The Settlement, Recruitment, and Early Growth and Mortality of the Purple Sea Urchin, Strongylocentrotus Purpuratus, and the Red Sea Urchin, S. Franciscanus, in a Kelp Bed and Urchin Barren Ground |
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Page 58
... sea urchins . Any sea urchins found were identified to species and measured using an optical micrometer with 19.6 μm ... Purple sea urchins were found in considerably higher densities than red sea urchins , so most of my analyses and ...
... sea urchins . Any sea urchins found were identified to species and measured using an optical micrometer with 19.6 μm ... Purple sea urchins were found in considerably higher densities than red sea urchins , so most of my analyses and ...
Page 64
Robert James Rowley. Growth in the Laboratory In the laboratory , purple sea urchins grew at a rate of 0.29- 0.45 mm / month on all substrata over the first 50 days , with no significant differences in growth between treatments ( Fig . 5 ...
Robert James Rowley. Growth in the Laboratory In the laboratory , purple sea urchins grew at a rate of 0.29- 0.45 mm / month on all substrata over the first 50 days , with no significant differences in growth between treatments ( Fig . 5 ...
Page 92
... purple sea urchin size at year 1 have ranged from 16.5 mm based on the smallest peak in a size - frequency graph ( Ebert , 1967 ) , to 25 mm based on extrapolation of Ebert's ( 1977 ) estimate of growth of larger sea urchins ( Tegner ...
... purple sea urchin size at year 1 have ranged from 16.5 mm based on the smallest peak in a size - frequency graph ( Ebert , 1967 ) , to 25 mm based on extrapolation of Ebert's ( 1977 ) estimate of growth of larger sea urchins ( Tegner ...
Contents
Settlement and Recruitment 446 | 4 |
Growth and Mortality 4799 | 47 |
Competition between newly settled 102114 | 102 |
Copyright | |
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algal turf substrata ANOVA barrens and kelp-bed barrens habitats bed and barrens benthic California Coal Oil Point Connell crustose coralline algae Ebeling Ebert Echinoderm Ecology estimates fauna field fleshy algae Gobiesox growth and mortality growth of newly growth rates high density invertebrates June kelp bed kelp forests kelp-bed and barrens kelp-bed habitats larvae larval settlement low density Macrocystis magnesium chloride Marine Biology measured metamorphosis microbial film minute no urchins mortality of newly Naples Reef natural densities natural substrata newly settled individuals newly settled purple newly settled sea newly settled sea-urchins newly settled Strongylocentrotus newly settled urchins patterns predators purple sea urchins rearing recruitment red algal red algal turf red sea urchins red urchins replicates rock Santa Barbara sea urchins Strongylocentrotus seawater settled sea urchins similar Size-frequency histograms small sea urchins small urchins Strongylocentrotus purpuratus studies substratum Tegner and Dayton test diameter tetracycline tetracycline marking total number variability