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Advances in the aquatic sciences
RESEARCH ARTICLE

Spatial and temporal dynamics of the overwater structure fouling community in southern California

Adam K. Obaza A B D and Jonathan P. Williams C
+ Author Affiliations
- Author Affiliations

A Ocean Associates, Inc., 4007 North Abingdon Street, Arlington, VA 22207, USA.

B Paua Marine Research Group, 4745 Del Monte Avenue, San Diego, CA 92107, USA.

C Vantuna Research Group, Biology Department, Occidental College, 1600 Campus Road, Los Angeles, CA 90041, USA.

D Corresponding author. Present address: 707 East Ocean Boulevard, Long Beach, CA 90802, USA. Email: adam@pauamarineresearch.com

Marine and Freshwater Research 69(11) 1771-1783 https://doi.org/10.1071/MF18083
Submitted: 6 March 2018  Accepted: 9 May 2018   Published: 20 August 2018

Abstract

Overwater structures within coastal estuaries are novel habitats that may facilitate the introduction and spread of non-native fouling organisms, although permitting agencies lack quantitative data to develop mitigation measures. To explore this habitat impact, abundance (percentage cover) and community composition of fouling communities were examined over space and time, using photoquadrats on floating docks. Floating dock pontoons within 12 bays and harbours were sampled throughout southern California to document spatial patterns in non-native species. To evaluate community development on newly available substrate, dock floats within Alamitos Bay were sampled quarterly for 1 year following removal of fouling organisms. Percentage coverage of non-native species was greater than coverage of native or cryptogenic species both underneath and along the sides of structures in outer and inner bay areas of embayments and community composition varied significantly among sampling locations. The percentage cover of non-native species and community composition in cleared floats rapidly converged on those of uncleared control floats, suggesting that seasonal dynamics are a strong driver of non-native species colonisation. Quantification of these dynamics could serve as a starting point in the development of mitigation measures and highlights the importance of evaluating all possible impacts from coastal development projects during the permitting process.

Additional keywords: biological invasion, estuary, fouling, marina.


References

Ackerman, D., and Schiff, K. (2003). Modeling storm water mass emissions to the Southern California Bight. Journal of Environmental Engineering 129, 308–317.
Modeling storm water mass emissions to the Southern California Bight.Crossref | GoogleScholarGoogle Scholar |

Airoldi, L., Turon, X., Perkol-Finkel, S., and Rius, M. (2015). Corridors for aliens but not for natives: effects of marine urban sprawl at a regional scale. Diversity & Distributions 21, 755–768.
Corridors for aliens but not for natives: effects of marine urban sprawl at a regional scale.Crossref | GoogleScholarGoogle Scholar |

Altman, A., and Whitlatch, R. B. (2007). Effects of small-scale disturbance on invasion success in marine communities. Journal of Experimental Marine Biology and Ecology 342, 15–29.
Effects of small-scale disturbance on invasion success in marine communities.Crossref | GoogleScholarGoogle Scholar |

Bates, W. R. (2005). Environmental factors affecting reproduction and development in ascidians and other protochordates. Canadian Journal of Zoology 83, 51–61.
Environmental factors affecting reproduction and development in ascidians and other protochordates.Crossref | GoogleScholarGoogle Scholar |

Bullard, S. G., Lambert, G., Carman, M. R., Byrnes, J., Whitlatch, R. B., Ruiz, G., Miller, R. J., Harris, L., Valentine, P. C., Collie, J. S., Pederson, J., McNaught, D. C., Cohen, A. N., Asch, R. G., Dijkstra, J., and Heinonen, K. (2007). The colonial ascidian Didemnum sp. A: current distribution, basic biology and potential threat to marine communities of the northeast and west coasts of North America. Journal of Experimental Marine Biology and Ecology 342, 99–108.
The colonial ascidian Didemnum sp. A: current distribution, basic biology and potential threat to marine communities of the northeast and west coasts of North America.Crossref | GoogleScholarGoogle Scholar |

Byrnes, J., and Stachowicz, J. J. (2009). Short and long term consequences of increases in exotic species richness on water filtration by marine invertebrates. Ecology Letters 12, 830–841.
Short and long term consequences of increases in exotic species richness on water filtration by marine invertebrates.Crossref | GoogleScholarGoogle Scholar |

