Search results

1. Fecundity and size at sexual maturity of the bigeye grenadier (Macrourus holotrachys) at South Georgia (CCAMLR Subarea 48.3)

   to 260,000 eggs, a relatively high number for a macrourid. Mature ovaries were found to contain eggs ... final ovarian development is a prolonged process in M. holotrachys which probably lasts for a period of ... greater than a year. Sex ratios of specimens caught in the longline fishery are highly skewed with females ... outnumbering males by a ratio of 32:1 which may represent the true ratio of females to males within the ...

   Meeting Document : WG-FSA-02/26 : Author(s): T. Mulvey, S.A. Morley, M. Belchier and J. Dickson (United Kingdom)

2. Longline fishing at Tristan da Cunha: impact on seabirds

   important seabird populations. Two longline fisheries occur within Tristan’s Exclusive Economic Zone: a ... pelagic fishery for tunas and a demersal fishery for bluefish and alfoncino. Fishery observers have ... lines during the day, only one bird (a Great Sheawater Puffinus gravis) was killed (mortality rate 0.001 ... effort, probably has a much greater impact. Observations aboard one vessel in mid-winter suggest a ...

   Meeting Document : WG-FSA-00/13 : Author(s): N. Glass, I. Lavarello, J.P. Glass and P.G. Ryan (South Africa)

3. Vessel notification

   Abstract:  A feasibility study of a modified NAFO ‘Hail’ System which requires that CCAMLR Flag ... divisions of the Convention Area, was carried out to assess how such a system might strengthen the CCAMLR ... Inspection if it were to be combined with a reliable system of advance notification of fishing vessels ... compared with the performance of a satellite-based vessel monitoring system (Inmarsat-C/GPS), which is also ...

   Meeting Document : CCAMLR-XIV/13 : Author(s): Secretariat

4. Sensitivity analysis identifies high influence sites for estimates of penguin krill consumption on the Antarctic Peninsula

   Abstract:  Krill consumption by natural predators represents a critical link between surveys and ... models of standing krill biomass and the design of a sustainable krill fishery for the Scotia Sea ... . Antarctic krill (Euphausia superba) is a significant component of diet for penguins breeding in this region ... in krill predation estimates. We use a comprehensive database of Antarctic penguin abundances to ...

   Meeting Document : WG-EMM-12/P02 : Author(s): H.J. Lynch, N. Ratcliffe, J. Passmore, E. Foster and P. N. Trathan

5. Longline fishing at Tristan da Cunha: impacts on seabirds

   important seabird populations. Two longline fisheries occur within Tristan's Exclusive Economic Zone: a ... pelagic fishery for tunas and a demersal fishery for bluefish and alfoncino. Fishery observers have ... lines during the day, only one bird (a Great Sheawater Puffinus gravis) was killed (mortality rate 0.001 ... effort, probably has a much greater impact. Observations aboard one vessel in mid-winter suggest a ...

   Meeting Document : WG-FSA-01/15 : Author(s): N. Glass, I. Lavarello, J.P. Glass and P.G. Ryan (South Africa)

6. Population assessment of Patagonian toothfish in the north of Subarea 48.4 – 2010 update

   . eleginoides tag recaptures in 2009/10, a total of 72 in all seasons; The length-frequency of 2009/10 captures ... is consistent with the theory that the bulk of the biomass is dominated by a small number of cohorts ... . CASAL estimates a large recruitment event in early the early 1990s and faster growth rates than those ... 48.4 are very similar to that from the previous season with a B 0 of 1,123 t (compared to 1,127 t in ...

   Meeting Document : WG-FSA-10/39 : Author(s): J. Roberts and D. Agnew (UK)

7. Development of methods relevant to feedback management (FBM) for the krill fishery

   environment essential for the implementation of a Feed-Back Management (FBM) system. In terms of FBM, Marine ... krill density, distribution, availability and predator needs. A future developed FBM system, as ... during the fishing season as a measure of the available prey field. This information can be integrated ... summer 2018-2019. Author(s):  B.A. Krafft, A. Lowther, G. Macaulay, M. Chierici, M. Biuw, A. Renner, T.A ...

   Meeting Document : WG-EMM-18/08 : Author(s): B.A. Krafft, A. Lowther, G. Macaulay, M. Chierici, M. Biuw, A. Renner, T.A. Klevjer, R. Øyerhamn, C.A. Cárdenas, J. Arata, A. Makhado, C. Reiss and O.A. Bergstad

8. Report of the first SCAR Krill Action Group (SKAG) meeting (Cambridge, United Kingdom, 16 July 2018)

   establishment of a krill expert group to bring together those scientists working on krill and to have a linkage ... SKAG executive group and a representative from ICED to discuss and agree on a broad plan for its ... community, and provide a forum to guide research directions, promote collaboration, improve understanding of ... fishery management. The group highlighted a need to renew the efforts to assess the status of krill stocks ...

   Meeting Document : SC-CAMLR-XXXVII/23 : Author(s): B. Meyer

9. Abundance and trends in the breeding population of Adélie penguins (Pygoscelis adeliae) in the western Ross Sea

   summer, with just over a quarter (27.5%) at colonies on Ross and Beaufort Islands (southern Ross Sea meta ... -population).  The aggregated colonies of Cape Bird and Cape Crozier had a negative per capita growth rate of ... -1.8% for the years, 1981-2000 followed by a positive per capita growth rate of 5.5% for the years ... , 2001-2010.  In contrast, a single declining trend line best represented the number of breeding pairs at ...

   Meeting Document : WG-EMM-13/30 : Author(s): P. O’B. Lyver, M. Barron, K.J. Barton, S. Gordon (New Zealand), D. Ainley, A. Pollard (USA), P.R. Wilson and M.H. Pinkerton (New Zealand)

10. Testing for genetic differentiation between two size classes of the starry skate (Amblyraja georgiana)

    Abstract:  Two size classes of A. georgiana have been described in by-catch fishing data reported ... in the catch data from the Ross Sea fisheries. We extracted DNA from A. georgiana samples from both ... differentiated groups, which might have formed through a recent speciation event. We found no genetic differences ... among the samples of A. georgiana that were collected in the Ross Sea region, and the data did not ...

    Meeting Document : WG-FSA-12/53 : Author(s): P. Ritchie and A. Fleming (New Zealand)

Pages