Resultados de la búsqueda
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Further development of coarse- and medium-scale spatially explicit population dynamics operating models for Antarctic toothfish in the Ross Sea region
program allows implementation of an aggregate movement model for use with large numbers of areas as a ... Abstract: We present developments towards spatially explicit age-structured population dynamics ... operating models for Antarctic toothfish in the Ross Sea. The operating models consider both a coarse-scale ... discrete time-step state-space model that represents a cohort-based population age structure in a spatially ...
Meeting Document : WG-FSA-12/44 : Autor(es): S. Mormede, A. Dunn, S. Parker and S. Hanchet (New Zealand)
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A life table for female Antarctic fur seals breeding at Cape Shirreff, Livingston Island
-2005. These data are used to construct an age-dependent life table for female fur seals breeding at ... Abstract: Mark-resight data were analysed for five cohorts (1997-2001) to estimate age-specific ... juvenile survival, age at first reproduction, and resight probabilities. Longitudinal histories of presence ... and pregnancy of adult females (aged by cementum annuli) were used to estimate age-specific survival ...
Meeting Document : WG-EMM-06/39 : Autor(es): M.E. Goebel, B.I. McDonald, J.D. Lipsky (USA), V.I. Vallejos, R.A. Vargas, O. Blank (Chile), D.P. Costa (USA) and N.J. Gales (Australia)
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Spatial distribution of Champsocephalus gunnari in Subarea 48.3. Some implications for parameter estimation
general trend for increasing densities since 1994. The significant variance component obtained for ... the variance. The spatial pattern of density across years might be applied to construct a model of ... implications for parameter estimation Approval: Approved ...
Meeting Document : WG-FSA-96/30 : Autor(es): Calcagno, J., Gonzalez, B., Marschoff, E.
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A methodology for estimating total finfish by-catch of the Area 48 krill fishery
family for both low sea-ice and normal sea-ice years. Biological parameters for Champsocephalus gunnari ... . Estimates of bycatch rates per tonne of catch were made at a family level for Channichthyidae, Nototheniidae ... and Notothenia rossii were used to convert total bycatch numbers to biomass at age of 50% maturity ... removed from stocks due to finfish bycatch at a family level, for Channichthyidae and Nototheniidae ...
Meeting Document : WG-EMM-12/29 : Autor(es): T. Peatman, S.M. Martin (United Kingdom), O.R. Godø (Norway) and R.C. Wakeford (United Kingdom)
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Recruitment of Antarctic krill (Euphausia superba) and possible causes for its variability
abundance of the 1 + age class, varies substantially between years, whereas it is quite similar between ... different surveys within the same field season. The overall mean recruitment index for all years was Rmean ... = 0.210. Good recruitment was observed for the 1980/81, 1985/86, 1987/88, and 1990/91 year classes ... ; exceedingly poor recruitment occurred for the 1976/77, 1982/83, 1983/84, 1988/89, 1991/92 and 1992/93 year ...
Meeting Document : WG-EMM-95/15 : Autor(es): Siegel, V., Loeb, V.
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Products for human consumption from krill (Euphausia superba)
months at-30°C and one month at-20°C. Dried krill of good quality could be prepared by blanching krill in ... Abstract: Studies were conducted to formulate different products using krill meat stored for 2 ... boiling 5% Na Cl solution for 5 minutes and then sundrying. Incorporation of krill mince even at a level ... fish burger, it gave a bitter after taste at 10% level and bitter taste at 20% level or above. The ...
Meeting Document : WG-EMM-98/41 : Autor(es): J. Joseph, V. Muraleedharan, R. Thankamma and C.N. Ravishankar (India)
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On the very high likelihood of bycatch of ice krill (Euphausia crystallorophias) in the present-day fishery for Antarctic krill (E. superba)
(as of April 2015) requires “fisheries to regularly review alternative mitigation measures to minimise ... -fishery), but it is not apparent if the probability of bycatch of Ice krill was considered for this re ... ://fisheries.msc. org/en/fisheries/aker-biomarine-antarctic-krill/@@view; due before June 2020) we suggest that due ... -day fishery for Antarctic krill (E. superba) Microsoft Word File: emm-18-05.docx Approval: Approved ...
Meeting Document : WG-EMM-18/05 : Autor(es): A.S. Brierley and R. Proud
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Seabird avoidance measures for small Alaskan longline vessels
Abstract: Given the lack of information on appropriate seabird avoidance measures for small ... hooks were accessible to surface foraging Alaska seabirds, for 8 fishing vessels > 7.9 m to 16.8 m ... access window produced by vessels deploying fixed gear at faster speeds averaged 90 m. Gear sink rates ... among vessels and gear types were similar (0.09 to 0.13 for snap on gear vessels and 0.07 m/s for fixed ...
Meeting Document : WG-FSA-05/36 : Autor(es): E.F. Melvin and M. Wainstein (USA)
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A preliminary population status model for the Patagonian toothfish, Dissostichus eleginoides, on the Kerguelen Plateau (Divisions 58.5.1 and 58.5.2) using CASAL
abundance of age classes across the Plateau are suggested as part of a research program to addressing key ... ) Title: A preliminary population status model for the Patagonian toothfish, Dissostichus eleginoides, on ...
Meeting Document : WG-SAM-11/20 : Autor(es): S.G. Candy (Australia), A. Relot, G. Duhamel (France), D.C. Welsford, A.J. Constable, T.D. Lamb (Australia), P. Pruvost and N. Gasco (France)
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Collected data and stock assessment results for Notothenia squamifrons from Ob and Lena Banks, Division 58.4.4
Abstract: Catch and length/age composition data for Notothenia squamifrons from Ob and Lena Banks ... , Division 58.4.4, are presented for the period from 1978 to 1990 split years. These data were used in VPA ... analyses made for each bank separately. The CCAMLR VPA program, version 4.1 was used. The resulted biomass ... estimates for 1990 are 10.2 x 103 tonnes for Ob Bank and 20.7 x 103 tonnes for Lena Bank. These estimates ...
Meeting Document : WG-FSA-92/05 : Autor(es): A.K. Zaitsev and S.M. Pronenko (Ukraine)