The effects of algae species and densities on the population growth of the marine rotifer, Colurella dicentra [An article from: Journal of Experimental Marine Biology and Ecology]

This digital document is a journal article from Journal of Experimental Marine Biology and Ecology, published by Elsevier in 2006. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.

Description:
Colurella dicentra clones isolated from bay water in the Mississippi Gulf Coast were cultured with artificial seawater. Experiments were conducted to determine the effects of six algae species (Nannochloropsis oculata, Tetraselmis chuii, Chaetoceros gracilis, Rhodomonas salina, Isochrysis galbana, and Prorocentrum micans), six C. gracilis densities, and six N. oculata densities (25,000, 50,000, 100,000, 250,000, 500,000, and 1,000,000 cells ml^-^1) on C. dicentra population growth. Algae type influenced rotifer production (p0.05).The population growth rate (r) varied with algae species treatment. The highest values were recorded for C. gracilis treatment (0.22 to 0.26 d^-^1), followed by N. oculata (0.21 to 0.24 d^-^1), and the lowest for P. micans (-0.19 to 0.14 d^-^1). C. gracilis and N. oculata densities had significant effects (p