The Occurrence of Undaria pinnatifida (Phaeophyceae, Laminariales) on the South Coast of England

Fletcher, R. L.; Manfredi, C.

doi:10.1515/botm.1995.38.1-6.355

Cited by 79 publications

(42 citation statements)

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“…1). These are at Galicia, in northern Spain (Santiago C a a m a n o et al, 1990), on Jersey in the C h a n n e l Islands (Fletcher & Farrell, unpubl.) (see below) and on the south coast of England (Fletcher & Manfredi, 1995). In these instances, h u m a n activity was probably responsible.…”

Section: Arrival and Spread Of Undaria Pinnatifida In The North Atlanticmentioning

confidence: 92%

“…Note, however, that it also took nearly 2 years for Undaria to travel downstream to Hamble Point Marina, a distance of approximately 750 m. Even the local spread of Undaria on the pontoons of each marina appears to be a stepwise procedure. For example, when first observed at Port Hamble Marina, in June 1994, the plants were distributed on the sides of nine pontoons (Fletcher & Manfredi, 1995), in May 1996 they occupied the sides of 274 pontoons, and then in May 1997 they occupied the sides of 741 pontoons (1997 figures courtesy of J. Sharp and J. Lauder, personal communication).…”

Section: Arrival and Spread Of Undaria Pinnatifida In The North Atlanticmentioning

confidence: 99%

“…Interestingly, Saccorhiza polyschides is a common fouling alga on the outer harbour wails and occurs quite abun-dantly in the sublittoral fringe area of the adjacent rocky shore. In view of speculation about possible competition between Undaria pinnatifida and Saccorhiza polyschides in the North Atlantic (Hay, 1990;Castric-Fey et al, 1993;Fletcher & Manfredi, 1995) the eventual cohabitation of these two species at Torquay is likely to provide an excellent opportunity for some experimental studies. With this in mind, some experiments were initiated in 1997 and the results will be presented in a later commu-!…”

Section: Ecology Of Undaria On the South Coast Of Englandmentioning

confidence: 99%

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Introduced brown algae in the North East Atlantic, with particular respect toUndaria pinnatifida (Harvey) suringar

Fletcher

Farrell

1998

Helgolander Meeresunters

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The recent introduction of the macroalga Undaria pinnutifida (Harvey) Suringar into the North Atlantic is the latest of a large number of introductions, which have occurred over many years. Some have been deliberate introductions for mariculture or research, while most have been accidental, via vectors such as shipping and shellfish imports. Not all newly recorded species are introductions; some are thought to be merely extensions of distribution, e.g. Laminaria ochroleucu, while others may have been overlooked previously, e.g. Scytosiphon dotyi. Subsequent to its acci-

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Section: Arrival and Spread Of Undaria Pinnatifida In The North Atlanticmentioning

confidence: 92%

Section: Arrival and Spread Of Undaria Pinnatifida In The North Atlanticmentioning

confidence: 99%

Section: Ecology Of Undaria On the South Coast Of Englandmentioning

confidence: 99%

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Introduced brown algae in the North East Atlantic, with particular respect toUndaria pinnatifida (Harvey) suringar

Fletcher

Farrell

1998

Helgolander Meeresunters

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“…Undaria pinnatifida (Harvey) Suringar 1873 (also known as Wakame or Japanese Kelp), which originates in the temperate northwest Pacific, is widely regarded as one of the most invasive marine species on Earth (listed in the '100 of the World's Worst Invasive Alien Species', Invasive Species Specialist Group, IUCN 2013), having established populations in the northeast Atlantic (Castric-Fey et al, 1993;Fletcher and Manfredi, 1995), northern Mediterranean (Cecere et al, 2000), southwest Atlantic (Casas and Piriz, 1996), southern Pacific (Hay and Luckens, 1987) and the eastern Pacific (Silva et al, 2002). U. pinnatifida was first recorded in UK waters in the Hamble estuary in 1994 (Fletcher and Manfredi, 1995) and has since spread along the south coast of England (Heiser et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

