2024-03-29T07:58:27Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/1223082022-06-27T10:16:24Zcom_10261_13com_10261_8col_10261_266
DIGITAL.CSIC
author
Georgiev, Boyko B.
author
Angelov, Aleksandar
author
Vasileva, Gergana G.
author
Sánchez, Marta I.
author
Hortas, F.
author
Mutafchiev, Y.
author
Pankov, P.
author
Green, Andy J.
2015-09-18T10:58:13Z
2015-09-18T10:58:13Z
2014
Acta Parasitologica, 59(3), 380–389 (2014)
http://hdl.handle.net/10261/122308
10.2478/s11686-014-0255-x
One of the best examples of rapid displacement of native species by an invader is the eradication of native Artemia salina and
A. parthenogenetica in the Mediterranean by the introduced American A. franciscana. Previous studies based on sampling from
limited time periods suggest that the success of the American species as a competitor may be due partly to different parasite
burden, since native Artemia spp. have high cestode infection rates regulating their density. The aim of this study is to test the
hypothesis that the helminth infection in A. franciscana in its invasive range is low throughout its annual life cycle. Samples
of A. franciscana were collected every second month from La Tapa saltern (Andalusia) during one year. Five helminth species
were recorded: cestodes Flamingolepis liguloides, F. flamingo, Gynandrotaenia stammeri (all flamingo parasites), Eurycestus
avoceti (a shorebird parasite) and larval spirurids of the Acuariinae (the first record of nematodes in Artemia). The overall infection
rate was low, with total prevalence 5.9% and prevalence of individual parasite species between 0.2 and 3.2%. The mean
abundance of helminths was 0.005–0.155 (av. 0.068), 5–13 times lower than in native congeners. Waterbird counts indicate that
the low infection rates cannot be explained by lack of definitive hosts. The results are consistent with the hypothesis that
helminths have no regulating effect on the invasive brine shrimp in the Mediterranean. The replacement of the native populations
by the invader can be partially explained by a competition mediated by parasites/predators through a differential impact
on host fitness
eng
openAccess
Artemia
Cestodes
Biological invasions
Hypersaline wetlands
Salt ponds
Larval helminths in the invasive American brine shrimp Artemia franciscana throughout its annual cycle
artículo
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https://digital.csic.es/bitstream/10261/122308/1/Green%20et%20al.pdf
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