Open Access

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

Naoko Chino

Naoko Chino

Environmental and Life Sciences Programme, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku LinkGadong, Brunei Darussalam
Search for this author on
Sciendo|Google Scholar
Chino, Naoko
, 
Chifumi Imai

Chifumi Imai

Environmental and Life Sciences Programme, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku LinkGadong, Brunei Darussalam
Search for this author on
Sciendo|Google Scholar
Imai, Chifumi
, 
Harumi Sakai

Harumi Sakai

Environmental and Life Sciences Programme, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku LinkGadong, Brunei Darussalam
Search for this author on
Sciendo|Google Scholar
Sakai, Harumi
 and 
Takaomi Arai

Takaomi Arai

Environmental and Life Sciences Programme, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku LinkGadong, Brunei Darussalam
Search for this author on
Sciendo|Google Scholar
Arai, Takaomi
  
Dec 12, 2017
Differences in the maturation level among life histories of the Japanese eel Anguilla japonica in the Nagata River, Japan's Cover Image
About this article
Previous Article
Next Article
Cite
Download Cover
Article Category: Short communication
Published Online: Dec 12, 2017
Page range: 472 - 477
Received: Feb 19, 2017
Accepted: May 15, 2017
DOI: https://doi.org/10.1515/ohs-2017-0046
Keywords
© 2017 Faculty of Oceanography and Geography, University of Gdańsk, Poland. All rights reserved
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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
Language:
English
Publication timeframe:
4 times per year
Journal Subjects:
Chemistry, Chemistry, other, Geosciences, Geosciences, other, Life Sciences, Life Sciences, other
Journal RSS Feed