Résultats de la recherche
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Bacteria and detritus: Trophic modelling of the Ross Sea
compartments between years. The vast majority of ice is assumed to melt each year so that the material in the ... 30%. The comparison suggests that the values used in the model for biomass and energetics of benthic ... column detritus for the model is shown in Figure 6c. This has an average value of 16.4 gC m-2. 0 20 ... A M J a 0 5 10 15 20 25 30 35 40 La bi le D O C (g C m -2 ) J A S ...
Document : Site Section: Publications
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WG-FSA-15
of Japan WG-FSA-15/20 Revised research plan for toothfish in Division 58.4.4b by Shinsei maru No. 3 ... resource potential and life cycle of Dissostichus species from the Subarea 88.2 A in 2015–2018 Delegation ... /43 Rev. 1 Report on the survey in Subarea 48.2 in 2015 (the first year of the planned 3-year-old ... for Patagonian toothfish in research block 58.4.3a_1 of Division 58.4.3a, Elan Bank for the years 2005 ...
Meeting
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e-sc-xxx-a08.pdf
... to SC-CAMLR. 410 2.4 Other issues raised in Table 1 of SC-CAMLR-XXVIII, Annex 7, are ... (WG-IMAF-11/5 Rev. 2), with two more observer reports still due. In the krill fishery, 20% of ... incidental mortalities were observed in finfish trawl fisheries (WG-IMAF-11/5 Rev. 2, paragraph 30 and Table ... and 58.4.3b, met the requirement to achieve a consistent minimum line sink rate as described in CM 24
application/pdf attached to:WG-IMAF-11Meeting Report : WG-IMAF-11
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Fishery Report 2013: Dissostichus eleginoides Heard Island (Division 58.5.2)
future SSB was below 20% of the pre-exploitation median spawning biomass in any one year, for each year ... , selectivity is high for 6-year-old fish and effectively declines to zero for fish older than 20 years. 18 ... by the year in which that season ended, e.g. 2013 represents the 2012/13 CCAMLR fishing season (from ... report the CCAMLR fishing season is represented by the year in which that season ended, e.g. 2013 ...
Document : Site Section: Publications
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Beyond MSY: a consideration of definitions of management objectives
different guidelines under more realistic population models, taking account of the objectives set out in ... Article II of the CCAMLR Convention. The criteria will depend on whether the main concern is with ... nominal effort each year, based on the values of F and fishing effort in the most recent years. Since ... negative, even in the absence of fishing when strong year-classes are being replaced by weak ones ... largest stock in the data series, the MNR for plaice being indeterminate but certainly less than 30 ... that improvements in fishing efficiency can mean that a control (e.g. that no more than 20 trawlers ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 299-322 : Auteur(s): Gulland, J.A.
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Aspects of the ecology of the bigeye grenadier at South Georgia
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 ... between 22 and 55% likely to be spawned each year. Absolute fecundity ranged from 22,000 to 260,000 eggs ... ) and occurred at around 9 years old. Estimates of natural mortality and Pauly’s growth performance ...
Meeting Document : WG-FSA-03/16 : Auteur(s): S.A. Morley, T. Mulvey, J. Dickson and M. Belchier (United Kingdom)
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A statistical method for estimating the level of IUU fishing: application to CCAMLR Subarea 48.3
there must have been at least one encounter with an FPV in a year; no encounters in a year are ... measures. Three years were analysed: 1998/99, 1999/2000 and 2000/01. Each year fully covered the period 1 ... highly skewed, with medians in the three years of 621, 2 852 and 550 birds respectively. 95% confidence ... , and confidence intervals for, fish and bird catches by IUU vessels. In order to estimate an IUU catch ... encounter with an FPV in a year; no encounters in a year are interpreted as zero IUU fi shing. For each IUU ... analysed: 1998/99, 1999/2000 and 2000/01. Each year fully covered the period 1 October to 30 September ... levels of IUU activity. Each year CCAMLR has made estimates of the level of IUU catch in Subarea 48.3 ... ) sightings of IUU incidents by year (Agnew, 2004). Year % of the year spent patrolling in Subarea 48.3 ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 119–141 : Auteur(s): Agnew, D.J. and G.P. Kirkwood
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e-sc-v-a4.pdf
... which good year-classes are present. 7. In either situation it is difficult to define ‘typical’ values ... difficulties in the VPA in determining the actual abundance of the younger year-classes in the most recent ... reasonably reliable estimate is available is that spawned in 1977 (7 year olds in the 1984/85 season). For ... this and earlier year-classes, there is no evidence of any significant fall in recruitment, but
application/pdf attached to:WG-FSA-86Meeting Report : WG-FSA-86
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Fishes incidentally caught by Japanese Antarctic krill commercial fishery to the north of the South Shetland Islands during the 1994/95 austral summer
, were found in 20 trawl catches. Juvenile or adult notothenioid fishes were never found in a random ... of 1995 (from 30 January to 18 February) on board F/V Niitaka Maru to the north of the South Shetland ... of by-catch fishes was higher in krill hauls with the low catch rates. Author(s): Iwami, T. Title ...
Meeting Document : WG-EMM-95/56 : Auteur(s): Iwami, T.
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e-sc-xxxvi-a04.pdf
... a proposal for a dedicated krill survey in Division 58.4.1 in 2018/19. The plan proposed to repeat ... ‘fisheries: Sv raw pings T1’ virtual variable in the Echoview template) 38 kHz Start depth 20 m ... filter are: minimum in-range: –20 dB maximum in-range: 20 dB. The conversion factor found in the ... consistent with scientific surveys conducted in this subarea in previous years. The authors of SG-ASAM-17/04
application/pdf attached to:SG-ASAM-17Meeting Report : SG-ASAM-17