Factors Influencing the Distribution of Digenetic Trematode Infections in a Mudsnail (Hydrobia Ventrosa) Population Inhabiting Salt Marsh Ponds in Iceland

Skírnisson, Karl; Галактионов, К. В.; Kozminsky, Eugeny V.

doi:10.1645/ge-118r

Cited by 63 publications

(49 citation statements)

References 30 publications

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“…Matthews et al 1985;Bustnes et al 2000;Smith 2001;Skírnisson et al 2004;Hechinger and Lafferty 2005;Fredensborg et al 2006;Byers et al 2008;Merlo and Etchegoin 2011;Levakin et al 2013b). If birds are abundant, they release numerous parasite larvae infective for the molluscs.…”

Section: Discussionmentioning

confidence: 99%

Factors influencing the distribution of trematode larvae in blue mussels Mytilus edulis in the North Atlantic and Arctic Oceans

et al. 2014

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abundance of avian final hosts) on trematode infection was examined. Infection levels correlated with the interaction between local bird abundance and mussel age and density. They increased with mussel age but their dependence on mussel density and bird abundance varied among parasite genera. Prevalence and intensity increased with SSTmax for Renicola spp., but no relationship was found for Gymnophallus and Himasthla spp. The ambiguous effect of SSTmax is likely explained by the broad range of optimal temperatures for the normal functioning of trematode larvae (cercariae) infective for mussels and by the high dependence of the level of mussel infection on a combination of local ecological factors. High infection levels were observed even in localities with a low SSTmax. No mussels were infected in the most northeastern population, probably due to extreme conditions in the Arctic intertidal preventing trematode transmission. Abstract Blue mussels, Mytilus edulis, serve as second intermediate hosts for several trematode species, but little is known about the mechanisms underlying parasite infections in mussels. To reveal these mechanisms, the prevalence and intensity of trematode larvae (metacercariae in species of Gymnophallus, Himasthla and Renicola) were examined in blue mussels at 19 intertidal sites from the North Atlantic (Ireland, Iceland, Norway) to the Arctic Ocean (north-western Russia). Mussel samples were taken in [2005][2006][2007][2008]. The impact of a number of environmental (maximal sea surface temperature, SSTmax) and biological factors (mussel age and density and the Communicated by J. Grassle. Electronic supplementary materialThe online version of this article (

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Section: Discussionmentioning

confidence: 99%

Factors influencing the distribution of trematode larvae in blue mussels Mytilus edulis in the North Atlantic and Arctic Oceans

et al. 2014

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“…The spatial distribution of bird definitive hosts is therefore naturally assumed to be responsible for the often highly heterogeneous spatial infection pattern of larval trematodes in their first intermediate hosts. In spite of this logical assumption, evidence is mostly circumstantial or indirect and based on few observational data on bird abundance (Matthews et al 1985;Bustnes and Galaktionov 1999;Marcogliese et al 2001;Skirnisson et al 2004). Of the studies where bird abundance has been monitored, contrasting results have been obtained (Smith 2001;Kube et al 2002;Latham and Poulin 2003;Hechinger and Lafferty 2005).…”

Section: Introductionmentioning

confidence: 99%

Relating bird host distribution and spatial heterogeneity in trematode infections in an intertidal snail—from small to large scale

2005

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“…On the coast of the British Isles and the Atlantic coast of France, trematodes with three-host life cycles and freeliving cercariae reign supreme, while MPG are scarce (James, 1968a(James, , b, 1969Combescot-Lang, 1976;Irwin, 1983;Saville et al, 1997;Galaktionov et al, 2004). Chubrik (1966), James (1968aJames ( , b, 1969, Combescot-Lang (1976), Podlipaev (1979), Lauckner (1980), Deblock (1980), Irwin (1983), Matthews et al (1985), Galaktionov & Bustnes (1999); Galaktionov & Skírnisson (2000), Skírnisson & Galaktionov (2002, Skírnisson et al (2004), Thieltges et al (2009) Cestodes (Tetrabothriidae, Dilepedidae, Aploparaksidae, Hymenolepididae) and acanthocephalans (Polymorphidae, Filicolidae) that parasitize seabirds have no free-living larvae. This eliminates an important obstacle on their way into the Arctic.…”

Section: Biodiversity and Distribution Of Helminthsmentioning

confidence: 99%

Patterns and processes influencing helminth parasites of Arctic coastal communities during climate change

Галактионов

2017

J. Helminthol.

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This review analyses the scarce available data on biodiversity and transmission of helminths in Arctic coastal ecosystems and the potential impact of climate changes on them. The focus is on the helminths of seabirds, dominant parasites in coastal ecosystems. Their fauna in the Arctic is depauperate because of the lack of suitable intermediate hosts and unfavourable conditions for species with freeliving larvae. An increasing proportion of crustaceans in the diet of Arctic seabirds would result in a higher infection intensity of cestodes and acanthocephalans, and may also promote the infection of seabirds with non-specific helminths. In this way, the latter may find favourable conditions for colonization of new hosts. Climate changes may alter the composition of the helminth fauna, their infection levels in hosts and ways of transmission in coastal communities. Immigration of boreal invertebrates and fish into Arctic seas may allow the circulation of helminths using them as intermediate hosts. Changing migratory routes of animals would alter the distribution of their parasites, facilitating, in particular, their trans-Arctic transfer. Prolongation of the seasonal 'transmission window' may increase the parasitic load on host populations. Changes in Arctic marine food webs would have an overriding influence on the helminths' circulation. This process may be influenced by the predicted decreased of salinity in Arctic seas, increased storm activity, coastal erosion, ocean acidification, decline of Arctic ice, etc. Greater parasitological research efforts are needed to assess the influence of factors related to Arctic climate change on the transmission of helminths.

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Factors Influencing the Distribution of Digenetic Trematode Infections in a Mudsnail (Hydrobia Ventrosa) Population Inhabiting Salt Marsh Ponds in Iceland

Cited by 63 publications

References 30 publications

Factors influencing the distribution of trematode larvae in blue mussels Mytilus edulis in the North Atlantic and Arctic Oceans

Factors influencing the distribution of trematode larvae in blue mussels Mytilus edulis in the North Atlantic and Arctic Oceans

Relating bird host distribution and spatial heterogeneity in trematode infections in an intertidal snail—from small to large scale

Patterns and processes influencing helminth parasites of Arctic coastal communities during climate change

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