Search results
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On assessment of Bertalanffy growth equation parameters and instantaneous natural mortality rate of South Georgia mackerel icefish
reliable weight-length equations for males and females by season and the verification of parameters for the ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 29–36 : Author(s): Frolkina, Zh.A. and R.S. Dorovskikh
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Natural mortality rate in the mackerel icefish (Champsocephalus gunnari) around South Georgia
provide an estimate that is unaffected by confounding effects mainly due to recruitment variation, but ... that is unaffected by confounding effects mainly due to recruitment variation, but also possibly due ... of harvesting, when by definition F will be zero, Z will equate to M so that a good estimate can be ... (1990) and this was considered in detail at the WG-FSA meeting by Sparre (1989). Pending the provision ... (1990). Apparently, no analyses using M = 0.35 were undertaken at that time. The recent study by ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 245–257 : Author(s): Everson, I
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Guidelines for the preparation of hydroacoustic survey reports on krill
OpraHH3aUHH 9KCne~HUHH, ee uenh H 3a~a~H, COCTaB HaY~HOH rpynnH, npHBO~HT MapmpYTHyID CXeMY peHCa ... M, rrOCTOB:HHaH HHTerpaTopa CH = 234 1/B2c, ~YBCTBHTenbHOCTb aHTeH@ rro rrpHeMY c;e= 530 MKB/ITa, 3BYKOBoe ... H3MeHHnHCb, a 3Ha"tIeHHH aKYCTH"tIeCKHX HeCKonbKO CHH3HnHCb; rrO-B~HMoMy,aTo OObRCHReTCR oopaCTaHHeM ... . IToaToMY B paC"tIeT opanH TaOnH"tIHb1e 3Ha"tIeHHR Koa~~H~HeHTa rrOTepb BB~Y H30b1TO"tIHOrO 3aTyxaHHR ... a report of a hydroacoustic survey performed as part of FIBEX by the Soviet research vessel Odyssey ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 165-193 : Author(s): Kalikhman, I.L.
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1989/1990 stock status and TAC assessment for Patagonotothen brevicauda guntheri in South Georgia subarea (48.3)
material for 1978/79 through 1988/89 collected by Soviet scientists. VPA tuning has been accomplished using ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 101–110 : Author(s): Shlibanov, V.I.
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Estimating confidence intervals for fish stock abundance estimates from trawl surveys
estimates of abundance obtained from trawl surveys conducted by means of the swept area method, using ... by means of the swept area method, using likelihood ratios from Aitchison's delta distribution ... ) progress on the statistical considerations of the swept area method was hampered by the absence of ... examined by Aitchison (1955), and Pennington (1983) has recommended using Aitchison's delta distribution ... -likelihood of a vector of observations X , ... X N from a delta distribution is given by: where N is the ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 203–207 : Author(s): de la Mare, W.K
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A first attempt at an assessment of the Patagonian toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands EEZ
reviewed briefly. It is characterised by very large illegal catches and a sharply declining longline catch ... is characterised by very large illegal catches and a sharply declining longline catch-per-unit ... -effort (CPUE). This paper presents a fi rst attempt at a quan- titative assessment of the resource, by ... , followed by descriptions of the data available and the meth- odology applied. Results are considered for ... , the clauses on access and access rights were being negotiated by the South African Fisheries Policy ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 11–32 : Author(s): Brandão, A., D.S. Butterworth, B.P. Watkins and D.G.M. Miller
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Protecting young fish and spawning aggregations of Champsocephalus gunnari in Subarea 48.3 (South Georgia): a review
measures put in place by CCAMLR to date. These measures are re-examined in the light of new information ... these objectives are discussed, including the measures put in place by CCAMLR to date. These measures ... discussed in depth by the Scientific Committee nor its Working Group on Fish Stock Assessment (WG-FSA) for ... is operating. Some very modest success was achieved by one vessel operating in the commercial ... these objectives, and catalogues the measures put in place by CCAMLR to date. These measures are re ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 75–86 : Author(s): Parkes, G.B
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Fish stock assessment survey in Subarea 48.3
decline by comparison with results from the 1989/90 season. Other species do not show a similar dramatic ... have undergone a major decline by comparison with results from the 1989/90 season. Other species do ... this subarea has been emphasised by the CCAMLR Working Group on Fish Stock Assessment (WG-FSA) (SC ... -CAMLR, 1990a). This report presents the results from a fish stock assessment survey undertaken by the ... divided into CCAMLR 'fine-scale rectangles' half a degree of latitude by one degree of longitude. Within ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 25–67 : Author(s): Everson, I., G. Parkes, K.-H. Kock, S. Campbell, Z. Cielniaszek and J. Szlakowski
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Size at sexual maturity of Patagonian toothfish (Dissostichus eleginoides)
6brna roTosa K HepecTy. TO npmogm K cMeLqeHMm, BbI3bIBammeMy 3aBbIUIeHHym OQeHKy L,,,io IIpM ... bias leading to the overestimation L m50 of calculated by conventional methods. Further analysis ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 37–46 : Author(s): Everson, I. and A.W. Murray
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Methods of age determination for mackerel icefish (Champsocephalus gunnari Lönnberg 1905) from the South Georgia Island shelf
of mackerel icefish (Champsocephalus gunnari) from the South Georgia shelf were determined by ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 37–49 : Author(s): Frolkina, Zh.A.