World-wide distribution of the Bryozoan Pectinatella magnifica (Leidy 1851)

Balounová, Zuzana; Pechoušková, Eva; Rajchard, Josef; Joza, Vít; Šinko, Jan

doi:10.14712/23361964.2015.11

Cited by 12 publications

(9 citation statements)

References 23 publications

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“…Plumatellid bryozoans are frequently recorded in waterbird excreta (Brochet, Gauthier‐Clerc, et al., ; Green et al., ), but to our knowledge, this is the first confirmation that birds are vectors for alien bryozoans such as P. vaihiriae , although this is considered likely for other aliens such as Pectinatella magnifica (Balounová, Pechoušková, Rajchard, Joza, & Šinko, ). The ability of bryozoans to disperse by birds may increase the economic costs they impose through biofouling of pipes and pumps (Mant, Moggridge, & Aldridge, ).…”

Section: Discussionmentioning

confidence: 75%

Crayfish invasion facilitates dispersal of plants and invertebrates by gulls

et al. 2018

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The red swamp crayfish (Procambarus clarkii), originally from North America, is one of the world's worst aquatic invaders. It is a favoured prey item for waterbirds, but the influence of this novel predator–prey relationship on dispersal of other organisms has not previously been considered. We investigated the potential for dispersal of plants and invertebrates by migratory waterbirds feeding on alien P. clarkii in European ricefields at harvest time. In November–December of 2014–2015, we collected propagules from the outside of 13 crayfish captured as they moved out of ricefields during harvest in Doñana, south‐west Spain. We also collected excreta (N = 76 faeces, 14 pellets) of lesser‐black backed gull (Larus fuscus). We recorded diaspores from at least 11 plant species (161 seeds from 10 angiosperm taxa, and 14 charophyte oogonia) on the outside of crayfish, together with 54 eggs from eight aquatic invertebrate taxa. Adults and juveniles of at least nine microcrustaceans, including the alien ostracods Hemicypris reticulata and Ankylocythere sinuosa, were also recovered from crayfish. No intact propagules were present in the digestive system of the crayfish. Contents of regurgitated pellets confirmed P. clarkii as the main food item for gulls. Diaspores from at least 12 plant species (154 seeds from 11 angiosperm taxa, and 17 charophyte oogonia) were recovered from gull excreta, together with 129 eggs of 12 aquatic invertebrate taxa. A statoblast of the alien bryozoan Plumatella vaihiriae was found in gull faeces. Seven of the plant species are important agricultural weeds, and two are alien to Spain. Diaspores from six plant taxa were germinated, confirming viability. These propagules were from a similar set of plants and invertebrates to those found on the outside of crayfish, suggesting that propagules in gull excreta were ingested inadvertently with their crayfish prey. Ricefields constitute a major artificial aquatic habitat covering an increasing proportion of the world's land surface and typically support native or alien crayfish. Crayfish invasion can lead to novel secondary dispersal pathways for plants and invertebrates through interactions with their predators, promoting the expansion of alien and native species (including weeds) through long‐distance dispersal via migratory waterbirds and increasing connectivity of organisms between artificial and natural ecosystems. This represents a previously overlooked impact of crayfish invasion on ecosystem services.

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Section: Discussionmentioning

confidence: 75%

Crayfish invasion facilitates dispersal of plants and invertebrates by gulls

et al. 2018

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“…Pectinatella magnifica (Leidy, 1851), a freshwater bryozoan species that naturally inhabits lakes and rivers in eastern North America [ 1 , 2 ], has been recently spreading in Europe and western Asia [ 3 – 5 ]. Its colonies begin life from a germinated statoblast (a product of asexual reproduction) or settled larva (the result of sexual reproduction).…”

Section: Resultsmentioning

confidence: 99%

AFLP reveals low genetic diversity of the bryozoan Pectinatella magnifica (Leidy, 1851) in the Czech Republic

Moravcova

Moravcová

Čurn

et al. 2017

J of Biol Res-Thessaloniki

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Background: Non-native species have aroused scientific interest because of their ability to successfully colonise areas to which they have been introduced, despite their sometimes limited genetic variation compared to their native range. These species establish themselves with the aid of some pre-existing features favouring them in the new environment. Pectinatella magnifica (Leidy, 1851), the freshwater magnificent bryozoan, is non-native in Europe and Asia. This study was designed to determine the genetic diversity and population structure of P. magnifica colonies collected from the Protected Landscape Area (PLA) and UNESCO Biosphere Reserve Třeboňsko (the Czech Republic) in the 2009 and 2011-2014 periods using Amplified Fragment Length Polymorphism (AFLP). Findings:The vast majority of the examined non-native colonies, except three colonies sampled in 2012, expressed very low levels of genetic variation, not differentiating from the USA native colony. The Bayesian clustering approach grouped the 28 accessions into two genetically different populations. Conclusions:The data suggest relatively low gene diversity within all colonies, which might reflect the recent expansion of P. magnifica in the Czech Republic.

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“…Ricciardi and Reiswig 1994) and high nutrient concentrations (Hartikainen et al 2009) have been shown to favour bryozoans, many nutrient-enriched waters may offer potential new habitats. On the other hand, P. magnifica has been found from relatively oligotrophic and mesotrophic waters (Balounová et al 2013), explaining its success in the Vuoksi watercourse (Table S1).…”

Section: Discussionmentioning

confidence: 99%

Invasion of Finnish inland waters by the alien moss animal Pectinatella magnifica Leidy, 1851 and associated potential risks

Vuorio¹,

Kanninen²,

Mitikka³

et al. 2018

MBI

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Introduced alien species bring potential adverse impacts on biodiversity and ecosystem functions. International shipping is an important vector for such unintentional introductions in aquatic environments. Therefore, in addition to climate change and eutrophication, increasing international shipping may enhance the spread of alien species into areas which have not previously been considered prone to alien invasions. One example of such development might be the recent invasion of the moss animal Pectinatella magnifica into Finnish inland waters, which are generally considered to be hostile to alien species. We took advantage of observations made by the general public and recorded by environmental authorities to describe the invasion history of the species in Finland. The records of P. magnifica were almost exclusively from the Vuoksi watercourse, where the species was most likely introduced by international shipping ca 10-15 years ago. The species occurred mainly in the vicinity of ports of international shipping, but was also abundant in an area with only domestic cargo transport. Only one confirmed observation in Lake Kirkkojärvi was from outside the Vuoksi watercourse. Most colonies were found attached to landing stages or submerged, relatively rigid water plants, and the species seemed to avoid less rigid water plants, such as water lilies. Once established, the species may spread by vectors such as recreational boating or water birds and fish. The species poses some risks to the ecosystem, including a risk to farmed and wild salmonid fish by serving as a potential host for the myxozoan endoparasite Tetracapsuloides bryosalmonae, the causative agent for proliferative kidney disease (PKD), known to be detrimental for salmonid fish.

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World-wide distribution of the Bryozoan Pectinatella magnifica (Leidy 1851)

Abstract: Pectinatella magnifica (Leidy 1851) is an invasive freshwater colonial animal belonging to the phylum Bryozoa. It is native to the area east of the Mississippi River, from Ontario to Florida.

Cited by 12 publications

References 23 publications

Crayfish invasion facilitates dispersal of plants and invertebrates by gulls

Crayfish invasion facilitates dispersal of plants and invertebrates by gulls

AFLP reveals low genetic diversity of the bryozoan Pectinatella magnifica (Leidy, 1851) in the Czech Republic

Invasion of Finnish inland waters by the alien moss animal Pectinatella magnifica Leidy, 1851 and associated potential risks

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