Editorial |
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Frances E. Lucy and Thaddeus K. Graczyk
Detection to Dissemination, Pathways in Aquatic Invasive Species Research (pp 269-270)
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Research articles |
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Michael Millane, Mary Kelly-Quinn and Trevor Champ
Impact of the zebra mussel invasion on the ecological integrity of Lough Sheelin, Ireland:
distribution, population characteristics and water quality changes in the lake (pp 271-281)
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The zebra mussel, Dreissena polymorpha (Pallas, 1771), invaded Lough Sheelin in the midlands of Ireland in 2001.
In order to assess the status of the mussel population in the lake, the distribution, extent of colonisation, abundance,
biomass and sizefrequency structure of post-settlement stages were studied in 2005 and 2006. In addition, changes to water
quality parameters in the lake post-establishment were assessed with reference to the pre-invasion period. Zebra mussels
were found throughout the lake at most sites on all main categories of substrates examined (stony and soft substrate;
submerged vegetation: Characeae, Elodea spp., Cladophora spp., Potamogeton spp. and Myriophyllum spp.,
and emergent vegetation: Phragmites australis and Schoenoplectus lacustris). Overall, increases in density and
biomass of mussels were recorded from 2005 to 2006. Analysis of physiochemical data show a reduction in chlorophyll a with
an increase in water transparency, however the total phosphorus concentration remains high. This paper highlights the common
misconception that zebra mussel introductions lead to overall improvements in water quality.
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Tamara A. Makarevich, Sergey E. Mastitsky and Irina V. Savich
Phytoperiphyton on the shells of Dreissena polymorpha (Pallas) in Lake Naroch (pp 283-295)
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The aim of this study was to reveal the taxonomic diversity of algae that colonize the shells of zebra mussels,
Dreissena polymorpha, in mesotrophic Lake Naroch (Belarus). In total, 155 algal species have been identified
in collected samples, with Bacillariophyta, Chlorophyta and Cyanophyta being the most common divisions.
The species richness of phytoperiphyton from Dreissena shells appeared to be much higher than that of phytoplankton
(30 species found). Taxonomic diversity of the phytoperiphyton was found to significantly decline with depth, which
we explain by decreasing sun irradiance. In contrast to depth, the length of Dreissena shells did not demonstrate
any relationships with the composition of algal communities.
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Frances E. Lucy, Dan Minchin and Rick Boelens
From lakes to rivers: downstream larval distribution of Dreissena polymorpha in Irish river basins (pp 297-304)
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Three different river sizes were examined at various distances downstream of Irish lakes containing
zebra mussel populations.The larger rivers contained zebra mussel larvae and adults at a wide range
of densities throughout their length. However, smaller rivers demonstrated a rapid decline of larvae
and adults with progression downstream. River sections downstream of interconnected lakes were also
examined as part of this study. The fate of the zebra mussel larvae in medium and small rivers remains unknown.
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Thaddeus K. Graczyk, Frances E. Lucy, Leena Tamang, Dan Minchin and Allen Miraflor
Assessment of waterborne parasites in Irish river basin districts – use of zebra mussels
(Dreissena polymorpha) as bioindicators (pp 305-313)
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The zebra mussel (Dreissena polymorpha) is an abundant and invasive molluscan shellfish
species which arrived in Ireland’s river basins in the early 1990’s. Inland and coastal surface
waters can be contaminated by human waterborne zoonotic enteropathogens such as Cryptosporidium parvum,
Giardia lamblia, Encephalitozoon intestinalis, E. hellem and Enterocytozoon bieneusi
originating predominantly from wastewater treatment plant effluents and agricultural runoff. Bivalve species,
i.e., the invasive zebra mussel, Mytilus edulis (blue mussel) and Anodonta anatina (duck mussel)
were used as sentinels and also as biomonitors of the aforementioned waterborne pathogens at twelve sites located
in three Irish river basin districts impacted by pollution related to various water quality pressures. A variety
of advanced biomolecular techniques were utilized to assess the presence and concentration of these pathogens in
molluscan shellfish. At least one pathogen species was detected in bivalves at each of the twelve sites.
