Résultats de la recherche
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Revised research plan for the 2013/14 exploratory longline fishery of Dissostichus spp. in Division 58.4.1
trigger level of 1 500 kg for the catch of Macrourus spp. in two 10-day periods provided in the paragraph ... least 3 years with the same sample size as decided at the last CCAMLR meeting for the current research ... while reducing the inconveniences for operation. Similarly, strict application of the move-on rule ... observer data. The stock size estimates for research blocks were revised following advice in the last WG ...
Meeting Document : WG-FSA-13/38 : Auteur(s): Delegation of Japan
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Revised research plan for the 2013/14 exploratory longline fishery of Dissostichus spp. in Division 58.4.2
level of 1 500 kg for the catch of Macrourus spp. in two 10-day periods provided in the paragraph 6 of ... least 3 years with the same sample size as decided at the last CCAMLR meeting for the current research ... reducing the inconveniences for operation. Similarly, strict application of the move-on rule could ... observer data. The stock size estimates for the research block (5842E) was revised following advice in the ...
Meeting Document : WG-FSA-13/39 : Auteur(s): Delegation of Japan
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Revised research plan for the 2013/14 exploratory longline fishery of Dissostichus spp. in Subarea 48.6
least 3 years with the same sample size as decided at the last CCAMLR meeting for the current research ... of the austral summer sea-ice during past 10 years in the current research blocks and an additional ... and observer data. The stock size estimates for research blocks were revised following advice in the ... such a way that the numbers of tag recoveries in the 2016 season shows an approximately 0.3 of ...
Meeting Document : WG-FSA-13/37 : Auteur(s): Delegation of Japan
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A development of catch per unit effort (CPUE) trends that may be useful in stock assessment for Dissostichus mawsoni in Subarea 48.6
Abstract: Catch per unit effort (CPUE) is developed for subarea 48.6 from data covering 2004/2005 ... to 2017/2018 fishing seasons. General Linear Models and General Linear Mixed Models were applied to ... models for Dissostichus mawsoni (D. mawsoni) in the area. The entire fishing area in 48.6 which is ... covered by various research blocks is treated as a single area and the developed trends are for the entire ...
Meeting Document : WG-SAM-2019/37 : Auteur(s): S. Somhlaba, K. Leach, M. Bergh, T. Okuda, T, IIchi, R. Sarralde and T. Namba
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Descriptive analysis of acoustic data collected during the 2003 exploratory fishery for toothfish in the Ross Sea
conducting acoustic surveys for toothfish and rattails in the Ross Sea. Acoustic data were collected during ... recordings, 68 were considered suitable for acoustic analysis. Poor data quality was associated with strong ... deadzone would be over 50 m high for a sea-bed with a slope of 20º. The problem of the acoustic deadzone ... avoided with the use of a towed acoustic system. Two types of pelagic layers were present in most acoustic ...
Meeting Document : WG-FSA-03/28 : Auteur(s): R.L. O’Driscoll and G.J. Macaulay (New Zealand)
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Timescale of ovarian maturation in Notothenia coriiceps (Richardson); evidence for a prolonged adolescent phase
for about one year. The results from a two year study at Signy Island indicate that this adolescent ... phase lasts for about four years. There is also some evidence to indicate that not all sexually mature ... fish spawn each season. Two reproductive strategies are considered, one where adverse conditions are ... accompanied by a failure to spawn and an alternative where fecundity is controlled by the number of small ...
Meeting Document : WG-FSA-93/26 : Auteur(s): Inigo Everson (United Kingdom)
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Are krill recruitment indices from meso-scale survey representative for larger areas?
) and two-year old (R2) krill differ substantially between years. However, results were in conformity ... recruitment indices derived from these two mesoscale surveys and analyse whether results from mesoscale ... surveys are representative for a wider region Generally the proportional recruitment indices for one (R1 ... for age-one-old krill between scientific surveys from the northern Bellingshausen Sea, the Elephant ...
Meeting Document : WG-EMM-02/20 : Auteur(s): V. Siegel (Germany), R.M. Ross and L.B. Quetin (USA)
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LENGTH-BASED ASSESSMENT FOR THE MACKEREL ICEFISH (CHAMPSOCEPHALUS GUNNARI) IN SUB-AREA 48.3
numbers forward under the given harvest control rule to set a two-year TAC. One issue is the accurate ... then used to estimate the two-year TAC, given the relevant harvest control rule. Author(s): R.M ... Abstract: The current assessment method for the mackerel icefish (Champsocephalus gunnari) in sub ... data, yield an estimate of the population numbers-at-length. A length-based population projection is ...
Meeting Document : WG-SAM-09/15 : Auteur(s): R.M. Hillary, D.J. Agnew and R. Mitchell (United Kingdom)
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Review of some assumptions for modelling Patagonian toothfish dynamics at CCAMLR Subarea 48.3
Abstract: During the year 2005 meeting of the WG-FSA two different methods for assessing ... cases were similar, there were considerable differences in assumptions and implementations of the two ... . Author(s): A. Aubone, P.A. Martínez and O.C. Wöhler (Argentina) Title: Review of some assumptions for ...
Meeting Document : WG-FSA-SAM-06/13 : Auteur(s): A. Aubone, P.A. Martínez and O.C. Wöhler (Argentina)
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A summary of the commercial fishery for mackerel icefish Champsocephalus gunnari in Subarea 48.3 during the 1997/98 season
, fished commercially for mackerel icefish at South Georgia (Subarea 48.3) using a midwater trawl for ten ... hauls. 67% of this catch was taken in just two hauls, confirming the patchy distribution of this species ... . Most of the catch was made up of fish between 22 and 30 cm long. Fish of this size range have ... previously been shown to be ages two and three. The catch of species other than C. gunnari amounted to only ...
Meeting Document : WG-FSA-98/53 : Auteur(s): G. Parkes, A. King and C. Jones (United Kingdom)