Результаты поиска

1. A preliminary assessment for mackerel icefish (Champsocephalus gunnari) in Division 58.5.2, based on results from the 2019 random stratified trawl survey

   Abstract:  The annual random stratified trawl survey was undertaken in Division 58.5.2 in the ... , abundance and yield in Division 58.5.2 to the west of 79 o 20’ E using standard CCAMLR methods (CMIX and ... Generalized Yield Model). The 2019 survey showed a large 2+ and 3+ cohort in the population. Catches of 527 t ... in the 2019/20 season and 406 t in the 2020/21 season, respectively, satisfied the CCAMLR decision ...

   Meeting Document : WG-FSA-2019/02 : Автор(ы): D. Maschette, G. Nowara and D. Welsford

2. The Continuous Plankton Recorder in the Southern Ocean: a comparative analysis of zooplankton communities sampled by the CPR and vertical net hauls along 140°E

   . Zooplankton in the top 150 m of the water column demonstrated strong, small-scale, vertical distribution ... variation in abundance between NORPAC depth zones (average = 82 ± 47 individuals m–3), while abundance was ... substantially higher in the CPR samples (average = 144 ± 103 individuals m–3), despite it under-sampling fast ... NORPAC samples showed that these three taxa were most abundant in the surface waters. The significant ...

   Meeting Document : WS-BSO-07/P5 : Автор(ы): Hunt, B.P.V and G. Hosie

3. Review of CCAMLR activities on monitoring marine debris in the Convention Area

   on marine mammals and seabirds in the Convention Area has been reviewed. The CCAMLR Marine Debris ... debris, principally packaging items, fishing gear, and wood items, reached a peak in the period 1994-1996 ... at Bird Island and Signy Island, but have declined. The number of debris items found had increased in ... packaging materials and wood. The level of marine debris found in grey-headed albatross, black-browed ...

   Meeting Document : SC-CAMLR-XXV/BG/09 : Автор(ы): Secretariat

4. Interactions between seabirds and deep water hake trawl gear: an assessment of impacts in South African waters 2004/05

   Abstract:  This study estimates the mortality of seabirds in the South African deep water hake ... . Mortalities were greater in winter, when more birds attended fishing vessels, and most occurred during dumping ... average mortality rates were 0.56 (0.32-0.82) birds killed per hour during dumping in winter, 0.21 (0.07 ... -0.38) during dumping in summer, 0.09 (0.02- 0.19) when not dumping in winter, and 0.00 (–) when not ...

   Meeting Document : WG-FSA-06/41 : Автор(ы): B.P. Watkins, S.L. Petersen and P.G. Ryan (South Africa)

5. Detecting trends in the krill fishery

   stocks is of limited value in plotting trends in the fishery at its current level. Predictions by Members ... found that they are generally less accurate than will be necessary to detect trends in the future ... . Economic information on the krill fishery has been difficult to access in the past but will be necessary to ... generally available in the Scientific Committee. Technological information may provide early warnings of ...

   Meeting Document : WG-EMM-02/25 : Автор(ы): S. Nicol and J. Foster (Australia)

6. Entanglement of Antarctic fur seals Arctocephalus gazella in man-made debris at Bird Island, South Georgia during the 2000 winter and the 2000/01 breeding season

   entanglements over the 2000 winter than in 1999; some of which can be explained by interannual variation in the ... injuries accounted for 35% of entanglements over winter and 23% during the summer. As in previous years ... , most individuals observed entangled in debris were juveniles (80% of winter and 68% of summer ... entangled males in the winter compared to summer reflects the sex ratio of Antarctic fur seals ashore over ...

   Meeting Document : SC-CAMLR-XX/BG/03 : Автор(ы): Delegation of the United Kingdom

7. Entanglement of Antarctic fur seals Arctocephalus gazella in man made debris at Bird Island, South Georgia during the 1999 winter and the 1999/2000 pup rearing season

   and a 94% decrease on the highest previous total (1992). Four of these animals wereentangled in ... plastic packaging bands, double that observed in the 1998 winter, and a return to thehigh levels observed ... on the 1998 winter. The number of seals observed entangled in the summer was the second lowest ... recorded to date,being 42% lower than in the 1998/99 season. The proportion of adult animals affected was ...

   Meeting Document : SC-CAMLR-XIX/BG/02 : Автор(ы): Delegation of the United Kingdom

8. Summer distribution, abundance and structure of krill populations (Euphausia superba and Euphausia crystallorophias) sampled by plankton net in the western Ross Sea (January–February 2000)

   of krill in the western Ross Sea (Antarctica). A midwater sampler-trawl (Hamburg Plankton Net) was ... double oblique tow. Mean relative biomass of Antarctic krill Euphausia superba, in the area north of ... 1000m3. The high abundance of Euphausia superba (1510 g/1000m3) found in a single haul on the Mawson Bank ... Area (73°S 173°E) was remarkable. Ice krill Euphausia crystallorophias replaced the Antarctic krill in ...

   Meeting Document : WG-EMM-00/38 : Автор(ы): M. Azzali, A. Sala and G. Brancato (Italy)

9. Seabird mortality in the Japanese tuna longline fishery around Australia, 1988–1995

   ) by Japanese longline vessels targeting tuna. In recent years the estimated rate of seabird bycatch in ... the AFZ has been in the order of 0.15 birds 1000 hooks, translating to mortalities of 1000-3500 birds ... fishing effort occurs in winter; (b) when longlines are set during the day; (c) in the waters around ... southern Australia. Uncertainties in the observed catch rates prevent confident assessment of trends, but ...

   Meeting Document : WG-FSA-98/31 : Автор(ы): N. Brothers, R. Gales and T. Reid (Australia)

10. Revised proposal for a CCAMLR sponsored research survey to monitor abundance of pre-recruit Antarctic toothfish in the southern Ross Sea

    from a well- designed survey in the Ross Sea could be a useful input into the stock assessment model ... survey was presented to the 2011 meeting of WG-SAM. In this paper we provide an update of the preliminary ... for the research proposal for a longline survey of pre-recruit toothfish in the southern Ross Sea ... location, the number of sets in each stratum required to achieve target c.v.s, and associated sampling ...

    Meeting Document : WG-FSA-11/47 : Автор(ы): S.M. Hanchet, S. Mormede, S.J. Parker and A. Dunn (New Zealand)

Страницы