...Aimee Ellison; Amara Pouv; Douglas A. Pace ABSTRACT Food-induced morphological plasticity, a type of developmental plasticity, is a well-documented phenomenon in larvae of the echinoid echinoderm, Dendraster excentricus . A recent study in our lab has shown that this morphological plasticity...

... in a situation reminiscent of long-term potentiation in learning and memory. Dendraster excentricus Hydrodynamics Larval settlement Sensory ecology Strongylocentrotus purpuratus Surf zone Fluid mixing and the turbulent processes that underlie it are known to influence organism performance...

... embryos of diverse invertebrates may therefore permit vertical migration in nature. I used turbulent and laminar shear flows to investigate: (1) the speed and direction of transport of non-motile and newly swimming stages of the echinoids Dendraster excentricus and Strongylocentrotus purpuratus...

... an alternative hypothesis that accessory structures play an important physical role in fertilization by increasing the size and buoyancy of the egg, making it a better target for sperm. In the sand dollar Dendraster excentricus , the jelly coat increases egg target size sixfold. At nonsaturating sperm...

... of metabolic rates were made with the coulometric respirometer during the complete life-span of larvae of three species (asteroid, Asterina miniata ; bivalve, Crassostrea gigas ; echinoid, Dendraster excentricus ). For these species, metabolic power equations had mass exponents near unity (0.9–1.1), showing...

... of the sand dollar Dendraster excentricus . Over an environmentally relevant, 10-degree drop in water temperature (22 to 12°C), swimming speed was reduced by approximately 40% and water movement was reduced by 35%. 40% of the decrease in swimming speed and 55% of the decrease in water movement were accounted...