Résultats de la recherche

1. Is current management of the Antarctic krill fishery in the Atlantic sector of the Southern Ocean precautionary?

   management and reporting purposes. The effective regional catch limit (or ‘trigger level’), established in ... recent years. This suggests that fishing at the trigger level would be equivalent to a long-term ... ;50% of the trigger level since 1991. Comparison with the 9.3% reference exploitation rate suggests ... rates that would reduce the biomass to BMSY. The trig- ger level is equivalent to ~1% of the estimated ... , based on conservative esti- mates of subarea biomass, suggests that the trig- ger level together with ... conservative estimate). The trig- ger level effectively limits the overall exploita- tion rate for Subareas ... ‘trigger level’), established in 1991, is 0.62 million tonnes year–1, equivalent to ~1% of the regional ...

   Science Journal Paper : CCAMLR Science, Volume 23 (CCAMLR Science, Volume 23) : 31–51 : Auteur(s): Hill, S.L., A. Atkinson, C. Darby, S. Fielding, B.A. Krafft, O.R. Godø, G. Skaret, P.N. Trathan and J.L. Watkins

2. Effects of recruitment variability and natural mortality on generalised yield model projections and the CCAMLR decision rules for Antarctic krill

   fishing at the trigger level (lowest catches), at approximately half the precautionary catch limit ... in krill harvests in Area 48 beyond the trigger level require verification that the krill recruitment ... limit is based on a gamma of approximately 0.093 (CCAMLR, 2012: CM 51-01). In practice, the trig- ger ... precautionary catch limit both the decision rules, especially for depletion, were trig- gered (Figure 7). The ... 48.1, 48.2, 48.3 and 48.4) is limited by a trigger level of 620 000 tonnes until a procedure for ... fishing, or with fishing at the trigger level (lowest catches), at approximately half the precautionary ...

   Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 81–96 : Auteur(s): Kinzey, D., G. Watters and C.S. Reiss

3. Spatial distribution of management measures, Antarctic krill catch and Southern Ocean bioregions: implications for conservation planning

   fishing season, the trigger level in Subareas 48.1 to 48.4 (the effective catch limit for krill until ... Toothfish Icefish Crabs 48.1 Whole subarea 5 610 000a (Trigger level = 620 000) X X X 48.2 SO Southern ... Shelf MPA X X X X Rest of subarea 5 610 000a (Trigger level = 620 000) 48.3 A 5 610 000a (Trigger ... level = 620 000) 0 2 305 1 600 B 900 C 2 100 Rest of subarea 0 48.4 N 5 610 000a (Trigger level ...

   Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 1–19 : Auteur(s): Grant, S.M., S.L. Hill and P.T. Fretwell

4. Telemetry monitoring of ecological resources

   be made as to what level to trigger the transmitter pulse. If the threshold is too high, heart ... beats will be missed, if too low, muscle artefacts will cause false indications. Trigger levels of ... 0.2 millivolts to 0.7 millivolts are used. We use a trigger level of 0.6 millivolts and try to place ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 495-511 : Auteur(s): Kuechle, V.B.

5. A risk-management framework for avoiding significant adverse impacts of bottom fishing gear on Vulnerable Marine Ecosystems

   event to Secretariat Compare trigger lowerhigher 181 Risk-management framework for avoiding adverse ... Assessment of bottom fishing activities Trigger levels and actions, mitigation measures 4. Evaluate risks ... and trigger levels established. If these trigger levels are reached, then a move-on provision would ...

   Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 177–193 : Auteur(s): Martin-Smith, K

6. Assessments of by-catch in trawl fisheries at Heard and McDonald Islands

   species is low, and hence the amount of by-catch necessary to trigger the 5% rule is also very low. Most ... . Activity Trigger Species Prospecting C. rhirzocevatus L. squamifrons N . rossii Skates All above ...

   Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 231–243 : Auteur(s): Constable, A.J., R. Williams and W.K. de la Mare

7. Geographical differences in the condition, reproductive development, sex ratio and length distribution of Antarctic toothfish (Dissostichus mawsoni) from the Ross Sea, Antarctica (CCAMLR Subarea 88.1)

   would be consistent with an extended spawn. A possible trigger for the onset of spawning may be ... trigger in many fish species including cod, haddock and various sal- monids (McCormick and Naiman, 1984 ...

   Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 27–45 : Auteur(s): Fenaughty, J.M

8. Commercial fishing vessels as research vessels in the Antarctic – requirements and solutions exemplified with a new vessel

   Ocean of about 200 000 tonnes is small compared to the CCAMLR trigger level of 620 000 tonnes and the ...

   Science Journal Paper : CCAMLR Science, Volume 21 (CCAMLR Science, Volume 21) : 11–17 : Auteur(s): Godø, O.R., C. Reiss, V. Siegel, J.L. Watkins

9. The sensitivity of multiple output statistics to input parameters in a krill–predator–fishery ecosystem dynamics model

   - cautionary catch limit. The former represents CCAMLR’s operational krill catch limit, or trigger level ...

   Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 97–118 : Auteur(s): Hill, S.L. and J. Matthews

10. The use of patent databases to predict trends in the krill fishery

    would exceed the trigger level of 620 000 tonnes, set by the Commission for Area 48. Since formal ...

    Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 135–144 : Auteur(s): Foster, J., S. Nicol and S. Kawaguchi

Pages