Résultats de la recherche
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Estimating unaccounted fishing mortality in the Ross Sea region and Amundsen Sea (CCAMLR Subareas 88.1 and 88.2) bottom longline fisheries targeting Antarctic toothfish
estimator (Bradford, 2002): k hijk k hijk c hij u y = å å (4) where chijk was the catch in tonnes ... rate among different gear types. Reported hook loss rates by gear type are shown in Table 4, but the ... total number of sets with non-zero hook loss (Figure 4). Components of lost gear Table 8 summarises ... hook loss rates and absolute num- bers occurring in particular localised cells (de- tailed in Figure 4 ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 17–30 : Auteur(s): Webber, D.N. and S.J. Parker
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On the instantaneous natural mortality rate of Champsocephalus gunnari, South Georgia (Subarea 48.3)
formula: Step 4. The premise I p a _ P ~I < 8 is validated. If it is accurate then: • the new estimates ... was calculated as the mean weighted value of length for each age group (Table 4). The data ... mortality for C. gunnari is not less than 0.56. 318 4. CONCLUSION The authors consider that their ... 3anaCOB pbI6. MocKBa. OHTH, BHHPO: 4-42. KOCK, K.-H. 1981. Fischereibiologische Untersuchungen an drei ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 313–326 : Auteur(s): Frolkina, G.A. and R.S. Dorovskikh
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The Kerguelen database
sectors of the shelf are important 2, 3 and 4. - 27 - One species is dominant in each sector • main ... -349 m and 250-600 m during the winter • main sector for N. squamifrons 4 secondary sector main ... the species in the depth ranges (except between N. rossii and N. squamifrons in the sectors 3 and 4 ... ~ ----17---- 4 ° ° ° ----5---- _5 __ _ 0 __ _ 0 __ _ 0 __ 4 _1 ___ 0 __ _ 0 __ _ 0 __ -U--1L- _0 __ ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 23-54 : Auteur(s): Duhamel, G.
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Patterns and processes in the distribution and dynamics of Antarctic krill
food availability? 3. What is the interaction between spatial patterns and fishing behavior? 4. How ... intermediate scales (4-20 km). It is unfortunate that we do not yet have available comparable data for the ... . Macaulay), obtained 4-5 January 1987, aboard the RV Professor Siedlecki, were analyzed in the following ... normalized to the total power of the signal to obtain a normalized power spectrum (Figure 4). To ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 281–299 : Auteur(s): Levin, S.A., A. Morin and T.M. Powell
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Intra-annual variability in the density of Antarctic krill (Euphausia superba) at South Georgia, 2002–2005: within-year variation provides a new framework for interpreting previous ‘annual’ estimates of krill density
were confi gured to collect data in 8 m depth bins and to ping 7 times within a 4 min ensemble ... Georgia the sampling resolution of the ADCP (8 m × 4 min), enabling frequency differences from ... 0 32 –1 76 × 13 36 20 8 na × × × 4 12 / 11 / 03 –1 3/ 01 / 04 31 0 20 0 34 –1 86 ... × 13 34 22 7 21 –2 13 × 5 14 / 01 –2 4/ 03 / 04 30 0 19 8 32 –1 84 × 13 00 22 6 20 –2 12 ...
Science Journal Paper : CCAMLR Science, Volume 14 (CCAMLR Science, Volume 14) : 27–41 : Auteur(s): Saunders, R.A., A.S. Brierley, J.L. Watkins, K. Reid, E.J. Murphy, P. Enderlein and D.G. Bone
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2013 Report on bottom fisheries and vulnerable marine ecosystems
Process for reviewing status of Risk Areas ........................................... 4 Current status ... revisions of conservation measures and priorities for future work. Glossary 4. A glossary of terms and ... fisheries in 4 Subareas 48.6 (2 notifications), 88.1 (104 notifications) and 88.2 (48 notifications ... estimation of associated frequencies and fishing footprints per unit effort Step 4 Characterisation of ...
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Phytoplankton distribution in the mixed layer: implication to krill abundance
/E)1/4. For a scale smaller than 21t'Tl the flow is dominated by the viscosity and is laminar. The ... . (~ I D(k) dk )0 ( 4 ) ( 5 ) ( 6 ) The dissipation rate can be set from the Ekman layer model ... sec-1 at 61°S. Since N can be an order of magnitude larger than 0.001 Figure 4 is prepared for N=0.01 ... for a is 0.2, hence Kz = 0.2eN-2. ( 1 4 ) Since the diffusion coefficient must have the same ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 331–356 : Auteur(s): Yamazaki, H. and T.R. Osborn
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Fishery Report: Champsocephalus gunnari South Georgia (Subarea 48.3)
........................................................................... 7 4. Stock assessment ... /97 - 1 300 0 1997/98 1 4 520 6 1998/99 1 4 840 265 1999/00 2 4 036 4 114 2000/01 5 6 760 960 ... 2001/02 5 5 557 2 667 2002/03 4 2 181 1 986 2003/04 7 2 887 2 683 2004/05 7 3 574 200 2005/06 5 2 ... 244 2 169 2006/07 5 4 337 4 345 2007/08 4 2 462 1 326 ANI 48.3 1.2 IUU catch 2. There has ...
Document : Site Section: Publications
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Fishery Report 2013: Dissostichus eleginoides South Georgia (Subarea 48.3)
.............................................................................. 3 Biological data .......................................................................... 4 ... Length-frequency distribution of catches ............................................. 4 Life-history ... parameters .................................................................... 4 Data collection ... .......................................................................... 4 Trawl surveys ........................................................................ 6 ...
Document : Site Section: Publications
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The sensitivity of multiple output statistics to input parameters in a krill–predator–fishery ecosystem dynamics model
values 7 7 SSMU Vectors 2 18 36 Predators – general Vectors 4 15 4 240 Predators – seasonal ... Vectors 10 15 4 2 1200 Krill – general Vectors 2 18 1 36 Krill – seasonal Vectors 4 18 1 2 144 Catch ... series1 Vectors 4 38 1 2 304 Foraging Matrices 1 18 4 2 144 Movement Matrices 1 18 1 2 36 Competition ... : a multiplier with range (0,1) of the ‘movement linear’ movement matrices (Tables 3 and 4 in Hill ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 97–118 : Auteur(s): Hill, S.L. and J. Matthews