A cascade of biological invasions and parasite spillback in man-made Lake Kariba

Carolus, Hans; Muzarabani, Kudzai C; Hammoud, Cyril; Schols, Ruben; Volckaert, Filip; Barson, Maxwell; Huyse, Tine

doi:10.1016/j.scitotenv.2018.12.307

Cited by 35 publications

(86 citation statements)

References 56 publications

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“…To confirm gastropod species identity of the different morphotypes (i.e. species discriminated based on morphological identification), DNA barcoding based on the cytochrome c oxidase subunit I (cox1) marker was applied as described in Carolus et al (2019). Gastropod DNA extraction was carried out using the E.Z.N.A.® Mollusc DNA Kit (OMEGA bio-tek, Inc.) following the manufacturer's protocol.…”

Section: Gastropod Molecular Identificationmentioning

confidence: 99%

“…For the infection prevalence assessment, the Chelex® (Biorad™) DNA extraction method was used to extract gastropod and trematode DNA as described in Carolus et al (2019). Gastropods were pooled per four specimens of the same morphotype, site and collection date.…”

Section: Dna Extractionmentioning

confidence: 99%

“…Two multiplex rapid diagnostic (RD)-PCR protocols were used as described by Carolus et al (2019) for Fasciola spp. detection, and by Schols et al (2019) for Schistosoma spp.…”

Section: Multiplex Rd-pcrmentioning

confidence: 99%

“…This species might have been replaced by the highly invasive P. columella and Radix sp. that currently dominate in Lake Kariba (Carolus et al, 2019). The exact species identity of the Radix sp.…”

Section: Gastropod Diversitymentioning

confidence: 99%

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More than meets the eye: A shift in the gastropod and trematode communities in Lake Kariba, Zimbabwe

Muzarabani

Carolus

Hammoud

et al. 2020

Preprint

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Background: Freshwater gastropod-borne trematodes pose a great public health burden and cause major economic losses in the livestock and fish industries. Knowledge on the composition, diversity and ecology of both gastropods and trematodes communities is key to understand disease transmission dynamics and control trematodiases of economic significance. The objective of this study is to investigate the diversity and spatio-temporal ecological trends of gastropod and trematode communities on the Northern shore of Lake Kariba in Zimbabwe, the largest artificial lake in volume worldwide. Methods: A sampling campaign was undertaken at 16 sites along the lake shoreline of Kariba town. Gastropods and water samples were collected monthly during one year. All 2477 specimens were identified, counted and subjected to shedding experiments; infection status was confirmed by the use of a Rapid Diagnostic PCR (RD-PCR). To explain spatio-temporal trends in gastropod and trematode occurrence, water samples were analysed for different physico-chemical parameters including pH, temperature, nitrates and phosphates. Results: Gastropod species collected include Bulinus truncatus, Bulinus forskalii, Gyraulus sp., Pseudosuccinea columella, Radix sp, Physella acuta, Bellamya sp. and Melanoides tuberculata. Bulinus truncatus was found to be infected with trematode species belonging to the families Notocotylidae, Psilostomstidae, Paramphistomidae and Diplostomatidae. A species of the latter family was also found to infect B. forskalii. As previously reported, lymnaeid species P. columella and Radix sp. were both infected with a species belonging to the Fasciolidae family, while Radix sp. was also infected with amphistomes. Conclusions: We confirm the occurrence of new species of gastropods in Lake Kariba and the absence of the previously reported B. pfeifferi and B. globosus. This explains the absence of human schistosome species, but we report the presence of other trematode families that have not been reported in Lake Kariba or Zimbabwe before. Compared to the latest study in 2001, there is a remarkable shift in the gastropod community, which is likely driven by the introduction of exotic gastropod species that are now abundant in the lake.

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Section: Gastropod Molecular Identificationmentioning

confidence: 99%

Section: Dna Extractionmentioning

confidence: 99%

“…Two multiplex rapid diagnostic (RD)-PCR protocols were used as described by Carolus et al (2019) for Fasciola spp. detection, and by Schols et al (2019) for Schistosoma spp.…”

Section: Multiplex Rd-pcrmentioning

confidence: 99%

Section: Gastropod Diversitymentioning

confidence: 99%

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More than meets the eye: A shift in the gastropod and trematode communities in Lake Kariba, Zimbabwe

Muzarabani

Carolus

Hammoud

et al. 2020

Preprint

Self Cite

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“…(Duscher et al 2017;Hurníková et al 2016;Laurimaa et al 2016). The transmission rate of pathogens may be enhanced when introduced non-native invasive species reach high densities in newly colonized ecosystems (Kelly et al 2009;Strauss et al 2012;Carolus et al 2019). Likewise, this increases the risk of disease occurrence in wild native hosts, domestic animals, and potentially humans (Carolus et al 2019).…”

Section: Introductionmentioning

confidence: 99%

Seroprevalence of Echinococcus spp. and Toxocara spp. in Invasive Non-native American Mink

et al. 2020

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Invasive non-native species can become reservoirs of zoonotic pathogens and cause their spread during colonization, increasing the risk of zoonoses transmission to both wild hosts and humans. American mink (Neovison vison) are considered an important invasive mammal species responsible for carrying endoparasites. The aim of our study was to evaluate the role of feral American mink as a possible transmission vector of Echinococcus spp. and Toxocara spp. in wildlife. We analysed the frequency of American mink exposure to both parasites, the spatial distribution in Poland, and the variability over time on the basis of specific antibody presence using ELISA and Western blot. Alimentary tract analyses revealed that American mink do not serve as definitive hosts for these parasites. Altogether, 1100 American mink were examined. The average seropositivity for American mink was 14.2% for echinococcosis and 21.7% for toxocarosis; dualseropositivity was detected in only 6.0%. Seroprevalence of both parasites differed between study sites and significantly increased over time in Toxocara spp. Thus, our study revealed that free-living American mink are exposed to parasites and likely to be involved in the maintenance of both Echinococcus spp. and Toxocara spp.in the wild as paratenic hosts.

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Perspectives: An Integrated Approach on Future Studies of the Lymnaeidae

Vázquez,

Vinarski

2023

Zoological Monographs

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A cascade of biological invasions and parasite spillback in man-made Lake Kariba

Cited by 35 publications

References 56 publications

More than meets the eye: A shift in the gastropod and trematode communities in Lake Kariba, Zimbabwe

More than meets the eye: A shift in the gastropod and trematode communities in Lake Kariba, Zimbabwe

Seroprevalence of Echinococcus spp. and Toxocara spp. in Invasive Non-native American Mink

Perspectives: An Integrated Approach on Future Studies of the Lymnaeidae

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