National Oceanic and Atmospheric Administration

• Main Authors: Gail H Thellacker, Amy, S Kimball
• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Subjects: In studi; Copepods; Rotifer
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.559.2304; http://swfsc.noaa.gov/publications/cr/1984/8491.pdf

The rotifer Bri~eliioriit.s pliccitilis and the copepod Ti,yriop.s ccilifornicus are easily cultured and coni-inonly used as foods for larval fishes. Sizes of rotifers, nauplii. and copepodites. ranging in width from 75 to 221 p m. were related to their weight. volume, and caloric content. Between the smallest and largest size classes-a width increase of two times-rotifer dry weight increased from 0.10 to 0.47 Fgianimal. and naupliar dry weight increased from 0.04 to 0.38 pgi animal. An individual rotifer contained more calories than a nauplius of the same width even though the oryanic tissue fraction of the rotifers had a lower caloric value (4.8 cal img) than that of the copepods (5.9 calimg). Tigriopus nauplii weighed less per unit