Résultats de la recherche
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Evaluating the impact of multi-year research catch limits on overfished toothfish populations
Paper Title: Evaluating the impact of multi-year research catch limits on overfished toothfish ... populations Abstract / Description: In stocks that have been depleted by overfishing, the benefit of ... may contribute to delaying or preventing the recovery of such stocks. Through simulating a Patagonian ... toothfish (Dissostichus eleginoides) stock that has been subjected to varying levels of overfishing and ... ; they were considered to be below 20% of median spawning stock biomass prior to fishing (SSB0). For ... example, very high levels of illegal, un- regulated and unreported (IUU) fishing on Ob and Lena Banks ... (estimated to have caught 7 086 tonnes of Patagonian toothfish (Dissostichus eleginoides) between 1996 and ... in 2002 (CCAMLR, 2002). The relationship of the stock on Ob and Lena Banks to other stocks in the ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 47–55 : Auteur(s): Welsford, D.C
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Potential impacts of bottom trawling on benthic communities in Prydz Bay, Antarctica
Paper Title: Potential impacts of bottom trawling on benthic communities in Prydz Bay, Antarctica ... Abstract / Description: This paper presents data on benthos retrieved in bottom trawls during a survey of ... examine a potential impact of bottom trawling on benthic communities in this region. The benthos was ... examined in trawls at 14 of the 22 random stations providing representative samples from different areas in ... SC-CAMLR-X/BG/19 POTENTIAL IMPACTS OF BOTTOM TRAWLING ... data on benthos retrieved in bottom trawls during a survey of demersal finfish species in Prydz Bay by ... Australia in the 1990/91 season. The data collected are used to examine a potential impact of bottom ... trawling on benthic communities in this region. The benthos was examined in trawls at 14 of the 22 random ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 403–410 : Auteur(s): Constable, A.J.
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An assessment of the mackerel icefish (Champsocephalus gunnari) off Heard Island
Paper Title: An assessment of the mackerel icefish (Champsocephalus gunnari) off Heard Island ... Abstract / Description: Assessments of the abundance and potential yield of the mackerel icefish ... (Champsocephalus gunnari) populations at Heard Island are developed from the results of four scientific surveys ... conducted in 1990, 1992, 1993 and 1997. The assessments include estimates of all the parameters required ... ASSESSMENT OF THE MACKEREL ICEFISH (CHAMPSOCEPHALUS GUNNARI) OFF HEARD ISLAND W.K. de la Mare, R. Williams ... , Australia *Correspondence should be addressed to A.J. Constable Abstract Assessments of the abundance ... and potential yield of the mackerel icefish (Clzanzpsocephalus guiznari) populations at Heard Island ... are developed from the results of four scientific surveys conducted in 1990,1992,1993 and 1997. The ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 79–101 : Auteur(s): de la Mare, W.K., R. Williams and A.J. Constable
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Catch-at-age analysis applied to new fisheries: the case of Dissostichus eleginoides
Paper Title: Catch-at-age analysis applied to new fisheries: the case of Dissostichus eleginoides ... Abstract / Description: Traditionally, the approach used in the assessment of new fisheries has been based ... on research surveys, making it possible to estimate the standing stock and potential yield of a ... resource by coarse methods. The main aim of such surveys is to monitor fishing operations in order to ... FISHERIES: THE CASE OF DISSOSTICHUS ELEGINOIDES A.V. Zuleta1 and C.A. Moren02 Abstract Traditionally ... , the approach used in the assessment of new fisheries has been based on research surveys, making it ... possible to estimate the standing stock and potential yield of a resource by coarse methods. The main aim ... of such surveys is to monitor fishing operations in order to develop a comprehensive sampling design ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 3–9 : Auteur(s): Zuleta, A.V. and C.A. Moreno
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Preliminary model of krill fishery behaviour in Subarea 48.1
Paper Title: Preliminary model of krill fishery behaviour in Subarea 48.1 Abstract / Description ... : A simple model of the behaviour of the krill fishery in FAO Statistical Subarea 48.1 (South Shetland ... Islands and Antarctic Peninsula) is described. Parameters of the model are calculated from Chilean fishery ... data over the period 1989 to 1992. The distribution of catches predicted by the model, which is ... CCAMLR Science, Vol. 1: 71-79 PRELIMINARY MODEL OF ... simple model of the behaviour of the krill fishery in FAO Statistical Subarea 48.1 (South Shetland ... Islands and Antarctic Peninsula) is described. Parameters of the model are calculated from Chilean ... fishery data over the period 1989 to 1992. The distribution of catches predicted by the model, which is ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 71–79 : Auteur(s): Agnew, D.J. and V.H. Marín
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Notothenia (P.) guntheri stock status and TAC estimation in the area of Shag Rocks (Subarea 48.3)
