Search results
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Management and uncertainty: the example of South Georgia
action (i.e. the use of 140 mm mesh) as being the best, but this is not the common situation ... years being due to the second burst of relatively high catches in 1979/80, management policy must ... line) is not consistent with the catches being concentrated in a few years (1969/70, 1970/71 and 1980 ... identification, some other species being included in the peak catches of Notothenia, and some Notothenia ... (including the effects of doing nothing) could provide a procedure for providing advice that could cope with ... : Decisions on fishery management are often made with some degree of uncertainty in scientific advice. Such ... uncertainty is unlikely to be avoided even though further research should reduce its degree. It seems useful ... . From an examination of Articles IX 2(f) and XV 2(e, d) of the CCAMLR Convention it follows that a ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 341-353 : Author(s): Gulland, J.A.
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Precautionary measures for a new fishery on Martialia hyadesi (Cephalopoda, Ommastrephidae) in the Scotia Sea: an ecological approach
catches. This species is eaten by seals, whales and seabirds, the latter being the most reliable source ... being the most reliable source of consumption data because comprehensive sampling can be carried out ... by seals, whales and seabirds, the latter being the most reliable source of consumption data because ... eXerOnHOr0 II0Tpe6neHHR 3T0r0 BMfla XHWHHKBMH BepXHHX 3BeHbeB T P O @ I I Y ~ C K O ~ ~ UenH, a TaKXe HH ... 3 ~ c n n y a ~ a ~ ~ m 3aMaCa TofibKO TOrAa, KOrAa ~ O ~ ~ U I H H C T B O BHnOB-XHUHEIKOB BepXHkIX 3BeUbeB ~po@muec~ofi qena ... back-calculated to have been in July/August. Although the males were mature (IV-V), all the females ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 125–139 : Author(s): Rodhouse, P.G
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Editorial
, quite often authors refer to their findings being ‘important to CCAMLR’ yet those papers do not get ... refer to their findings being ‘important to CCAMLR’ yet those papers do not get submitted ... by the need to publish (or be damned), however, quite often authors refer to their findings being ‘important ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 167 : Author(s): Editors
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Target strength studies on Antarctic silverfish (Pleuragramma antarcticum) in the Ross Sea
where mixed species occur. In the global method the fish density, species and size determined ... from the global method than in those from the direct method. However, faced with mixed populations ... ), some sizes of P. antarcticum could be confused acoustically with E. crystallorophias, but not with E ... -larvae of P. antarcticum with a total length from 13 to 70 mm, were conducted in the southeast of the ... indicate that the TS–TL relationships at 38, 120 and 200 kHz of adults of P. antarcticum differ ... both ex situ and in situ with a mean difference <1.5 dB, although the differences between the ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 75–104 : Author(s): Azzali, M., I. Leonori, I. Biagiotti, A. De Felice, M. Angiolillo, M. Bottaro and M. Vacchi
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Archival and satellite-linked data recorders
. These recorders are deployed on freely swimming animals and gather data on aspects of an animal’039;s diving ... similar instruments are being developed in Dr G. Kooyman's laboratory, and may become available ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 475-493 : Author(s): Hill, R.D.
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Analysis of albatross and petrel distribution within the CCAMLR Convention Area: results from the Global Procellariiform Tracking Database
of at-sea observation data (e.g. White et al., 2001; Woehler et al., 1999), but are also among the most ... periods that apply to Subarea 48.3 (open 1 May–31 August, closed 1 September–30 April). Assessment ... . Nevertheless, the volume of data currently being collected indicates that this will be possible in the near ... ; Prince et al., 1998; Weimerskirch, 1998; Freeman et al., 2001; Robertson et al., 2003). Collaboration ... , the subareas with the highest proportion of albatross and petrel breeding distribution were Subareas ... petrel breeding ranges extend across the majority of the Convention Area. Subareas with the lowest ... identified, especially relating to studies of nonbreeding distribution. These data will be essential for ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 143–174 : Author(s): BirdLife International (prepared by C. Small and F. Taylor)
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Foraging behaviour and reproductive success in chinstrap penguins: the effects of transmitter attachment
, OCTPOB CHJI, IO)I{HbIe IIIeT JIaH,l(CKHe oCTpoBa, AHTapKTHKa. BeJIHtIHHbI B cKo6Kax YKa3bIBaIOT Ha ... revealed that nests with both members equipped with a transmitter fared worse than both the control group ... method with which to monitor foraging trip duration in penguins by the CCAMLR (Commission for the ... 10 nests were equipped with a radio transmitter, 120 nests were used as a control group. The results ... of this study demonstrate that, for the size of transmitter used (1.4 cm 2 front section area); there ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 291–303 : Author(s): Croll, D.A., J.L. Bengtson, P.L. Boveng, M.E. Goebel and J.K. Jansen
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Midwater trawl catchability in relation to krill and possible ways of assessing gross catch
perishing as a result of the impact of fishing gear. Midwater trawl catchability rates are today being ... rigging, i.e., the probability of the target species being caught in the trawl mouth from within ... catchability rates, P = PrPk-c, but also the amount of kriU being filtered through the trawl rope rigging ... capabilities of the netting sections of the three trawls being examined as well as the level of traumatism ... and netting and also the probability that krill will come into contact with various parts of the net ... demonstrated that the theoretical model agreed well with the real situation. Analysis of the efficiency of ... midwater trawls in the krill fishery indicates that the potential exists for this efficiency to be ... as it passes through the trawl sides. Studies were based on the results of 250 hauls made with a 72 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 87–113 : Author(s): Zimarev, Yu.V., S.M. Kasatkina and Yu.P. Frolov
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Simulation of recovery rates of fish stocks in the South Georgia and Kerguelen Islands areas
1997 76.771 10.381 19'7'8 81~222 11.151 1999 80.340 11 .248 2000 BO.1E:l 11.625 2001 74.125 10.669 ... ,~, '-' 2001 73.395 5.579 2002 74.454 5.666 2003 71.571 5.411 2004 75.960 5.636 AVE 69.170 5.130 Stock ... 1998 3. 06 23 93 · 06 1999 2. 99 ',7 .. ..::, . ...:. 92 06 2000 2. 94 1 02 06 2001 2.99 ... 1 'i S:' 4 1995 1996 :t'i9? 1998 19'79 2000 2001 2002 2003 2004 AVE 1987 1988 1989 19'7'0 1991 ... rebuilding of the depleted stocks and improvement in yields. It is desirable that such measures be based on ... average, with the past observations. The simulations may prove useful in comparing observed performance of ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 229-298 : Author(s): Hennemuth, R.C., K.D. Bisack and G. Duhamel
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Mesopelagic fish of the Southern Ocean - summary results of recent Soviet studies
of winter (June/July) or at the beginning of spring (August/September). From November to May gonads ... in the waters of the anticyclonic gyre around South Georgia and Shag Rocks and another in the mixed waters ... Ocean sector covers waters to the south of the Antarctic Convergence up to the zone of mixing of waters ... these species are summarized in tables with details on area, season and source of data. Some data, e.g ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 433–457 : Author(s): Sabourenkov, E.N.