Experimental evidence that Fucus vesiculosus (Phaeophyta) controls filamentous algae by means of the whiplash effect
Open Access
- 1 February 1996
- journal article
- research article
- Published by Informa UK Limited in European Journal of Phycology
- Vol. 31 (1), 61-66
- https://doi.org/10.1080/09670269600651201
Abstract
Fucus vesiculosus is the only large perennial algal species in the tideless and brackish northern Baltic Sea. It is often covered by a thick layer of filamentous algae which may have a negative effect on Fucus. Most of these epiphytic species also grow on rock surfaces and are thus facultative epiphytes. A field experiment demonstrated that Fucus controls the amount of these fast-growing and invasive filamentous species by means of the so-called whiplash effect, i.e. removing them through wave-induced thallus movements. Each experimental unit consisted of two permanent sample plots, one in which Fucus had been completely removed and the other as control. The amount of filamentous algae was monitored for 5 months, May–October, using a modified coverage estimation method. In addition to the estimated area covered by a species, the average height of its canopy was measured. A new unit of measurement, species volume (= area × height), is introduced together with biomass comparisons. On exposed shores, Fucus does control the volume of filamentous algae, but on sheltered shores its effect is negligible. The whiplash effect offers a plausible explanation for differences in the decline of Fucus in the northern Baltic observed between exposed and sheltered sites.Keywords
This publication has 18 references indexed in Scilit:
- Dots on the rocks: a comparison of percent cover estimation methodsJournal of Experimental Marine Biology and Ecology, 1992
- Canopy removal experiments in Cystoseira-dominated rockpools from the Western coast of the Mediterranean (Ligurian Sea)Journal of Experimental Marine Biology and Ecology, 1992
- Physical disturbances in an Australian kelp community. I. Temporal effectsMarine Ecology Progress Series, 1987
- Decreased depth penetration of Fucus vesicolosus (L.) since the 1940's indicates eutrophication of the Baltic SeaMarine Ecology Progress Series, 1986
- On the Prevalence and Relative Importance of Interspecific Competition: Evidence from Field ExperimentsThe American Naturalist, 1983
- EFFECTS OF GRAZERS AND ALGAL COMPETITORS ON FUCOID COLONIZATION IN TIDE POOLS1Journal of Phycology, 1982
- The Evolution of Thallus Form and Survival Strategies in Benthic Marine Macroalgae: Field and Laboratory Tests of a Functional Form ModelThe American Naturalist, 1980
- Experimental Evaluation of Ecological Dominance in a Rocky Intertidal Algal CommunityEcological Monographs, 1975
- ALGAL INHIBITION BY YELLOW ULTRAVIOLET-ABSORBING SUBSTANCES FROM FUCUS VESICULOSUSCanadian Journal of Botany, 1964
- The Influence of Interspecific Competition and Other Factors on the Distribution of the Barnacle Chthamalus StellatusEcology, 1961