Document of bibliographic reference 215685

BibliographicReference record

Type

Bibliographic resource

Type of document

Journal article

BibLvlCode

AS

Title

Subtidal algal colonization following the removal of Echinus

Abstract

1. On the seaward face of Port Erin breakwater large algae do not occur on the lowest three metres. Here the density ofEchinus esculentus is high.2. Over a three year period allEchinus were removed from a 10 m wide strip at about monthly intervals. The total number of individuals removed approached 3000.3. One year after initial clearance the mean density ofLaminaria hyperborea sporelings on the strip was 22.7/m2 and 5.1/m2 to one side of it. By the winter these had almost disappeared outside the strip and in the succeeding years second and third year plants were found only on the strip or close to its edge. Other algae were similarly affected.4. It is concluded that the lower limit ofL. hyperborea is determined at least in part by the grazing pressure ofEchinus and that the urchins exercise some control over the numbers of other algae.

WebOfScience code

https://www.webofscience.com/wos/woscc/full-record/WOS:A19679802400070

Bibliographic citation

Jones, N.S.; Kain, J.M. (1967). Subtidal algal colonization following the removal of Echinus. Helgol. Wiss. Meeresunters. 15(1-4): 460-466. https://dx.doi.org/10.1007/BF01618642

Topic

Marine

Is peer reviewed

true