Результаты поиска

1. A compilation of parameters for ecosystem dynamics models of the Scotia Sea – Antarctic Peninsula region

   –Antarctic Peninsula region beyond the current operational catch limit requires the development and ... assessment of methods for subdividing the precautionary catch limit amongst smaller spatial units. This paper ... limit requires the development and assessment of methods for subdividing the precautionary catch limit ... current operational catch limit requires the development and assessment of meth- ods for subdividing the ... precautionary catch limit among smaller spatial units. CCAMLR’s Working Group on Ecosystem Monitoring and ... options for subdivision of the catch limit (Hewitt et al., 2004a). The evaluation of these options will ...

   Science Journal Paper : CCAMLR Science, Volume 14 (CCAMLR Science, Volume 14) : 1–25 : Автор(ы): Hill, S.L., K. Reid, S.E. Thorpe, J. Hinke and G.M. Watters

2. 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 ... subarea has also had its own catch limit, between 0.093 and 0.279 million tonnes year –1, since 2009 ... exploitation rate (annual catch divided by biomass) of <7%, which is below the 9.3% level considered ... appropriate to maintain the krill stock and support krill predators. Subarea catch limits exceed 9.3% of ... Subareas 48.1 to 48.4) for management and reporting purposes. The effective regional catch limit (or ... biomass estimated in 2000. Each subarea has also had its own catch limit, between 0.093 and 0.279 million ... identifies two catch limits: a higher limit, called the precau- tionary catch limit (5.61 million tonnes ... conditions are met. The precautionary catch limit specifies the catch that could be permitted when ‘the ...

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

3. A first attempt at an assessment of the Patagonian toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands EEZ

   its pre-exploitation level. Projections suggest that the annual catch limit should be reduced to a ... reviewed briefly. It is characterised by very large illegal catches and a sharply declining longline catch ... -exploitation level. Projections suggest that the annual catch limit should be reduced to a maximum of about ... catch limit and for surveillance are discussed. HISTORY OF THE FISHERY The Fishery In early 1996 ... a result of illegal catch levels. The catch limit for the 2000/01 season was 450 tonnes for each ... achieve given the level of catch limit reduction that appears necessary. ACKNOWLEDGEMENTS We wish to ...

   Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 11–32 : Автор(ы): Brandão, A., D.S. Butterworth, B.P. Watkins and D.G.M. Miller

4. Characteristics of krill aggregations in the South Sandwich Islands subarea in January–February 2000

   detecting potential fishing grounds where the recommended precautionary catch limit could be taken. Such ... million tonnes. It was shown that the removal of biomass up to a recommended precautionary limit could be ... possible from such grounds despite a predicted low catch per hour of trawling. File:  10kasatkina.pdf ... shing grounds where the recommended precautionary catch limit could be taken. Such fi shing grounds ... in order to detect potential fi shing grounds where the precautionary catch limit recommended by ... exceeds the CCAMLR precautionary catch limit of Kasatkina et al. 152 0.832 million tonnes (CCAMLR ... precautionary catch limit may be possible irrespective of the predicted low catch per hour of trawling. In ...

   Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 145–164 : Автор(ы): Kasatkina, S.M., A.P. Malyshko, V.N. Shnar and O.A. Berezhinsky

5. Antarctic krill and ecosystem management – from Seattle to Siena

   approach developed in order to calculate a precautionary catch limit for the krill fishery in various ... to calculate a precautionary catch limit for the krill fi shery in various CCAMLR statistical areas ... ‘limits’ on the uncontrolled expansion of krill fi shing. Firstly, the precautionary krill catch limit ... consider the possible allocation of the Area 48 pre- cautionary catch limit adopted in 1990 (1.5 million ... 1984 to advise its Scientifi c Committee (SC-CAMLR) on potential catch levels for harvested species ...

   Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 175–212 : Автор(ы): Miller, D.G.M

6. An assessment of the mackerel icefish (Champsocephalus gunnari) off Heard Island

   survey conducted at the end of the 1997 fishing season would allow for a catch limit on the Heard Plateau ... separately. Precautionary catch limits calculated using the Generalised Yield Model (GYM) are found to be 180 ... fishing season would allow for a catch limit on the Heard Plateau of 900 tonnes in the 1997/98 season and ... Group on Fish Stock Assessment (WG-FSA) recommended a precautionary catch limit for mackerel icefish ... presented here. An alternative catch limit is calculated using the results of the trawl survey carried ... out during August 1997. This allows for a higher catch limit due to the current high abundance of C ...

   Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 79–101 : Автор(ы): de la Mare, W.K., R. Williams and A.J. Constable

7. The biology, ecology and development of fishery management advice for the anomuran crabs at South Georgia (CCAMLR Subarea 48.3)

   analyses suggest that the current precautionary catch limit may not be sustainable in the long term if it ... analyses suggest that the current precautionary catch limit may not be sustainable in the long term if it ... male) standing stock derived by WG-FSA in 1992. The catch limit of the fishery was set at 1 600 ... tonnes for the 1992/93 season, but the catch limit would only be in force if more than three vessels ... fished (SC-CAMLR, 1992). In the 1993/94 season the catch limit was set at 1 600 tonnes irre- spective of ...

   Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 1–15 : Автор(ы): Belchier, M., T. Peatman and J. Brown

8. A potential feedback approach to ecosystem-based management: Model Predictive Control of the Antarctic krill fishery

   spatially resolved annual catch limits in response to estimates of the state of the system. It suggests that ... catch limits, which are currently used to manage Antarctic krill fisheries. The study demonstrates that ... characterising the trade-offs that they imply. This study characterises the trade-off between catch levels and ... a potential catch limit equivalent to 7% of current global fisheries landings (Hill, 2013a ... performance of a feed- back approach with a fixed catch limit approach such as that currently used to manage ... included in the three-part decision rule used to set the precautionary catch limit (Constable et al ... the Antarctic krill fishery with a fixed catch limit. With sufficient information about the system ...

   Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 119–137 : Автор(ы): Hill, S.L. and M. Cannon

9. Estimates of circumpolar abundance of Antarctic krill based on recent acoustic density measurements

   . Additionally, the current precautionary catch limits in the South Atlantic are set using a superseded acoustic ... value used in the past. The seasonal and local consequences of large catch limits will have to be taken ... catch limit (1.5 million tonnes per year) for Area 48, based on surveys in Subareas 48.1,48.2 and 48.3 ... million tonnes. The current precautionary catch limit of 1.5 million tonnes for Area 48 would result ... through the survey, then a precautionary catch limit of around 4.5 million tonnes for Subareas 48.1,48.2 ... and 48.3 is not impossible. A summed precautionary catch limit for the krill fishery throughout ...

   Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 87–99 : Автор(ы): Nicol, S., A.J. Constable and T. Pauly

10. Distribution and relative abundance of Antarctic toothfish (Dissostichus mawsoni) on the Ross Sea shelf

    potential predators, and thus where any ecosystem effects would be most likely to occur. The shelf catch has ... Ross Ice Shelf). The catch rates from the exploratory longline fishery typically show high temporal and ... and 2007 before dropping to 2 300 tonnes in 2008, partly as a result of the reduction in catch limit ... Catch (tonnes) Catch set–1 Catch hook–1 Catch limit (tonnes) 1997 1 2 <1 0.06 0.03 1 980 1998 1 82 ... a zero catch limit – but note that in 2006–2008 a catch of up to 10 tonnes was permissible in each ... fishing year, the catch limit for SSRU 881M was set to zero tonnes in recog- nition of the fact that the ...

    Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 33–51 : Автор(ы): Hanchet, S.M., S. Mormede and A. Dunn

Страницы