Search results
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Estimating optimal observer coverage in the Antarctic krill fishery
% of total hauls per vessel per season and 31% per vessel per season for larval fish. Between-vessel ... is sufficiently close to 50% that sampling needs to be efficient at both vessel and haul level. It is proposed ... % of total hauls per vessel per season and 31% per vessel per season for larval fish. Between-vessel ... is sufficiently close to 50% that sampling needs to be efficient at both vessel and haul level. It is proposed ... equivalent to 18% of total hauls per vessel per season and 31% per vessel per season for larval fish ... variance. However, the ratio is sufficiently close to 50% that sampling needs to be efficient at both ... navire et par saison, ainsi que 31% par navire et par saison pour les poissons larvaires. Une estimation ... криля коэффициента отбора проб, равного 18% всех выборок на судно за сезон, а для личинок рыбы – 31% на ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 139–154 : Author(s): Agnew, D.J., P. Grove, T. Peatman, R. Burn and C.T.T. Edwards
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Krill population biology during the 1991 Chilean Antarctic krill fishery
at consistently greater depths. Research was financed by INACH (Chilean Antarctic Institute). File: 13-Mujica-et ... at consistently greater depths. Research was financed by INACH (Chilean Antarctic Institute). ... -l31-1pOBaHbI ,llBe nO,llBbI60PKI-I, COCTO.5Ill(l-Ie 1-13 100 oc06eti. IIPOMbICJlOBblti ytIaCTOK ... 16:10 23.02.91 62°31,8' 61 °09,0' 2.50 45 40 23:20 23.02.91 62°30,5' 61 °21,0' 3.20 52 44 07:05 ... 24.02.91 62°31,3' 61°24,2' 3.60 50 46 11:30 24.02.91 62°31,5' 61 °26,8' 3.70 45 47 13:30 24.02.91 62°32,6 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 223–235 : Author(s): Mujica R., A., E. Acuña S. and A. Rivera O.
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Evaluating the impact of multi-year research catch limits on overfished toothfish populations
of additional fisheries removals for research purposes needs to be evaluated against the risk that such catches ... in the long term. Research catches may need to be even lower where there is uncertainty regarding the key ... for research purposes needs to be evaluated against the risk that such catches may contribute to delaying ... catches may need to be even lower where there is uncertainty regarding the key parameters related to stock ... depleted by overfishing, the benefit of additional fisheries remov- als for research purposes needs ... not significantly impact on the recovery of depleted stocks in the long term. Research catches may need to be even ... 28 29 30 31 32 34 2 15 21 22 24 25 26 27 28 3 20 17 17 19* 20 21 22 23 4 25 15 16 16 17 17 18 19 ... fishing program, needs to be very carefully evaluated. As shown above, catches that may appear minor ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 47–55 : Author(s): Welsford, D.C
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Distribution and population structure of Dissostichus eleginoides and D. mawsoni on BANZARE Bank (CCAMLR Division 58.4.3b), Indian Ocean.
spp. on BANZARE Bank and adjacent waters needs to consider species-specific distribution and possible ... needs to consider species-specific distribution and possible migration. ... spp. on BANZARE Bank and adjacent waters needs to consider species-specific distribution ... e Fe m al e M al e Fe m al e M al e Fe m al e M al e D . e le gi no id es 31 ... 6. 3 (1 4. 7) 59 –1 50 57 –1 50 0. 26 ( 0. 13 ) 0. 08 (0 .0 8) D . m aw so ni 31 D ec ... for D. eleginoides, but further investigations are needed on the habitat tempera- ture of these two species ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 145–153 : Author(s): Taki, K., M. Kiyota, T. Ichii and T. Iwami
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Food consumption by predators in a CCAMLR integrated study region
during their breeding seasons within specified areas. File: 31-Croxall-et-al.pdf ... Georgia, partly driven by the needs of CCAMLR and partly by the Government of South Georgia and the South ... differ, the food consumption of each component needs to be assessed separately. Moreover, although most ... 14 15-19 20 21-25 26 27-31 32 33-37 Contents Blank a or b for activity 1 Blank ... be appropriate; the names of the eight prey categories would simply need to be altered within the program ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 489–519 : Author(s): Croxall, J.P., C. Ricketts and A.G. Wood
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CCAMLR ecosystem monitoring and management: future work
of a single species (Antarctic krill, Euphausia superba), it takes account of the needs of predators ... of fishing on krill predators. CCAMLR needs to adopt a management procedure which has a good chance ... of maintaining ecological relationships and meeting the needs of predators, incorporating: (i) operational ... , and the types of procedures already proposed for management of the krill fishery. It highlights the need ... account of the needs of predators in the assessment of catch limits. The success of this process is due ... (CEMP) was set up to detect the effects of fi shing on krill predators. CCAMLR needs to adopt ... a management procedure which has a good chance of maintaining ecological relationships and meeting the needs ... of the krill fi shery. It highlights the need to focus future work in these areas, including the need ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 233–253 : Author(s): Constable, A.J
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Bias in the estimation of krill yield from using a deterministic formulation of the median unexploited spawning biomass
. Consequently, the median pre-exploitation biomass needs to be estimated prior to each trial in order ... needs to be estimated prior to each trial in order for it to be based on the parameters for that trial ... . Consequently, the median pre-exploitation biomass needs to be estimated prior to each trial in order ... , the median pre-exploitation biomass needs to be estimated prior to each trial in order for it to be based ... of uncertainty. CCAMLR Science, 3: 31-54. Many thanks to Geoff Kirkwood for his SC-CAMLR. 1994. Report ofthe ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 1–8 : Author(s): Constable, A.J. and W.K. de la Mare
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Beyond MSY: a consideration of definitions of management objectives
is with recruitment or growth overfishing. Account also needs to be taken of the uncertainties associated with any ... is with recruitment or growth overfishing. Account also needs to be taken of the uncertainties associated with any ... . Account also needs to be taken of the uncertainties associated with any assessment. Suggestions are made ... provide clear guidance on the need for management. If the population is below the level giving MSY ... or GNAI level, then management is needed. Under more realistic conditions they will differ. Also ... in more complex situations the components of the right hand side need to be examined separately ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 299-322 : Author(s): Gulland, J.A.
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Distribution and size of Antarctic krill (Euphausia superba Dana) in Polish commercial catches taken in the Atlantic sector of the Southern Ocean from 1997 to 1999
varied from 11 to 31 370 specimens per 1 000 m 3. At night, krill concentrations were scattered ... varied from 11 to 31 370 specimens per 1 000 m3. At night, krill concentrations were scattered throughout ... varied from 11 to 31 370 specimens per 1 000 m3. At night, krill concentrations were scattered ... très diverse, la densité moyenne variant de 11 à 31 370 spécimens par 1 000 m3. La nuit, les ... . Внутренняя структура концентраций была очень разнообразной: средняя плотность составляла от 11 до 31 370 ... interna de las agregaciones varió considerablemente y la densidad promedio fl uctuó entre 11 y 31 370 ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 83–105 : Author(s): Jackowski, E
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Can we satisfactorily estimate variation in krill abundance?
variation. The timescale for such information is discussed in the light of the needs of fishery management ... induced variation. The timescale for such information is discussed in the light of the needs of fishery ... variation. The timescale for such information is discussed in the light of the needs of fishery management ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 375-376 : Author(s): Everson, I.