Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Age and growth of European eel, Anguilla Anguilla (Linnaeus, 1758), in Estonian lakes

Age and growth of European eel, Anguilla Anguilla (Linnaeus, 1758), in Estonian lakes To investigate the difference in growth rates of eels in the studied water bodies (Võrtsjärv, Ülemiste, Saadjärv, Vagula, Kaiavere and Kuremaa lakes, all in Estonia), 828 individual eel otoliths from the years 1999–2004 and 2008–2012 were examined for age determination. Anguilla anguilla captured in Lake Võrtsjärv mostly by professional fyke nets (mesh size >36 mm in the cod end) showed the best growth rate (gR = 6.9 cm/year) and had a high Fulton condition factor (K = 0.19), indicating suitable growth conditions in the lake. However samples caught using the same type of gear from the smaller lakes situated near Võrtsjärv, showed much slower gR (3 cm/year) and lower K (0.17) growth rates. The slowest gR (2.6 cm/year) was observed for specimens caught in Lake Kuremaa. Stocking densities are much higher in the small lakes of the region and have a direct effect on the growth rates. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Applied Ichthyology Wiley

Age and growth of European eel, Anguilla Anguilla (Linnaeus, 1758), in Estonian lakes

Download PDF
6 pages

Loading next page...
 
/lp/wiley/age-and-growth-of-european-eel-anguilla-anguilla-linnaeus-1758-in-2n2n7pHSD3

References (27)

Publisher
Wiley
Copyright
Copyright © 2017 Blackwell Verlag GmbH
ISSN
0175-8659
eISSN
1439-0426
DOI
10.1111/jai.13314
Publisher site
See Article on Publisher Site

Abstract

To investigate the difference in growth rates of eels in the studied water bodies (Võrtsjärv, Ülemiste, Saadjärv, Vagula, Kaiavere and Kuremaa lakes, all in Estonia), 828 individual eel otoliths from the years 1999–2004 and 2008–2012 were examined for age determination. Anguilla anguilla captured in Lake Võrtsjärv mostly by professional fyke nets (mesh size >36 mm in the cod end) showed the best growth rate (gR = 6.9 cm/year) and had a high Fulton condition factor (K = 0.19), indicating suitable growth conditions in the lake. However samples caught using the same type of gear from the smaller lakes situated near Võrtsjärv, showed much slower gR (3 cm/year) and lower K (0.17) growth rates. The slowest gR (2.6 cm/year) was observed for specimens caught in Lake Kuremaa. Stocking densities are much higher in the small lakes of the region and have a direct effect on the growth rates.

Journal

Journal of Applied Ichthyology – Wiley

Published: Apr 1, 2017

There are no references for this article.