Effects of Different Salinities on Growth, Body Composition, Oxygen Consumption Rate, and Ammonia Excretion Rate in American shad (Alosa sapidissima) Juveniles
Date
2019
Contributor
Advisor
Department
Instructor
Depositor
Speaker
Researcher
Consultant
Interviewer
Narrator
Transcriber
Annotator
Journal Title
Journal ISSN
Volume Title
Publisher
The Israeli Journal of Aquaculture - Bamidgeh
Volume
Number/Issue
Starting Page
Ending Page
Alternative Title
Abstract
A laboratory experiment was undertaken to analyze the effects of salinity on growth, body composition, oxygen consumption, and ammonia excretion of anadromous American shad (Alosa sapidissima) juveniles. Results showed the best survival rate occurred at 5‰ and 15‰. The relative weight gain and the specific growth rate declined as salinity increased. However, feed conversion rate increased with increasing salinity. Oxygen consumption rates showed a parabolic relationship in relation to salinity. From the quadratic relationship (y= -0.0004x2+0.0166x+0.319; R2=0.801; P<0.05), the highest oxygen consumption rate occurred at a salinity of 20.75‰. The ammonia excretion ratio decreased significantly as salinity increased from 10‰ to 15‰. No further differences were observed in salinities ranging from 15‰ to 40‰. There were no significant influences of salinity on whole body protein and moisture content. Lipid content declined as salinity increased. Results indicate that an appropriate increase in salinity was beneficial to the culture of American shad juveniles. The optimal salinity for American shad juveniles ranged from 15‰ to 20‰.
Description
Keywords
salinity, American shad, growth, body composition, oxygen consumption rate, ammonia excretion rate
Citation
Extent
8 pages
Format
Geographic Location
Time Period
Related To
Related To (URI)
Table of Contents
Rights
Rights Holder
Local Contexts
Collections
Email libraryada-l@lists.hawaii.edu if you need this content in ADA-compliant format.