Résultats de la recherche
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Precision of growth band determination from eyestalk sections of Antarctic krill (Euphausia superba) preserved in formalin
Abstract: Age information for commercial fish species is crucial to fishery management. Age ... Antarctic krill growth. This study presents important information for age determination, particularly for ... information for Antarctic krill (Euphausia superba) will be important for stock assessment modeling and future ... feedback management of krill fisheries. Samples stored in 70% ethanol provide an opportunity to detect the ...
Meeting Document : WG-EMM-18/P16 : Auteur(s): G.P. Zhu, Y. Yang, Q. Song and H.T. Zhang
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Changes in biomass of eight species of finfish around the South Orkney Islands (Subarea 48.2) from three bottom trawl surveys
the South Orkney Islands (Subarea 48.2) suffered substantial declines from split-year 1977/78 to 1989 ... /90. The biomass of several species of finfish has been monitored through scientific bottom trawl ... were computed for the eight species of finfish which were most abundant in catches. Biomass levels and ... of recovery for N. rossii. However, overall levels of biomass indicate very little potential for ... conducted during daylight hours. The target time for a haul was 30 minutes, with any haul less than 20 ... Orkney Islands (Subarea 48.2) suffered substantial declines from split-year 1977/78 to 1989/90. The ... increase in point estimate biomass levels for this species suggests an increase in population levels from ... there was an apparent decrease in biomass for all other species in 1999, particularly C. gunnari. The ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 53–74 : Auteur(s): Jones, C.D., K.-H. Kock and E. Balguerías
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e-sc-xxvii-a4.pdf
... include a 20-year period with fishing followed by a 20-year recovery period with no fishing; (iv) model ... Option 1 has already been excluded as an option by this Working Group. For Options 2 (spatial ... that the risk metrics presented in WG-EMM-08/30 are based on the existing decision rules for krill ... fishery. For the purposes of the latter risk metric, WG-EMM-08/30 presented krill density thresholds of
application/pdf attached to:WG-EMM-08Meeting Report : WG-EMM-08
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e-cc-xv-a4.pdf
... originally adopted for a three-year trial period should be continued in 1997 and subsequent years. 13. The ... expressed its appreciation to the Government of Australia for the provision, free-of-charge, of such an ... item. 15. Following a suggestion by the Scientific Committee, SCAF added into the budget for 1997 an ... for 1997 as presented in Appendix II to this report. 20. The Committee recommended that the
application/pdf attached to:SCAF-96Meeting Report : SCAF-96
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e-sc-xxix-a7.pdf
... establishing an annual review of a subset of data, target species data for example, collected by CCAMLR ... ...................................... 250 Development for an accreditation process and timeline ................................. 250 ... recalled TASO-09/9 which provided a pro-forma framework for the provision of observer program information ... demersal longline fisheries, is required prior to an observer being considered for deployment in Antarctic
application/pdf attached to:TASO-10Meeting Report : TASO-10
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e-sc-v-a9.pdf
... previous years Initial 5 year program review Define remote sensing archive needs for physical ... activity on the long-term plan dealing with protocols for management advice is an essential component of ... ecosystem monitoring program Begin to establish baselines for priority indicators Review results of ... CCAMLR data base by establishing formal requirements for reporting age and length data from
application/pdf attached to:WG-LTP-86Meeting Report : WG-LTP-86
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e-sc-xxxvi-a06.pdf
... .................................................. 224 Development of a five-year work plan for the CCAMLR Scientific Committee ..... 225 Advice to ... by the Scientific Committee in 2016 for the work of WG-EMM this year (as outlined in SC-CAMLR- XXXV ... March. 2.10 The Working Group reviewed notifications of intention to fish for krill in 2018 using ... fishery selectivity, for the development of FBM and as an integral part of acoustic monitoring from
application/pdf attached to:WG-EMM-17Meeting Report : WG-EMM-17
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e-sc-xxx-a08.pdf
... petrels. The observed catches for Division 58.5.1 were 39 (80%) white-chinned petrels, seven (14%) grey ... for D. eleginoides in Division 58.5.2 during the pre-season extension period of 15 to 30 April. The ... data for the marine debris collection in the Convention Area over the last 10 years showed no ... ................................................................. 410 Review of progress made to reduce seabird mortality in the French EEZs ..... 411 Seabirds in
application/pdf attached to:WG-IMAF-11Meeting Report : WG-IMAF-11
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Aspects of the ecology of the bigeye grenadier at South Georgia
, an average number for a macrourid of this size. A highly skewed sex ratio of 33:1 females: males was ... over 30 years and attaining lengths in excess of 80cm (Lt). Von Bertalanffy growth parameters were ... in the Patagonian toothfish longline fishery conducted around South Georgia were investigated. Age ... estimated for females and closely matched those of the congeneic species M. berglax from the Northern ...
Meeting Document : WG-FSA-03/16 : Auteur(s): S.A. Morley, T. Mulvey, J. Dickson and M. Belchier (United Kingdom)
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Evaluation of the results of trawl selectivity experiments by Poland, Spain and USSR in 1978/79, 1981/82 and 1986/87
in 1978/79, 1981/82 and 1986/87 Abstract / Description: Trawl selectivity for several species of ... rates and catch composition. Details of these data were analyzed and minimum mesh sizes for several ... species were calculated. It is recommended that introduction of these mesh sizes should be considered for ... mm, to protect first spawners, or 100 mm, to give an age at first capture of 4 years; (ii) Fishery ... 23.6 cm. Lso values of 30 cm for mesh size 124 mm (Table 9) and of 29.4 cm for mesh 110 mm (Table 11 ... considered: ( a) Subarea 48.3 (i) Fishery targeted at C. gunnari 80 mm, to protect immature fish, or 90 ... Georgia. Fisch - Forsch., 20 (2): 49-53. KOCK, K.-H. 1981. Fischereibiologishe Uutersuchungen an drei ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 163–196 : Auteur(s): Slosarczyk, W., E. Balguerias, K. Shust and S. Iglesias