Результаты поиска

1. 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)

2. 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)

3. 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)

4. 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.

5. 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)

6. 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)

7. 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)

8. Deployment and recovery of an archival tag on an Antarctic toothfish in the Ross Sea

   migration patterns in fishes. Understanding these movement patterns is one of the key information needs for ... the assessment and management of Antarctic toothfish. We deployed 4 pop-off satellite archival tags on ... large toothfish on the Ross Sea slope in January 2013 and report on the first recovery of an Antarctic ... 24, 2013), providing 335 days of data archived at 10 min intervals. Summaries of raw data show strong ...

   Meeting Document : WG-FSA-14/64 : Автор(ы): S.J. Parker, D.N. Webber and R. Arnold (New Zealand)

9. 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-15/03 : Автор(ы): A.M. Cossio, G.W. Watters, C.S. Reiss, J. Hinke and D. Kinzey (USA)

10. Results of the longline survey for toothfish in the northern Ross Sea region (Subarea 88.2 SSRUs A–B) by the FV Janas, New Zealand

    part of a multi-year and multi-member research plan using standardised longline gear to sample ... toothfish populations in the northern areas (60°‑ 66° S) of Subarea 88.2 SSRUs A–B. Sampling strategy and ... data collection adhered to standards set in CM 41-10 (2014). A total of 49.85 t of Antarctic toothfish ... sex-specific Fulton’s condition factor observed in the northern region of SSRU 88.2B were lower than ...

    Meeting Document : WG-SAM-15/46 : Автор(ы): S.J. Parker, R.J.C. Currey and S. Mormede (New Zealand)

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