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1. 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 : Autor(es): Miller, D.G.M

2. 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 : Autor(es): de la Mare, W.K., R. Williams and A.J. Constable

3. 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 : Autor(es): Belchier, M., T. Peatman and J. Brown

4. 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 : Autor(es): Hill, S.L. and M. Cannon

5. 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 : Autor(es): Nicol, S., A.J. Constable and T. Pauly

6. 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 : Autor(es): Hanchet, S.M., S. Mormede and A. Dunn

7. Status of the coastal stocks of Dissostichus spp. in East Antarctica (Divisions 58.4.1 and 58.4.2)

   very low productivity. Estimates of average biomass were made by comparison of standardised catch rates ... allowable catch (1 380 tonnes).   File:  03agnew-et-al.pdf ... has never managed to take more than 48% of the catch limit in Division 58.4.2. In the east (Division ... 58.4.1) fishing has been more predictable, and the catch limit has been reached in most years. This ... areas). In addition, a catch limit assuming a long-term sustainable exploitation rate of 5% of ... A C E C E G Catch limit (tonnes) 260 260 260 200 200 200 TOA catches (tonnes) 2005 62 15 ...

   Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 71–100 : Autor(es): Agnew, D.J., C. Edwards, R. Hillary, R. Mitchell and L.J. López Abellán

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

   provide advice to CCAMLR on the spatial allocation of the Antarctic krill catch limit for the Scotia Sea ... - cautionary catch limit. The former represents CCAMLR’s operational krill catch limit, or trigger level ... , which is 11% of the cur- rent precautionary catch limit (Conservation Measure 51-01: CCAMLR, 2011 ... allowable catch at the precautionary catch limit. Responses >0.1 occurred in penguin health and ...

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

9. The choice of procedure for deciding when to close fisheries regulated by CCAMLR: a simulation model

   implement because of the variation in catch rates shown by the fisheries. Non-fluctuating random and ... fluctuating random catch histories are simulated and the performance of four models for making closure ... successful model determines the trend of catch rates using linear regression over the latest four reporting ... incorporate a mechanism for adjustment of the limit for a decision, L, in relation to the catch rate. All ... (currently defmed in Conservation Measure 25/IX) with Catch Type 1. The effect of L, the catch limit ... the Secretariat of CCAMLR, have been difficult to implement because of the variation in catch rates ... shown by the fisheries. Non-fluctuating random and fluctuating random catch histories are simulated and ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 81–97 : Autor(es): Agnew, D.J.

10. Fishing intensity of the Soviet fleet in krill fisheries in the southern Atlantic (Subareas 48.2 and 48.3)

    % of the total catch. The calculations were based on haul-by-haul data from the Soviet fleet, using a ... indicate the estimated pre-exploitation biomass. The precautionary krill catch limit in Area 48 was ... 20-year fi shing history, the precautionary catch limit had never been approached. Furthermore, the ... the consequences of setting the annual krill catch limit to a fi xed fraction of the estimate of ... to more than 95% of the total catch. The calculations were based on haul-by-haul data from the ...

    Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 15–35 : Autor(es): Kasatkina, S.M. and V.F. Ivanova

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