Carlton, J. T. (1989). Man’s role in changing the face of the ocean: biological invasions and implications for conservation of near-shore environments. Conservation Biology 3, 265–273.
Man’s role in changing the face of the ocean: biological invasions and implications for conservation of near-shore environments.Crossref | GoogleScholarGoogle Scholar |

Carlton, J. T., and Geller, J. B. (1993). Ecological roulette: the global transport of nonindigenous marine organisms. Science 261, 78–82.
Ecological roulette: the global transport of nonindigenous marine organisms.Crossref | GoogleScholarGoogle Scholar |

Carman, M. R., and Grunden, D. W. (2010). First occurrence of the invasive tunicate Didemnum vexillum in eelgrass habitat. Aquatic Invasions 5, 23–29.
First occurrence of the invasive tunicate Didemnum vexillum in eelgrass habitat.Crossref | GoogleScholarGoogle Scholar |

Castilla, J. C. (1999). Coastal marine communities: trends and perspectives from human-exclusion experiments. Trends in Ecology & Evolution 14, 280–283.
Coastal marine communities: trends and perspectives from human-exclusion experiments.Crossref | GoogleScholarGoogle Scholar |

Cifuentes, M., Krueger, I., Dumont, C. P., Lenz, M., and Thiel, M. (2010). Does primary colonization or community structure determine the succession of fouling communities? Journal of Experimental Marine Biology and Ecology 395, 10–20.
Does primary colonization or community structure determine the succession of fouling communities?Crossref | GoogleScholarGoogle Scholar |

Clarke Murray, C., Pakhomov, E. A., and Therriault, T. W. (2011). Recreational boating: a large unregulated vector transporting marine invasive species. Diversity & Distributions 17, 1161–1172.
Recreational boating: a large unregulated vector transporting marine invasive species.Crossref | GoogleScholarGoogle Scholar |

Clarke Murray, C., Therriault, T. W., and Martone, P. T. (2012). Adapted for invasion? Comparing attachment, drag and dislodgment of native and nonindigenous hull fouling species. Biological Invasions 14, 1651–1663.
Adapted for invasion? Comparing attachment, drag and dislodgment of native and nonindigenous hull fouling species.Crossref | GoogleScholarGoogle Scholar |

Cohen, A. N., Harris, L. H., Bingham, B. L., Carlton, J. T., Chapman, J. W., Lambert, C. C., Lambert, G., Ljubenkov, J. C., Murray, S. N., Rao, L. C., Reardon, K., and Schwindt, E. (2005). Rapid assessment survey for exotic organisms in southern California bays and harbors and abundance in port and non-port areas. Biological Invasions 7, 995–1002.
Rapid assessment survey for exotic organisms in southern California bays and harbors and abundance in port and non-port areas.Crossref | GoogleScholarGoogle Scholar |

Comeau, L. A., Filgueira, R., Guyondet, T., and Sonier, R. (2015). The impact of invasive tunicates on the demand for phytoplankton in longline mussel farms. Aquaculture 441, 95–105.
The impact of invasive tunicates on the demand for phytoplankton in longline mussel farms.Crossref | GoogleScholarGoogle Scholar |

Crooks, J. A., Change, A. L., and Ruiz, G. M. (2011). Aquatic pollution increases the relative success of invasive species. Biological Invasions 13, 165–176.
Aquatic pollution increases the relative success of invasive species.Crossref | GoogleScholarGoogle Scholar |

Daigle, R. M., and Herbinger, C. M. (2009). Ecological interactions between the vase tunicate (Ciona intestinalis) and the farmed blue mussel (Mytilus edulis) in Nova Scotia, Canada. Aquatic Invasions 4, 177–187.
Ecological interactions between the vase tunicate (Ciona intestinalis) and the farmed blue mussel (Mytilus edulis) in Nova Scotia, Canada.Crossref | GoogleScholarGoogle Scholar |

Darbyson, E., Locke, A., Hanson, J. M., and Martin Willison, J. H. (2009). Marine boating habitats and the potential for spread of invasive species in the Gulf of St Lawrence. Aquatic Invasions 4, 87–94.
Marine boating habitats and the potential for spread of invasive species in the Gulf of St Lawrence.Crossref | GoogleScholarGoogle Scholar |

