Skip Navigation

Erratum for Demer and Conti, ICES J. Mar. Sci. 60 (2) 429-434.
ICES Journal of Marine Science: Journal du Conseil 2004 61(1):157-158; doi:10.1016/j.icesjms.2003.12.003
© 2004 by ICES/CIEM International Council for the Exploration of the Sea/Conseil International pour l'Exploration de la Mer
This Article
Right arrow Extract Freely available
Right arrow FREE Full Text (PDF) Freely available
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrowRequest Permissions
Google Scholar
Right arrow Articles by Demer, D. A
Right arrow Articles by Conti, S. G
Right arrow Search for Related Content
PubMed
Right arrow Articles by Demer, D. A
Right arrow Articles by Conti, S. G
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

Reconciling theoretical versus empirical target strengths of krill: effects of phase variability on the distorted-wave Born approximation

David A Demer* and Stéphane G Conti

Southwest Fisheries Science Center 8604 La Jolla Shores Drive, La Jolla, CA 92037, USA

*Correspondence to D. A. Demer: tel: +1 858 546 5603; fax: +1 858 546 5608. e-mail: david.demer{at}noaa.gov.

In the caption for Figure 5, it was erroneously stated that the TS curves were normalized to L = 31.6 mm. They were normalized to L = 38.35 mm. Also, in the computations for Figure 5, the 100 realizations of TSSDWBA were too large, by a factor of 4{pi}, and were averaged in the logarithmic domain. In the revised computations and figure, the 100 realizations of TSSDWBA have been averaged in the linear domain, and the 4{pi} error was corrected. Cascading from these corrections, the TSSDWBA – TSDWBA curve has been decreased by approximately 11 dB; the curve fit is {Delta}TS = 0.01414f – 1.02044 dB; and the expected values (E[TSSDWBA(f)]) are approximately –15.4, –7.5, and –7.9 dB different from the deterministic Greene et al. model predictions at 38, 120, and 200 kHz, respectively. The revised Figure 5 is printed overleaf.


Figure 1
View larger version (11K):
[in this window]
[in a new window]
[Download PowerPoint slide]
  		Figure 5 A comparison (a) of the Greene et al., DWBA and SDWBA models for L = 38.35 mm. The first model is frequency transformed (Greene et al., 1991), and the latter two models are averaged over {theta} = N(45.3°, 30.4°). (b) Differences between the SDWBA and DWBA models are also shown. For rapid computations of E[TSSDWBA(f)] below 210 kHz, the linear approximation for the differences between the probabilistic SDWBA model and the deterministic DWBA model is {Delta}TS = 0.01414f – 1.02044 dB.

 
In the Conclusions section on p. 433, the second-from-last line should read:

Although the SDWBA model is probabilistic and therefore predicts TS within a range of about 8 dB (E[TSSDWBA(f)] ± 1 s.d.), the expected values (E[TSSDWBA(f)]) are approximately –15.4, –7.5, and –7.9 dB different from the deterministic Greene et al. model predictions at 38, 120, and 200 kHz, respectively (typical survey frequencies).


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?



This Article
Right arrow Extract Freely available
Right arrow FREE Full Text (PDF) Freely available
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrowRequest Permissions
Google Scholar
Right arrow Articles by Demer, D. A
Right arrow Articles by Conti, S. G
Right arrow Search for Related Content
PubMed
Right arrow Articles by Demer, D. A
Right arrow Articles by Conti, S. G
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?