Search results
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Spatially explicit population dynamics models for Antarctic toothfish in the Ross Sea region
., 2008) or spatially explicit predator–prey interactions. In order to alleviate the issue ... , from 1995 to 2011. Fishing mortal- ity (from 1998) and tagging processes (from 2001) consistent ... 6 939 - - - 2000 752 14 081 - - - 2001 592 14 087 - 259 - 2002 1 355 16 612 831 684 1 2003 1 769 26 ...
Science Journal Paper : CCAMLR Science, Volume 21 (CCAMLR Science, Volume 21) : 19–37 : Author(s): Mormede, S., A. Dunn, S. Hanchet and S. Parker
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Age determination of Notothenia gibberifrons from the South Shetland Islands, Antarctic Peninsula subarea (Subarea 48.1)
between false and annual checks in scales. Age determination by otolith cross sections proved ... determination by otolith cross sections proved to be the most reliable method. Mean length data at age presented ... determination by otolith cross sections proved to be the most reliable method. Mean length data at age ... quadrillages faux et annuels sur les ecailles. La determination de I'age au moyen de section transversale ... of N. gibberifrons are too thick for direct examination, therefore a sectioning technique was used. This technique ... I. specimens and 37 Potter Cove specimens were cut in sections of 0.4 mm thickness; otolith cross sections ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 143-160 : Author(s): Barrera-Oro, E.
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Variations in echosounder calibration with temperature, and some possible implications for acoustic surveys of krill biomass
undertaken in temperate European waters. The most recent of these took place in August 1995 at Uggdalseidet ... , 1993 section P2260E, pp. 15-16), which would equate to a 52.5% underestimation of krill biomass ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 273–281 : Author(s): Brierley, A.S., C. Goss, J.L. Watkins and P. Woodroffe
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Detection and quantitative estimation of krill concentrations by hydroacoustic instruments
of the acoustic cross-section (0) of shrimp calculated in relation to a mean length of 4.5 cm. As can be seen ... y 2 a = individual krill acoustic section, m space acoustic attenuation, db/m ; (1) J max 2 threshold ... . Determination of Antarctic krill acoustic back scattering cross section. Report to Bergen symposium ... MO Dependence of freshwater shrimp acoustic section on frequency (shrimp length - 4.5 cm ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 123-139 : Author(s): Yudanov, K.I.
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Target strengths of Antarctic krill (Euphausia superba)
, except for the fourth cause. In order to extract target strengths or backscattering cross sections ... with the theoretical beam patterns. Integration of the squared beam pattern over the cage cross section ... . This is alternatively expressed through the backscattering cross section 0' by the standard relation, TS=10 log ... section per krill. (2) The effective cage contribution can also be inferred by regressing the equivalent ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 265–279 : Author(s): Everson, I., D.G. Bone, J.L. Watkins and K.G. Foote
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An impact assessment framework for bottom fishing methods in the CAMLR Convention Area
the camera footage only observed a single section of line interacting with a single VME species (stalked ... environmental and biological influences interacting at a range of spatial and temporal scales. In situations ... gear will interact with them. Instead, the assessment calcu- lates the proportion of VME taxa affected ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 195–210 : Author(s): Sharp, B.R., S.J. Parker and N. Smith
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Information on the status of fjord Notothenia rossii, Gobionotothen gibberifrons and Notothenia coriiceps in the lower South Shetland Islands, derived from the 2000–2006 monitoring program at Potter Cove
period of 24 years which began in 1983, and at Harmony Cove in the summers of 2001to 2003. The decline ... which began in 1983, and at Harmony Cove in the summers of 2001to 2003. The decline in trammel net ... of 24 years which began in 1983, and at Harmony Cove in the summers of 2001 to 2003. The decline ... désormais sur 24 années, et à l’anse Harmony, pendant l’été, de 2001 à 2003. Le déclin de Notothenia rossii ... в бухте Гармони в летние месяцы 2001–2003 гг. Все еще SHORT NOTE Barrera-Oro and Marschoff 84 ... , and from 2001 to 2003 at Harmony Cove (HC). By updating analyses of rela- tive abundances ...
Science Journal Paper : CCAMLR Science, Volume 14 (CCAMLR Science, Volume 14) : 83–87 : Author(s): Barrera-Oro, E.R. and E.R. Marschoff
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Target strength studies on Antarctic silverfish (Pleuragramma antarcticum) in the Ross Sea
). The expected back- scattering cross-section (m2) of the mean fish TL for each length class was calculated from ... manual (Simrad, 1993). The backscattering cross-section of the fish σbs was calculated by equation ... of the sectional views measured from the reference point (the nose) at dif- ferent coordinate x and all dimensions ... /λ), the asymptotic upper limit of the acoustic cross-section of an ellipsoid (σbody), approximating the fish body ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 75–104 : Author(s): Azzali, M., I. Leonori, I. Biagiotti, A. De Felice, M. Angiolillo, M. Bottaro and M. Vacchi
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Long-term monitoring of krill recruitment and abundance indices in the Elephant Island area (Antarctic Peninsula)
) with special reference to krill and salps. Archive of Fishery and Marine Research, 44: 115-139. Siegel ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 19–35 : Author(s): Siegel, V., W. de la Mare and V. Loeb
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Do krill and salps compete? Contrary evidence from the krill fisheries
The results of the analysis of deviance (Table 1) show that each factor and interaction is statistically ... and increasing salp density even over several orders of magnitude. This suggests that direct interaction ... the month:area:sea- surface temperature interaction was larger than from the month:area interaction (Table ... for primary production between krill and salps. If this is so, there must be interaction between salp ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 205–216 : Author(s): Kawaguchi, S., T. Ichii, M. Naganobu and W.K. de la Mare