| Autor: |
Rypel, AndrewL., Richter, TracyJ. |
| Zdroj: |
North American Journal of Fisheries Management; December 2008, Vol. 28 Issue: 6 p1843-1846, 4p |
| Abstrakt: |
AbstractWe generated a standard weight (Ws) equation for the blacktail redhorse Moxostoma poecilurum by use of the empirical percentile (EmP) method. Length and weight data were compiled from 3,098 individuals representing 60 populations across five states in the southeastern USA. These data were subsequently used to create the Wsequation. The species' total length (TL) constraints (130–450 mm) were used to produce the final Wsequation: log10Ws= −5.182 + 3.087 · log10TL. No length-related bias could be detected from the equation, indicating that it is a strong Wsequation. A separate data set from 42 populations and 179 individuals was used to validate the Wsequation. We recommend use of this equation for assessment of blacktail redhorse population dynamics, and we contend that creation of EmP Wsequations for other nongame fishes would be useful in management of fish communities as a whole. |
| Databáze: |
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