Growth and migration of the roughskin sculpin, Trachidermus fasciatus, in the Kashima River, Kyushu Island, Japan

Norio Onikura, Naohiko Takeshita, Seiichi Matsui, Seirô Kimura

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The growth and migration of the roughskin sculpin, Trachidermus fasciatus, were investigated using a mark-recapture method. Samples were obtained by casting net, hand net and trap at sites 0-7 km upstream from the estuary of the Kashima River, in 1993-1996. A total of 1,029 individuals were marked, 75 being recaptured 105 times in total. Seasonal changes in the total lengths of captured and recaptured individuals indicated an annual growth of ca. 130-190 mm TL, with a period of growth stagnation in summer. Because only one population mode was apparent, the sculpin is thought to have a single-year life span. Individuals showed primarily upstream migration between May to July, eleven recaptured individuals having moved upstream during this period. From August to October, almost all recaptured individuals were taken at the same sites, as before, 6-7 km from the river mouth, the species apparently not the migrating long distances at this time. Subsequently, all sculpins disappeared from the 6-7 km sites by December, sixteen individuals recaptured downstream.

Original languageEnglish
Pages (from-to)31-37
Number of pages7
JournalJapanese Journal of Ichthyology
Volume46
Issue number1
Publication statusPublished - May 25 1999

Fingerprint

Cottidae
Japan
rivers
river
mark-recapture method
mouth
hands
estuaries
traps
summer
estuary
sampling
Trachidermus fasciatus
methodology

All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics

Cite this

Growth and migration of the roughskin sculpin, Trachidermus fasciatus, in the Kashima River, Kyushu Island, Japan. / Onikura, Norio; Takeshita, Naohiko; Matsui, Seiichi; Kimura, Seirô.

In: Japanese Journal of Ichthyology, Vol. 46, No. 1, 25.05.1999, p. 31-37.

Research output: Contribution to journalArticle

@article{b3d347ea58ce474fb52f5d7c4cc5e396,
title = "Growth and migration of the roughskin sculpin, Trachidermus fasciatus, in the Kashima River, Kyushu Island, Japan",
abstract = "The growth and migration of the roughskin sculpin, Trachidermus fasciatus, were investigated using a mark-recapture method. Samples were obtained by casting net, hand net and trap at sites 0-7 km upstream from the estuary of the Kashima River, in 1993-1996. A total of 1,029 individuals were marked, 75 being recaptured 105 times in total. Seasonal changes in the total lengths of captured and recaptured individuals indicated an annual growth of ca. 130-190 mm TL, with a period of growth stagnation in summer. Because only one population mode was apparent, the sculpin is thought to have a single-year life span. Individuals showed primarily upstream migration between May to July, eleven recaptured individuals having moved upstream during this period. From August to October, almost all recaptured individuals were taken at the same sites, as before, 6-7 km from the river mouth, the species apparently not the migrating long distances at this time. Subsequently, all sculpins disappeared from the 6-7 km sites by December, sixteen individuals recaptured downstream.",
author = "Norio Onikura and Naohiko Takeshita and Seiichi Matsui and Seir{\^o} Kimura",
year = "1999",
month = "5",
day = "25",
language = "English",
volume = "46",
pages = "31--37",
journal = "Ichthyological Research",
issn = "1341-8998",
publisher = "Springer Japan",
number = "1",

}

TY - JOUR

T1 - Growth and migration of the roughskin sculpin, Trachidermus fasciatus, in the Kashima River, Kyushu Island, Japan

AU - Onikura, Norio

AU - Takeshita, Naohiko

AU - Matsui, Seiichi

AU - Kimura, Seirô

PY - 1999/5/25

Y1 - 1999/5/25

N2 - The growth and migration of the roughskin sculpin, Trachidermus fasciatus, were investigated using a mark-recapture method. Samples were obtained by casting net, hand net and trap at sites 0-7 km upstream from the estuary of the Kashima River, in 1993-1996. A total of 1,029 individuals were marked, 75 being recaptured 105 times in total. Seasonal changes in the total lengths of captured and recaptured individuals indicated an annual growth of ca. 130-190 mm TL, with a period of growth stagnation in summer. Because only one population mode was apparent, the sculpin is thought to have a single-year life span. Individuals showed primarily upstream migration between May to July, eleven recaptured individuals having moved upstream during this period. From August to October, almost all recaptured individuals were taken at the same sites, as before, 6-7 km from the river mouth, the species apparently not the migrating long distances at this time. Subsequently, all sculpins disappeared from the 6-7 km sites by December, sixteen individuals recaptured downstream.

AB - The growth and migration of the roughskin sculpin, Trachidermus fasciatus, were investigated using a mark-recapture method. Samples were obtained by casting net, hand net and trap at sites 0-7 km upstream from the estuary of the Kashima River, in 1993-1996. A total of 1,029 individuals were marked, 75 being recaptured 105 times in total. Seasonal changes in the total lengths of captured and recaptured individuals indicated an annual growth of ca. 130-190 mm TL, with a period of growth stagnation in summer. Because only one population mode was apparent, the sculpin is thought to have a single-year life span. Individuals showed primarily upstream migration between May to July, eleven recaptured individuals having moved upstream during this period. From August to October, almost all recaptured individuals were taken at the same sites, as before, 6-7 km from the river mouth, the species apparently not the migrating long distances at this time. Subsequently, all sculpins disappeared from the 6-7 km sites by December, sixteen individuals recaptured downstream.

UR - http://www.scopus.com/inward/record.url?scp=0010777594&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0010777594&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0010777594

VL - 46

SP - 31

EP - 37

JO - Ichthyological Research

JF - Ichthyological Research

SN - 1341-8998

IS - 1

ER -