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United States Department of Agriculture

Agricultural Research Service

Title: The Effects of Day Length and Weather on the Development of Small Zooplankton in Sunshine Bass Fry Ponds.

Author
item Ludwig, Gerald

Submitted to: Book of Abstracts World Aquaculture Society
Publication Type: Abstract Only
Publication Acceptance Date: May 26, 1999
Publication Date: May 27, 1999
Citation: LUDWIG, G.M. THE EFFECTS OF DAY LENGTH AND WEATHER ON THE DEVELOPMENT OF SMALL ZOOPLANKTON IN SUNSHINE BASS FRY PONDS.. BOOK OF ABSTRACTS WORLD AQUACULTURE SOCIETY. 1999. p.105.

Technical Abstract: Correlation and regression relationships between water and air temperatures, day length, dissolved oxygen, rain amount and number of rain days and the amount of days that it took for rotifers and copepod nauplii to reach an initial peak in population density in freshly filled sunshine bass (Morone chrysops X M. saxatilis) fry ponds were determined. For rotifers, day length, dissolved oxygen, and water and air temperatures were closely related to the amount of time to the peak but not with the concentration of rotifers present at that time. The temporal development of the initial peak for copepod nauplii was most closely associated with the number of days of rain that occurred before the peak developed while the concentration of nauplii at the time of the peak appeared to be related to day length, dissolved oxygen levels and, to a lesser degree, water and air temperatures.

Last Modified: 4/16/2014
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