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Consideration of major issues in ecosystem monitoring and management
specific survival 1 year 100s A5 Foraging trip duration 2 months 1–2 days 25–50 A6 Breeding success 2–3 ... Fur seal C1 Foraging trip duration 2–3 months Several days 20–100 C2 Pup growth 2–3 months 2–3 months ... 30–150 Calendar dateP ot en tia l r an ge fr om c ol on y Calendar date Foraging trip ... of krill. At the one extreme, foraging trip duration refl ects the local availability of krill ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 213–232 : Autor(es): Everson, I
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Effects of recruitment variability and natural mortality on generalised yield model projections and the CCAMLR decision rules for Antarctic krill
criteria. From the early 1990s until 2009 the catch by the Antarctic krill fishery remained around 120 ... north and east, including supplying the sometimes CCAMLR Science, Vol. 20 (2013): 81–96 81 EFFECTS ... simula- tions based on proportional recruitment using the Beta distribution. In early trials, a fifth ... criteria at half the precautionary catch limit (Figure 8(a), middle). This study illustrates that bet- ter ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 81–96 : Autor(es): Kinzey, D., G. Watters and C.S. Reiss
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Brief report of the joint Soviet-Australian expedition of the USSR FRV Professor Mesyatsev to the Australian fishing zone around the territory of Heard and McDonald Islands, May-August, 1987
mountains (Banks) have the following names: 1. Youznays (Southern) 2. Shrednaya (Middle) 3 ... .. zapadnaya (Western) 4. Shootchaya (Pike) 5. vostochnaya (Eastern) and further to the east 6. Novaya ... precise positions were charted during the cruise. The fishing ground to the east of Heard Island is an ... productive areas were to the north east from Heard Island and over Bank Youznaya (southern), (Biomass of ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 75-103 : Autor(es): Gherasimchook, V.V., V.N. Brodin, A.V. Kljausov, I.B. Russelo, P.V. Tishkov and N.B. Zaremba
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Biogeographic patterns of benthic invertebrate megafauna on shelf areas within the Southern Ocean Atlantic sector
Southern Ocean habitats into zoogeographical provinces date back to the early 20th century (Koehler ... hand, in stark contrast to the communities immediately to its east, while on the other hand appears ... shelves east of the main chain including Elephant Island and those north of the Antarctic Peninsula ... George Island, west and northwest of Elephant Island and north- east of Joinville Island. Lockhart ...
Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 167–192 : Autor(es): Lockhart, S.J. and C.D. Jones
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Distribution characteristics of krill aggregations in the fishing ground off Coronation Island in the 1989/90 season
-east (500 1O'S to 59° 30'S and 43°30'W to 44°W) and south-west (Figure 1). In the daytime, krill was ... while water temperature was between 0° and 0.5° (Figure 4a). In the north-east fishing ground, mean ... 1990 The fishing ground shifted somewhat to the south-east (Figure 5). Targetted krill swarms were ... phytoplankton (Latogursky et al., 1972). This in turn leads to an increase in swarm density. Low catches 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
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Prey monitoring surveys: a discussion of the characteristics necessary in prey surveys
. Three of the parameters (foraging trip - 379 - duration, chick fledging weight and chick diet ... foraging trip duration a reasonable estimate can be made of the maximum radius of the 'foraging circle ... for the early chick growth period. SURVEY DESIGN The primary aim of the survey is to determine how ... comments on an early draft of this manuscript. - 385 - Table 1. Consideration of predator parameters ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 377-391 : Autor(es): Everson, I.
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Further computations of the consequences of setting the annual krill catch limit to a fixed fraction of the estimate of krill biomass from a survey
/ l2 to 5/12), while the pre-exploitation biomass survey is assumed to take place in the middle of ... middle of the growth season their mass-at-age (E,) is thus: For model 1, the spawning biomass of krill ... . and for model 2: The survey estimate of biomass is made in the middle of the growth season (i.e. mid ... for here by 'pretending' that all these krill are lost to natural mortality on the verge of their ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 81–106 : Autor(es): Butterworth, D.S., G.R. Gluckman, R.B. Thomson, S. Chalis, K. Hiramatsu and D.J. Agnew
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Distribution and relative abundance of Antarctic toothfish (Dissostichus mawsoni) on the Ross Sea shelf
, with some evidence for an ontogenetic migration from east to west as they grow. From the fisheries data ... length, with some evidence for an ontogenetic migration from east to west as they grow. From the ... word ‘season’ refers to the period from December to May, the months of fish- ing in the middle of the ... the area of deep water immediately to the north and east of Ross Island and adjacent to the Ross Ice ... itself. There is some evidence for an ontogenetic migration from east to west along the southern Ross ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 33–51 : Autor(es): Hanchet, S.M., S. Mormede and A. Dunn
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Preliminary appraisal of Antarctic fish selection by the 32/36 bottom trawl combined with various codends
liner was placed on the upper part of the codend, reaching down to the middle of the codend side walls ... . The codend bottom was deprived of its selective properties up to the middle of side walls by placing ... was the badly chosen mesh size, which had lost selectivity ability for this species, and the double ... middle and final part a typical selectivity curve. It was characterized by a gentle sloping towards the ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 1-48 : Autor(es): Zaucha, J.
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Seabird mortality in the Patagonian toothfish longline fishery around Crozet and Kerguelen Islands, 2001–2003
were intrinsically linked to vessels throughout the entire trip (the vessel cannot change fi shing ... methods mid-trip). As a result, ‘vessel’ was considered as a random factor in the mixed models, and all ... , centre-east and southeast). Set number Order in which longlines are set (e.g. no. 1 is set first ... longline fi sheries during a single foraging trip (Weimerskirch et al., 1999). The seasonality observed ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 53–80 : Autor(es): Delord, K., N. Gasco, H. Weimerskirch, C. Barbraud and T. Micol