Paper Title: Notothenia (P.) guntheri stock status and TAC estimation in the area of Shag Rocks ... (Subarea 48.3) Abstract / Description: Data on age composition of catches and fishing efforts for 1979/80 ... -1987/88 were used to analyse N. guntheri stock status. On the basis of these data using VPA method with ... -0.9 (Atlantic Fisheries Research Institute data). To estimate terminal value of instantaneous fishing ... TAC ESTIMATION IN THE AREA OF SHAG ROCKS (SUBAREA 48.3) K. Shust and R. Borodin Abstract Data ... on age composition of catches and fishing efforts for 1979/80-1987/88 were used to analyse N ... . guntheri stock status. On the basis of these data using V P A method with different adjustments stock ... Research Institute data). To estimate terminal value of instantaneous fishing coefficient (F) different ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 53-68 : Auteur(s): Shust, K. and R. Borodin
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On the intensity of sampling krill trawl catches
Paper Title: On the intensity of sampling krill trawl catches Abstract / Description: This paper ... uses actual krill length-frequency data in an attempt to address the problem of the determination of ... . The possible effect of two other factors (within-trawl variability and sample decomposition) which may ... measurements of length from commercial krill; catches should be made, as far as possible, by a single observer ... WG-KRILL-90/27 ON THE INTENSITY OF SAMPLING KRILL TRAWL ... address the problem of the determination of adequate sample size to obtain representative krill length ... -frequency distributions from commercial catches. The possible effect of two other factors (within-trawl ... . Attention is drawn to the following: • all measurements of length from commercial krill catches should be ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 29–48 : Auteur(s): Miller, D.G.M.
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Fishing intensity of the Soviet fleet in krill fisheries in the southern Atlantic (Subareas 48.2 and 48.3)
Paper Title: Fishing intensity of the Soviet fleet in krill fisheries in the southern Atlantic ... (Subareas 48.2 and 48.3) Abstract / Description: This paper provides an assessment of the impact of the ... % of the total catch. The calculations were based on haul-by-haul data from the Soviet fleet, using a ... probability statistical theory of fishery systems developed at AtlantNIRO. The impact of the commercial fleet ... (2003): 15–35 15 FISHING INTENSITY OF THE SOVIET FLEET IN KRILL FISHERIES IN THE SOUTHERN ATLANTIC ... 236000, Russia Email – ks@atlant.baltnet.ru Abstract This paper provides an assessment of the impact of ... to more than 95% of the total catch. The calculations were based on haul-by-haul data from the ... Soviet fl eet, using a probability statistical theory of fi shery systems developed at AtlantNIRO. The ...
Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 15–35 : Auteur(s): Kasatkina, S.M. and V.F. Ivanova
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Low genetic diversity and temporal stability in the Antarctic toothfish (Dissostichus mawsoni) from near-continental seas of Antarctica
(Dissostichus mawsoni) from near-continental seas of Antarctica Abstract / Description: This study presents ... data on the DNA analysis of recent (2011–2013) samplings of Antarctic toothfish (Dissostichus mawsoni ... analysis of the most informative subset of nuclear genetic markers of SNP variation presented in Kuhn and ... Gaffney (2008), do not support genetic differentiation of samples from the Ross Sea. Discrepancies in the ... late 1990s and the fleet use mainly bottom-set longlines at depths of 1 200–1 800 m. Defining the ... population structure of D. mawsoni is crucial for improved management of the tooth- fish fishery, but the ... number of populations or stock units is unknown and is the subject of scientific debate. There may be ... differentiation could take place among different sectors of Antarctica – most particularly between the Ross Sea ...
Science Journal Paper : CCAMLR Science, Volume 21 (CCAMLR Science, Volume 21) : 1–9 : Auteur(s): Mugue, N.S., A.F. Petrov, D.A. Zelenina, I.I. Gordeev and A.A. Sergeev
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Midwater trawl catchability in relation to krill and possible ways of assessing gross catch
Paper Title: Midwater trawl catchability in relation to krill and possible ways of assessing ... the basis of data obtained from AtlantNIRO expeditions from 1983 to 1990 in the Scotia Sea. A ... methodology was developed for and applied to determining the rate of krill filtration through the trawl rope ... and netting and also the probability that krill will come into contact with various parts of the net ... TO KRILL AND POSSIBLE WAYS OF ASSESSING GROSS CATCH Yu.V. Zimarev*, S.M. Kasatkina* and Yu.P ... . Frolov** Abstract Research into midwater trawl catchability rates was carried out on the basis of ... developed for and applied to determining the rate of krill filtration through the trawl rope and netting ... and also the probability that krill will come into contact with various parts of the net as it passes ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 87–113 : Auteur(s): Zimarev, Yu.V., S.M. Kasatkina and Yu.P. Frolov