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Type: Journal article
Title: Effect of vessel voyage speed on survival of biofouling organisms: implications for translocation of non-indigenous marine species
Author: Coutts, A.
Piola, R.
Hewitt, C.
Connell, S.
Gardner, J.
Citation: Biofouling, 2010; 26(1):1-13
Publisher: Taylor & Francis Ltd
Issue Date: 2010
ISSN: 0892-7014
Statement of
Ashley D. M. Coutts, Chad L. Hewitt, Sean D. Connell and Jonathan P. A. Gardnerd
Abstract: This study experimentally determined the effect of different vessel voyage speeds (5, 10 and 18 knots = 2.6, 5.1 and 9.3 ms-1, respectively) and morphological characteristics including growth form (solitary or colonial), profile (erect or encrusting) and structure (soft, hard or flexible) on the survival of a range of common biofouling organisms. A custom built hydrodynamic keel attached to the bottom of a 6 m aluminium powerboat was used to subject pre-fouled settlement plates for this purpose. Vessel speeds of 5 and 10 knots had little effect on the species richness of biofouling assemblages tested, however richness decreased by 50% following 18 knots treatments. Species percentage cover decreased with increasing speed across all speed treatments and this decrease was most pronounced at 10 and 18 knots, with cover reduced by 24 and 85% respectively. Survival was greatest for organisms with colonial, encrusting, hard and/or flexible morphological characteristics, and this effect increased with increasing speed. This study suggests that there is predictive power in forecasting future introductions if we can understand the extent to which such traits explain the world-wide distributions of non-indigenous species. Future introductions are a certainty and can only provide an increasing source of new information on which to test the validity of these predications.
Keywords: biofouling organisms; hydrodynamic flow; morphology; non-indigenous marine species; translocation; vessel voyage speed
Rights: (c) 2010 Taylor & Francis
RMID: 0020093347
DOI: 10.1080/08927010903174599
Appears in Collections:Earth and Environmental Sciences publications
Environment Institute Leaders publications

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