Fluctuation and variation in stream-fish assemblages after a catastrophic flood in the Miyagawa River, Japan

Yuichi Kano, Kaori Ohnishi, Yasuo Tomida, Naoyo Ikeda, Naomi Iwawaki, Masahiko Miyagawa, Yasushi Harada, Hidetaka Ichiyanagi, Katsutoshi Watanabe

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

In the autumn of 2004, a typhoon caused a catastrophic flood of the Miyagawa River in Japan. Based upon snorkeling surveys conducted every autumn from 2005 to 2009, we monitored the post flood fluctuation of the local fish assemblages at nine sites of both the main stream and subsidiary streams of the river. Results revealed that species richness significantly increased from 2005 to 2009. In addition, the fish densities of eight species significantly increased over the same period, whereas the density of one species decreased, and that of eight others remained unchanged. Categorization based on Euclidean distance revealed five main clusters from the nine sites. Among these sites, fish assemblages within subsidiary streams were stable as they remained within the same clusters while those in the main stream were dynamically variable through time as they changed cluster membership. In addition, the Euclidean distance between two arbitrary fish assemblages was positively correlated with environmental distance (the Euclidean distance calculated based on river width, depth, velocity and pebble size), time distance, and spatial distance along the river. In conclusion, the fish assemblages were dynamically and regularly altered and varied in the five years after the flood, except for those in the subsidiary streams, and such variation was related to environmental, temporal and spatial variation.

Original languageEnglish
Pages (from-to)447-460
Number of pages14
JournalEnvironmental Biology of Fishes
Volume92
Issue number4
DOIs
Publication statusPublished - Dec 1 2011

Fingerprint

Japan
rivers
fish
river
autumn
typhoon
pebble
temporal variation
spatial variation
species richness
species diversity

All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics
  • Aquatic Science

Cite this

Fluctuation and variation in stream-fish assemblages after a catastrophic flood in the Miyagawa River, Japan. / Kano, Yuichi; Ohnishi, Kaori; Tomida, Yasuo; Ikeda, Naoyo; Iwawaki, Naomi; Miyagawa, Masahiko; Harada, Yasushi; Ichiyanagi, Hidetaka; Watanabe, Katsutoshi.

In: Environmental Biology of Fishes, Vol. 92, No. 4, 01.12.2011, p. 447-460.

Research output: Contribution to journalArticle

Kano, Y, Ohnishi, K, Tomida, Y, Ikeda, N, Iwawaki, N, Miyagawa, M, Harada, Y, Ichiyanagi, H & Watanabe, K 2011, 'Fluctuation and variation in stream-fish assemblages after a catastrophic flood in the Miyagawa River, Japan', Environmental Biology of Fishes, vol. 92, no. 4, pp. 447-460. https://doi.org/10.1007/s10641-011-9861-8
Kano, Yuichi ; Ohnishi, Kaori ; Tomida, Yasuo ; Ikeda, Naoyo ; Iwawaki, Naomi ; Miyagawa, Masahiko ; Harada, Yasushi ; Ichiyanagi, Hidetaka ; Watanabe, Katsutoshi. / Fluctuation and variation in stream-fish assemblages after a catastrophic flood in the Miyagawa River, Japan. In: Environmental Biology of Fishes. 2011 ; Vol. 92, No. 4. pp. 447-460.
@article{735972d14ee64d9ebcc3b4c40a48101f,
title = "Fluctuation and variation in stream-fish assemblages after a catastrophic flood in the Miyagawa River, Japan",
abstract = "In the autumn of 2004, a typhoon caused a catastrophic flood of the Miyagawa River in Japan. Based upon snorkeling surveys conducted every autumn from 2005 to 2009, we monitored the post flood fluctuation of the local fish assemblages at nine sites of both the main stream and subsidiary streams of the river. Results revealed that species richness significantly increased from 2005 to 2009. In addition, the fish densities of eight species significantly increased over the same period, whereas the density of one species decreased, and that of eight others remained unchanged. Categorization based on Euclidean distance revealed five main clusters from the nine sites. Among these sites, fish assemblages within subsidiary streams were stable as they remained within the same clusters while those in the main stream were dynamically variable through time as they changed cluster membership. In addition, the Euclidean distance between two arbitrary fish assemblages was positively correlated with environmental distance (the Euclidean distance calculated based on river width, depth, velocity and pebble size), time distance, and spatial distance along the river. In conclusion, the fish assemblages were dynamically and regularly altered and varied in the five years after the flood, except for those in the subsidiary streams, and such variation was related to environmental, temporal and spatial variation.",
author = "Yuichi Kano and Kaori Ohnishi and Yasuo Tomida and Naoyo Ikeda and Naomi Iwawaki and Masahiko Miyagawa and Yasushi Harada and Hidetaka Ichiyanagi and Katsutoshi Watanabe",
year = "2011",
month = "12",
day = "1",
doi = "10.1007/s10641-011-9861-8",
language = "English",
volume = "92",
pages = "447--460",
journal = "Environmental Biology of Fishes",
issn = "0378-1909",
publisher = "Springer Netherlands",
number = "4",

