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Consideration of major issues in ecosystem monitoring and management
for bringing these various components together as an ecosystem approach to management is discussed. File ... components together as an ecosystem approach to management is discussed. ... Recruitment normal 50% Survivorship 0 1000 2000 3000 4000 0 10 20 30 40 50 60 70 80 90 100 Year Po pu ... by Hewitt (2000), who defi ned a proportional recruitment index that was derived by comparing year-class ... trip duration 2–3 months Several days 20–100 C2 Pup growth 2–3 months 2–3 months 30–150 Calendar dateP ... . A B C A B C (a) (b) 221 Ecosystem monitoring and management 90% Survivorship 0 5000 10000 15000 0 10 20 30 40 50 60 ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 213–232 : Author(s): Everson, I
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Management and assessment options for the crab fishery around South Georgia
options for the crab fishery around South Georgia together with the requirements of Article I1 ... animals. The size at which moulting occurs less than once a year can often be simply estimated and gives ... fishery in Subarea 48.3 with specific reference to Article I1 of the CCAMLR Convention. In the final ... part of the stock. The target for the Alaskan king crab is between 20 and 60% depending on whether ... / Description: A new fishery for the lithodid crab, Paralomis spinosissima, started in Subarea 48.3 in 1992 ... . The fishery is also new to CCAMLR, both in terms of the species and fishing gear. We provide an ... overview of the management options for crab fisheries in general and then consider these options in the ... in addition to the 'size-sex-season' controls. Implementation of both sets of controls ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 193–202 : Author(s): Basson, M. and D.D. Hoggarth
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A first attempt at an assessment of the Patagonian toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands EEZ
in Table 5, together with those for projections to 2010 and to 2020 under a future constant annual catch ... in C PU E tr en d 24 2 97 (2 0 20 1; 3 4 54 3) 30 0 79 -2 .9 36 84 8 0. 39 ... Figure 1: Population model fi ts and 20-year projections in terms of both the spawning and exploitable ... 2009 2012 2015 2018 2021 Year Bi om as s (t) 0 400 800 Exploitable biomass projections for base ... eleginoides) resource in the Prince Edward Islands EEZ Abstract / Description: The history of the fishery for ... Patagonian toothfish (Dissostichus eleginoides) in the Prince Edward Islands Exclusive Economic Zone (EEZ) is ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 11–32 : Author(s): Brandão, A., D.S. Butterworth, B.P. Watkins and D.G.M. Miller
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Towards an initial operational management procedure for the krill fishery in Subareas 48.1, 48.2 and 48.3
of krill over a 20-year harvesting period from falling below 60% of its average unexploited level; subject ... that TAC reductions may prove necessary during the 20-year period considered. Simulation tests, including ... that TAC reductions may prove necessary during the 20-year period considered. Simulation tests, including ... for the simulation testing of procedures, and an operational definition of CCAMLR Article II to provide criteria ... of krill over a 20-year harvesting period from falling below 60% of its average unexploited level; subject ... that T AC reductions may prove necessary during the 20-year period considered. Simulation tests, including ... increase by a certain percentage (cr) each year over the balance of the 20-year period that is considered ... to prevent the expected lowest biomass of kriU over a 20-year harvesting period from falling below 60 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 189–219 : Author(s): Butterworth, D.S.
