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1. 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 ... subarea has also had its own catch limit, between 0.093 and 0.279 million tonnes year –1, since 2009 ... to maintain the krill stock and support krill predators. Subarea catch limits exceed 9.3% of conservatively ... is precautionary at the regional scale. The subarea catch limits help prevent excessive concentration of catch ... to 48.4) for management and reporting purposes. The effective regional catch limit (or ‘trigger level ... in 2000. Each subarea has also had its own catch limit, between 0.093 and 0.279 million tonnes year ... format to introduce the current catch limits; to explain the basis for these catch limits and clarify ... allowed to catch) with biomass estimates; and to assess whether these catch limits are precautionary ...

   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

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

   potential fishing grounds where the recommended precautionary catch limit could be taken. Such fishing ... precautionary catch limit could be taken. Such fishing grounds could be located within the zones in which swarms ... to a recommended precautionary limit could be possible from such grounds despite a predicted low catch per hour ... tonnes. It was shown that the removal of biomass up to a recommended precautionary limit could ... catch limit could be taken. Such fi shing grounds could be located within the zones in which swarms ... aggregation forms in order to detect potential fi shing grounds where the precautionary catch limit ... exceeds the CCAMLR precautionary catch limit of Kasatkina et al. 152 0.832 million tonnes (CCAMLR ... with the precautionary catch limit may be possible irrespective of the predicted low catch per hour of trawling ...

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

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

   -exploitation level. Projections suggest that the annual catch limit should be reduced to a maximum of about 400 ... to, at most, a few percent only of its pre-exploitation level. Projections suggest that the annual catch limit ... ) is reviewed briefly. It is characterised by very large illegal catches and a sharply declining longline catch ... catches and a sharply declining longline catch-per-unit-effort (CPUE) trend. Application of a simple age ... . Projections suggest that the annual catch limit should be reduced to a maximum of about 400 tonnes ... levels of constant future catches. The im- plications of these results for the catch limit ... reduced as a result of illegal catch levels. The catch limit for the 2000/01 season was 450 tonnes ... given the level of catch limit reduction that appears necessary. ACKNOWLEDGEMENTS We wish to thank ...

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

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

   separately. Precautionary catch limits calculated using the Generalised Yield Model (GYM) are found to be 180 ... of a survey conducted at the end of the 1997 fishing season would allow for a catch limit on the Heard Plateau ... . Precautionary catch limits calculated using the Generalised Yield Model (GYM) are found to be 180 tonnes ... at the end of the 1997 fishing season would allow for a catch limit on the Heard Plateau of 900 tonnes ... different from those on Shell Bank for them to be managed separately. Precautionary catch limits calculated ... season would allow for a catch limit on the Heard Plateau of 900 tonnes in the 1997/98 season and 600 ... Group on Fish Stock Assessment (WG-FSA) recommended a precautionary catch limit for mackerel icefish ... catch limit is calculated using the results of the trawl survey carried out during August 1997 ...

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

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

   to calculate a precautionary catch limit for the krill fishery in various CCAMLR statistical areas. This paper ... to calculate a precautionary catch limit for the krill fishery in various CCAMLR statistical areas. This paper ... to calculate a precautionary catch limit for the krill fi shery in various CCAMLR statistical areas ... ’ on the uncontrolled expansion of krill fi shing. Firstly, the precautionary krill catch limit of 1.5 million tonnes ... the possible allocation of the Area 48 pre- cautionary catch limit adopted in 1990 (1.5 million tonnes ... -part decision rule (Table 14), is 0.116. Catch limits for Divisions 58.4.1 and 58.4.2 (e.g. as per ...

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

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

   that the current precautionary catch limit may not be sustainable in the long term if it were reached consistently ... histories. Recent analyses suggest that the current precautionary catch limit may not be sustainable ... that the current precautionary catch limit may not be sustainable in the long term if it were reached consistently ... various assumptions of recruitment. Estimates of appropri- ate short-term catch limits were made ... - son before the catch limits could be extrapolated to the South Georgia fishery as a whole. The impor ... insignificant ecosystem role and importance of the species (Basson and Hogarth, 1994). Catch limits In 1992 ...

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

7. Estimation of effective sample size for catch-at-age and catch-at-length data using simulated data from the Dirichlet-multinomial distribution

   Paper Title:  Estimation of effective sample size for catch-at-age and catch-at-length data using ... the distribution of catch-at-age or catch-at-length frequencies using a multinomial likelihood when there is extra ... -multinomial heterogeneity. Accurate estimation of ESS for catch-frequency data for each fishery and fishing ... Estimation of effective sample size for catch-at-age and catch-at-length data using simulated data ... ) and Stock Synthesis Program (Methot, 2000, 2005) also limit input of catch-at-length or catch-at-age ... Estimation of EffEctivE samplE sizE for catch-at-agE and catch-at-lEngth data using simulatEd data from ... is an approximate but simple way of modelling the distribution of catch-at-age or catch- at-length frequencies using ... a multinomial likelihood when there is extra-multinomial heterogeneity. Accurate estimation of ESS for catch ...

   Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 115–138 : Author(s): Candy, S.G

8. Some specific features of the USSR krill fishery and possibilities of applying fishery statistics to studies of krill biology and stocks

   , it is shown that the catch-per-haul variables are associated with the fishing regime of the vessel rather than ... of catches during scouting operations often results in yields which do not correspond to the actual biomass ... an impact. All these factors limit the extent to which CPUE can be used in simulation studies of krill ... engaged in regular krill fishery, it is shown that the catch-per-haul variables are associated ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 237–252 : Author(s): Dolzhenkov, V.N., T.G. Lubimova, R.R. Makarov, S.S. Parfenovich and V.A. Spiridonov

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

   . Information on the distribution of catches and catch limits among different bioregions could be used ... in the open area. Information on the distribution of catches and catch limits among different bioregions could ... Paper Title:  Spatial distribution of management measures, Antarctic krill catch and Southern ... between habitat (bioregion), existing spatial management and Antarctic krill catch in the Southern Ocean ... and catch limits among different bioregions could be used to prioritise protection for bioregions ... of catch limits across spatial management areas (iii) the distribution, across both spatial manage- ment ... units (SSMUs) devised for spatially subdividing the krill catch limit in the Scotia Sea and southern ... in CM 51-01, although CCAMLR has not yet set any SSMU-scale catch limits. The various types ...

   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

10. Analysis of variability of krill size and fish by-catch in the Japanese krill fishery based on scientific observer data

    Paper Title:  Analysis of variability of krill size and fish by-catch in the Japanese krill ... fishery process as observation error. In both krill length and by-catch fish number, the parameters ... . For both krill length and by-catch fish number, vessel sample size shows marked effects on the coefficient ... Analysis of variability of krill size and fish by-catch in the Japanese krill fishery based ... BY-CATCH IN THE JAPANESE KRILL FISHERY BASED ON SCIENTIFIC OBSERVER DATA T. Okuda and M. Kiyota ... from fishery process as observation error. In both krill length and by-catch fish number ... the Bayesian model. For both krill length and by-catch fish number, vessel sample size shows marked effects ... for the observer because scientific observers are requested to collect various types of data within a limited ...

    Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 31–47 : Author(s): Okuda, T. and M. Kiyota

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