Validating annulus formation and examining the potential use of pectoral spines for age determination in Aristotle's catfish (Silurus aristotelis)
| dc.contributor.author | Leonardos, I. D. | en |
| dc.contributor.author | Tsikliras, A. C. | en |
| dc.date.accessioned | 2015-11-24T16:34:38Z | |
| dc.date.available | 2015-11-24T16:34:38Z | |
| dc.identifier.issn | 0175-8659 | - |
| dc.identifier.uri | https://olympias.lib.uoi.gr/jspui/handle/123456789/7829 | |
| dc.rights | Default Licence | - |
| dc.subject | growth | en |
| dc.subject | precision | en |
| dc.subject | accuracy | en |
| dc.subject | otoliths | en |
| dc.title | Validating annulus formation and examining the potential use of pectoral spines for age determination in Aristotle's catfish (Silurus aristotelis) | en |
| heal.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 |
| heal.access | campus | - |
| heal.fullTextAvailability | TRUE | - |
| heal.identifier.primary | DOI 10.1111/j.1439-0426.2010.01568.x | - |
| heal.identifier.secondary | <Go to ISI>://000286478200008 | - |
| heal.identifier.secondary | http://onlinelibrary.wiley.com/store/10.1111/j.1439-0426.2010.01568.x/asset/j.1439-0426.2010.01568.x.pdf?v=1&t=h1ixm7av&s=da172f825726a7cdb602c9ca306d8594cde8ae00 | - |
| heal.journalName | Journal of Applied Ichthyology | en |
| heal.journalType | peer reviewed | - |
| heal.language | en | - |
| heal.publicationDate | 2011 | - |
| heal.recordProvider | Πανεπιστήμιο Ιωαννίνων. Σχολή Επιστημών και Τεχνολογιών. Τμήμα Βιολογικών Εφαρμογών και Τεχνολογιών | el |
| heal.type | journalArticle | - |
| heal.type.el | Άρθρο Περιοδικού | el |
| heal.type.en | Journal article | en |
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