Davenport, J., and Davenport, J. L. (2006). The impact of tourism and personal leisure transport on coastal environments: a review. Estuarine, Coastal and Shelf Science 67, 280–292.
The impact of tourism and personal leisure transport on coastal environments: a review.Crossref | GoogleScholarGoogle Scholar |

Dumont, C. P., Harris, L. G., and Gaymer, C. F. (2011). Anthropogenic structures as a spatial refuge from predation for the invasive bryozoan Bugula neritina. Marine Ecology Progress Series 427, 95–103.
Anthropogenic structures as a spatial refuge from predation for the invasive bryozoan Bugula neritina.Crossref | GoogleScholarGoogle Scholar |

Floerl, O., and Inglis, G. J. (2003). Boat harbor design can exacerbate hull fouling. Austral Ecology 28, 116–127.
Boat harbor design can exacerbate hull fouling.Crossref | GoogleScholarGoogle Scholar |

Floerl, O., Inglis, G. J., and Marsh, H. M. (2005). Selectivity in vector management: an investigation of the effectiveness of measures used to prevent transport of non-indigenous species. Biological Invasions 7, 459–475.
Selectivity in vector management: an investigation of the effectiveness of measures used to prevent transport of non-indigenous species.Crossref | GoogleScholarGoogle Scholar |

Glasby, T. M. (1998). Estimating spatial variability in developing assemblages of epibiota on subtidal hard substrata. Marine and Freshwater Research 49, 429–437.
Estimating spatial variability in developing assemblages of epibiota on subtidal hard substrata.Crossref | GoogleScholarGoogle Scholar |

Glasby, T. M., Connell, S. D., Holloway, M. G., and Hewitt, C. L. (2007). Nonindigenous biota on artificial structures: could habitat creation facilitate biological invasions? Marine Biology 151, 887–895.
Nonindigenous biota on artificial structures: could habitat creation facilitate biological invasions?Crossref | GoogleScholarGoogle Scholar |

Gordon, D. R. (1998). Effects of invasive, non-indigenous plant species on ecosystem processes: lessons from Florida. Ecological Applications 8, 975–989.
Effects of invasive, non-indigenous plant species on ecosystem processes: lessons from Florida.Crossref | GoogleScholarGoogle Scholar |

Hejda, M., and Pysek, P. (2006). What is the impact of Impatiens glandulifera on species diversity of invaded riparian vegetation? Biological Conservation 132, 143–152.
What is the impact of Impatiens glandulifera on species diversity of invaded riparian vegetation?Crossref | GoogleScholarGoogle Scholar |

Howes, S., Herbinger, C. M., Darnell, P., and Vercaemer, B. (2007). Spatial and temporal patterns of recruitment of the tunicate Ciona intestinalis on a mussel farm in Nova Scotia, Canada. Journal of Experimental Marine Biology and Ecology 342, 85–92.
Spatial and temporal patterns of recruitment of the tunicate Ciona intestinalis on a mussel farm in Nova Scotia, Canada.Crossref | GoogleScholarGoogle Scholar |

Jewett, E. B., Hines, A. H., and Ruiz, G. M. (2005). Epifaunal disturbance by periodic low levels of dissolved oxygen: native vs. invasive species response. Marine Ecology Progress Series 304, 31–44.
Epifaunal disturbance by periodic low levels of dissolved oxygen: native vs. invasive species response.Crossref | GoogleScholarGoogle Scholar |

Judge, M. L., and Craig, S. F. (1997). Positive flow dependence in the initial colonization of a fouling community: results from in situ water current manipulations. Journal of Experimental Marine Biology and Ecology 210, 209–222.
Positive flow dependence in the initial colonization of a fouling community: results from in situ water current manipulations.Crossref | GoogleScholarGoogle Scholar |

Kamer, K., Boyle, K. A., and Fong, P. (2001). Macroalgae bloom dynamics in a highly eutrophic southern California estuary. Estuaries 24, 623–635.
Macroalgae bloom dynamics in a highly eutrophic southern California estuary.Crossref | GoogleScholarGoogle Scholar |

Kanary, L., Locke, A., Watmough, J., Chassé, J., Bourque, D., and Nadeu, A. (2011). Predicting larval dispersal of the vase tunicate Ciona intestinalis in a Prince Edward Island estuary using a matrix population model. Aquatic Invasions 6, 491–506.
Predicting larval dispersal of the vase tunicate Ciona intestinalis in a Prince Edward Island estuary using a matrix population model.Crossref | GoogleScholarGoogle Scholar |

