Search results
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Detection of growth zones in the eyestalk of the Antarctic krill Euphausia superba (Dana, 1852) (Euphausiacea)
Abstract: No reliable measures of age currently exist in the Antarctic krill, Euphausia superba ... of the ageing procedure from krill with a known age is needed before the number of growth zones can ... be definitely established as an indicator of age. The detection of growth zones in the Antarctic krill ... No reliable measures of age currently exist in the Antarctic krill, Euphausia superba (Dana, 1852 ...
Meeting Document : WG-EMM-16/P02 : Author(s): B.A. Krafft, M. Kvalsund, G. Søvik, E. Farestveit and A.-L. Agnalt
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Scientific justification for a marine protected area designation around the Balleny Islands to protect ecosystem structure and function in the Ross Sea region, Antarctica: progress report
be aligned with both the CCAMLR ecosystem-wide conservation objectives and the values found in Article ... is on the CCAMLR values. A review of existing information reveals that the Balleny Islands are uniquely situated ... be aligned with both the CCAMLR ecosystem-wide conservation objectives and the values found in Article ... is on the CCAMLR values. A review of existing information reveals that the Balleny Islands are uniquely situated ...
Meeting Document : SC-CAMLR-XXIV/BG/25 : Author(s): Delegation of New Zealand
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Assessment models for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea for the years 1997–98 to 2010–13
Abstract: We provide an update of the Bayesian sex and age structured population stock assessment ... 88.2A–B), using revised catch, catch-at-age, and tag-recapture data for the 2012–2013 seasons. Several ... We provide an update of the Bayesian sex and age structured population stock assessment model ... ;B), using revised catch, catch-at-age, and tag-recapture data for the 2012–2013 seasons. Several ...
Meeting Document : WG-FSA-13/51 : Author(s): S. Mormede, A. Dunn and S.M. Hanchet (New Zealand)
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Distribution and abundance of Macrourus carinatus on BANZARE Bank in the southern Indian Ocean
. 1996. Validation of age readings from otoliths of juvenile roundnose grenadier, Coryphaenoides ... . Kelly, C.J., P.L. Connolly and J.J. Bracken. 1997. Age estimation, growth, maturity and distribution ... of the family Macrouridae (rat tails and grenadiers) have become common by-catch species in recent years due ... to CCAMLR's decision rules. This paper provides a brief review of available information on Macrourus ... Indian Ocean Abstract / Description: This paper provides an assessment of the distribution and abundance ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 171–178 : Author(s): van Wijk, E.M., A.J. Constable, R. Williams and T. Lamb
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Possible effects of different levels of krill fishing on predators – some initial modelling attempts
t o b e the biomass of age classes 1 and above (i.e., the '1 + biomass ' ) a t t he 'start' of t h e year (i.e ... ' a n 8 ~ o o r j years, q 0.69 0.67 0.64 0.64 Age-at-First-Reproduction T (yr) 4 4 5 10 The va lues ... maturity plus a gestation period of essentially one year), while for birds it is the age at first laying ... year if an upper bound of 1.5 yr-' on the effective annual fishing mortality for fully selected age ... modelling attempts Abstract / Description: An initial attempt is made to develop the modelling framework ... suggested by the Joint Meeting of CCAMLR's Working Group on Krill (WG-Krill) and Working Group for the ... fluctuations together with preliminary information on adult survival and breeding success patterns for certain ... facilitated discussion on the interpretation of the preliminary estimates of adult survival rate provided for ...
Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 79–97 : Author(s): Butterworth, D.S. and R.B. Thomson
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Biomass, abundance and distribution of fish in the Kerguelen Islands EEZ (CCAMLR Statistical Division 58.5.1)
composition. Scales and otolith samples were taken for ageing. A tagging program of D. eleginoides was also ... and the top of the Skiff Bank, correspond to specific age classes (cohorts) previously recognised ... in the shallow and more inshore waters (age 0+, 6.14 million specimens from the abundance estimates, 28.9 ... % of fish) of sub-adult fish (age 2+), focused geographically more off- shore; (iii) a last group of post ... stratified stations. Estimates of biomass and abundance were produced for eight commercial species. The total ... biomass was 245 000 tonnes and Patagonian toothfish (Dissostichus eleginoides) accounted for half of the ... distribution of species, commercial or not, that are important in the ecosystem and are of major interest for ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 1–32 : Author(s): Duhamel, G. and M. Hautecoeur
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Phytoplankton distribution in the mixed layer: implication to krill abundance
N e 0 1 2 3 4 0 1 2 3 4 0 0 10 10 20 20 30 30 40 40 /""'. E '--" 50 50 L +-' 0... ID 60 60 -0 70 70 80 80 ... buoyancy frequency profile. 343 o 10 20 30 40 .5: 50 0+- D.. (J) ""0 Figure 2: 344 ... 60 70 80 90 100 10-10 10-9 10-8 10-7 10-6 10-5 10-4 10-3 G (W kg- 1) Dissipation ... ,...-.-. 20 E '--" ..c 25 -+-' 0.. ID ""0 30 35 40 45 50 Figure 8: Same as Figure ... Antarctic Ocean, we estimate the depth of the mixed layer and its turbulence intensity from an Ekman layer ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 331–356 : Author(s): Yamazaki, H. and T.R. Osborn
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Fishery Report: Exploratory fishery for Dissostichus spp. in Division 58.4.2
; E – 260 tonnes. Review Season 1 December to 30 November Same period By-catch Regulated by CM 33-03 ... species were defined in Conservation Measure 33-03. The fishing season was from 1 December 2007 to 30 ... 0 117 117 98 215 2003/04 - 1 500 0 20 20 197 217 2004/05 8 4 780 1 125 126 86 212 2005/06 7 3 780 ... 1(b): Catch of Dissostichus spp. in Division 58.4.2 reported by SSRU (source: fine-scale data pro-rated ...
Document : Site Section: Publications
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Criteria for aging the otoliths of Dissostichus eleginoides from South Georgia (Subarea 48.3) and an analysis of aging precision
that captured fish may be mostly young, between 3-9 years old. The low precision for aging D. eleginoides ... Abstract: A prerequisite for validation of an aging technique is a clear set of consistent aging ... criteria to test. Two sets of criteria ate presented for aging the otoliths of Dissostichus eleginoides ... criteria used to age high latitude fish from the north-west Pacific Ocean. Growth structures were found ...
Meeting Document : WG-FSA-98/52 : Author(s): J. Ashford (United Kingdom) and S. Wischniowski (Canada)
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CASAL model evaluation incorporating the calculation of harvest rate for D. eleginoides at Division 58.4.4b
an exploration of the impact of Age Length Keys (ALK), CPUE standardization, and different scenarios of IUU ... (para 6.76 in the WG-SAM2019 report). A single-sex age structured CASAL model was built to assess ... the M4 model described by Okuda and Massiot-Granier (2019). It includes updated catch at age data based ... conducted an exploration of the impact of Age Length Keys (ALK), CPUE standardization, and different ...
Meeting Document : WG-FSA-2019/62 : Author(s): T. Okuda and F. Massiot-Granier