Invasive slipper limpets<i>Crepidula fornicata</i>are hosts for sterilizing digenean parasites

Quinn, Emma; Thomas, Jonathan; Malkin, Sophie H.; Eley, Molly-Jane; Coates, Christopher J.; Rowley, Andrew F.

doi:10.1017/s0031182022000257

Cited by 4 publications

(2 citation statements)

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“…To date, few parasites or diseases have been reported in C. fornicata other than the shell boring sponge C. celata (Le Cam and Viard 2011) and interactions with trematodes (Pechenik et al 2001;Thieltges et al 2006Thieltges et al , 2008Quinn et al 2022). We determined the bacterial loads of C. fornicata, focusing on a key aetiological agent in commercial shellfish, namely Vibrio spp.…”

Section: Discussionmentioning

confidence: 99%

“…Such data are key to considering the risk of disease transfer to other co-located commercially important oysters (C. gigas) and mussels (M. edulis). Crepidula fornicata can act as a sink of trematode cercariae that use mytilids as intermediate hosts (Pechenik et al 2001;Thieltges et al 2006), although infections or tissue damage are rare in limpets themselves (Quinn et al 2022). Le Cam and Viard (2011) performed a single, systematic study of disease in French populations of C. fornicata, revealing that ~ 43% were infested by a sponge Cliona celata between 2004 and 2007.…”

Section: Introductionmentioning

confidence: 99%

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Invasive slipper limpets (Crepidula fornicata) act like a sink, rather than source, of Vibrio spp.

et al. 2022

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A large knowledge gap exists regarding the disease profile and pathologic condition of the invasive, slipper limpet Crepidula fornicata. To help address this, we performed a year-long health survey at two sites in South Wales, UK – subtidal Swansea Bay and intertidal Milford Haven. In total, 1,800 limpets were screened systematically for haemolymph bacterial burdens using both general and vibrio-selective growth media (TSA + 2% NaCl and TCBS, respectively), haemolymph (blood) inspection using microscopy, a PCR-based assay targeting Vibrio spp., and multi-tissue histology. Over 99% of haemolymph samples contained cultivable bacterial colony-forming units, and 83% of limpets tested positive for the presence of vibrios via PCR (confirmed via Sanger sequencing). Vibrio presence did not vary greatly between sites, yet a strong seasonal effect was observed with significantly higher bacterial loads during the summer. Binomial logistic regression models revealed larger (older) limpets were more likely to harbour vibrios, and the growth of bacteria on TCBS was a key predictor for PCR-based vibrio detection. Histological assessment of > 340 animals revealed little evidence of inflammation, sepsis or immune reactivity despite the gross bacterial numbers. We contend that slipper limpets are not highly susceptible to bacteriosis at either site, and do not harbour vibrios known to be pathogenic to humans. The lack of susceptibility to local pathogenic bacteria may explain, in part, the invasion success of C. fornicata across this region.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Invasive slipper limpets (Crepidula fornicata) act like a sink, rather than source, of Vibrio spp.

et al. 2022

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Integrative taxonomy reveals two new species of Maritrema Nicoll, 1907 (Digenea: Microphallidae Ward, 1901), parasitizing birds in the Gulf of Mexico

Aldama-Prieto,

González-García,

Mendoza-Garfías

et al. 2024

J. Helminthol.

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Members of the genus Maritrema Nicoll, 1907 include endoparasites of aquatic birds and mammals, distributed worldwide. Adult specimens were collected from the intestines of three bird species (the great black hawks, Buteogallus urubitinga Gmelin; laughing gull, Leucophaeus atricilla Linnaeus; and the willet, Tringa semipalmata Gmelin) in three localities along the Gulf of Mexico. Photogenophores were sequenced for the large subunit (LSU) from nuclear rDNA, and the new sequences were aligned with other microphalloid sequences available in GenBank. The maximum likelihood and Bayesian inference analyses revealed three independent lineages, one corresponding to a previously described species, Maritrema corai Hernández-Orts, Pinacho-Pinacho, García-Varela & Kostadinova, 2016, and two representing two undescribed species. These two new species are described in the current study. Maritrema itzamnai n. sp. can be morphologically differentiated from its four congeneric species occurring in coastal areas of Mexico by having smaller oral (20–29 × 20–38 μm) and ventral (20–39 × 19–33 μm) suckers. In addition, Maritrema itzamnai n. sp. possess annular vitellarium instead of a horseshoe-shaped vitellarium. Maritrema kukulkanni n. sp. can be distinguished from its congeneric species reported from Mexico by possessing a larger oesophagus (44–117μm) and by having a vitellarium distributed in both the hindbody and forebody. Maritrema corai is the third species recorded in this study parasitizing the great black hawk (Buteogallus urubitinga); this represents a new host and locality record, expanding its distribution range from the Mexican Pacific Ocean to the Gulf of Mexico.

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The phylogenetic position of Maritrema afanassjewi Belopol'skaya, 1952 (Digenea, Plagiorchiida: Microphallidae), a parasite of the Ussuri brown bear, Ursus arctos lasiotus Gray, 1867 (Carnivora, Ursidae)

et al. 2023

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Adult digeneans of Maritrema afanassjewi Belopol’skaya, 1952 parasitize birds and mammals at the North Pacific coasts and was previously studied in a view of morphology. However, morphological features not supported by molecular characterization are considered an insufficient tool for the identification of evolutionary lineages of microfallid digeneans. Here we provide the first data on the phylogenetic position of this species inferred from sequences of 28S rRNA gene and ITS2 locus of the nuclear DNA as well as additional morphometric data. The trematodes were isolated from the intestine of the Ussuri brown bear, Ursus arctos lasiotus Gray, 1867on Iturup Island (the southern Kuril Islands). This is the second record of M. afanassjewi in the brown bear. Phylogeny based on the 28S rRNA gene was poorly resolved for this parasite species. The analyses based on ITS2 locus dataset showed that M. afanassjewi was a low-supported sister to Maritrema subdolum Jägerskiöld, 1909.

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Invasive slipper limpetsCrepidula fornicataare hosts for sterilizing digenean parasites

Cited by 4 publications

References 49 publications

Invasive slipper limpets (Crepidula fornicata) act like a sink, rather than source, of Vibrio spp.

Invasive slipper limpets (Crepidula fornicata) act like a sink, rather than source, of Vibrio spp.

Integrative taxonomy reveals two new species of Maritrema Nicoll, 1907 (Digenea: Microphallidae Ward, 1901), parasitizing birds in the Gulf of Mexico

The phylogenetic position of Maritrema afanassjewi Belopol'skaya, 1952 (Digenea, Plagiorchiida: Microphallidae), a parasite of the Ussuri brown bear, Ursus arctos lasiotus Gray, 1867 (Carnivora, Ursidae)

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