Cryptosporidium, implicated in several recent Irish gastrointestinal epidemics, was recorded at all sites
subjected to agricultural runoff and at one treated wastewater discharge site, linking source-track directly to
animal and human fecal wastes. Overall, the results demonstrated a long-term human enteropathogen contamination
of Irish waters with consequent public health risk-factors for drinking water abstraction and water-based recreational
activities. The study provided further solid evidence that zebra mussels can recover and concentrate environmentally
derived human pathogens and therefore can be used for the sanitary assessment of surface water quality.
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Concha Durán Lalaguna and Antonia Anadón Marco
The zebra mussel invasion in Spain and navigation rules (pp 315-324)
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Dreissena polymorpha (zebra mussel) has been invading freshwater bodies in Europe since the beginning
of the 19th century and is still doing so. The zebra mussel was introduced in the Iberian Peninsula in 2001,
and since then the Ebro Hydrographic Confederation has adopted several measures to stop the invasion.
The main invasion route for the zebra mussel in Spain is via recreational boating in lakes and reservoirs,
so the main measure adopted has been to change the navigation rules in the Ebro basin. Restrictions on the number
of navigable reservoirs and the introduction of disinfection protocols and access controls have helped to prevent
the spread of the zebra mussel.
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Kringpaka Wangkulangkul and Vachira Lheknim
The occurence of an invasive alien mussel Mytilopsis adamsi Morrison, 1946
(Bivalvia: Dreissenidae) in estuaries and lagoons of the lower south of the Gulf
of Thailand with comments on their establishment (pp 325-330)
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The invasive false mussel, Mytilopsis adamsi Morrison, 1946 (Bivalvia: Dreissenidae),
is a brackish water bivalve, native to tropical West Pacific coast of central America. The species
has now become established in East Asian, South Asian and Southeast Asian countries. Species spread
has been especially rapid with its distribution now including the lower part of the Gulf of Thailand.
This is the first report of the establishment of this species in the lower part of the Gulf of Thailand,
in Haad-kaew Lagoon and Thale Sap Songkhla, in Songkhla province, and the Pak Phanang Estuary in Nakhon
Si Thammarat province, south Thailand. Descriptions of its morphology are consistent with previous
descriptions from other areas as M. adamsi. Based on the available evidence, it is postulated
that the species was transported to the areas between the year 1990 and 2000 via international
commercial cargo ships. These findings indicate that the spread of M. adamsi is still in progress
and that this invasive mussel continues to colonize the Songkhla Lagoon System.
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Short communications |
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Rafael Bañón, Emilio Rolán and Manuel García-Tasende
First record of the purple dye murex Bolinus brandaris (Gastropoda: Muricidae) and a revised
list of non native molluscs from Galician waters (Spain, NE Atlantic)
(pp 331-334)
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The purple dye murex Bolinus brandaris (Linnaeus, 1758) has been reported for the first time from
O Grove inlet (Galicia, NW Spain) in 2007. The presence of the shell mounds shows that this Mediterranean
gastropod is commonly recorded in O Grove inlet together with another exotic muricid: Hexaplex trunculus.
To the extent of our knowledge, this is the northernmost record of this species on the NE Atlantic coast.
This species is the newest entry into a list of 23 aquatic and benthic exotic molluscs species from Galician waters.
Most of them are introduced marine species, which arrived accidentally, or not, in the Galician region as
a consequence of ship transport, shellfish culture and trade.
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Mikhail O. Son
Rapid expansion of the New Zealand mud snail Potamopyrgus antipodarum (Gray, 1843) in the Azov-Black Sea Region (pp 335-340)
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This is a brief review of present invasion history of the New Zealand mud snail (Potamopyrgus antipodarum)
within the Azov-Black Sea Region. The most recent locations of P. antipodarum expansion within
the Azov-Black Sea Region (lower parts of the Danube, Dniester, and Don basins, small steppe rivers and streams) are described.
