Records of Bryozoans in the Freshwater Reach of the Hudson River Estuary

Michelena, Toby M.; Ostman, Celeste; Boylen, Charles W.; Nierzwicki‐Bauer, Sandra A.

doi:10.1656/045.021.0305

Cited by 2 publications

(2 citation statements)

References 15 publications

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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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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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“…Since then it has been recorded mostly in the North-Eastern part of the United States (e.g. Marsh and Wood 2001;Barnes and Laue 2003;Taticchi et al 2011;Michelene et al 2014) and Canada (e.g. Ricciardi and Reiswig 1994).…”

Section: Introductionmentioning

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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Records of Bryozoans in the Freshwater Reach of the Hudson River Estuary

Cited by 2 publications

References 15 publications

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

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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