Keller, R. P., Lodge, D. M., and Finnoff, D. C. (2007). Risk assessment for invasive species produces net bioeconomic benefits. Proceedings of the National Academy of Sciences of the United States of America 104, 203–207.
Risk assessment for invasive species produces net bioeconomic benefits.Crossref | GoogleScholarGoogle Scholar |

Kohler, K. E., and Gill, S. E. (2006). Coral Point Count with Excel extensions (CPCe): a Visual Basic program for the determination of coral and substrate coverage using random point count methodology. Computers & Geosciences 32, 1259–1269.
Coral Point Count with Excel extensions (CPCe): a Visual Basic program for the determination of coral and substrate coverage using random point count methodology.Crossref | GoogleScholarGoogle Scholar |

Lambert, C. C., and Lambert, G. L. (1998). Non-indigenous ascidians in southern California harbors and marinas. Marine Biology 130, 675–688.
Non-indigenous ascidians in southern California harbors and marinas.Crossref | GoogleScholarGoogle Scholar |

Lambert, C. C., and Lambert, G. L. (2003). Persistence and differential distribution of nonindigenous ascidians in harbors of the Southern California Bight. Marine Ecology Progress Series 259, 145–161.
Persistence and differential distribution of nonindigenous ascidians in harbors of the Southern California Bight.Crossref | GoogleScholarGoogle Scholar |

Largier, J. L., Hollibaugh, J. T., and Smith, S. V. (1997). Seasonally hypersaline estuaries in Mediterranean-climate regions. Estuarine, Coastal and Shelf Science 45, 789–797.
Seasonally hypersaline estuaries in Mediterranean-climate regions.Crossref | GoogleScholarGoogle Scholar |

Lenz, M., da Gama, B. A., Gerner, N. V., Gobin, J., Gröner, F., Harry, A., Jenkins, S. R., Kraufvelin, P., Mummelthei, C., Sareyka, J., Xavier, E. A., and Wahl, M. (2011). Non-native marine invertebrates are more tolerant towards environmental stress than taxonomically related species: results from a globally replicated study. Environmental Research 111, 943–952.
Non-native marine invertebrates are more tolerant towards environmental stress than taxonomically related species: results from a globally replicated study.Crossref | GoogleScholarGoogle Scholar |

Lotze, H. K., Lenihan, H. S., Bourque, B. J., Bradbury, R. H., Cooke, R. G., Kay, M. C., Kidwell, S. M., Kirby, M. X., Peterson, C. H., and Jackson, J. B. C. (2006). Depletion, degradation, and recovery potential of estuaries and coastal seas. Science 312, 1806–1809.
Depletion, degradation, and recovery potential of estuaries and coastal seas.Crossref | GoogleScholarGoogle Scholar |

Lutz-Collins, V., Ramsay, R., Quijón, P. A., and Davidson, J. (2009). Invasive tunicates fouling mussel lines: evidence of their impact on native tunicates and other epifaunal invertebrates. Aquatic Invasions 4, 213–220.
Invasive tunicates fouling mussel lines: evidence of their impact on native tunicates and other epifaunal invertebrates.Crossref | GoogleScholarGoogle Scholar |

Manchester, S. J., and Bullock, J. M. (2000). The impacts of non-native species on UK biodiversity and the effectiveness of control. Journal of Applied Ecology 37, 845–864.
The impacts of non-native species on UK biodiversity and the effectiveness of control.Crossref | GoogleScholarGoogle Scholar |

Marshall, D. J., and Keough, M. J. (2003). Variation in the larval dispersal potential of non-feeding invertebrate larvae: the desperate larva hypothesis and larval size. Marine Ecology Progress Series 255, 145–153.
Variation in the larval dispersal potential of non-feeding invertebrate larvae: the desperate larva hypothesis and larval size.Crossref | GoogleScholarGoogle Scholar |

McLaughlin, K., Sutula, M., Busse, L., Anderson, S., Crooks, J., Dagit, R., Gibson, D., Johnston, K., and Stratton, L. (2014). A regional survey of the extent and magnitude of eutrophication in Mediterranean estuaries of southern California, USA. Estuaries and Coasts 37, 259–278.
A regional survey of the extent and magnitude of eutrophication in Mediterranean estuaries of southern California, USA.Crossref | GoogleScholarGoogle Scholar |