}

TY - JOUR

T1 - Fluctuation and variation in stream-fish assemblages after a catastrophic flood in the Miyagawa River, Japan

AU - Kano, Yuichi

AU - Ohnishi, Kaori

AU - Tomida, Yasuo

AU - Ikeda, Naoyo

AU - Iwawaki, Naomi

AU - Miyagawa, Masahiko

AU - Harada, Yasushi

AU - Ichiyanagi, Hidetaka

AU - Watanabe, Katsutoshi

PY - 2011/12/1

Y1 - 2011/12/1

N2 - In the autumn of 2004, a typhoon caused a catastrophic flood of the Miyagawa River in Japan. Based upon snorkeling surveys conducted every autumn from 2005 to 2009, we monitored the post flood fluctuation of the local fish assemblages at nine sites of both the main stream and subsidiary streams of the river. Results revealed that species richness significantly increased from 2005 to 2009. In addition, the fish densities of eight species significantly increased over the same period, whereas the density of one species decreased, and that of eight others remained unchanged. Categorization based on Euclidean distance revealed five main clusters from the nine sites. Among these sites, fish assemblages within subsidiary streams were stable as they remained within the same clusters while those in the main stream were dynamically variable through time as they changed cluster membership. In addition, the Euclidean distance between two arbitrary fish assemblages was positively correlated with environmental distance (the Euclidean distance calculated based on river width, depth, velocity and pebble size), time distance, and spatial distance along the river. In conclusion, the fish assemblages were dynamically and regularly altered and varied in the five years after the flood, except for those in the subsidiary streams, and such variation was related to environmental, temporal and spatial variation.

AB - In the autumn of 2004, a typhoon caused a catastrophic flood of the Miyagawa River in Japan. Based upon snorkeling surveys conducted every autumn from 2005 to 2009, we monitored the post flood fluctuation of the local fish assemblages at nine sites of both the main stream and subsidiary streams of the river. Results revealed that species richness significantly increased from 2005 to 2009. In addition, the fish densities of eight species significantly increased over the same period, whereas the density of one species decreased, and that of eight others remained unchanged. Categorization based on Euclidean distance revealed five main clusters from the nine sites. Among these sites, fish assemblages within subsidiary streams were stable as they remained within the same clusters while those in the main stream were dynamically variable through time as they changed cluster membership. In addition, the Euclidean distance between two arbitrary fish assemblages was positively correlated with environmental distance (the Euclidean distance calculated based on river width, depth, velocity and pebble size), time distance, and spatial distance along the river. In conclusion, the fish assemblages were dynamically and regularly altered and varied in the five years after the flood, except for those in the subsidiary streams, and such variation was related to environmental, temporal and spatial variation.

UR - http://www.scopus.com/inward/record.url?scp=80355147081&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=80355147081&partnerID=8YFLogxK

U2 - 10.1007/s10641-011-9861-8

DO - 10.1007/s10641-011-9861-8

M3 - Article

AN - SCOPUS:80355147081

VL - 92

SP - 447

EP - 460

JO - Environmental Biology of Fishes

JF - Environmental Biology of Fishes

SN - 0378-1909

IS - 4

ER -