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Antarctic krill and ecosystem management – from Seattle to Siena
documenting developments during CCAMLR’s first 20 years of existence. File: 12miller.pdf ... ), with the three papers documenting developments during CCAMLR’s first 20 years of existence. ... to be consistent with the objectives of the CAMLR Convention, particularly its Article II. Emphasis is given ... to be consistent with the objectives of the CAMLR Convention, particularly its Article II. Emphasis is given ... ), with the three papers documenting developments during CCAMLR’s fi rst 20 years of existence. Résumé Il s’agit ... a 20-year period (where Y = yield and B0 = unexploited biomass). Because the model is run many times ... a 20-year period of harvesting, should be equal to 10%’. This approach required an estimate of pre ... with the objectives of the CAMLR Convention, particularly its Article II. Emphasis is given to the initiation ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 175–212 : Author(s): Miller, D.G.M
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Chilean krill fishery: analysis of the 1991 season
ro () 30 ....... 0 Q) 20 O'l ctl -10 c Q) Q 0 "-Q) (L 1977 1979 1981 1983 1985 1987 1989 ... .. --,-----, .. ---'-----------;'t;--'---"??--------"'" ;§ l Year average = 108 J 40 -+-----, 1 5 10 15 20 25 Fishing day (Starting 20/02/91) Figure 2: Total ... 15 20 25 30 35 Fishing day (Starting 20/02/91) Figure 7: Daily average haul depth Cm) during 1991 ... .H--r i+f 111111-, L~~j r 1 TI r I n r o 1 5 10 15 20 25 30 35 Fishing day (Starting 20/02/91) Figure ... data and its use in studying small-scale spatial distribution of catches. The results show that krill ... fishing in Subarea 48.1 is particularly intense near CEMP sites. Other ways of using of haul-by-haul data ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 273–287 : Author(s): Marín, V.H., A. Mujica and P. Eberhard
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Editorial
of the CCAMLR Scientific Committee. Over those 30 years, several thousand scientific papers have been presented ... striking changes over the past 30 years is the increase in the number of scientific journals in which work ... Committee. Over those 30 years, several thousand scientific papers have been presented to CCAMLR meetings ... the past 30 years is the increase in the number of scientific journals in which work of relevance to CCAMLR ... with the 30th meeting of the CCAMLR Scientific Committee. Over those 30 years, several thousand scientific ... -making by CCAMLR. One of the most striking changes over the past 30 years is the increase in the number ... to CCAMLR’ yet those papers do not get submitted for consideration by CCAMLR. I would urge all authors who ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 167 : Author(s): Editors
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Natural mortality rate in the mackerel icefish (Champsocephalus gunnari) around South Georgia
for 2 20 15 10 5 - E a, f F 0 8 6 -5 -10 -1 5 -20 3 4 5 6 7 8 9 Age (years ... of 0.55) and 0.35 (from SC-CAMLR, 1988) should be used. The following year the information in Frolkina ... recruited age classes, and no is the number sampled from the first fully recruited year class: To test ... (1991) and Olsen (1955) for each year is set out in Figure 1. Analysis of the data published ... Paper Title: Natural mortality rate in the mackerel icefish (Champsocephalus gunnari) around ... careful consideration of the data and available methods, several errors are noted in earlier estimates ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 245–257 : Author(s): Everson, I
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Archival and satellite-linked data recorders
provides an overview of currently-available data recorders for use in research on marine animals ... . These recorders are deployed on freely swimming animals and gather data on aspects of an animal’'s diving ... animals. These recorders are deployed on freely swimming animals and gather data on aspects of an animal ... data recorders for use in research on marine animals. These recorders are deployed on freely swimming ... animals and gather data on aspects of an animal's diving behaviour. The records can be recovered in one ... la conduite de plongee d'un animal. Les enregistrements peuvent etre recuperes de deux fa~ons ... registradores de datos disponibles actualmente para uso en la investigacion sobre animales marinos. Estos ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 475-493 : Author(s): Hill, R.D.
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Precautionary spatial protection to facilitate the scientific study of habitats and communities under ice shelves in the context of recent, rapid, regional climate change
highlights how: CCAMLR Science, Vol. 20 (2013): 139–151 139 PRECAUTIONARY SPATIAL PROTECTION ... forward and it may be years or decades between major calv- ing events. Other changes in the mass balance ... of the northern edge of the George VI ice shelf (67.840°W 71.692°S) which lost ~993 km2 over a number of years ... and volume of deep water in Pine Island Bay has increased in recent years. Faster basal melting under ... communities under ice shelves in the context of recent, rapid, regional climate change Abstract / Description ... : Recent rapid climate change is now well documented in the Antarctic, particularly in the Antarctic ... % of the Peninsula’s glaciers have retreated in recent decades. Further ice-shelf collapse will lead to ... the loss of existing marine habitats and to the creation of new habitats, with consequent changes in ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 139–151 : Author(s): Trathan, P.N., S.M. Grant, V. Siegel and K.-H. Kock