Search results
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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 ...
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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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 ...
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
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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 ...
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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Status of krill target strength
on aggregations of live euphausiids and should not be affected by a frequent cause of bias in single-animal ... there is an empirical basis. The theoretical estimates show a non-monotonic dependence of target strength on both animal ... size and transmit frequency, notwithstanding admitted shortcomings. Some recent single-animal ... of bias in single-animal measurements, namely thresholding. Theoretical estimates for the target strength ... at 30 and 20 kHz. Measurements at 30 kHz were performed near Bouvet Island in December 1979 on krill ... of this ! 108 article, a reasonable fixed value of radius of curvature for the animals is used. In order ... of target strength in the article involve aggregations of animals, it is useful to compare the results ... to thresholding effects discussed earlier in this article and differences in animal type), the structure ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 101–126 : Author(s): Foote, K.G., D. Chu and T.K. Stanton
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Target strengths of Antarctic krill (Euphausia superba)
to a significant degree, then it will require raising the computed means shown in Table 2. The mentioned ... kHz TS (dB} at 120 kHz Event Mean no. - no. 1 7 1 9 20 26 28 30 36 37 43 47 50 52 54 ... SC-CAMLR-VII/BG/30 TARGET STRENGTHS OF ANTARCTIC KRILL ... all measurements on the animal of interest, E. superba. The work of K0geler et al. (1987) was noted ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 265–279 : Author(s): Everson, I., D.G. Bone, J.L. Watkins and K.G. Foote
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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 three ... in the chinstrap population in the last 20-30 years, about three-fourths of the difference between our counts ... 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, environ les ... 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 : Author(s): Shuford, W.D. and L.B. Spear
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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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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
Paper Title: Integrating Count Effort by Seasonally Correcting Animal Population Estimates ... animal count data to a common reference point of breeding chronology for species with a complex temporal ... function of sampling availability. ICESCAPE (Integrating Count Effort by Seasonally Correcting Animal ... Integrating Count Effort by Seasonally Correcting Animal Population Estimates (ICESCAPE): a method ... IntegratIng Count effort by SeaSonally CorreCtIng anImal PoPulatIon eStImateS (ICeSCaPe): a method ... Canada Abstract This work describes a parametric bootstrap model for standardising animal count data ... availability. ICESCAPE (Integrating Count Effort by Seasonally Correcting Animal Population Estimates ... animales con respecto a un punto de referencia común de la cronología de reproducción para especies con ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 213–227 : Author(s): McKinlay, J., C. Southwell and R. Trebilco