Notes: Survival and Continued Normal Development of Fish Embryos after Incubation at Reduced Temperatures

Autor: J. G. Cloud, A. L. Erdahl, E. F. Graham
Rok vydání: 1988
Předmět:
Zdroj: Transactions of the American Fisheries Society. 117:503-506
ISSN: 1548-8659
0002-8487
DOI: 10.1577/1548-8659(1988)117<0503:nsacnd>2.3.co;2
Popis: The tolerance of fathead minnow Pimephales promelas embryos to cooling depended upon developmental stage; late blastulae and gastrulae were more tolerant of cooling to 0–5°C from 23°C than were early blastulae. Survival of embryos or their ability to continue development was reduced as temperature declined to 0°C and length of exposure to cold temperatures increased. Embryos survived better after cooling if they were maintained in full-strength fish Ringer's solution than if they were kept in 10% fish Ringer's solution or in 10% fish Ringer's solution with 0.2 M glucose. Embryo survival was greatest when gastrulae were held in 100% fish Ringer's at 10°C, a temperature at which development was slowed but not stopped.
Databáze: OpenAIRE