Résultats de la recherche
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An assessment of the impact of krill fishery on penguins in the South Shetlands
-20 day), the present catch rate (≤10 x103t/10-day) is smaller by one or more orders of magnitude ... . Author(s): T. Ichii, M. Naganobu and T. Ogishima (Japan) Title: An assessment of the impact of krill ...
Meeting Document : WG-KRILL-93/07 : Auteur(s): T. Ichii, M. Naganobu and T. Ogishima (Japan)
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DEVELOPING FOUR PLAUSIBLE PARAMETERISATIONS OF FOOSA (A SO-CALLED REFERENCE SET OF PARAMETERISATIONS) BY CONDITIONING THE MODEL ON A CALENDAR OF EVENTS THAT DESCRIBES CHANGES IN THE ABUNDANCES OF KRILL AND THEIR PREDATORS IN THE SCOTIA SEA
abundance, one or two stock-recruitment parameters for each predator population to the numerical calendar ... calendar would be feasible. Second, we tuned, via sums of squares, one stock-recruitment parameter for each ... most of this paper, we found a small error in the initial conditions used in one of our four ... effort to conduct a risk assessment using the reference set. Author(s): G.M. Watters, J.T. Hinke (USA ...
Meeting Document : WG-EMM-08/13 : Auteur(s): G.M. Watters, J.T. Hinke (USA) and S. Hill (United Kingdom)
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Assessment of krill biomass in fishing grounds using the data on fishing intensity and hydroacoustic method
midwater trawl. Two methods were used for this purpose: modelil1ing the probabilistic-statistical theory of ... enough as multiple echo location of one and the same shoal is actually out of the question because of ... fishing trawls in order to illustrate the closeness of the two methods. The estimates of the krill biomass ... senior scientist Myskov A.S. Author(s): USSR Title: Assessment of krill biomass in fishing grounds ...
Meeting Document : SC-CAMLR-VIII/BG/10 : Auteur(s): USSR
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A comparison of acoustic targets at South Georgia and the South Orkney Islands during a season of profound krill scarcity
signal strength between the two frequencies (δMVBS = MVBS 120 kHz- MVBS 38 kHz) was used to partition ... density; for example one echo-integration interval contained 104 times the mean krill density. An ... approximate six-fold difference in mean krill abundance was detected between the two areas, but in comparison ... contained large numbers of small zooplankton such as the amphipod Themisto gaudichaudii. Author(s): Watkins ...
Meeting Document : WG-EMM-95/75 : Auteur(s): Watkins, J.L., Brierley, A.S.
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Research plan for the 2016/17 exploratory longline fishery of Dissostichus spp. in Subarea 48.6 by South Africa and Japan
and preliminary CASAL models. We divided the two areas for block 48.6_2 by latitude of 55.2°S to ... abnormal data for the two vessels in block 48.6_2, therefore we removed the data for the current analysis ... addition, we considered that only recaptures for 1 year at liberty is effective to estimate the ... . We estimated predicted numbers of recaptures in the next three years using present catch limit and ...
Meeting Document : WG-SAM-16/07 : Auteur(s): Delegations of Japan and South Africa
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Preliminary assessment of Dissostichus eleginoides on the Heard Island Plateau (Division 58.5.2) based on a survey in April–May 2003
of the length distribution of the catches suggest that the two gears sample a similar range of sizes ... length at age vector that did not include growth beyond 15 years had only small effects on projected long ... estimate for 2004 was 2,680 t. Initial tests of length at age assumptions indicated that using a specified ... of growth beyond this age at 58.5.2. Preliminary examinations of the effect of refinements to the ...
Meeting Document : WG-FSA-03/33 : Auteur(s): A.J. Constable, C.R. Davies, R. Williams and T. Lamb (Australia)
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REVIEW OF CCAMLR ACTIVITIES ON MONITORING MARINE DEBRIS IN THE CONVENTION AREA
sites, however only two of these sites have reported data for consecutive seasons. The most common ... Bird Island, South Georgia over the last 13 years, but only small amounts from the other sites. Since ... years at any of the sites monitored. Although the amount of beached marine debris reported from Bird ... it for inclusion in the CCAMLR Marine Debris database. Author(s): Secretariat Title: REVIEW OF ...
Meeting Document : WG-FSA-08/09 : Auteur(s): Secretariat
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Korean research plan in Subarea 88.3 in 2016/17
recapture. it was further noted that there was no research activities more than two consecutive years in the ... /16 season the Korean flagged vessel, Greenstar, conducted 1 st year research in this area. Total of ... 88.3 she did not find any recaptures of previous surveys. In second research year, the Greenstar is ... results in an assessment of a stock in 3-4 years time (SC-CAMLR XXVIII, paragraphs 4.165). During the 2015 ...
Meeting Document : WG-SAM-16/11 : Auteur(s): Delegation of the Republic of Korea
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Research plan for the exploratory longline fishery for Dissostichus spp. in Subarea 88.3 in 2017/18
recapture. it was further noted that there was no research activities more than two consecutive years in the ... /17 season the Korean flagged vessel, Greenstar, conducted 2 nd year research in this area. Total of ... 88.3 she did not find any recaptures of previous surveys. In third research year, the Greenstar is ... results in an assessment of a stock in 3-4 years time (SC-CAMLR XXVIII, paragraphs 4.165). During the 2016 ...
Meeting Document : WG-SAM-17/43 : Auteur(s): Delegation of the Republic of Korea
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Spatial and seasonal distribution of adult Oithona similis in the Southern Ocean: predictions using boosted regression trees
of the cyclopoid copepod Oithona similis in the Southern Ocean. Nearly 20 000 samples from the ... , with surface abundances 20% higher at night than during the day. There was no evidence of diel ... Scotia Sea, two areas off east Antarctica, in the frontal zone north of the Amundsen Sea, and a small ... distribution of this species. (Deep-Sea Res. I, 57 (2010): 469–485) Author(s): M.H. Pinkerton, A.N.H. Smith, B ...
Meeting Document : WG-EMM-10/P14 : Auteur(s): M.H. Pinkerton, A.N.H. Smith, B. Raymond, G.W. Hosie, B. Sharp, J.R. Leathwick and J.M. Bradford-Grieve