Результаты поиска

1. Intra-annual variability in the abundance of Antarctic krill (Euphausia superba) at South Georgia, 2002–2005: within-year variation provides a new framework for interpreting previous ‘annual’ krill density estimates

   kHz) were deployed on moorings on- and off-shelf to the northwest of South Georgia to measure ... abundance of Antarctic krill continuously between 14 October 2002 and 29 December 2005. A distinct seasonal ... explained 71% of the observed week-week variation. Mooring estimates of krill abundance were not ... South Georgian western core box region between 1990 and 2005. Comparison of these ‘snap-shot’ ship ...

   Meeting Document : WG-EMM-06/25 : Автор(ы): R.A. Saunders, J.L. Watkins, K. Reid, E.J. Murphy, P. Enderlein, D.G. Bone and A.S. Brierley (United Kingdom)

2. Marine mammals and demersal longlines fishery interactions in Crozet and Kerguelen Exclusive Economic Zones: an assessment of the depredation level

   (Arctocephalus sp.) interactions with longlines fishing operations were reported by observers onboard of fishing ... and 2005. In Crozet waters, 71% of the 1308 longlines presented marine mammals interactions with ... % of the 6262 longlines monitored in the Kerguelen waters. Interactions occurred over the whole fishing ... . Depredation effect was assessed by comparing CPUEs of the longlines, in absence/presence of any marine mammals ...

   Meeting Document : WG-FSA-06/63 : Автор(ы): C. Roche, N. Gasco, G. Duhamel and C. Guinet (France)

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

   Abstract:  The current status of national surveys on monitoring of marine debris and their impact ... until recently. The number of debris items found has increased in the last season reported at Bird ... Island (2004), Signy Island (2005) and King George Island (2005). The majority of items found were ... packaging materials. The level of marine debris found in Grey-headed albatross, Black-browed albatross and ...

   Meeting Document : SC-CAMLR-XXIV/BG/13 : Автор(ы): Secretariat

4. Modelling growth of Antarctic krill: growth trends with sex, length, season, and region

   Abstract:  Growth trends of Antarctic krill with sex, length, season and region using over 10 ... years accumulation of instantaneous growth rate (IGR) measurements were modelled using a Linear Mixed ... Model (LMM). A model of inter-moult period (IMP) as a function of temperature, required to convert IGR ... this model was used to predict seasonal IMP using a model of the average sea-surface temperature ...

   Meeting Document : WG-EMM-05/29 : Автор(ы): S. Kawaguchi, S. Candy, R. King (Australia), M. Naganobu (Japan) and S. Nicol (Australia)

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

   of breeding birds was strongly correlated between the two islands, and over the whole study period ... both study populations have trended downward at around 1.2% per year. The number of established ... breeders on Gough Island has declined more rapidly, and significantly, at an annual rate of 2.3 ... %. Monitoring established breeders maybe a sensitive means of detecting population trends. Average breeding ...

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

6. RELEVANT ISSUES IN REGARDS TO THE MANAGEMENT OF ANTARCTIC KRILL FISHERIES IN AREA 48

   magnitude of the scientific uncertainties and data gaps affecting the subdivision of precautionary catch ... the data obtaining process financially. The discussion of that issue at 2009 WG-EMM meeting will be ... useful in a course of the consideration a decision on a Stage 1 allocation. In addition, this meeting ... monitoring plan for krill in Area 48. Due to the high level of risk associated with maintaining the current ...

   Meeting Document : WG-EMM-09/31 : Автор(ы): L. Pshenichnov and G. Milinevsky (Ukraine)

7. Dynamics of Antarctic penguin populations in relation to inter-annual variability in sea-ice distribution

   Abstract:  To investigate the role of sea ice cover on penguin populations we used principal ... component analysis to compare population variables of Adélie (Pygoscelis adeliae) and chinstrap (Pygoscelis ... population size remained stable, whereas that of chinstrap penguins decreased slightly. For neither species ... apparent inverse density-dependent relationship between the number of Adélie breeding pairs and the number ...

   Meeting Document : WG-EMM-96/10 : Автор(ы): Murphy, E.J., Croxall, J.P., Trathan, P.N.

8. Estimates of primary production by ice algae and phytoplankton in the coastal ice-covered area near Syowa Station, Antarctica

   Abstract:  Annual primary production of ice algae and phytoplankton under fast ice near Syowa ... February 1983 to January 1984 was calculated with a mathematical model based on measured parameters of ... solar radiation, day length, attenuation coefficients of snow, ice and water, chlorophyll a standing ... -2 h-1 in June to 13.3 E m-2 h-1 in December. Relative light intensity estimated at the bottom of sea ...

   Meeting Document : WG-KRILL-93/28 : Автор(ы): H. Satoh, K. Watanabe and T. Hoshiai (Japan)

9. Orientation of Antarctic krill in an aquarium

   slightly less than that when animals were hovering, 49.7° (SD=7.5°, N=50). Such an acute angle of elevation ... . Although mature females with marked swelling of the cephalothorax were not included in the experiment, the ... center of mass was found to be situated more to the anterior than in males and immature females. The ... hovering orientation, which is close to average body orientation, of mature males and mature females was ...

   Meeting Document : WG-KRILL-93/24 : Автор(ы): Y. Endo (Japan)

10. Semi-empirical acoustic estimates of krill biomass derived from simulated commercial fishery data based on single-frequency acoustics

    fishing seasons. From these data we develop semi-empirical indices of acoustic biomass in a Generalized ... Linear Modeling framework. We correlate these estimates of biomass with acoustic estimates derived from ... Elephant Island and West Shelf Areas of the US AMLR survey grid. Cross-validation of acoustic estimates ... frequency of animals is skewed towards larger animals. We show that it is possible to develop semi-empirical ...

    Meeting Document : SG-ASAM-12/04 : Автор(ы): A.M. Cossio, G.W. Watters, C.S. Reiss, J. Hinke and D. Kinzey (USA)

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