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

   model (GYM) was used by CCAMLR to establish the precautionary catch limit for the Antarctic krill ... (Euphausia superba) fishery. The current precautionary catch limit was based on supplying the GYM ... at the trigger level (lowest catches), at approximately half the precautionary catch limit (intermediate ... ), or at the precautionary catch limit (highest) were conducted. As the values for natural mortality, recruitment variability ... of the precautionary catch limit of 5.61 million tonnes into smaller management units has been established (CCAMLR ... , 2012: CM 51-01). This precautionary catch limit was calculated using the generalised yield model (GYM ... increases in catch. The total precautionary catch limit of 8.6 million tonnes for all areas regulated ... to establish the precautionary catch limit for the Antarctic krill (Euphausia superba) fishery. The current ...

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

2. INDICATIVE ESTIMATES OF BIOMASS AND YIELD OF WHITSON’S GRENADIER (M. WHITSONI) ON THE CONTINENTAL SLOPE OF THE ROSS SEA IN SUBAREAS 88.1 AND 88.2

   Abstract:  Catch limits currently in place for macrourids in Subareas 88.1 and 88.2 are defined ... as being equal to 16% of the catch limit of Dissostichusspp. in these subareas. The 16% was based ... on the ratio of the by-catch limit for macrourids to the catch limit for Dissostichus spp. in Division 58.5.2 ... Catch limits currently in place for macrourids in Subareas 88.1 and 88.2 are defined as being equal ...

   Meeting Document : WG-FSA-08/32 : Author(s): S.M. Hanchet, D. Fu and A. Dunn (New Zealand)

3. Estimates of local biomass with uncertainty for Antarctic (Dissostichus mawsoni) and Patagonian (D. eleginoides) toothfish in research blocks in Subareas 48.6 and 58.4

   of WG-SAM. The trend analysis decision rules developed by WG-FSA 17 were applied to provide catch limits ... . However, as the trend in all three of these research blocks was declining the revised catch limit ... is determined as 0.8 times the existing catch limit. The revised catch limits for all but one of the research ... blocks was determined by the requirement that the absolute change in the existing catch limit should ...

   Meeting Document : WG-FSA-18/12 : Author(s): CCAMLR Secretariat

4. Assessment and tag program adaption methods for exploratory fisheries in the CAMLR Convention Area: an example application for Division 58.4.3a

   for the initial stock assessment and adaption of catch limits and tagging rates is presented for new ... abundance estimator, is defined whereby catch limits and tagging rates can be adjusted together to define ... plan for exploratory fisheries. The accuracy of the catch limit and tag-rate adaption algorithm ... eleginoides) in Division 58.4.3a with catch limit and tag-rate recommendations being made given the assessment ... assessment and adaption of catch limits and tagging rates is presented for new and exploratory stocks ... whereby catch limits and tagging rates can be adjusted together to define tagging levels ... for exploratory fisheries. The accuracy of the catch limit and tag-rate adaption algorithm is tested using ... 58.4.3a with catch limit and tag-rate recommendations being made given the assessment results and using ...

   Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 101–113 : Author(s): Hillary, R.M

5. Distribution, demography and discard mortality of crabs caught as by-catch in an experimental pot fishery for toothfish in the South Atlantic

   but reached much higher catch levels (and, presumably, densities) between 800 and 1400m. Differences were also ... to significantly influence crab catch rates. Very few crabs (3% of P. spinosissima and 7% of P. formosa) were males ... above the legal size limit and could therefore be retained. All other crabs were discarded. Most crabs ... , demography and discard mortality of crabs caught as by-catch in an experimental pot fishery for toothfish ...

   Meeting Document : WG-FSA-01/32 : Author(s): M.G. Purves (South Africa), D.J. Agnew, G. Moreno, C. Yau and G. Pilling (United Kingdom)

6. Scientific requirements for an orderly development of the krill fishery

   precautionary catch limit for krill in Statistical Division 58.4.2 of 1.49 million tonnes (up from 450 000 ... supported the large increase in the precautionary catch limit, such a large increase required the inclusion ... stock surveys in areas with no precautionary catch limits in order to establish a catch limit before ... ) Establish a threshold capacity for the fishery relative to the catch limits (small or large scale spatial ...

   Meeting Document : WG-EMM-07/23 : Author(s): A. Constable, G. Slocum and S. Nicol (Australia)

7. Summary of the toothfish fishery and tagging program in the Amundsen Sea region (SSRUs 882C–H) to 2018/19

   that catch limits in the ASR be calculated following the trend analysis rules developed by WG-FSA ... for research blocks (CAMLR-XXXVI 2017, Annex 7 paragraph 4.33). The estimated catch limits, based on the one ... -year Chapman estimates and allowing a maximum of 20% in the catch limit for 88.2H and research block ... 882_2 are: 882H: 240 t catch and allowing a maximum of 20% change in the catch limit from 200 ...

   Meeting Document : WG-FSA-2019/12 : Author(s): J. Devine and S. Parker

8. Research plan for the exploratory fisheries for Dissostichus spp. in Subarea 48.6 in 2014/15

   to estimate appropriate catch limit, we propose to continue the current research operation for at least ... , respectively) associated with the small catch limit. Regarding relatively high CPUE in the area, we propose ... to increase the catch limit from current 50 tonnes to 100 tonnes under the exploitation rate of 3 % in order ... close to the original research block. In such a case, the catch will be counted against the catch limit ...

   Meeting Document : WG-SAM-14/01 : Author(s): Delegation of Japan

9. Revised research plan for the exploratory longline fishery for Dissostichus spp. in 2014/15 in Division 58.4.3a

   the coming years in order to achieve a robust stock assessment that would provide advice on a catch limit ... effort, it is suggested to define a new survey design and to maintain the total catch limit of 32 tons ... assessment next year. It is suggested also to define a catch limit with an appropriate local exploitation ... in order to achieve a robust stock assessment that would provide advice on a catch limit according ...

   Meeting Document : WG-FSA-14/05 : Author(s): Delegation of France

10. Research plan for exploratory fishing for toothfish (Dissostichus spp.) in 2016/17 in Division 58.4.2 by France

    and the precautionary catch limit for the exploratory fishery for Dissostichus spp. was 35 tonnes in SSRU E. Only ... a robust stock assessment and define catch limits according to CCAMLR decision rules. This paper presents ... sufficient data to provide an advice on a catch limit according to CCAMLR decision rules. The biomass ... using the CCAMLR decision rules, the catch limit should remain unchanged at 35 tonnes for 2016/17 ...

    Meeting Document : WG-SAM-16/02 : Author(s): Delegation of France

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