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Canella Radea, Ioanna Louvrou and Athena Economou-Amilli
First record of the New Zealand mud snail Potamopyrgus antipodarum J.E. Gray 1843
(Mollusca: Hydrobiidae) in Greece – Notes on its population structure and the associated microalgae
(pp 341-344)
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Potamopyrgus antipodarum (Gastropoda: Hydrobiidae), a New Zealand native species,
is recorded for the first time in waterbodies of Greece, being dominant in the gastropod fauna present;
waterfowl transportation is suggested as its invasion mode. This species was collected (November 2007)
from the aquatic plants Myriophyllum spicatum and Nasturtium officinale in Lake Trichonis
(CW Greece) and an adjacent stream. Totally, 332 individuals of various ages were recorded, females being
the majority. One diatom (Cocconeis placentula var. euglypta) was found in its digestive tube,
also thriving abundantly on the surface of both the invader shell and the aquatic plants, and in association
with other cosmopolitan periphytic diatoms (three of them new for the area, with one new record for Greece) or endemic diatoms.
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Dmitry P. Filippenko and Mikhail O. Son
The New Zealand mud snail Potamopyrgus antipodarum (Gray, 1843)
is colonising the artificial lakes of Kaliningrad City, Russia (Baltic Sea Coast) (pp 345-347)
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In 2008, the New Zealand mud snail Potamopyrgus antipodarum was detected in artificial freshwater
lakes of Kalinigrad City (Russia), developed in sand and gravel extraction sites. P. antipodarum
records along the Baltic coast were previously located in open sea and estuary sites and this is first
species’ record, in this type of man-made freshwater habitat, for the Baltic Region.
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Timothy M. Davidson, Valance E. F. Brenneis, Catherine de Rivera, Robyn Draheim and Graham E. Gillespie
Northern range expansion and coastal occurrences of the New Zealand mud snail
(Potamopyrgus antipodarum Gray, 1843) in the northeast Pacific (pp 349-353)
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The New Zealand mud snail Potamopyrgus antipodarum (Gray, 1843) is a common invasive species
in fresh and brackish water ecosystems in Europe, Australia, Japan, and North America. In some invaded
habitats, P. antipodarum can reach high densities (over 500,000 snails m-2) and dominate the biomass
of the benthos, leading to detrimental impacts to native biota and changes in ecosystem dynamics. We report
the previously unpublished occurrence of P. antipodarum in thirteen fresh and brackish water systems
adjacent to the Pacific coast of North America including a new northern range for P. antipodarum:
Port Alberni, Vancouver Island, British Columbia, Canada (49.2479º, -124.8395º). We hypothesize the snail
was spread from the Columbia River Estuary to Port Alberni via recreational watercraft or infected fishing
equipment. Its discovery in Port Alberni reveals the potential for other aquatic nuisance species in the lower
Columbia River to spread to British Columbia. Resource managers on the Pacific coast should remain vigilant
and educate the public to prevent the further spread of the P. antipodarum as well as other aquatic invaders.
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Juan Carlos Pérez-Quintero
Revision of the distribution of Corbicula fluminea (Müller 1744) in the Iberian Peninsula
(pp 355-358)
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This paper presents an overview of the chronology of Asian clam Corbicula fluminea invasions
in the Iberian Peninsula and additionally presents the distribution of all relevant records published
from 1981 (first record in the Peninsula) until 2008 in two geographic formats with references
to invaded basins. In short, a total of six great basins and thirteen UTM 100x100 squares showed
the presence of the species.
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Vitaliy Semenchenko, Tatiana Laenko and Vladimir Razlutskij
A new record of the North American gastropod Physella acuta (Draparnaud, 1805) from the Neman River Basin, Belarus
(pp 359-360)
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The North American gastropod Physella acuta (Draparnaud, 1805) has been recorded
for the first time in the Neman River basin, Belarus during a biological survey carried
out on 23 August 2007. One specimen was found in a shallow water microhabitat (depth 0.2 m)
amongst sand and mud. Most likely, this alien gastropod was introduced either by local
aquarium keepers, or from Poland via the Augustov canal.
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