Age, growth, and condition of European eel (Anguilla anguilla) from six lakes in the River Havel system (Germany)
Abstract Simon, J. 2007. Age, growth, and condition of European eel (Anguilla anguilla) from six lakes in the River Havel system (Germany). – ICES Journal of Marine Science, 64: 1414–1422. A total of 199 female yellow European eels (Anguilla anguilla), 21.6–66.2 cm long and 3–14 years old, was colle...
Published in: | ICES Journal of Marine Science |
---|---|
Main Author: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Oxford University Press (OUP)
2007
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1093/icesjms/fsm093 http://academic.oup.com/icesjms/article-pdf/64/7/1414/29152380/fsm093.pdf |
id |
croxfordunivpr:10.1093/icesjms/fsm093 |
---|---|
record_format |
openpolar |
spelling |
croxfordunivpr:10.1093/icesjms/fsm093 2024-01-21T09:59:03+01:00 Age, growth, and condition of European eel (Anguilla anguilla) from six lakes in the River Havel system (Germany) Simon, Janek 2007 http://dx.doi.org/10.1093/icesjms/fsm093 http://academic.oup.com/icesjms/article-pdf/64/7/1414/29152380/fsm093.pdf en eng Oxford University Press (OUP) ICES Journal of Marine Science volume 64, issue 7, page 1414-1422 ISSN 1095-9289 1054-3139 Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography journal-article 2007 croxfordunivpr https://doi.org/10.1093/icesjms/fsm093 2023-12-22T09:33:42Z Abstract Simon, J. 2007. Age, growth, and condition of European eel (Anguilla anguilla) from six lakes in the River Havel system (Germany). – ICES Journal of Marine Science, 64: 1414–1422. A total of 199 female yellow European eels (Anguilla anguilla), 21.6–66.2 cm long and 3–14 years old, was collected by electro-fishing from six lakes in the River Havel system (Germany) in spring 2001. The condition and the growth rate, estimated by otolith increments, varied between eels within single lakes and between lakes. Fulton's condition factor ranged from 0.10 to 0.24 and the gross energy content varied between 4.3 and 15.3 MJ kg−1. There were no significant differences in mean condition factor (0.16–0.18) or gross energy content (6.5–9.3 MJ kg−1) between lakes. Fastest growth was in Lake Blankensee (mean 5.3 cm year−1), and the slowest in Lake Sacrow (mean 4.0 cm year−1). For all lakes combined, the overall mean annual increment was estimated to be 4.5 cm year−1. The biggest annual increment on the otoliths was generally laid down during the first and second years in fresh water, when the growth rate was 6.1–8.5 cm year−1. Then, in the subsequent 12 years, the annual increment remained almost constant or decreased slightly (with lake-dependent values of between 1.6 and 6.8 cm year−1). In the River Havel system, the time between stocking of the lakes with glass eels and the recapture of eels at 45 cm body length was 7–10 years. The physiologically possible maximum length (L∞ values) of eels lay in the range 50–130 cm. In comparison with previous investigations (between the 1950s and the 1970s), the only difference observed was a trend towards slower growth. Article in Journal/Newspaper Anguilla anguilla Oxford University Press (via Crossref) ICES Journal of Marine Science 64 7 1414 1422 |
institution |
Open Polar |
collection |
Oxford University Press (via Crossref) |
op_collection_id |
croxfordunivpr |
language |
English |
topic |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography |
spellingShingle |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography Simon, Janek Age, growth, and condition of European eel (Anguilla anguilla) from six lakes in the River Havel system (Germany) |
topic_facet |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography |
description |
Abstract Simon, J. 2007. Age, growth, and condition of European eel (Anguilla anguilla) from six lakes in the River Havel system (Germany). – ICES Journal of Marine Science, 64: 1414–1422. A total of 199 female yellow European eels (Anguilla anguilla), 21.6–66.2 cm long and 3–14 years old, was collected by electro-fishing from six lakes in the River Havel system (Germany) in spring 2001. The condition and the growth rate, estimated by otolith increments, varied between eels within single lakes and between lakes. Fulton's condition factor ranged from 0.10 to 0.24 and the gross energy content varied between 4.3 and 15.3 MJ kg−1. There were no significant differences in mean condition factor (0.16–0.18) or gross energy content (6.5–9.3 MJ kg−1) between lakes. Fastest growth was in Lake Blankensee (mean 5.3 cm year−1), and the slowest in Lake Sacrow (mean 4.0 cm year−1). For all lakes combined, the overall mean annual increment was estimated to be 4.5 cm year−1. The biggest annual increment on the otoliths was generally laid down during the first and second years in fresh water, when the growth rate was 6.1–8.5 cm year−1. Then, in the subsequent 12 years, the annual increment remained almost constant or decreased slightly (with lake-dependent values of between 1.6 and 6.8 cm year−1). In the River Havel system, the time between stocking of the lakes with glass eels and the recapture of eels at 45 cm body length was 7–10 years. The physiologically possible maximum length (L∞ values) of eels lay in the range 50–130 cm. In comparison with previous investigations (between the 1950s and the 1970s), the only difference observed was a trend towards slower growth. |
format |
Article in Journal/Newspaper |
author |
Simon, Janek |
author_facet |
Simon, Janek |
author_sort |
Simon, Janek |
title |
Age, growth, and condition of European eel (Anguilla anguilla) from six lakes in the River Havel system (Germany) |
title_short |
Age, growth, and condition of European eel (Anguilla anguilla) from six lakes in the River Havel system (Germany) |
title_full |
Age, growth, and condition of European eel (Anguilla anguilla) from six lakes in the River Havel system (Germany) |
title_fullStr |
Age, growth, and condition of European eel (Anguilla anguilla) from six lakes in the River Havel system (Germany) |
title_full_unstemmed |
Age, growth, and condition of European eel (Anguilla anguilla) from six lakes in the River Havel system (Germany) |
title_sort |
age, growth, and condition of european eel (anguilla anguilla) from six lakes in the river havel system (germany) |
publisher |
Oxford University Press (OUP) |
publishDate |
2007 |
url |
http://dx.doi.org/10.1093/icesjms/fsm093 http://academic.oup.com/icesjms/article-pdf/64/7/1414/29152380/fsm093.pdf |
genre |
Anguilla anguilla |
genre_facet |
Anguilla anguilla |
op_source |
ICES Journal of Marine Science volume 64, issue 7, page 1414-1422 ISSN 1095-9289 1054-3139 |
op_doi |
https://doi.org/10.1093/icesjms/fsm093 |
container_title |
ICES Journal of Marine Science |
container_volume |
64 |
container_issue |
7 |
container_start_page |
1414 |
op_container_end_page |
1422 |
_version_ |
1788693175638949888 |