Результаты поиска

1. Estimating the impact of depredation by killer whales and sperm whales on longline fishing for toothfish (Dissostichus eleginoides) around South Georgia

   , depressing CPUE by up to 20%. Sperm whales have been more frequently encountered in recent years, occurring ... , with killer whales present on 3.8% and sperm whales on 17.7% of lines. Killer whales appear in pod ... line of a large number of toothfish, usually depressing CPUE by about 50%. Sperm whales occur in ... in larger pod sizes, whereas killer whale encounters and pod sizes have remained relatively constant ...

   Meeting Document : WG-FSA-10/P06 : Автор(ы): J. Moir Clark and D.J. Agnew

2. Contribution to the early life history of Channichthyidae from the Bransfield Strait and South Georgia

   them that C. gunnari from the South Georgia region grow faster in the first two years of life than ... examined. Their postlarvae and juveniles were found numerously in krill catches in the Scotia Sea area ... patterns of microincrements, discernible in these otoliths under a light microscope, in most cases are ... , approximating in diameter otoliths of C. gunnari postlarvae. Ageing of single juveniles of Chaenodraco ...

   Meeting Document : CCAMLR/86/FA/08 : Автор(ы): W. Ślósarczyk (Poland)

3. Demography and population trends of the Atlantic yellow-nosed albatross

   two study colonies on Gough Island and Tristan da Cunha for 20 years. Annual variation in the number ... Tristan da Cunha archipelago and Gough Island in the central South Atlantic Ocean, and is threatened by ... mortality from longline fisheries operating in the South Atlantic. Demographic data have been collected from ... in the South Atlantic Ocean. Population modeling predicts annual rates of decrease of 1.5–2.8% on ...

   Meeting Document : WG-FSA-03/37 : Автор(ы): R. Cuthbert (United Kingdom), P.G. Ryan, J. Cooper (South Africa) and G. Hilton (United Kingdom)

4. Marine debris and entanglements at Bird Island and King Edward Point, South Georgia, Signy Island, South Orkneys and Goudier Island, Antarctic Peninsula 2012/13

   lowest recorded in 23 years of summer surveys at Signy Island, possibly due to sea-ice coverage at the ... (operational during summer only; 25 November 2012 to 20 March 2013) recorded a total of 13 items of beached ... Point and zero at Signy Island and Goudier Island. In total, 85 items of marine debris were found in ... association with seabird colonies at Bird Island, most commonly in association with wandering albatrosses (45 ...

   Meeting Document : SC-CAMLR-XXXII/BG/05 : Автор(ы): Delegation of the United Kingdom

5. Exploratory analysis of acoustic data from the Ross Sea

   . Two types of pelagic layers were present in most acoustic recordings: a dense shallow layer between 30 ... conducting acoustic surveys for toothfish and rattails in the Ross Sea. Acoustic data were collected using a ... could be compared with longline catches. Each ‘line’ recording was between 20 and 50 min long ... January 2003, and the occurrence of a double bottom echo caused by too high a ping rate from 23–30 January ...

   Meeting Document : WG-FSA-SAM 03/9 : Автор(ы): R.L. O’Driscoll and G.J. Macaulay (New Zealand)

6. Towards developing a feedback management procedure for the Antarctic krill fishery

   spatial distribution of fishing activity for Antarctic krill in Statistical Area 48. The CEMP currently ... fishery and are sensitive to changes in the marine ecosystem (e.g. series that indicate predator abundance ... CEMP sites (e.g. relationships between animal condition and subsequent survival). If a feedback ... strategy for the krill fishery includes comparison of predator performance in no-fishing areas, these ...

   Meeting Document : WG-EMM-12/44 : Автор(ы): G. Watters and J. Hinke (USA)

7. Evaluation of the effects of illegal, unregulated and unreported (IUU) fishing on the legal catch of fisheries for Dissostichus eleginoides

   result in a closure of the legal fisheries in the Indian Ocean within the next 12 years because it is in ... is low because the effects of IUU fishing are averaged out in the assessment process over 35 years ... illegal, unregulated and unreported (IUU) fishing for toothfish in the CCAMLR area threatens the success ... catch and the legal catch were combined in the catch history and a new long-term sustainable annual ...

   Meeting Document : WG-FSA-02/69 : Автор(ы): A.J. Constable (Australia)

8. An approach to feedback management (FBM) of the krill fishery based on routine acoustic data collection and intermittent land-based predator studies

   level in the fishery of Antarctic krill in Subareas 48.1 through 48.4 (CM 51-07) has continuously been ... strictly not in line with the CCAMLR ecosystem approach to management. FBM has been considered an ... , understandable and robust relationships which in turn creates trust by the stakeholders and will enable an ... the proposed framework provides a clear way forward it will take several years to implement fully due ...

   Meeting Document : SC-CAMLR-XXXVI/BG/20 : Автор(ы): Delegations of Norway, China and Chile

9. New CCAMLR SISO Observer Manuals and updated longline logbook

   data collection for a focussed skate tagging programme in the Ross Sea, beginning in the 2020 season ... requirements. In addition a new version of the observer longline logbook is presented, with additions to allow ...

   Meeting Document : WG-EMM-2019/75 : Автор(ы): CCAMLR Secretariat

10. An update of the ageing program for Patagonian toothfish (Dissostichus eleginoides) at the Australian Antarctic Division, including a summary of new data available for the Integrated Stock Assessment for the Heard Island and the McDonald Islands fishery (Division 58.5.2)

    greater than 20 years) available for use in the current assessment (Ziegler et al., 2014).   Author(s ... in relation to the laboratory processing of otoliths and quality control in the assignment of fish ... capacity for ageing and at a lower cost per otolith. Greatest efficiency gains have been made in the ... laboratory, with otoliths now set in smaller resin blocks that take much less time to section, and in quality ...

    Meeting Document : WG-FSA-14/45 : Автор(ы): B.M. Farmer, E.J. Woodcock and D.C. Welsford (Australia)

Страницы