Resultados de la búsqueda
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WG-SAM-10
commission an independent review of the Secretariat’s data management systems Secretariat WG-SAM-10/09 Update ... mortality using catch-at-age and aged mark-recapture data: a simulation study comparing estimation for a ... Comparison of age- and length-based harvest control rules for the South Georgia icefish (Champsocephalus ... Meeting documents Doc Number Title WG-SAM-10/01 Draft Agenda and Draft Annotated Agenda for the 2010 ...
Meeting
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Fishery Report: Dissostichus eleginoides Kerguelen Islands (Division 58.5.1)
by adjusting the C2 catches by a factor of 1 for the years before 2001, 1.031 for the years 2003 ... –2007, and a linear interpolation between 1 and 1.031 for the years 2001 and 2002. Estimated CPUE ... published biological parameters to develop assessments for these species. 5. By-catch 5.1 By-catch ... development. (ii) Extension of the fishing closure for the 2009/10 season – There will be an additional ...
Document : Site Section: Publications
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Aggregation patterns of pelagic predators and their principal prey, Antarctic krill, near South Georgia
differences in foraging strategies. Published in Journal of Animal Ecology (1993) 62, 000-000 Author(s): R.R ... is an explicit consideration of the separation in space between swarms of krill and aggregations of ...
Meeting Document : WG-CEMP-93/13 : Autor(es): R.R. Veit (USA), E.D. Silverman (USA) and I. Everson (United Kingdom)
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Detection and quantitative estimation of krill concentrations by hydroacoustic instruments
2.107 L 1----. .1- _______ . __ .... __ . ___ _ 30 35 'ID so Figure 1 60 70 80 90 tDO ·120 ISO ... transmitter frequency. Thus, echo sounders operating at comparatively low frequencies (20-30 kHz) are much ... towed antennae is their ease of calibration in the sea - an especially important feature for echo ... desirable that the range of detection for an individual krill should be extended to the limit possible ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 123-139 : Autor(es): Yudanov, K.I.
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A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997–98 to 2014–15
three years. The strong mode of smaller (90–120 cm TL) toothfish present in the Slope fishery from 2010 ... distributed across the three SSRUs (73% in 88.1H, 22% in 88.1K and 5% in 88.1I). As in recent years, the ... fishery were stable in the North up until 2014, then showed a decrease in mode, particularly for males (to ... similar to that in the early period of the fishery – the reason for this is unclear. There has been a ...
Meeting Document : WG-FSA-15/36 : Autor(es): K. Large, S.M. Hanchet and S. Mormede (New Zealand)
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Investigation of the sensitivity of the Ross Sea toothfish assessment to withholding subsets of the available data
model outputs of withholding from a stock assessment between one and eight years of age frequency and/or ... very sensitive to changes in years of tag release and recapture data available to the model. For ... the effect of not updating an assessment every year, and also the evolution of stock assessments with ... CCAMLR areas using integrated statistical catch-at-age stock assessment models. These models were ...
Meeting Document : WG-SAM-11/17 : Autor(es): S. Mormede (New Zealand)
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A quantified Bayesian Maximum Entropy estimate of Antarctic krill abundance across the Scotia Sea and in small-scale management units from the CCAMLR-2000 Survey
area. Density values for the unsurveyed off-transect portions of the survey area were inferred, and ... thus values for total biomass across the survey area, and within individual small-scale management ... estimated due to the sparseness of data in these regions. The MaxEnt formalism allows an objective choice of ... the parameters of the estimation method, and hence an objective choice of the most probable ... et al. 100 and Sibisi, 1990; Gull and Skilling, 1991; Skilling, 1991; see Sivia, 1996 for an ... which expresses a preference for smoothness (since an equal distribution of krill across all cells has ... particular application of the MaxEnt method. In astrophysics, for example, the data from an instru- ment may ... simply an approximation to a Gaussian point spread func- tion. It is necessary to choose a width for ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 97–116 : Autor(es): Heywood, B.G., A.S. Brierley and S.F. Gull
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Modifications to the Generalised Yield Model in 2004, version GYM501E.EXE
recruitment age and greater. This calculation needed to be made general to allow for many years younger than ... fish at the nominated ‘recruitment age’ (age 4 for toothfish) in each year. The first year in the time ... . This was coded specifically for the case of surveys observing fish of ages one year younger than the ... of reviewing the methods for estimating the time series of recruitments of D. elegionoides for WG-FSA ...
Meeting Document : WG-FSA-04/91 : Autor(es): A.J. Constable (Australia)
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e-cc-xxxi-a6.pdf
... an analysis for the past two years of landings by toothfish vessels and port inspection frequency ... addition, the vessel achieved an overall tag overlap of about 70% for the year. South Africa undertook to ... have implications for search and rescue in the event of an accident at sea. SCIC appealed to Members ... observation in krill fisheries by two years, increase the scheme’s coverage to 80% of vessels and change the
application/pdf attached to:SCIC-12Meeting Report : SCIC-12
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WG-FSA-92
design for Subarea 48.1 G. Watters (USA) WG-FSA-92/08 Length-age composition of the Patagonian toothfish ... Rev. 1 An iterative model to construct an age-length key to assess the age composition of a new ... documents Doc Number Title WG-FSA-92/01 Provisional Agenda for the 1992 Meeting of the Working Group on Fish ... AtlantNIRO I.A. Trunov (Russia) WG-FSA-92/05 Collected data and stock assessment results for Notothenia ...
Meeting