| dc.creator | Leonardos, I. D. | en |
| dc.creator | Tsikliras, A. C. | en |
| dc.date.accessioned | 2015-11-23T10:37:37Z | |
| dc.date.available | 2015-11-23T10:37:37Z | |
| dc.date.issued | 2011 | |
| dc.identifier | 10.1111/j.1439-0426.2010.01568.x | |
| dc.identifier.issn | 0175-8659 | |
| dc.identifier.uri | http://hdl.handle.net/11615/30243 | |
| dc.description.abstract | P>The potential use of pectoral fin spines for ageing purposes was examined in Aristotle's catfish (Silurus aristotelis) and validated for growth proportionality and growth mark periodicity. Monthly samples (n = 436, total length range: 11.10-36.70 cm) were collected in Lake Pamvotis, Greece from November 2002 to December 2003. Marginal increment analysis showed that the spine width (SW) radius grew proportionally to total body length (TL) (TL = 9.581 + 6.83SW, r2 = 0.66, n = 431, P < 0.01), and was at a minimum in January and February, indicating a single growth mark formation per year (i.e. annulus). Further analyses showed that the morphometric characteristics of the spines did not differ significantly (r2 > 0.80 in all cases) when removed from one side of the fish or the other. The procedure was based on individuals no older than 5 years of age; extrapolation to higher age classes may be critical. | en |
| dc.source | Journal of Applied Ichthyology | en |
| dc.source.uri | <Go to ISI>://WOS:000286478200008 | |
| dc.subject | GROWTH | en |
| dc.subject | PRECISION | en |
| dc.subject | ACCURACY | en |
| dc.subject | OTOLITHS | en |
| dc.subject | Fisheries | en |
| dc.subject | Marine & Freshwater Biology | en |
| dc.title | Validating annulus formation and examining the potential use of pectoral spines for age determination in Aristotle's catfish (Silurus aristotelis) | en |
| dc.type | journalArticle | en |
