Advanced search
Publication Cover
African Journal of Marine Science Volume 35, 2013 - Issue 3
Submit an article Journal homepage
226
Views
2
CrossRef citations to date
0
Altmetric
Research Papers

Can anchovy age structure be estimated from length distribution data collected during surveys?

C L de MoorMarine Resource Assessment and Management Group (MARAM), Department of Mathematics and Applied Mathematics, University of Cape Town, Private Bag X3, Rondebosch7701, South AfricaCorrespondence[email protected]
,
D S ButterworthMarine Resource Assessment and Management Group (MARAM), Department of Mathematics and Applied Mathematics, University of Cape Town, Private Bag X3, Rondebosch7701, South Africa
&
J C CoetzeeBranch Fisheries Management, Department of Agriculture, Forestry and Fisheries, Private Bag X2, Rogge Bay8012, South Africa
Pages 335-342 | Received 19 Dec 2012, Accepted 29 May 2013, Published online: 25 Oct 2013

References

  • Barange M, Hampton I, Roel BA. 1999. Trends in the abundance and distribution of anchovy and sardine on the South African continental shelf in the 1990s, deduced from acoustic surveys. South African Journal of Marine Science 21: 367–391.
  • Coetzee JC. 2012. Re-analysis of anchovy WLF data to estimate proportion-at-age 1. Report No. FISHERIES/2012/APR/SWG-PEL/18. Cape Town: Department of Agriculture, Forestry and Fisheries.
  • Coetzee JC, Merkle D. 2012. A new method for calculating proportion and weight of 1-yr old anchovy in the November surveys. Report No. FISHERIES/2012/FEB/SWG-PEL/08. Cape Town: Department of Agriculture, Forestry and Fisheries.
  • de Moor CL, Butterworth DS. 2009. The 2004 re-assessment of the South African sardine and anchovy populations to take account of revisions to earlier data and recent record abundances. African Journal of Marine Science 31: 333–348.
  • de Moor CL, Butterworth DS, Coetzee JC. 2008. Revised estimates of abundance of South African sardine and anchovy from acoustic surveys adjusting for echosounder saturation in earlier surveys and attenuation effects for sardine. African Journal of Marine Science 30: 219–232.
  • de Moor CL, Coetzee JC, Durholtz D, Merkle D, van der Westhuizen JJ, Butterworth DS. 2012. A record of the generation of data used in the 2012 sardine and anchovy assessments. Report No. FISHERIES/2012/AUG/SWG-PEL/41. Cape Town: Department of Agriculture, Forestry and Fisheries. Available at www.mth.uct.ac.za/maram/pub/2012/FISHERIES_2012_AUG_SWG-PEL_41.pdf [accessed October 2013].
  • Fournier DA, Skaug HJ, Ancheta J, Ianelli J, Magnusson A, Maunder MN, Nielsen A, Sibert J. 2012. AD Model Builder: using automatic differentiation for statistical inference of highly parameterized complex nonlinear models. Optimization Methods & Software 27: 233–249.
  • Gayanilo FC Jr, Sparre P, Pauly D. 2005. The FAO-ICLARM Stock Assessment Tools (FiSAT II) user's guide. Rome: Food and Agriculture Organization.
  • McAllister MK, Ianelli JN. 1997. Bayesian stock assessment using catch-age data and the sampling-importance resampling algorithm. Canadian Journal of Fisheries and Aquatic Sciences 54: 284–300.
  • Prosch RM. 1986. Early growth in length of the anchovy Engraulis capensis Gilchrist off South Africa. South African Journal of Marine Science 4: 181–191.
  • Roy C, van der Lingen CD, Coetzee JC, Lutjeharms JRE. 2007. Abrupt environmental shift associated with changes in the distribution of Cape anchovy Engraulis encrasicolus spawners in the southern Benguela. African Journal of Marine Science 29: 309–319.
  • Smith BJ. 2003. Bayesian Output Analysis Program (BOA) Version 1.1 User's Manual. Available at http://www.public-health.uiowa.edu/boa/BOA.pdf [accessed October 2012].
  • Waldron ME. 1994. Validation of annuli of the South African anchovy, Engraulis capensis, using daily growth increments. ICES Journal of Marine Science 51: 233–234.
  • Waldron ME, Armstrong MJ, Prosch RM. 1989. Aspects of the variability in growth of juvenile anchovy Engraulis capensis in the southern Benguela system. South African Journal of Marine Science 8: 9–19.
  • Waldron ME, Armstrong MJ, Roel BA. 1992. Birthdate distribution of juvenile anchovy Engraulis capensis caught in the Southern Benguela ecosystem. South African Journal of Marine Science 12: 865–871.

Reprints and Corporate Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

To request a reprint or corporate permissions for this article, please click on the relevant link below:

Order Reprints Request Corporate Permissions

Academic Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

Obtain permissions instantly via Rightslink by clicking on the button below:

Request Academic Permissions

If you are unable to obtain permissions via Rightslink, please complete and submit this Permissions form. For more information, please visit our Permissions help page.

Related research

People also read lists articles that other readers of this article have read.

Recommended articles lists articles that we recommend and is powered by our AI driven recommendation engine.

Cited by lists all citing articles based on Crossref citations.
Articles with the Crossref icon will open in a new tab.