Tolerance of yolk sac and free-swimming fry of the zebra danio Brachydanio rerio, black tetra Gymnocorymbus ternetzi, Buenos Aires tetra Hemigrammus caudovittatus, and blue gourami Trichogaster trichopterus to therapeutic doses of formalin and sodium chloride

Daniel E Rothen, Eric W. Curtis, Roy P E Yanong

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The purpose of this study was to determine the tolerance of larval fish in the families Characidae, Cyprinidae, and Belontiidae to therapeutic doses of sodium chloride and formalin. Four species of fish were included in this study: zebra danio Brachydanio rerio (also known as Danio rerio), black tetra Gymnocorymbus ternetzi, Buenos Aires tetra Hemigrammus caudovittatus, and blue gourami (also known as threespot gourami) Trichogaster trichopterus. Representative species from each family for both yolk sac fry (2-3 d old) and free-swimming fry (5-7 d old) were tested. The treatments consisted of 1 or 3 g/L sodium chloride or 12.5 or 25 mg/L formalin. Mortalities at 24 and 48 h were compared. Although 12.5-25 mg/L of formalin appears to be safe for very young zebra danio fry, therapeutic doses of salt are not recommended. Yolk sac and free-swimming fry of the blue gourami are tolerant of therapeutic doses of salt (1-3 g/L) but very sensitive to formalin. Because there are significant differences in the tolerance of black tetras and albino Buenos Aires tetras to salt and formalin, neither treatment is recommended for use with the yolk sac and free-swimming fry of these species.

Original languageEnglish
Pages (from-to)204-208
Number of pages5
JournalJournal of Aquatic Animal Health
Volume14
Issue number3
DOIs
StatePublished - Sep 1 2002
Externally publishedYes

Fingerprint

Trichogaster trichopterus
Yolk Sac
yolk sac
Zebrafish
sodium chloride
fish fry
Danio rerio
formalin
Sodium Chloride
Characidae
Formaldehyde
tolerance
salt
therapeutics
dosage
Salts
salts
fish
Osphronemidae
Fishes

ASJC Scopus subject areas

  • Aquatic Science
  • veterinary(all)

Cite this

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title = "Tolerance of yolk sac and free-swimming fry of the zebra danio Brachydanio rerio, black tetra Gymnocorymbus ternetzi, Buenos Aires tetra Hemigrammus caudovittatus, and blue gourami Trichogaster trichopterus to therapeutic doses of formalin and sodium chloride",
abstract = "The purpose of this study was to determine the tolerance of larval fish in the families Characidae, Cyprinidae, and Belontiidae to therapeutic doses of sodium chloride and formalin. Four species of fish were included in this study: zebra danio Brachydanio rerio (also known as Danio rerio), black tetra Gymnocorymbus ternetzi, Buenos Aires tetra Hemigrammus caudovittatus, and blue gourami (also known as threespot gourami) Trichogaster trichopterus. Representative species from each family for both yolk sac fry (2-3 d old) and free-swimming fry (5-7 d old) were tested. The treatments consisted of 1 or 3 g/L sodium chloride or 12.5 or 25 mg/L formalin. Mortalities at 24 and 48 h were compared. Although 12.5-25 mg/L of formalin appears to be safe for very young zebra danio fry, therapeutic doses of salt are not recommended. Yolk sac and free-swimming fry of the blue gourami are tolerant of therapeutic doses of salt (1-3 g/L) but very sensitive to formalin. Because there are significant differences in the tolerance of black tetras and albino Buenos Aires tetras to salt and formalin, neither treatment is recommended for use with the yolk sac and free-swimming fry of these species.",
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