Occurrence of actinosporean stages of myxosporeans in an inflow brook of a salmon hatchery in the Mena River System, Hokkaido, Japan

C. Székely, Shigehiko Urawa, Hiroshi Yokoyama

Research output: Article

17 Citations (Scopus)

Abstract

Actinospore infection of oligochaetes living in the mud and on the roots of vegetation in an inflow brook of a Hokkaido salmon hatchery was studied within the framework of a Japanese-Hungarian research program. Two triactinomyxon types, 1 echinactinomyxon, and 1 neoactinomyxum type were isolated from the oligochaete Rhyacodrilus komarovi Timm, 1990 collected during the survey. The aurantiactinomyxons were recorded over a period of 3 mo starting from the day after oligochaete collection. The oligochaetes released actinospores for several weeks from the first day of the study. Spore excretion of individual oligochaetes was not synchronous. Of the oligochaetes examined, 0.7, 7, 3 and 3%, were infected with the echinactinomyxon, neoactinomyxum and the 2 types of triactinomyxon spores, respectively. Actinospore infection was intense in the positive oligochaetes in all 4 types. Of the 4 actinospore types presented here, 3 are described for the first time.

Original languageEnglish
Pages (from-to)153-160
Number of pages8
JournalDiseases of Aquatic Organisms
Volume49
Issue number2
Publication statusPublished - máj. 10 2002

Fingerprint

Oligochaeta
hatchery
hatcheries
river system
salmon
spore
inflow
Japan
rivers
excretion
research program
mud
vegetation
spores
brook
infection
research programs

ASJC Scopus subject areas

  • Aquatic Science
  • Ecology

Cite this

@article{8f027806d45941db89f14488d1f0bb6b,
title = "Occurrence of actinosporean stages of myxosporeans in an inflow brook of a salmon hatchery in the Mena River System, Hokkaido, Japan",
abstract = "Actinospore infection of oligochaetes living in the mud and on the roots of vegetation in an inflow brook of a Hokkaido salmon hatchery was studied within the framework of a Japanese-Hungarian research program. Two triactinomyxon types, 1 echinactinomyxon, and 1 neoactinomyxum type were isolated from the oligochaete Rhyacodrilus komarovi Timm, 1990 collected during the survey. The aurantiactinomyxons were recorded over a period of 3 mo starting from the day after oligochaete collection. The oligochaetes released actinospores for several weeks from the first day of the study. Spore excretion of individual oligochaetes was not synchronous. Of the oligochaetes examined, 0.7, 7, 3 and 3{\%}, were infected with the echinactinomyxon, neoactinomyxum and the 2 types of triactinomyxon spores, respectively. Actinospore infection was intense in the positive oligochaetes in all 4 types. Of the 4 actinospore types presented here, 3 are described for the first time.",
keywords = "Actinosporean, Hokkaido, Japan, Myxosporean, Oligochaete, Salmon hatchery",
author = "C. Sz{\'e}kely and Shigehiko Urawa and Hiroshi Yokoyama",
year = "2002",
month = "5",
day = "10",
language = "English",
volume = "49",
pages = "153--160",
journal = "Diseases of Aquatic Organisms",
issn = "0177-5103",
publisher = "Inter-Research",
number = "2",

}

TY - JOUR

T1 - Occurrence of actinosporean stages of myxosporeans in an inflow brook of a salmon hatchery in the Mena River System, Hokkaido, Japan

AU - Székely, C.

AU - Urawa, Shigehiko

AU - Yokoyama, Hiroshi

PY - 2002/5/10

Y1 - 2002/5/10

N2 - Actinospore infection of oligochaetes living in the mud and on the roots of vegetation in an inflow brook of a Hokkaido salmon hatchery was studied within the framework of a Japanese-Hungarian research program. Two triactinomyxon types, 1 echinactinomyxon, and 1 neoactinomyxum type were isolated from the oligochaete Rhyacodrilus komarovi Timm, 1990 collected during the survey. The aurantiactinomyxons were recorded over a period of 3 mo starting from the day after oligochaete collection. The oligochaetes released actinospores for several weeks from the first day of the study. Spore excretion of individual oligochaetes was not synchronous. Of the oligochaetes examined, 0.7, 7, 3 and 3%, were infected with the echinactinomyxon, neoactinomyxum and the 2 types of triactinomyxon spores, respectively. Actinospore infection was intense in the positive oligochaetes in all 4 types. Of the 4 actinospore types presented here, 3 are described for the first time.

AB - Actinospore infection of oligochaetes living in the mud and on the roots of vegetation in an inflow brook of a Hokkaido salmon hatchery was studied within the framework of a Japanese-Hungarian research program. Two triactinomyxon types, 1 echinactinomyxon, and 1 neoactinomyxum type were isolated from the oligochaete Rhyacodrilus komarovi Timm, 1990 collected during the survey. The aurantiactinomyxons were recorded over a period of 3 mo starting from the day after oligochaete collection. The oligochaetes released actinospores for several weeks from the first day of the study. Spore excretion of individual oligochaetes was not synchronous. Of the oligochaetes examined, 0.7, 7, 3 and 3%, were infected with the echinactinomyxon, neoactinomyxum and the 2 types of triactinomyxon spores, respectively. Actinospore infection was intense in the positive oligochaetes in all 4 types. Of the 4 actinospore types presented here, 3 are described for the first time.

KW - Actinosporean

KW - Hokkaido

KW - Japan

KW - Myxosporean

KW - Oligochaete

KW - Salmon hatchery

UR - http://www.scopus.com/inward/record.url?scp=0037052284&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0037052284&partnerID=8YFLogxK

M3 - Article

C2 - 12078984

AN - SCOPUS:0037052284

VL - 49

SP - 153

EP - 160

JO - Diseases of Aquatic Organisms

JF - Diseases of Aquatic Organisms

SN - 0177-5103

IS - 2

ER -