Chthamalus proteus

General Impacts

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Regional Impacts

SP-XXI	None		Ecological Impact	Competition
The invasion of C. proteus in the Hawaiian Islands has coincided with reductions in abundance of the introduced barnacles Amphibalanus amphitrite and A. reticulatus. In experiments in which settling C. proteus were removed from fouling plates, numbers of settling A. reticulatus increased, but no A. amphitrite occurred on plates. The effect of competition with C. proteus is to compress the vertical distribution of A. reticulatus and exclude it from much of the intertidal zone through competition for space (Zabin et al. 2007). High densities of C. proteus also reduce densities of the native high intertidal limpet Siphonaria normalis in manipulative experiments (Zabin and Altieri 2007).
HI	Hawaii		Ecological Impact	Competition
The invasion of C. proteus in the Hawaiian Islands has coincided with reductions in abundance of the introduced barnacles Amphibalanus amphitrite and A. reticulatus. In experiments in which settling C. proteus were removed from fouling plates, numbers of settling A. reticulatus increased, but no A. amphitrite occurred on plates. The effect of competition with C. proteus is to compress the vertical distribution of A. reticulatus and exclude it from much of the intertidal zone through competition for space (Zabin et al. 2007). High densities of C. proteus also reduce densities of the native high intertidal limpet Siphonaria normalis in manipulative experiments (Zabin and Altieri 2007).

References

Ashton, G. V.; Davidson, I. C.; Geller, J.; Ruiz, G. M. (2016) Disentangling the biogeography of ship biofouling: barnacles in the Northeast Pacific, Global Ecology and Biogeography 25: 739;750

Campbell, Marnie L] ; Hewitt, Chad L.[ Miles, Joel (2016) Marine pests in paradise: capacity building, awareness raising and preliminary introduced species port survey results in the Republic of Palau, Biological Invasions 7(4): 351-363

Dando, P. R.; Southward, A.J. (1980) A new species of Chthamalus (Crustacea: Cirripedia) characterized by enzyme electrophoresis and shell morphology: with a revision of other species of Chthamalus from the Western shores of the Atlantic Ocean., Journal of the Marine Biological Association 60: 787-831

Demopoulos, Amanda W. J.; Smith, Craig R. (2010) Invasive mangroves alter macrofaunal community structure and facilitate opportunistic exotics, Marine Ecology Progress Series 404: 51-67

Farrapeira, Cristiane Maria Rocha (2010) Shallow water Cirripedia of the northeastern coast of Brazil: The impact of life history and invasion on biogeography, Journal of Experimental Marine Biology and Ecology 392: 210-219

Gonzalez, J. A.; Martin, L. Herrera, R.; Gonzalez Lorenzo, G.; Espino. F.; Barquin-Diez, J.; Southward, A.J. (2011) Cirripedia of the Canary Islands: distribution and ecological notes, Journal of the Marine Biological Association of the United Kingdom 92: 129-141

Paulay, Gustav; Kirkendale, Lisa; Lambert, Gretchen; Meyer, Chris (2002) Anthropogenic biotic interchange in a coral reef ecosystem: a case study from Guam, Pacific Science 56(2): 403-422

Paulay, Gustav; Ross, Arnold (2003) An annotated checklist of the shallow water Cirripedia of Guam, Micronesica 35-36: 303-314

Southward, A. J. (1975) Intertidal and shallow water Cirripedia of the Caribbean., Studies of the Fauna of Curacao and other Caribbean Islands 150: 1-153

Southward, A. J., Burton, R. S., Coles, S. L., Dando, P. R., DeFelice, R., Hoover, J., Parnell, P. E., Yamaguchi, T., Newman, W. A. (1998) Invasion of Hawaiian shores by an Atlantic barnacle, Marine Ecology Progress Series 165: 119-126

Zabin, Chela J. (2009) Battle of the barnacle newcomers: niche compression in invading species in Kaneohe Bay, Oahu, Hawaii, Marine Ecology Progress Series 381: 175-182

Zabin, Chela J. (2015) Patterns of adult abundance vary with recruitment of an invasive barnacle species on Oahu, Hawaii, Journal of Experimental Marine Biology and Ecology 464: 44-51

Zabin, Chela J.; Zardus, John; Pitombo, Fabio Bettini; Fread, Vanessa; Hadfield, Michael G. (2007) A tale of three seas: consistency of natural history traits in a Caribbean-Atlantic barnacle introduced to Hawaii., Biological Invasions 9: 523-544

Zabin, Chela J.; Altieri, Andrew (2007) A Hawaiian limpet facilitates recruitment of a competitively dominant invasive barnacle., Marine Ecologiy Progress Series 337: 175-185

Zabin, Chela; Hadfield, M. G. (2002) Do locals rule? Interactions between native intertidal animals and a Caribbean barnacle in Hawaii., Pacific Science 56(2): 235-236

Zardus, John D.; Hadfield, Michael G. (2005) Multiple origins and incursions of the Atlantic barnacle Chthamalus proteus in the Pacific., Molecular Ecology 14: 3719-3733

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