Résultats de la recherche
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Modelling variability and estimating power to detect change in Adélie penguin fledgling weights
year, but there was no evidence that the rate of decline differed between years. A consequence of this ... weight data were used to examine the power to detect a change in fledgling weights after an impact. The ... statistical models were developed from first principles and incorporated both within- and between-year ... or decrease after an impact. Fledgling weight was found to decline through the fledging period each ... birds, or (c) 30 birds each year. Change detected for three to five years of monitoring after change ... than 30 birds each year. This is the case for both one- and two-tailed tests with a power greater ... from an overall mean weight of 3 139 g. Estimates presented for 50 birds weighed each year. Change ... , and there was limited gain from weighing more than 30 birds each year. There is a threshold for ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 191–200 : Auteur(s): Emmerson, L.M., C. Southwell and J. Clarke
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CCAMLR MPAs and the global climate and biodiversity crisis
Performance Review Panels (2008 and 2017, respectively) made recommendations for CCAMLR to advance its MPA ... targets call for a global network of MPAs to curb biodiversity loss, and both the first and second CCAMLR ... CCAMLR MPAs. This has implications not only for the conservation of marine life in the Convention Area ... bulk of a representative system of MPAs by 2020, specifically recommending that CCAMLR: Acknowledges ...
Meeting Document : CCAMLR-38/BG/44 : Auteur(s): Submitted by ASOC
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Dynamic model of krill Euphausia superba swarm
(Okubo, 1980, 1986). It was assumed that the above mentioned model can also be applicable to krill swarms ... normally used for fish groupings. Author(s): Kalinowski, J., Azzali, M. Title: Dynamic model of krill ... Abstract: During the Italian Antarctic Expeditions to the Ross Sea, in the years 1989- 1994 ...
Meeting Document : WG-EMM-95/68 : Auteur(s): Kalinowski, J., Azzali, M.
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On reproduction of Electrona carlsbergi (Tåning)
WG-FSA-90/20 ON REPRODUCTION OF ELECTRONA CARLSBERGI ... in experimental conditions to count for E. carlsbergi the number of eggs in one batch. An attempt ... Condition Stage (mg) Coefficient (%) I 12-30 0.1-0.2 Oogonia Juvenile IT 40-90 0.5-1.1 Oogonia ... the Antarctic Convergence, wherein it forms concentrations during the major part of the year (Hulley ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 397–409 : Auteur(s): Mazhirina, G.P.
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Volume 5: CCAMLR. 1993. Statistical Bulletin, Vol. 5 (1983–1992). CCAMLR, Hobart, Australia.
period used is the split-year 1 July to 30 June. Split':yeardata aresh()~n. under the calender year in ... which the split-year ends; for example, 1978 indica~es:the split7y~ar:' . " " , .. ' ,", 1 July 1977 ... combination of sub areas in any year following 1986 were chosen for this section. Cv) 3.2 Tables 3, 4 ... 1983 to 1992 are included in the present volume, and are the most correct data for these years ...
Document : Site Section: Publications
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Report of the Workshop on data and modelling issues relevant to the planning of a potential Marine Protected Area (MPA) east of the zero meridian in the Weddell Sea (MAUD)
Abstract: The workshop was convened to follow up the agreement in the 2018 meeting of CCAMLR on ... an approach to facilitate progress on the further development of the Weddell Sea MPA proposal. In its ... Members to further collate and enhance information for the sub-area east of the prime meridian over the ... the available data, gaps in data and future priorities for data collection. As part of this objective ...
Meeting Document : WG-EMM-2019/14 : Auteur(s): Delegation of Norway
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Natural mortality rate in the mackerel icefish (Champsocephalus gunnari) around South Georgia
age structure and growth parameters are used. It is concluded that only in the three earliest years ... , 195 1, 1964 and 1966, do the data reflect an unexploited population. The best estimate of M from ...
Meeting Document : WG-FSA-97/05 : Auteur(s): Everson, I.
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Feasibility of trawl surveys to estimate abundance of juvenile toothfish in Subarea 88.1
conducting trawl surveys for juvenile toothfish in Subarea 88.1 (Ross Sea). Potential problems including a ... , were considered using data from published and unpublished literature, the exploratory longline fishery ... average over the last three years, 63% of the seabed area from 0–600 m depth was not fishable in January ... –February because of ice. Ice cover varied greatly between years, with the untrawlable area ranging from 31 ...
Meeting Document : WG-FSA-SAM-04/07 : Auteur(s): Wood, B.A., ODriscoll, R.L., Hanchet, S.M.
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Size and density of krill layers fished by a Japanese trawler in the waters north of Livingston Island in January 1988
10 20 30 40 50 60 70 80 NET V 0 L U MED ENS IT Y ( g. m-3 ) Figure 3: Frequency distributions of ... -operative survey between RV Kaiyo Maru and a Japanese trawler was conducted from 17 to 20 January 1988 on ... the fishing ground north of Livingston Island (Figure 1). A total of 30 experiments on TS measurement ... including 30 co-operative experiments, was provided by the trawler. The number of krill aggregations per ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 339–345 : Auteur(s): Endo, Y. and Y. Shimadzu
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Preliminary analyses of data collected during experimental phases of the 1994/95 and 1995/96 Antarctic crab fishing seasons
suggested that depletion estimators will not be appropriate tools for estimating local abundances of P ... liberty for about one to five weeks. The recaptured crabs had minimum movement rates of 0.08 to 0.25 n ... miles/day. Mark-recapture estimates of standing stock and density were made for the area around Phase 2 ... attempts were made to account for biased sampling of recaptured crabs and the movement of crabs away from ... experiments, CCAMLR INTRODUCTION The Commission has adopted an experimental harves t regime (EHR) for ... extended (in a slightly revised format) for another three f ishing seasons (to the 1997/98 split-year ... ) provided a formula for making an unbiased estimate of population size ( 6 ) from mark-recapture data ... as unmarked crabs; in Table 5. An attempt was made to account for Movement Rate (n mile/day) 0.08 ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 141–159 : Auteur(s): Watters, G