet et al., 2007) and a research trip was carried out into Subarea 88.3 ... two tagging programs in Subarea 88.1. Over 4 500 D. mawsoni have been tagged since 1972 by US ...
Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 35–53 : Author(s): Hanchet, S.M., G.J. Rickard, J.M. Fenaughty, A. Dunn and M.J. Williams
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Antarctic krill and ecosystem management – from Seattle to Siena
). As originally postulated by Marr (1962), the effects of this circulatory system could link krill populations ... likely to infl uence krill distribution and abundance is sea-ice (Mackintosh, 1972, 1973). In its fi ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 175–212 : Author(s): Miller, D.G.M
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Integrating Count Effort by Seasonally Correcting Animal Population Estimates (ICESCAPE): a method for estimating abundance and its uncertainty from count data using Adélie penguins as a case study
site distribution contributing to the aggregate dis- tribution has already been formed using sam ... fractions were assumed to be 1). The ICESCAPE estimation procedure was applied to the adult data, with dis ... of uncertainty (e.g. Law, 1962; Ensor and Bassett, 1987). In the interests of promoting a precau- tionary ... of sites within a speci- fied spatial area to derive a regional estimate of abundance. On 17 November 1972 ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 213–227 : Author(s): McKinlay, J., C. Southwell and R. Trebilco
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Biological characteristics of Antarctic fish stocks in the southern Scotia Arc region
of the 1960s, principally by fleets from the ex-Soviet Union and other former Eastern Bloc countries ... ; Permitin and Tarverdiyeva, 1972; Kock, 1986; Agnew and Moreno, 1992; Moreno et al., 1996; Agnew et al ... ., 1998) and to some extent around Elephant Island (eastern part of Subarea 48.1) (Kock, 1986, 1989a ... South Georgia and Shag Rocks, has been extensively studied by trawl surveys since the mid- 1960s ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 1–41 : Author(s): Kock, K.-H., C.D. Jones and S. Wilhelms