Search results
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A comparison between otoliths and scales for use in estimating the age of Dissostichus eleginoides from South Georgia
The observer on board the longliner FV Kolyo Mar11 2 1 took samples from catches made between April and June ... sampled fish is averaging effect under the central limit theorem shown in Figure 2, and mean age ... le bord d u premier anneau. Le passage des symboles fonces aux symboles claires marque la limite ... oscuro a claro establece el limite entre la regicin de anillos anuales grandes y precisos j r la ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 75–92 : Author(s): Ashford, J.R., S. Wischniowski, C. Jones, S. Bobko and I. Everson
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Krill biomass assessment in Statistical Area 48 from the RV AtlantNIRO data - Autumn 1989/90
k = density, mg/m3 m = catch,mg m K=-w w = swept water volume, m3 (according to flowmeter readings ... as the paucity of data and the limitations involved in such a comparison, a relative similarity may point ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 115–121 : Author(s): Fedotov, A.C.
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Potential nursery areas for fish in the Prydz Bay region
cria. 1. INTRODUCTION As a result of debate on the potential of a significant by-catch of juvenile ... and thus those to be avoided by krill fishing operations if fish by-catch is to be minimised ... of the catch, with various channichthyid and nototheniid species making up the rest. Because of some ... 2 shows the catches of P. antarcticum in the near surface hauls. Large numbers (up to 9100/30 min haul ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 369–380 : Author(s): Williams, R.
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Information on the status of fjord Notothenia rossii, Gobionotothen gibberifrons and Notothenia coriiceps in the lower South Shetland Islands, derived from the 2000–2006 monitoring program at Potter Cove
in trammel net catches of fjord Notothenia rossii and Gobionotothen gibberifrons in relation to the non ... of N. rossii catches from 1991 to 2006, the actual levels are half of those found in the early 1980s, while ... in the catches. These trends are consistent with those observed in scientific cruises studying the offshore ... catches of fjord Notothenia rossii and Gobionotothen gibberifrons in relation to the non-commercially ... in trammel net catches of fjord Notothenia rossii and Gobionotothen gibberifrons in relation to the non ... trend of N. rossii catches from 1991 to 2006, the actual levels are half of those found in the early ... in the catches. These trends are consistent with those observed in scientifi c cruises studying the offshore ... factor (years) were highly signifi cant (Table 1). The non-parametric regression of the relative catches ...
Science Journal Paper : CCAMLR Science, Volume 14 (CCAMLR Science, Volume 14) : 83–87 : Author(s): Barrera-Oro, E.R. and E.R. Marschoff
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A simple approach for calculating the potential yield of krill from biomass survey results
that only a constant catch harvesting strategy has been considered. Beddington and Cooke also considered ... circumstances then (high M and low O'R), it becomes possible to catch effectively all krill older than the age ... +(y)= f Wa Ny,a exp[-{1.5 M/12+F(Y)/2}] (A.7) a=a+ The catch in number of laill over a season from ... , the annual catch in mass [C(y)] is therefore given by: 7 025 3 C(y) = L 50' 4F(Y) • Ny,a e-[M+4F ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 207–217 : Author(s): Butterworth, D.S., A.E. Punt and M. Basson
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International CCAMLR applied research and monitoring program, Prydz Bay priority area
are collected as a by-catch of the euphausiid research sampling program. - 291 - 4.3 Minke Whales ... input to krill studies may yield limited information on feeding concentrations of whales ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 283-295 : Author(s): Australia
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Age and growth of spiny icefish (Chaenodraco wilsoni Regan, 1914) off Joinville–D’Urville Islands (Antarctic Peninsula)
of juveniles in trawling catches and the limited sampling period did not allow determination of the timing ... /90 fishing season (Kock, 1992; Kock et al., 2004). Catch records from this area are incomplete ... and East German vessels, yielding an over- all catch of 14 450 tonnes in the two fishing seasons 1979–1981 ... . Additional catches of this species, about 4 600 tonnes, were also reported from the Indian Ocean sector ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 115–130 : Author(s): La Mesa, M., A. De Felice, C.D. Jones, K.-H. Kock
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Analysis of the diet of Champsocephalus gunnari at South Georgia in late summer from 1994 to 1997, Dr Eduardo L. Holmberg surveys
and Kellermann, 1991). In larger catches, the fish were subsampled to cover all the sizes present ... in the samples; in smaller catches, the whole catch was analysed. In order to facilitate Area Shag Rocks ... ). Except on a few occasions (four 24-hour stations in 1994), catches were obtained during daylight, from ... the catch was taken. On the second leg of the 1994 survey and during the * Data from the 1994 survey have ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 103–123 : Author(s): Barrera-Oro, E., R. Casaux and E. Marschoff
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The status of krill (Euphausia superba DANA) resources in CCAMLR Statistical Divisions 58.4.2 and 58.4.3 from 1988 to 1990. Results of acoustic surveys
based on the processing of echo sounder records and trawl catch data, but after this, only acoustic ... ° and 62°30'E. Daily catches by scientific survey vessels varied within a range of 10 to 35 tonnes ... decreases and immigration of krill from adjacent areas is limited, a reduction of krill biomass occurs ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 163–173 : Author(s): Bibik, V.A. and V.N. Yakovlev
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Distribution and size–age composition of Antarctic krill (Euphausia superba) in the South Orkney Islands region (CCAMLR Subarea 48.2).
in catches in 2009 or in 2010. This absence of 1+ E. superba is unlikely to be a result of trawl selectivity ... as adult Pygmy krill (E. frigida) (of the same size as 1+ krill) were present in the catches. File ... in the northern parts. No 1+ age cohort was found in catches in 2009 or in 2010. This absence of 1+ E. superba ... as 1+ krill) were present in the catches. ... ) waters in the northern parts. No 1+ age cohort was found in catches in 2009 or in 2010. This absence ... size as 1+ krill) were present in the catches. Keywords: Antarctic krill, South Orkney Islands ... was carried out using the conventional technique (landing of the trawl on deck), pumping the catch out ... with the catch pumped from the trawl codend while fishing. The full description of the configuration ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 123–134 : Author(s): Sologub, D.O. and A.V. Remeslo