Search results
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Development of an Antarctic toothfish (Dissostichus mawsoni) stock model for CCAMLR Subarea 88.1 for the years 1997/98 to 2003/04
of an Antarctic toothfish (Dissostichus mawsoni) stock model for CCAMLR Subarea 88.1 for the years 1997/98 to 2003 ... for the years 1997/98 to 2003/04 ...
Meeting Document : WG-FSA-04/36 : Author(s): A. Dunn, D.J. Gilbert, S.M. Hanchet and B. Bull (New Zealand)
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A preliminary model-based approach for estimating natural mortality of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea Region
y-1 and constant across age and sex. In 2018, the independent review of the Ross Sea region D. mawsoni stock ... age and sex. In 2018, the independent review of the Ross Sea region D. mawsoni stock assessment ... estimate of M, including values of natural mortality that vary by age and sex, should be considered ... of natural mortality that vary by age and sex, should be considered in future stock assessment sensitivity ...
Meeting Document : WG-SAM-2019/04 : Author(s): B. Moore, S. Mormede, S. Parker and A. Dunn
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Distribution, morphology, growth, reproduction, diet and trophic position of two species of grenadier (Macrourus whitsoni and M. caml) in the Ross Sea region of the Southern Ocean (CCAMLR Subareas 88.1 and 88.2)
, full size is attained at about 15–20 years of age and they can live in excess of 60 years. However ... ; in M. caml, full size is attained at about 15–20 years of age and they can live in excess of 60 years ... ; M. whitsoni approaches full size at about 10–15 years of age and can live to at least 27 years; in M. caml ... ; M. whitsoni approaches full size at about 10–15 years of age and can live to at least 27 years ...
Meeting Document : WG-FSA-12/54 Rev. 1 : Author(s): M.H. Pinkerton, P. McMillan, J. Forman, P. Marriott, P. Horn, S. Bury and J. Brown (New Zealand)
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Direct ageing of Antarctic krill (Euphausia superba) – potential utility of eyestalk sections for age determination
are performed. First, longitudinal sections of the eyestalk from known age krill (2+ and 3+ years old) were ... . Marks consistent with annuli observed in laboratory raised krill were observed. Length at age ... , longitudinal sections of the eyestalk from known age krill (2+ and 3+ years old) were examined and were ... consistent with annuli observed in laboratory raised krill were observed. Length at age was plotted against ...
Meeting Document : WG-EMM-15/45 : Author(s): C. Reiss (USA), R. Kilada (Canada) and S. Kawaguchi (Australia)
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Preliminary assessment of mackerel icefish (Champsocephalus gunnari) in the vicinity of Heard Island and McDonald Islands (Division 58.5.2), based on a survey in March–April 2010, including a revised growth model
on this cohort. A new growth model is also estimated which shows an improved fit to observed sizes at age ... on this cohort. A new growth model is also estimated which shows an improved fit to observed sizes at age ... of yield for the area of Division 58.5.2 to the west of 79°20’ E using standard CCAMLR methods. The strong ... year class detected in the last three years’ surveys is now fully recruited as the 4+ cohort ...
Meeting Document : WG-FSA-10/12 : Author(s): D.C. Welsford (Australia)
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Tendencias de la biomasa de Dissostichus eleginoides (Smitt, 1898) en la Subarea 48.3 (1992–1997)
in the catch at age data. The model was tunned by the standarized CPUE. For this last process GLlM was used ... to 1997, was estimated using the Sequential Population Analysis (SPA) model based in the catch at age data ... the split years 1992 to 1997, was estimated using the Sequential Population Analysis (SPA) model based ... to the 20% of the initial (1992) spawning biomass. An aproximation of the future TAC was made using ...
Meeting Document : WG-FSA-97/43 : Author(s): Moreno, C.A., Rubilar, P.S., Zuleta, A., Young, Z.
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Report on fish by-catch during exploratory fishing activities in Division 58.4.3a (Elan Bank) between 2008 and 2018
(Dissostichus eleginoides) last submitted in 2018 by Japan and France in Division 58.4.3a (WG-FSA-18/61). We ... analyzed bycatch composition in number and biomass during the period 2008-2018 to investigate the inter ... , autolines were less selective than trotline. While trotlines had a bycatch-to-catch ratio of 10 to 20 ... %, autolines ratio was up to 70% in some years. Hence, bycatch number and biomass increased strongly the years ...
Meeting Document : WG-FSA-2019/56 : Author(s): C. Péron, C. Chazeau, N. Gasco and F. Massiot-Granier
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Aspects of the ecology of the bigeye grenadier at South Georgia
that M. holotrachys is a long lived and moderately slow growing species, reaching ages of over 30 years and attaining ... that M. holotrachys is a long lived and moderately slow growing species, reaching ages of over 30 years and attaining ... in the Patagonian toothfish longline fishery conducted around South Georgia were investigated. Age estimates suggest ... in the Patagonian toothfish longline fishery conducted around South Georgia were investigated. Age estimates suggest ...
Meeting Document : WG-FSA-03/16 : Author(s): S.A. Morley, T. Mulvey, J. Dickson and M. Belchier (United Kingdom)
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Use of a population model to assess the impact of longline fishing on wandering albatross populations
Abstract: An age-structured model of a wandering albatross Diomedea exulans population ... An age-structured model of a wandering albatross Diomedea exulans population is developed ... at a rate of 2.29% per year, which concurs with global population trends. Sensitivity analyses of model ... , there is a time lag of 5-10 years before further decreases in population numbers are reflected in the breeding ...
Meeting Document : WG-IMALF-94/08 : Author(s): Coleen L. Moloney, John Cooper, Peter G. Ryan and W. Roy Siegfried (South Africa)
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An overview and some preliminary results of a biological/oceanographic survey off the coast of East Antarctica (80-150°e) carried out in January to March 1996
preliminary results of a biological/oceanographic survey off the coast of East Antarctica (80-150°e) carried ... Antarctica (80-150°e) carried out in January to March 1996 ...
Meeting Document : WG-EMM-96/29 : Author(s): de la Mare, W., Wright, S., Bindoff, N., Thiele, D., Pauly, T., Gillespie, D., Woehler, E., Nicol, S.