Miller, K. A., Engle, J. M., Uwai, S., and Kawai, H. (2007). First report of the Asian seaweed Sargassum filicinum Harvey (Fucales) in California, USA. Biological Invasions 9, 609–613.
First report of the Asian seaweed Sargassum filicinum Harvey (Fucales) in California, USA.Crossref | GoogleScholarGoogle Scholar |

National Marine Fisheries Service (2013). Essential fish habitat programmatic consultation for overwater structures between the National Oceanic and Atmospheric Administration’s National Marine Fisheries Service and the United States Army Corps of Engineers, South Coast Branch, Los Angeles, CA, USA.

National Marine Fisheries Service (2014). California Eelgrass Mitigation Policy. Federal Register 79, 66360–66361.

Nightingale, B., and Simenstad, C. A. (2001). ‘Overwater Structures: Marine Issues. White Paper Research Project T1803, Task 35.’ (Washington State Department of Transportation: Seattle, WA, USA.)

Page, H. M., Dugan, J. E., Culver, C. S., and Hoesterey, J. C. (2006). Exotic invertebrate species on offshore oil platforms. Marine Ecology Progress Series 325, 101–107.
Exotic invertebrate species on offshore oil platforms.Crossref | GoogleScholarGoogle Scholar |

Pati, S. K., Rao, M. V., and Balaji, M. (2015). Spatial and temporal changes in biofouling community structure at Visakhapatnam Harbor, east coast of India. Tropical Ecology 56, 139–154.

Pernet, B., Barton, M., Fitzhugh, K., Harris, L. H., Lizárraga, D., Ohl, R., and Whitcraft, C. R. (2016). Establishment of the reef forming tubeworm Ficopomatus enigmaticus (Fauvel, 1923) (Annelida: Serpulidae) in southern California. BioInvasions Records 5, 13–19.
Establishment of the reef forming tubeworm Ficopomatus enigmaticus (Fauvel, 1923) (Annelida: Serpulidae) in southern California.Crossref | GoogleScholarGoogle Scholar |

Pimental, D., Zuniga, R., and Morrison, D. (2005). Update on the environmental costs associated with alien-invasive species in the United States. Ecological Economics 52, 272–288.

Piola, R. F., and Johnston, E. L. (2006). Differential resistance to extended copper exposure in four introduced bryozoans. Marine Ecology Progress Series 311, 103–114.
Differential resistance to extended copper exposure in four introduced bryozoans.Crossref | GoogleScholarGoogle Scholar |

Ritter, A., Wasson, K., Lonhart, S. I., Preisler, R. K., Woolfolk, A., Griffith, K. A., Connors, S., and Heiman, K. W. (2008). Ecological signatures of anthropogenically altered tidal exchange in estuarine ecolocations. Estuaries and Coasts 31, 554–571.
Ecological signatures of anthropogenically altered tidal exchange in estuarine ecolocations.Crossref | GoogleScholarGoogle Scholar |

Ruesink, J. L., Feist, B. E., Harvey, C. J., Hong, J. S., Trimble, A. C., and Wisehart, L. M. (2006). Changes in productivity associated with four introduced species: ecosystem transformation of a ‘pristine’ estuary. Marine Ecology Progress Series 311, 203–215.
Changes in productivity associated with four introduced species: ecosystem transformation of a ‘pristine’ estuary.Crossref | GoogleScholarGoogle Scholar |

Ruiz, G. M., Freestone, A. L., Fofonoff, P. W., and Simkanin, C. (2009). Habitat distribution and heterogeneity in marine invasion dynamics: the importance of hard substrate and artificial structure. In ‘Marine Hard Bottom Communities’. (Ed. M. Wahl.) pp. 321–332. (Springer.)

Seabergh, W. C., and Outlaw, D. G. (1984). Los Angeles and Long Beach Harbors model study: numerical analysis of tidal circulation for the 2020 master plan. Final report, Government Accession Number AO-A145142, US Army Corps of Engineers, Los Angeles, CA, USA.

