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1. Assessing the power to detect systematic change in Adélie penguin foraging trip duration

   test for change based on the difference between pre- and post-impact means generally performed better ... variability among years was greater in the guard stage. Estimates of variability were used to explore the ... or trips sampled diminished rapidly when sample sizes were greater than 30 penguins and three trips ... per penguin. Statistics were developed to test for three forms of change (step, trend and ramp). A ... that mean foraging trip duration is constant for years i = 1,2,…,a prior to an impact (i.e. Mi = M0 ... of data on the logarithmic scale, in the mean for years a+1 to a+b minus the mean for years 1 to a ... regression relation based on the logarithms of the mean trip durations for the years, as log(Mi) = α + βxi ... on a variable representing years. The statistic 2ˆsβ is an estimator of 2 2 2 ˆ / ( ) a b y ii a ...

   Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 201–215 : Autor(es): Southwell, C., J. Clarke and L.M. Emmerson

2. Distribution characteristics of krill aggregations in the fishing ground off Coronation Island in the 1989/90 season

   October 1989 to February 1990. An echo sounder was used to assess the characteristics of krill ... . Wind force had no direct or indirect influence on the types of krill aggregations or their density. The ... which in turn led to an increase in krill concentration. The biological parameters of krill examined ... should be regarded as preliminary since they were based on data from one season only. Distributional ... carried out, catchability was calculated on the basis of statistical probability models used for fishing ... trawl were evaluated for each of these time intervals (Table 2). Data on catch per hour trawling are ... . Wind force for this period decreased to 2-3 on the Richter scale while water temperature ranged from 0 ... tonnes (Tables 2 and 3). Wind force for the period increased from 2 to 4 on the Richter scale and ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 49–73 : Autor(es): Kasatkina, S.M. and V.I. Latogursky

3. A fine-scale model of the overlap between penguin foraging demands and the krill fishery in the South Shetland Islands and Antarctic Peninsula

   for a number of reasons, an alternative method of calculating an index of fishery-predator interaction ... (December to March) as an index of overlap between the potential foraging areas of penguins and the ... has been developed. The new index reflects the functional interaction between these two utilisers of ... the krill resource and is based on a detailed model of penguin foraging patterns combined with catch ... analysis, mean foraging distance for chinstrap penguins was increased by 50% (from 20 to 30 km), although ... Islands). As this index has proven unsuitable for a number of reasons, an alternative method of ... functional interaction between these two utilisers of the krill resource and is based on a detailed model of ... CCAMLR for a number of years,. especially for those predators which are restricted to land-based ...

   Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 99–110 : Autor(es): Agnew, D.J. and G. Phegan

4. Telemetry monitoring of ecological resources

   of telemetry and location monitoring are discussed. Limitations on weight, communication range and ... observer in an aircraft, ranges are about two to five times greater. Transmitters on larger a~imals ... on birds for short-term applications. Usual life of adhesive attachment on birds is about 30 days ... . Range for an implanted transmitter is typically 30 percent of the range which would be received from ... transmitters weighing approximately two kg and lasting about one year are routinely being deployed on ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 495-511 : Autor(es): Kuechle, V.B.

5. Comparison of age readings from scales and otoliths of the Patagonian toothfish (Dissostichus eleginoides) from South Georgia

   test for paired data (Ts = 0.256, n = 59) conducted on the remaining 56% showed that differences in age ... compared for 105 specimens of the Patagonian toothfish (Dissostichus eleginoides) from the South Georgia ... estimates between the two methods were not significant. Otoliths frequently appeared totally opaque, making ... appropriate for determining the age of D. eleginoides because it does not underestimate age and is the most ... . eleginoides is an opportunistic feeder that growth parameters for specimens collected in takes advantage of ... about seven years, followed by a period when an increase in thickness is the main result of growth ... soaked for one week in a solution of 20% alcohol (96"), 5% glycerin, a few drops of domestic detergent ... fish. On the other hand, Young et al. (1992) demonstrated that for D. eleginoides the greatest ...

   Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 191–203 : Autor(es): Cassia, M.C

6. Surveys of breeding penguins and other seabirds in the South Shetland Islands, Antarctica, January-February 1987*

   to have been about 40% overall increase in the chinstrap population in the last 20-30 years, about ... Living Resources Program in 1987 provided data on the number, size, and location of penguin and Antarctic ... available nesting habitat in 1987. For the same reason, at least in part, other species of breeding seabirds ... Memorandum NMFS Antarctic Marine Living Resources Program (AMLR)) File:  20-Shuford-and-Spear.pdf ... -30 years, about three-fourths of the difference between our counts and previous ones is due to more ... a jugula ire ait augmente globalement d'a peu pres 40% au cours des dernieres 20-30 annees ... 20-30 anos, aproximadamente tres cuartas partes de la diferencia entre nuestros recuentos y los ... rro rrpeAblAYlI\l1M OlleHKaM. XOTH, KaK Ka)KeTCH, 3a rrOCJIeAHl1e 20-30 JIeT o611\ee KOJII1QeCTBO ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 449-451 : Autor(es): Shuford, W.D. and L.B. Spear

7. The foraging range of Adélie penguins at Béchervaise Island, Mac. Robertson Land, Antarctica, and its overlap with the krill fishery

   trips (two females and four males) during the incubation period (November to December 1991) and 17 trips ... (four females and two males) throughout January 1992 when birds were feeding chicks. Most birds made ... point. Birds feeding chicks also made journeys of one to two days ranging up to 12 km after 17 January ... . There is potential for overlap between the foraging range of Adélie penguins breeding along the Mac ... Toyocom 2038 PTf set on a 50s repeat transmission cycle. These were packaged together with their ... . 1992. The use of an automated weighing and recording system for the study of the biology of Ad6lie ... satellite tracking using the ARGOS system. Birds were tracked over four foraging trips (two females and ... two males) throughout January 1992 when birds were feeding chicks. Most birds made foraging trips to ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 337–344 : Autor(es): Kerry, K.R., J.R. Clarke and G.D. Else

8. Results of Soviet investigations of the distribution and ecology of pelagic squids (Oegopsida) in the Southern Ocean

   description is also suggested for M. hamiltoni, the data on which come only from beaks found in sperm whale ... specimens of that total were identified as Brachioteuthis riisei. In recent years (1978-1984) the collection ... was increased by two or three dozen specimens mostly identified as the little-studied Alluroteuthis ... in Antarctic waters and data on squid beaks taken from sperm whale stomachs were also considered. Up ... habits of sperm whales in the Southern Ocean for 13 years were snmmed up, the scope of material on M ... web. Such description is also suggested for M. hamiltoni, the data on which come only from beaks ... years ( 1978-1984), the collection was increased by two or three do%en specimens taken during ... the mantle is up to 20 cm. There are no data on the feeding habits. H. eltaninae is characterised as ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/2 (Selected Scientific Papers, SC-CAMLR-SSP/2) : 79-111 : Autor(es): Lubimova, T.G.

9. Estimation of krill (Euphausia superba) mortality and production rate in the Antarctic Peninsula region

   ratio of 0.88 to 0.94 for different years. The exchange rate of water masses and krill biomass within ... Antarctic Peninsula region Abstract / Description:  A net sampling survey for krill was carried out by RV ... data of an identical survey with RV Polarstern in 1987/88. Seasonal variation between summer and winter ... one summer season was roughly estimated as two times from which follows a maximum total effective ... methodological approaches. For a long time krill was thought to live only for two or three years and spawn only ... varied between Z = 0.88 and 0.96 for data from two different years. Natural mortality and the growth ... Antarctic Peninsula survey area for different years. 30 • PN87/88 29 oME89/90 28 z27 .E 26 25 ... three year life span of krill. Their age group 1 (20 to 43 mm) included the two age groups 1+ and 2 ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 159–176 : Autor(es): Siegel, V.

10. Age–length composition of mackerel icefish (Champsocephalus gunnari, Perciformes, Notothenioidei, Channichthyidae) from different parts of the South Georgia shelf

    the South Georgia area. An analysis of the spatial distribution of C. gunnari size and age groups over ... similar age-length composition for young fish inhabiting areas to the west of the island and near Shag ... Rocks. Differences were observed between those those two groups and the eastern group. The larger number ... the age of 2-3 years. It has been found that, by number, recruits represent the largest part of the ... addition, for those years for which data on age-length composition were available, the size composition ... years of its life cycle on the western shelf of South Georgia and at Shag Rocks. These two parts of the ... sometimes observed to be completely absent for several years (e.g. 1982 year class) (Figure 4). A ... trawl was towed at 3-3.5 knots for 30 minutes. Catch- ability was assumed to be 100%. Approximately ...

    Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 133–146 : Autor(es): Frolkina, G.A

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