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Ecology of juvenile green sea urchins (Strongylocentrotus droebachiensis) at an urchin dominated sublittoral site in eastern Newfoundland
| Content Provider | Scilit |
|---|---|
| Author | Keats, D. W. South, G. R. Steele, D. H. |
| Copyright Year | 2020 |
| Description | Urchin population structure was examined over a period of 5 y at an urchin dominated site in eastern Newfoundland, in relation to depth, inter-annual variation, and microhabitat. The distribution of juveniles was the main focus of the study. Juvenile urchin density was low in the two zones with abundant macroalgae (0-2m and > 12m below MLW), and highest in the barrens which occur at intermediate depths. Juvenile urchins were abundant during 1979-1980, but declined over the period from 1981-1983. There is evidence for high predation rates on juveniles. Nevertheless, by inhabiting cryptic micro-habitat beneath undercut corallines and among the uprights of Lithothamnion glaciale, enough survive to maintain the dense population of large urchins, whose grazing maintains the barrens. Book Name: Echinodermata |
| Related Links | https://content.taylorfrancis.com/books/download?dac=C2010-0-35007-2&isbn=9781003079224&doi=10.1201/9781003079224-55&format=pdf |
| Ending Page | 302 |
| Page Count | 8 |
| Starting Page | 295 |
| DOI | 10.1201/9781003079224-55 |
| Language | English |
| Publisher | Informa UK Limited |
| Publisher Date | 2020-08-13 |
| Access Restriction | Open |
| Subject Keyword | Book Name: Echinodermata Marine and Freshwater Biology Structure Survive Abundant Urchins Eastern Newfoundland Barrens Juvenile Urchin |
| Content Type | Text |
| Resource Type | Chapter |
