Becker, J. A., et al. “Effect of Water Temperature and Flow Rate on the Transmission of Microsporidial Gill Disease Caused by Loma Salmonae in Rainbow Trout Oncorhynchus Mykiss”. Fish Pathology, vol. 38, no. 3, 2003, pp. 105-12, https://scholar2.islandarchives.ca/islandora/object/ir%3Air-batch6-2233.

Genre

  • Journal Article
Contributors
Author: Becker, J. A.
Author: Speare, David J.
Author: Dohoo, Ian R.
Date Issued
2003
Abstract

Two studies were designed to quantify the effect of water temperature and flow rate on the transmission potential of the important salmonid gill pathogen, Loma salmonae. Using survival analysis, increased water temperature and low flow rates were determined as risk factors for the transmission of microsporidial gill disease caused by L. salmonae in rainbow trout Oncorhynchus mykiss. Fish were experimentally infected with L. salmonae via a cohabitation exposure model and monitored for the development of branchial xenomas. On any given day, fish held at 11degreesC and 15degreesC had a hazard ratio equal to 0.80 and 0.68, respectively, for the development of branchial xenomas compared with fish held at 19degreesC. From the flow rate trial, fish housed in a low flow tank (0.83 L/min) had an increased chance of developing branchial xenomas when compared to fish in tanks at normal (1.67 L/min) and high (2.5 L/min) flow rates with hazard ratios reported as 0.69.

Note

Univ Prince Edward Isl, Atlantic Vet Coll, Charlottetown, PE C1A 4P5, Canada.; Becker, JA, Univ Prince Edward Isl, Atlantic Vet Coll, Charlottetown, PE C1A 4P5, Canada.; jbecker@upei.ca

TOKYO; UNIV TOKYO YAY01 1-1-1 BUNKYO-KU, TOKYO, 113, JAPAN

JAPAN SOC FISH PATHOL DEPT FISHERIES-FAC AGR

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Source type: Electronic(1)

Language

  • English

Subjects

  • Survival Analysis
  • CHINOOK SALMON
  • flow rate
  • rainbow trout
  • MODEL
  • Disease Management
  • Loma salmonae
  • Fisheries
  • hazard function
  • Oncorhynchus mykiss
  • Veterinary Sciences
  • growth
  • TEMPERATURE
  • FISH POPULATIONS
  • WALBAUM
Page range
105-112
Host Title
Fish Pathology
Host Abbreviated Title
Fish Pathol.
Volume
38
Issue
3
ISSN
0388-788X

Department