How should the sardine length frequencies be weighted?
| dc.contributor.author | De Moor, Carryn L | |
| dc.contributor.author | Butterworth, Doug S | |
| dc.date.accessioned | 2016-03-17T09:18:34Z | |
| dc.date.available | 2016-03-17T09:18:34Z | |
| dc.date.issued | 2009 | |
| dc.date.updated | 2016-03-17T09:11:09Z | |
| dc.description.abstract | Length frequencies are calculated for the annual sardine November surveys using samples from trawls undertaken during the spawner biomass acoustic surveys and using a method of calculation that was developed by Roel and probably also Hampton (Coetzee pers. comm.). These length frequencies are used in estimating the acoustic biomass and the proportion-at-age at the time of the survey. This document briefly considers the current method used to estimate the survey length frequency and develops some alternative methods. The implications of the alternative methods will be discussed in a future document. | |
| dc.identifier.apacitation | De Moor, C. L., & Butterworth, D. S. (2009). <i>How should the sardine length frequencies be weighted?</i> University of Cape Town ,Faculty of Science ,Marine Resource Assessment and Management Group. Retrieved from http://hdl.handle.net/11427/17924 | en_ZA |
| dc.identifier.chicagocitation | De Moor, Carryn L, and Doug S Butterworth <i>How should the sardine length frequencies be weighted?.</i> University of Cape Town ,Faculty of Science ,Marine Resource Assessment and Management Group, 2009. http://hdl.handle.net/11427/17924 | en_ZA |
| dc.identifier.citation | de Moor, C. L., & Butterworth, D. S. (2009). How should the sardine length frequencies be weighted?. Marine and Coastal Management document: MCM. | en_ZA |
| dc.identifier.ris | TY - Working Paper AU - De Moor, Carryn L AU - Butterworth, Doug S AB - Length frequencies are calculated for the annual sardine November surveys using samples from trawls undertaken during the spawner biomass acoustic surveys and using a method of calculation that was developed by Roel and probably also Hampton (Coetzee pers. comm.). These length frequencies are used in estimating the acoustic biomass and the proportion-at-age at the time of the survey. This document briefly considers the current method used to estimate the survey length frequency and develops some alternative methods. The implications of the alternative methods will be discussed in a future document. DA - 2009 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2009 T1 - How should the sardine length frequencies be weighted? TI - How should the sardine length frequencies be weighted? UR - http://hdl.handle.net/11427/17924 ER - | en_ZA |
| dc.identifier.uri | http://hdl.handle.net/11427/17924 | |
| dc.identifier.vancouvercitation | De Moor CL, Butterworth DS. How should the sardine length frequencies be weighted?. 2009 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/17924 | en_ZA |
| dc.language | eng | en_ZA |
| dc.publisher.department | Marine Resource Assessment and Management Group | en_ZA |
| dc.publisher.faculty | Faculty of Science | en_ZA |
| dc.publisher.institution | University of Cape Town | |
| dc.title | How should the sardine length frequencies be weighted? | en_ZA |
| dc.type | Working Paper | en_ZA |
| uct.type.publication | Research | en_ZA |
| uct.type.resource | Research paper | en_ZA |