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Early development and growth of sterlet (Acipenser ruthenus) in the Czech Republic
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SYSNO ASEP 0368639 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve SCOPUS Title Early development and growth of sterlet (Acipenser ruthenus) in the Czech Republic Author(s) Rybnikár, J. (CZ)
Prokeš, Miroslav (UBO-W) RID, SAI, SAI
Mareš, J. (CZ)
Cileček, M. (CZ)Number of authors 4 Source Title Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis. - : Mendelova univerzita - ISSN 1211-8516
Roč. 59, č. 5 (2011), s. 217-225Number of pages 9 s. Language eng - English Country CZ - Czech Republic Keywords early ontogeny ; specific growth rate ; length-weight relationship ; factor of weight condition Subject RIV GL - Fishing R&D Projects QH71305 GA MZe - Ministry of Agriculture (MZe) CEZ AV0Z60930519 - UBO-W (2005-2011) EID SCOPUS 80155142264 Annotation Growth rate of sterlet larvae and juveniles during 2008 and 2009 was studied under experimental and farming conditions of the Czech Republic. The embryos hatched when reaching a mean total length of 9.0 mm. The exogenous feeding and the larval period of ontogeny started at DAH 9 (day after hatching) reaching TL of 15-17 mm accompanied by melanin plug exclusion. Towards the end of larval period (DAH 39-43, TL 50-58 mm), the embryonic finfold disappeared and the formation of fin apparatus was nearly completed. During the larval and early juvenile development, daily increments of TL and weight ranged between 0.33 – 4.23 mm.d-1 and 0.0018 - 1.6400 g.d-1, respectively. The specific growth rate ranged from 25.65 to 2.73 %.d-1. Growth intensity and length parameters are similar to the stellate sturgeon and lower than those of the Siberian sturgeon, Russian sturgeon and beluga sturgeon. Sterlet’s Fulton weight condition factor was higher than in the Siberian and stellate sturgeon. Workplace Institute of Vertebrate Biology Contact Hana Slabáková, slabakova@ivb.cz, Tel.: 543 422 524 Year of Publishing 2012 Electronic address http://www.mendelu.cz/dok_server/slozka.pl?id=51329;download=82072
Number of the records: 1