Simkanin, C., Fofonoff, P. W., Larson, K., Lambert, G., Dijkstra, J. A., and Ruiz, G. M. (2016). Spatial and temporal dynamics of ascidian invasions in the continental United States and Alaska. Marine Biology 163, 163.
Spatial and temporal dynamics of ascidian invasions in the continental United States and Alaska.Crossref | GoogleScholarGoogle Scholar |

Stachowicz, J. J., Whitlatch, R. B., and Osman, R. W. (1999). Species diversity and invasion resistance in a marine ecosystem. Science 286, 1577–1579.
Species diversity and invasion resistance in a marine ecosystem.Crossref | GoogleScholarGoogle Scholar |

Stachowicz, J. J., Fried, H., Osman, R. W., and Whitlatch, R. B. (2002). Biodiversity, invasion resistance and marine ecosystem function: reconciling pattern and process. Ecology 83, 2575–2590.
Biodiversity, invasion resistance and marine ecosystem function: reconciling pattern and process.Crossref | GoogleScholarGoogle Scholar |

Sutherland, J. P. (1978). Functional roles of Schizoporella and Styela in the fouling community at Beaufort, North Carolina. Ecology 59, 257–264.
Functional roles of Schizoporella and Styela in the fouling community at Beaufort, North Carolina.Crossref | GoogleScholarGoogle Scholar |

Sutherland, J. P., and Karlson, R. H. (1977). Development and stability of the fouling community at Beaufort, North Carolina. Ecological Monographs 47, 425–446.
Development and stability of the fouling community at Beaufort, North Carolina.Crossref | GoogleScholarGoogle Scholar |

Svensson, J. R., and Marshall, D. J. (2015). Limiting resources in sessile locations: food enhances diversity and growth of suspension feeders despite available space. Ecology 96, 819–827.
Limiting resources in sessile locations: food enhances diversity and growth of suspension feeders despite available space.Crossref | GoogleScholarGoogle Scholar |

Thom, R. M., Williams, G. W., and Diefenderfer, H. L. (2005). Balancing the need to develop coastal areas with the desire for an ecologically functioning coastal environment: is net ecosystem improvement possible? Restoration Ecology 13, 193–203.
Balancing the need to develop coastal areas with the desire for an ecologically functioning coastal environment: is net ecosystem improvement possible?Crossref | GoogleScholarGoogle Scholar |

Thom, R. M., Southard, S. L., Borde, A. B., and Stoltz, P. (2008). Light requirements for growth and survival of eelgrass (Zostera marina L.) in Pacific Northwest (USA) estuaries. Estuaries and Coasts 31, 969–980.
Light requirements for growth and survival of eelgrass (Zostera marina L.) in Pacific Northwest (USA) estuaries.Crossref | GoogleScholarGoogle Scholar |

Tyrrell, M. C., and Byers, J. E. (2007). Do artificial substrates favor nonindigenous fouling species over native species? Journal of Experimental Marine Biology and Ecology 342, 54–60.
Do artificial substrates favor nonindigenous fouling species over native species?Crossref | GoogleScholarGoogle Scholar |

Vieira, E. A., Flores, A. A. V., and Dias, G. M. (2018). Current conditions and colonization history assymetrically shape the organization of shallow sessile communities after simulated state shifts. Marine Environmental Research 133, 24–31.
Current conditions and colonization history assymetrically shape the organization of shallow sessile communities after simulated state shifts.Crossref | GoogleScholarGoogle Scholar |

Wasson, K., Fenn, K., and Pearse, J. S. (2005). Habitat differences in marine invasions of central California. Biological Invasions 7, 935–948.
Habitat differences in marine invasions of central California.Crossref | GoogleScholarGoogle Scholar |

Whalen, M. A., and Stachowicz, J. J. (2017). Suspension feeder diversity enhances community filtration rates in different flow environments. Marine Ecology Progress Series 570, 1–13.
Suspension feeder diversity enhances community filtration rates in different flow environments.Crossref | GoogleScholarGoogle Scholar |

Wilcove, D. S., Rothstein, D., Dubow, J., Phillips, A., and Losos, E. (1998). Quantifying threats to imperiled species in the United States. Bioscience 48, 607–615.
Quantifying threats to imperiled species in the United States.Crossref | GoogleScholarGoogle Scholar |

Worcester, S. E. (1994). Adult rafting versus larval swimming: dispersal and recruitment of a botryllid ascidian on eelgrass. Marine Biology 121, 309–317.
Adult rafting versus larval swimming: dispersal and recruitment of a botryllid ascidian on eelgrass.Crossref | GoogleScholarGoogle Scholar |