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Article: Effect of food concentration on protein and carbohydrate production during larval development of the sea urchin Lytechinus variegatus.(Report)
- Article from:
- Journal of Shellfish Research
- Article date:
- December 1, 2007
- Author:
CopyrightCOPYRIGHT 2007 National Shellfisheries Association, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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ABSTRACT Changes in protein and carbohydrate content during larval development of Lytechinus variegatus were measured under two diet conditions, low concentration (600 algal cells [ml.sup.-1] [day.sup.-1]) and high concentration (6,000 algal cells [ml.sup.-1] [day.sup.-1]) to determine the larval stage at which these proximate constituents showed significant changes under different conditions of food availability. In terms of morphology, larvae under the high concentration diet developed fully and metamorphosed after 30 days, whereas under the low concentration diet, some larvae developed up to the 4 arm stage, and some ceased to develop at the 8 arm stage. No significant ...