The structure of biogenic habitat and epibiotic assemblages associated with the global invasive kelp Undaria pinnatifida in comparison to native macroalgae

et al. 2015

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Kelp forests dominate temperate and polar rocky coastlines and represent critical marine habitats because they support elevated rates of primary and secondary production and high biodiversity. A major threat to the stability of these ecosystems is the proliferation of nonnative species, such as the Japanese kelp Undaria pinnatifida ('Wakame'), which has recently colonised natural habitats in the UK. We quantified the abundance and biomass of U. pinnatifida on a natural rocky reef habitat over 10 months to make comparisons with three native canopy-forming brown algae (Laminaria ochroleuca, Saccharina latissima, and Saccorhiza polyschides). We also examined the biogenic habitat structure provided by, and epibiotic assemblages associated with, U. pinnatifida in comparison to native macroalgae. Surveys conducted within the Plymouth Sound Special Area of Conservation indicated that U. pinnatifida is now a dominant and conspicuous member of kelp-dominated communities on natural substrata. Crucially, U. pinnatifida supported a structurally dissimilar and less diverse epibiotic assemblage than the native perennial kelp species. However, U. pinnatifidaassociated assemblages were similar to those associated with Saccorhiza polyschides, which has a similar life history and growth strategy. Our results suggest that a shift towards U. pinnatifida dominated reefs could result in impoverished epibiotic assemblages and lower local biodiversity, although this could be offset, to some extent, by the climate-driven proliferation of L. ochroleuca at the poleward range edge, which provides complex biogenic habitat and harbours relatively high biodiversity. Clearly, greater understanding of the long-term dynamics and competitive interactions between these habitat-forming species is needed to accurately predict future biodiversity patterns.

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“…Used mainly as seafood, U. pinnatifida is economically important and has been commercially cultivated in China, Japan and Korea. U. pinnatifida has been accidentally introduced in Australia, New Zealand and Europe via ballast water discharged from ships and has become a marine pest in the natural ecosystems of some areas (Hay & Luckens 1987;Fletcher & Manfredi 1995).…”

Section: Introductionmentioning

confidence: 99%

Photosynthetic inorganic carbon utilization of gametophytes and sporophytes of Undaria pinnatifida (Phaeophyceae)

Tan

2006

Phycologia

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The characteristics of inorganic carbon assimilation by photosynthesis were investigated in male and female gametophytes and juvenile sporophytes of Undaria pinnatifida. Gametophytes and sporophytes have detectable extracellular and intracellular carbonic anhydrase (CA) activity, and the CA inhibitor, acetazolamide (AZ), significantly inhibited their photosynthesis O 2 evolution. In pH-drift experiments, it was found that gametophytes did not raise the final pH of seawater above 9.00 (CO 2 concentrations of about 2.2 M), indicating a low ability to utilize inorganic carbon. In contrast, sporophytes rapidly raised pH to over 9.53 and depleted the free CO 2 concentration to less than 0.16 M. The apparent photosynthetic affinity for CO 2 was almost the same for gametophytes and sporophytes, whereas gametophytes had a much lower affinity for HCO 3 Ϫ than sporophytes. Two inhibitors of band 3 anion exchange protein (DIDS and SITS) inhibited the photosynthesis of gametophytes but not that of sporophytes. It was indicated that both gametophytes and sporophytes were capable of using HCO 3 Ϫ , which involved the external CA activity, and a direct HCO 3 Ϫ use also occurred in the former, but the latter showed a greater capacity of HCO 3 Ϫ use than the former. In addition, male and female gametophytes did not show great differences in the inorganic carbon uptake mechanism underlying photosynthesis.

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The Occurrence of Undaria pinnatifida (Phaeophyceae, Laminariales) on the South Coast of England

Cited by 79 publications

References 1 publication

Introduced brown algae in the North East Atlantic, with particular respect toUndaria pinnatifida (Harvey) suringar

Introduced brown algae in the North East Atlantic, with particular respect toUndaria pinnatifida (Harvey) suringar

The structure of biogenic habitat and epibiotic assemblages associated with the global invasive kelp Undaria pinnatifida in comparison to native macroalgae

Photosynthetic inorganic carbon utilization of gametophytes and sporophytes of Undaria pinnatifida (Phaeophyceae)

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