Résultats de la recherche
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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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The sensitivity of multiple output statistics to input parameters in a krill–predator–fishery ecosystem dynamics model
productivity, health, resilience and services. These objectives are also consistent with CCAMLR’s con ... , including one each for krill (productivity) and fishery performance (services) and two (health and ... abundance at beginning of fishing period. Krill Whole model Health (II.3(b) maintenance of the ... of krill, calculated within the model. (iii) Each taxon-specific health or resilience output ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 97–118 : Auteur(s): Hill, S.L. and J. Matthews
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Krill fishing in the Scotia Sea in relation to bathymetry, including the detailed distribution around South Georgia
interannual variability in the distribution of trawls. The data for 1993 were only available from August but ... results are discussed in relation to the ecology of krill and the fishery's interaction with local ... interannual variability in the distribution of trawls. The data for 1993 were only available from August but ... valleys. The results are discussed in relation to the ecology of krill and the fishery's interaction with ... available. From August 1994 all vessels licensed to operate in the South Georgia and South Sandwich ... recorded in the trawl dataset represent 71% of the catches recorded from August to October 1993 but only ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 1–17 : Auteur(s): Murphy, E.J., P.N. Trathan, I. Everson, G. Parkes and F.H.J. Daunt
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Possible effects of different levels of krill fishing on predators – some initial modelling attempts
krill predator species. A 'one-way' interaction model is developed, in which krill abundance ... 'two-way' interaction model (including also the effect of differing predator consumption ... lues for parameters SF and S? will be discussed in the following section. ONE-WAY INTERACTION ... ' interaction model is developed, in which krill abundance fluctuations impact on the predator population, but ... management recommendations. A mathematical framevvork for a 'two-way' interaction model (including also the ... the parameter y (see sub-section 'Deterministic Evaluations of the Effect of Fishing' for a ...
Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 79–97 : Auteur(s): Butterworth, D.S. and R.B. Thomson
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Assessment of krill flux factors in waters of South Orkney Islands during summer 1996
) was located in the zone of interaction between waters of the Antarctic Circumpolar Current (ACC) and ... factors in Subarea 48.2. The study area (S0 X 240 n miles) was located in the zone of interaction between ... overall pattern of krill flux over the Atlantic Antarctic Section (AAS) of the Southern Ocean (Area 48 ... . located in the zone of interaction between waters of the ACC and the Weddell Sea in the Secondary ... transport (S,,,) over a 40-n mile boundary section of the study area to mean water mass transport per ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 195–204 : Auteur(s): Kasatkina, S.M., V.N. Shnar, M.I. Polischuk, A.M. Abramov and V.A. Sushin
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A risk-management framework for avoiding significant adverse impacts of bottom fishing gear on Vulnerable Marine Ecosystems
presence and the consequences of interaction with different types of gear, a risk-management framework is ... of uncertainty surrounding both the evidence of VME presence and the consequences of interaction ... process of interaction of VMEs with bottom fishing activi- ties. For temporal scale, the reciprocal of ... extent on commercial vessels providing for direct visual observation of a small section of line ... or longlines, for which very little information exists (Eno et al., 2001; Johnson, 2002; Troffe et ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 177–193 : Auteur(s): Martin-Smith, K
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A statistical method for estimating the level of IUU fishing: application to CCAMLR Subarea 48.3
040–23 361, 140–9 023 respectively for birds. Despite continuing high levels of FPV coverage from 2001 ... catches for the years 2001/02, 2002/03 and 2003/04. File: 07agnew-kirkwood.pdf ... 2001 to 2004, no further IUU activity has been detected, leading to estimates of zero fi sh and bird ... catches for the years 2001/02, 2002/03 and 2003/04. Résumé Ce document décrit une nouvelle méthode ... respectivement pour les oiseaux. Malgré les niveaux de couverture élevés des navires de surveillance de 2001 à ... poisson et d’oiseaux pour les années 2001/02, 2002/03 et 2003/04. Резюме В данной статье описывается ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 119–141 : Auteur(s): Agnew, D.J. and G.P. Kirkwood
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Analysis of variability of krill size and fish by-catch in the Japanese krill fishery based on scientific observer data
, subareas and vessels. The potent interaction effect between year and subarea suggests large spatio–temporal ... hardly show difference among years, subareas and vessels. The potent interaction effect between year and ... interaction effect on the variation of krill length as follows: ij i j ijY µ α β γ= + + + (1) ( )~ N 0,10 ... ij represent the effect of year i, the effect of subarea j, and their interaction effect ... Biological model The biological model describes the year effect, the subarea effect, and their interaction ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 31–47 : Auteur(s): Okuda, T. and M. Kiyota
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Evidence to support the annual formation of growth zones in otoliths of Antarctic toothfish (Dissostichus mawsoni)
validating ageing methodologies is well understood (Campana, 2001). Also, while Horn’s (2002) growth ... length (TL) are seldom caught (Hanchet et al., 2001). Horn (2002) concluded that multiple banding was ... sh (Dissostichus eleginoides) (Cassia, 1998; Kalish and Timmiss, 2001; Horn, 2002). Because the ... -frequency data (with associated otoliths) exhibiting distinct juvenile modes (Jones et al., 2001), and a ...
Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 125–138 : Auteur(s): Horn, P.L., C.P. Sutton and A.L. DeVries
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CCAMLR ecosystem monitoring and a feedback management procedure for krill
kriU at the specified level cause the health of predator populations to decline below an acceptable ... of interaction between Antarctic krill and the environment. In: SAHRHAGE, D. (Ed.). Antarctic Ocean ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 345–350 : Auteur(s): Constable, A.J.