Résultats de la recherche
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Comparison of two methods to assess fish losses due to depredation by killer whales and sperm whales on demersal longlines
interaction over access to resources, which often includes a combination of socio-economic, ecological and ... conservation issues. However, estimating the amount of resource depredated can be especially challenging when ... addition to providing a methodology that could be used in other areas with depredation issues, these ... human–wildlife interaction over access to resources, which often includes a combination of socio ... odontocetes. Gasco et al. 2 Introduction Depredation is a human–wildlife interaction over resources ... tested with a simple linear regression. Results From 1 September 2003 to 31 August 2013, 7 467 ... focused targeting by orcas, which may increase the interaction rate and consequently the higher ...
Science Journal Paper : CCAMLR Science, Volume 22 (CCAMLR Science, Volume 22) : 1–14 : Auteur(s): Gasco, N., P. Tixier, G. Duhamel and C. Guinet
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The Patagonian toothfish (Dissostichus eleginoides) fishery in the Kerguelen Islands (Indian Ocean sector of the Southern Ocean)
distribution, timing and area of spawning, and movements between geographical sectors) on the adult section of ... area of spawning, and movements between geographical sectors) on the adult section of the exploited ... operating in the fishery, having replaced the trawlers completely in 2001/02. Legal catches have been ... 5) only were studied for a period ranging from March to August, as this period is thought to cover ... Trawling (1979 to 2001) The first model described CPUE (kg/hour trawling) (Table 2): CPUE (kg/h) = α ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 1–25 : Auteur(s): Lord, C., G. Duhamel and P. Pruvost
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The ecosystem approach to managing fisheries: achieving conservation objectives for predators of fished species
CCAMLR Scier~ce, Vol . 8 (2001): 37-64 THE ECOSYSTEM ... -CAMLR, 1992,1995) and its potential effects on krill predators. This section provides a summary of ... predators. The last two points involve understanding the spatial and temporal scales of interaction in the ... to preying on other species in the system. To examine the potential for interaction between ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 37–64 : Auteur(s): Constable, A.J
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Effect of line sink rate on albatross mortality in the Patagonian toothfish longline fishery
magazine/hour. 50-100 kg anchors which sank the mother line quickly to target depths (thereby reducing ... dive recorders were made on the second magazine deployed in a set, a set usually involving eight ... 12 X 6.5 kg weights/magazine as described above. After four days fishing the CFL Pioneer caught in ... further behind the vessel) and weights were deployed every 70 m (i.e. 16 weights/magazine) on the ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 133–150 : Auteur(s): Robertson, G.G
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Using ecosystem monitoring data to detect impacts
average health or performance of individuals within indi- cator populations. Such parameters do not ... ; Constable, 2001). The CCAMLR Ecosystem Monitoring Program (CEMP) is intended to detect fisheries impacts ... the monitored predator (Reid and Croxall, 2001; Barlow et al., 2002; Reid et al., 2005). It has ... could be integrated into the manage- ment of krill fisheries (Constable, 2001, 2002), for example by ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 197–212 : Auteur(s): Hill, S.L., J. Forcada, P.N. Trathan and C.M. Waluda
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Significant conservation benefits obtained from the use of a new fishing gear in the Chilean Patagonian toothfish fishery
. 80 introduction The interaction between killer whales (Orcinus orca) and longline vessels is a ... Almagro Islands (15 594 pairs in 2001/02) (Lawton et al., 2003), the Evangelistas Islets (4 670 pairs in ... interaction, the predation rate of fish estimated by Hucke-Gaete et al. (2004) ranged between a maximum of 5 ... season for a vessel from the fleet for the last five years, from 2001 to 2005 using the Spanish longline ...
Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 79–91 : Auteur(s): Moreno, C.A., R. Castro, L.J. Mújica and P. Reyes
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Krill biomass in Area 48 and Area 58: recalculations of FIBEX data
) and other archived material (listed in Anon., 1986 - Appendix I) were used extensively for primary ... K. Yudanov and Dr W. Tesler (USSR) indicated that the methods described in archived material from ... archived it was impossible to recreate exactly the results reported in Anon. (1986). To avoid some of the ... single stratum value for (p A) was obtained by combining the individual survey section densities, having ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 157–181 : Auteur(s): Trathan, P.N., D.J. Agnew, D.G.M. Miller, J.L. Watkins, I. Everson, M.R. Thorley, E. Murphy, A.W.A. Murray and C. Goss
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Statistical problems in krill stock hydroacoustic assessments
: Two primary issues are at question for hydroacoustic assessments of krill. The first is the methods ... -series information cannot be obtained by any other means and, so long as data are collected and archived ... HYDROACOUSTIC ASSESSMENTS M.C. Macaulay Abstract Two primary issues are at question for hydroacoustic ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 301–309 : Auteur(s): Macaulay, M.C.
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Status of the Polish FIBEX acoustic data from the West Atlantic
dataset used by Trathan et al. (1992) was that archived at the BIOMASS Data Centre. This dataset was ... concern highlighted by the re-analysis related to the status of the archived Polish FIBEX acoustic data ... . Since the re-analysis by Trathan et al. (1992) a different archived source of the Polish FIBEX ... acoustic data has become available. This version of the dataset had been archived separately from that in ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 125–132 : Auteur(s): Trathan, P.N., J. Kalinowski and I. Everson
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Identifying taxonomic groups vulnerable to bottom longline fishing gear in the Ross Sea region
sponges (Brodeur, 2001; Heifetz, 2002; Husebø et al., 2002; Krieger and Wing, 2002; Buhl-Mortensen and ... , making them important factors in structuring community composition (Klitgaard, 1995; Beaulieu, 2001 ... ., 2001). Experiments conducted with shallow-water soft corals in McMurdo Sound indicated fast growth ... exploited fish species, such as Sebastes alutus (Brodeur, 2001). Hydrozoa: Hydroida and Stylasteridae ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 105–127 : Auteur(s): Parker, S.J. and D.A. Bowden