Heat sensitivity of first host and cercariae may restrict parasite transmission in a warming sea

Scientific Reports, Год журнала: 2022, Номер 12(1)

Опубликована: Янв. 21, 2022

Abstract To predict global warming impacts on parasitism, we should describe the thermal tolerance of all players in host–parasite systems. Complex life-cycle parasites such as trematodes are particular interest since they can drive complex ecological changes. This study evaluates net response to temperature infective larval stage Himasthla elongata , a parasite inhabiting southwestern Baltic Sea. The sensitivity (i) infected and uninfected first intermediate host ( Littorina littorea ) (ii) cercarial emergence, survival, self-propelling, encystment, infection capacity second Mytilus edulis sensu lato) were examined. We found that by trematode rendered gastropod more susceptible elevated temperatures representing warm summer events region. At 22 °C, emergence infectivity at their optimum while survival was shortened, narrowing time window for successful mussel infection. Faster out-of-host encystment occurred increasing temperatures. After correcting temperature-specific induces adverse effects transmission bivalve host. findings suggest cercariae mortality, tradeoff infectivity, will hamper possibility flourish ocean.

Язык: Английский

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Elucidation of Himasthla leptosoma (Creplin, 1829) Dietz, 1909 (Digenea, Himasthlidae) life cycle with insights into species composition of the north Atlantic Himasthla associated with periwinkles Littorina spp

Parasitology Research, Год журнала: 2021, Номер 120(5), С. 1649 - 1668

Опубликована: Март 13, 2021

Язык: Английский

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Checking the changes over time and the impacts of COVID-19 on cockle (Cerastoderma edule) small-scale fisheries in Ria de Aveiro coastal lagoon, Portugal

Marine Policy, Год журнала: 2021, Номер 135, С. 104843 - 104843

Опубликована: Ноя. 6, 2021

Язык: Английский

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Parasitism by metacercariae modulates the morphological, organic and mechanical responses of the shell of an intertidal bivalve to environmental drivers

The Science of The Total Environment, Год журнала: 2022, Номер 830, С. 154747 - 154747

Опубликована: Март 23, 2022

Язык: Английский

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Parasitism enhances gastropod feeding on invasive and native algae while altering essential energy reserves for organismal homeostasis upon warming

The Science of The Total Environment, Год журнала: 2022, Номер 863, С. 160727 - 160727

Опубликована: Дек. 9, 2022

Язык: Английский

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Cockle as Second Intermediate Host of Trematode Parasites: Consequences for Sediment Bioturbation and Nutrient Fluxes across the Benthic Interface

Journal of Marine Science and Engineering, Год журнала: 2021, Номер 9(7), С. 749 - 749

Опубликована: Июль 6, 2021

Trematode parasites are distributed worldwide and can severely impact host populations. However, their influence on ecosystem functioning through the alteration of engineering behaviours remains largely unexplored. This study focuses a common parasite system in marine coastal environments, i.e., trematode Himasthla elongata, infecting edible cockle Cerastoderma edule as second intermediate host. A laboratory experiment was conducted to investigate indirect effects metacercarial infection sediment bioturbation biogeochemical fluxes at water interface. Our results revealed that, despite high intensity, reworking bioirrigation rates, well nutrient fluxes, were not impacted. finding unexpected since previous studies showed that impairs physiological condition cockles induces mechanical obstruction feet, thus altering burrowing capacity. There several explanations for such contrasting results. Firstly, behavior could arise over longer time period following infection. Secondly, modulation by be more pronounced older specimens burying deeper. Thirdly, intensity deleterious impacts metacercariae strongly vary across species. Lastly, alters fitness an interaction with other biotic abiotic environmental stressors.

Язык: Английский

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Effect of the alveolate parasite Perkinsus olseni infection on sexual maturation and spawning efficiency of the clam Ruditapes decussatus

Parasitology, Год журнала: 2023, Номер 150(4), С. 321 - 328

Опубликована: Фев. 1, 2023

Abstract The effect of Perkinsus olseni infection on the reproduction ability clams has been underestimated so far. Although some studies found evidence reduction egg production and delay in gonad maturation after infection, total is still unclear. In this study, Ruditapes decussatus from a naïve population were injected with two different doses P. parasites, low dose leading to light high heavy infection. Clams maintained during 2 months for maturation, at end experiment, spawning was induced, number larvae release mortality evaluated. During period, level, gonadal stage, condition index, gross biochemical composition oxidative status progenitors evaluated days 0, 30 60 post-injection. effects showed alterations parameters, namely lipid peroxidation, significant delayed greater highly infected individuals. reproductive capacity impaired both groups showing lower higher rate larvae. Finally, study indicates that natural beds prevalence could be compromised by deregulation cycle decrease animals, probably due combination reserves clams.

Язык: Английский

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Filtration and respiration responses of mussels (Mytilus edulis) to trematode parasite infections (Renicola roscovita) and transient heat exposure

International Journal for Parasitology Parasites and Wildlife, Год журнала: 2023, Номер 21, С. 296 - 304

Опубликована: Июль 27, 2023

The mussel Mytilus edulis, a host to various trematode species, experiences performance decrements due these infections. Yet, the impact magnitude and potential interactions with environmental stressors remain largely unexplored. This study scrutinizes effect of Renicola roscovita infections on filtration respiration. We first assessed in both uninfected lab-infected mussels at mild temperature (16 °C), following an acute heat ramp 30.5 °C subsequent cooling. experiment revealed neither significant direct infection mussels' performance, nor any interplay between variations. To account for possible effects obscured by low sample sizes or size disparities, we conducted reassessment 16 using small large mussels. Infection notably hampered mussels, marginal smaller ones. A positive correlation was found intensity capacity, though had no discernible Our consistent finding 11-12 % across all experiments indicates slight reduction While exacerbating transient stress infection's not statistically significant, future investigations should explore prolonged stress. findings underscore nuanced ways which parasitic can influence marine bivalve physiology, emphasizing need more comprehensive studies that incorporate stressors, such as stress, fully elucidate parasitism ecosystem health resilience.

Язык: Английский

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The impact of climate change and pollution on trematode-bivalve dynamics

Marine Environmental Research, Год журнала: 2023, Номер 191, С. 106130 - 106130

Опубликована: Авг. 17, 2023

Язык: Английский

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Himasthla spp. (Trematoda) in the edible cockle Cerastoderma edule: review, long-term monitoring and new molecular insights

Parasitology, Год журнала: 2022, Номер 149(7), С. 878 - 892

Опубликована: Март 30, 2022

Abstract Trematodes are the main macroparasites in coastal waters. The most abundant and widespread form of these parasites is metacercaria. Their impact on their host fitness considered relatively low but metacercarial larvae some species can have deleterious effects individuals and/or populations. This review focused cockle Cerastoderma edule four genus Himasthla ; a common host–parasite system marine environments. Our aims were (1) to literature concerning continua , elongata interrupta quissetensis cockles; (2) provide molecular signatures (3) analyse infection patterns using 20-year monthly database monitoring from Banc d'Arguin (France). Due identification uncertainties, analysis was restricted H. it revealed that infect cockles same size range. intensity increased with size/age. During colder months, mean parasite cohort decreased, while occurred warmest season. No inter-specific competition between trematode detected. Furthermore, even if or fluctuated different years, this did not modify community structure cockles. both also positively correlated richness abundance. study highlighted possible detrimental role spp. population dynamics. It risks misidentification, which should be resolved by further approaches.

Язык: Английский

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