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Differences in the maturation level among life histories of the Japanese eel Anguilla japonica in the Nagata River, Japan Cover

Differences in the maturation level among life histories of the Japanese eel Anguilla japonica in the Nagata River, Japan

Oceanological and Hydrobiological Studies
Volume 46 (2017): Issue 4 (December 2017)
By: Naoko Chino,  Chifumi Imai,  Harumi Sakai and  Takaomi Arai  
Open Access
|Dec 2017

Figures & Tables

Figure 1

Map showing the location of the Nagata River, Shimonoseki, Yamaguchi Prefecture
Map showing the location of the Nagata River, Shimonoseki, Yamaguchi Prefecture

Figure 2

Frequency distribution of the mean values of the Sr:Ca ratio outside the elver mark (150 μm in radius) in each otolith of specimens of the Japanese eel. Black and white columns suggest silver eels and yellow eels, respectively
Frequency distribution of the mean values of the Sr:Ca ratio outside the elver mark (150 μm in radius) in each otolith of specimens of the Japanese eel. Black and white columns suggest silver eels and yellow eels, respectively

Figure 3

The relationship between the gonadosomatic index (GSI) and the mean values of the Sr:Ca ratio outside the elver mark (150 μm in radius) in each otolith of specimens of the Japanese eel
The relationship between the gonadosomatic index (GSI) and the mean values of the Sr:Ca ratio outside the elver mark (150 μm in radius) in each otolith of specimens of the Japanese eel

Figure 4

The relationship between the gonadosomatic index (GSI) and the age of the Japanese eel
The relationship between the gonadosomatic index (GSI) and the age of the Japanese eel
DOI: https://doi.org/10.1515/ohs-2017-0046 | Journal eISSN: 1897-3191 | Journal ISSN: 1730-413X
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Language: English
Page range: 472 - 477
Submitted on: Feb 19, 2017
|
Accepted on: May 15, 2017
|
Published on: Dec 12, 2017
Published by: University of Gdańsk
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year
Keywords:
Japanese eel,
Anguilla japonica,
silver eel,
gonadosomatic index,
otolith,
Sr:Ca ratios
Related subjects:
Chemistry,
Chemistry, other,
Geosciences,
Geosciences, other,
Life sciences,
Life sciences, other

© 2017 Naoko Chino, Chifumi Imai, Harumi Sakai, Takaomi Arai, published by University of Gdańsk
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

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