Résultats de la recherche
-
Acoustic data analysis and models of krill spatial distribution
-1.66 and -2.04, respectively, whereas the krill spectra were much flatter with near-zero slopes ... those for krill distributions. The spectral slope of -1.66 is quite consistent with the -5/3 power ... chlorophyll may be interpreted by the turbulence model with a slight modification by biological activities ... vicinity of King George Island through spectral analysis, and compare the resulting power spectrum with ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 311–329 : Auteur(s): Morin, A., A. Okubo and K. Kawasaki
-
Otolith and body size relationships in the mackerel icefish (Champsocephalus gunnari)
of food webs generally begins with a simple descriptive picture of major interactions. Extending ... Georgia were compared with a relationship of otolith size to fish size obtained from a small sample of ... with a precision of 0.1 mg. Statistical analyses were undertaken using the packages Minitab (1998 ... large samples, with consequently large numbers of degrees of freedom, critical values for statistical ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 117–123 : Auteur(s): Everson, I., B. Bendall and A. Murray
-
Patterns and processes in the distribution and dynamics of Antarctic krill
comparison with the Antarctic ecosystem, estimation of fractal dimensions of phytoplankton patches suggests ... fluorescence and temperature declines with increasing wavenumber (decreasing wavelength). The slope of the ... facilitate comparison with the power spectrum of Weber et al. (1986), we also analyzed the data by first ... . COMPARISON OF DATA WITH THE PHENOMENOLOGICAL MODEL PREDICTIONS OF MANGEL As an example of how we intend to ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 281–299 : Auteur(s): Levin, S.A., A. Morin and T.M. Powell
-
Age and growth of Antarctic euphausiacea (crustacea) under natural conditions
only once. (Published in Marine Biology, 96: 483-495 (1987)) File: 12-Siegel.pdf ... once. * published in Marine Biology 96 : 483-495 (1987) 1. Bundesforschungsanstalt fur Fischerei ... dans Marine Biology 96 483-495 (1987) Resurnen Se estudiaron cinco especies de crustaceos ... Marine Biology 96 483-495 (1987) Pe310Me M3yqanOCb nHTb BHAoB aHTapKTHqeCKHX paKoo6pa3Hblx-3y ... 0AliH pa3. * ony6nliKoBaHO B Marine Biology ~ 483-495 (1987) ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 369-370 : Auteur(s): Siegel, V.
-
Status of the krill stock around Elephant Island in 1991/92 and 1992/93
austral summers of 1991/92 and 1992/93 are described and compared with information from previous years ... other years appears to be associated with female maturity development and spawning during the early ... described and compared with information from previous years. The general distribution of krill length and ... with female maturity development and spawning during the early summer months. The overall abundance ... -Krill) contribution by Loeb and Siegel (1992). That data set is now complete and is compared here with ... ) fitted with 505 pm mesh net, a flow metre and a time-depth recorder. Tows were open and oblique and ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 7–33 : Auteur(s): Loeb, V. and V. Siegel
-
Integration of CPUE data into assessments using the Generalised Yield Model
frequency distributions for the spawning stock depletion, one calculated using the new method with ... standardised CPUE trends with those trends predicted by the GYM ailalyses, in each of the last three years WG ... yield that satisfies objectives for the maintenance of the stock spawning biomass in accordance with ... recruitments. Uncertainties ill the demographic parameters and in the estimates of recruitment are dealt with ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 65–74 : Auteur(s): Kirkwood, G.P. and A.J. Constable
-
The CCAMLR-2000 Krill Synoptic Survey: a description of the rationale and design
providing new opportunities for improved analysis. At present, however, no consensus exists with regard to ... krill is managed under the direction of CCAMLR, and regulated in accordance with a sustainable ... uncertainty regarding the relative abundance of krill in the open ocean compared with that over the ... . However, these ecological boundaries do not necessarily coincide with the artificial limits of the ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 1–23 : Auteur(s): Trathan, P.N., J.L. Watkins, A.W.A. Murray, A.S. Brierley, I. Everson, C. Goss, J. Priddle, K. Reid, P. Ward, R. Hewitt, D. Demer, M. Naganobu, S. Kawaguchi, V. Sushin, S.M. Kasatkina, S. Hedley, S. Kim and T. Pauly
-
A hybrid approach to acoustic classification and length estimation of krill
favourable conditions. To overcome these measurement obstacles, a new method has been under development ... since the fi rst Italian survey to the Ross Sea (1989/90). The new method extracts information on ... ). The performance of the new method is estimated by comparing the acoustic estimates of species and ... new method is calculated. All the acoustic data and net samples used to design and test the method ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 33–58 : Auteur(s): Azzali, M., I. Leonori and G. Lanciani
-
Potential nursery areas for fish in the Prydz Bay region
survey with a fine-meshed midwater trawl in Prydz Bay in January/February 1991 indicated the potential ... PRYDZ BAY REGION R. Williams* * Abstract A survey with a fine-meshed midwater trawl in Prydz Bay ... fishes of the Prydz Bay region using equipment with sufficiently fine meshes to sample larval and ... of the net while fishing was monitored with a SIMRAD trawl surveillance sonar, allowing real time ... sampled (Figure 1), with the exception of a few in the southeast and east side of the Bay, where ice ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 369–380 : Auteur(s): Williams, R.
-
Options for allocating the precautionary catch limit of krill among small-scale management units in the Scotia Sea
krill (Euphausia superba) was estimated to be 44.3 million tonnes and a new precautionary catch limit ... are aggregated from submissions to the CCAMLR Secretariat and used here with the permission of the ... dynamic option that could be implemented imme- diately with the limited information to hand, and improved ... as new information became available. Given the limited knowledge of the system, several fundamental ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 81–97 : Auteur(s): Hewitt, R.P., G. Watters, P.N. Trathan, J.P. Croxall, M.E. Goebel, D. Ramm, K. Reid, W.Z. Trivelpiece and J.L. Watkins