Search results
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Is current management of the Antarctic krill fishery in the Atlantic sector of the Southern Ocean precautionary?
) for management and reporting purposes. The effective regional catch limit (or ‘trigger level’), established ... years. This suggests that fishing at the trigger level would be equivalent to a long-term exploitation ... exploitation rate in each subarea has remained <3% because annual catches have been <50% of the trigger ... catch limit (or ‘trigger level’), established in 1991, is 0.62 million tonnes year&ndash ... to 48.4) for management and reporting purposes. The effective regional catch limit (or ‘trigger level ... of the regional biomass in recent years. This suggests that fishing at the trigger level would be equivalent ... catches have been <50% of the trigger level since 1991. Comparison with the 9.3% reference exploitation ... catch limit (5.61 million tonnes, established in 2010), and a lower limit, called the trigger level ...
Science Journal Paper : CCAMLR Science, Volume 23 (CCAMLR Science, Volume 23) : 31–51 : Author(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
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Effects of recruitment variability and natural mortality on generalised yield model projections and the CCAMLR decision rules for Antarctic krill
at the trigger level (lowest catches), at approximately half the precautionary catch limit (intermediate ... the trigger level require verification that the krill recruitment variability, natural mortality, and other ... no fishing, or with fishing at the trigger level (lowest catches), at approximately half the precautionary ... future increases in krill harvests in Area 48 beyond the trigger level require verification ... , 48.2, 48.3 and 48.4) is limited by a trigger level of 620 000 tonnes until a procedure for division ... . Simulations with either no fishing, or with fishing at the trigger level (lowest catches), at approximately ... . Any substantial future increases in krill harvests in Area 48 beyond the trigger level require ... ., 2011). The trigger level of 620 000 tonnes has been fixed at its present level since 1991 ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 81–96 : Author(s): Kinzey, D., G. Watters and C.S. Reiss
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Spatial distribution of management measures, Antarctic krill catch and Southern Ocean bioregions: implications for conservation planning
, the trigger level in Subareas 48.1 to 48.4 (the effective catch limit for krill until spatial subdivision ... (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 = 620 000) 40 X X S 30 X X Rest of subarea 0 X X 48.5 ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 1–19 : Author(s): Grant, S.M., S.L. Hill and P.T. Fretwell
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Telemetry monitoring of ecological resources
besides temperature - a determination must be made as to what level to trigger the transmitter pulse ... indications. Trigger levels of 0.2 millivolts to 0.7 millivolts are used. We use a trigger level of 0.6 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 495-511 : Author(s): Kuechle, V.B.
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A risk-management framework for avoiding significant adverse impacts of bottom fishing gear on Vulnerable Marine Ecosystems
and other specified data Designated Actions in FOP Report event to Secretariat Compare trigger ... Assessment of bottom fishing activities Trigger levels and actions, mitigation measures 4. Evaluate risks ... -indicator organisms in the catch of bottom fishing gear would be monitored and trigger levels established ... . If these trigger levels are reached, then a move-on provision would operate, as with current by-catch measures ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 177–193 : Author(s): Martin-Smith, K
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Assessments of by-catch in trawl fisheries at Heard and McDonald Islands
species comprised more than 5% of the catch, causing a triggering of the 5% rule in Conservation ... difficult. In the C. gunnari fishery, C. rhinoceratus and skates triggered a number of instances ... into a number of classes to illustrate the type of voyage in which the rule is triggered, the triggering ... to trigger the 5% rule is also very low. Most instances were caused by less than 100 kg of by-catch ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 231–243 : Author(s): Constable, A.J., R. Williams and W.K. de la Mare
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Commercial fishing vessels as research vessels in the Antarctic – requirements and solutions exemplified with a new vessel
in the Atlantic sector of the Southern Ocean of about 200 000 tonnes is small compared to the CCAMLR trigger ...
Science Journal Paper : CCAMLR Science, Volume 21 (CCAMLR Science, Volume 21) : 11–17 : Author(s): Godø, O.R., C. Reiss, V. Siegel, J.L. Watkins
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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)
be consistent with an extended spawn. A possible trigger for the onset of spawning may be firstly the end ... as a possible spawning switch. Photoperiod is well documented as a spawning trigger in many fish species ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 27–45 : Author(s): Fenaughty, J.M
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The sensitivity of multiple output statistics to input parameters in a krill–predator–fishery ecosystem dynamics model
operational krill catch limit, or trigger level, which is 11% of the cur- rent precautionary catch limit ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 97–118 : Author(s): Hill, S.L. and J. Matthews
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The use of patent databases to predict trends in the krill fishery
the trigger level of 620 000 tonnes, set by the Commission for Area 48. Since formal notifications began ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 135–144 : Author(s): Foster, J., S. Nicol and S. Kawaguchi