Drivers of parasite community structure in fishes of the continental shelf of the Western Mediterranean: the importance of host phylogeny and autecological traits

Maite Carrassón, Sara Dallarés, Joan E. Cartes, Maria Constenla, Ana Pérez-del-Olmo, Leda Zucca, Aneta Kostadinova

Research output: Contribution to journalArticleResearch

2 Citations (Scopus)

Abstract

© 2019 Australian Society for Parasitology We explored the relationships between features of host species and their environment, and the diversity, composition and structure of parasite faunas and communities using a large taxonomically consistent dataset of host-parasite associations and host-prey associations, and original environmental and host trait data (diet, trophic level, population density and habitat depth vagility) for the most abundant demersal fish species off the Catalonian coast of the Western Mediterranean. Altogether 98 species/taxa belonging to seven major parasite groups were recovered in 683 fish belonging to 10 species from seven families and four orders. Our analyses revealed that (i) the parasite fauna of the region is rich and dominated by digeneans; (ii) the host parasite faunas and communities exhibited wide variations in richness, abundance and similarity due to a strong phylogenetic component; (iii) the levels of host sharing were low and involved host generalists and larval parasites; (iv) the multivariate similarity pattern of prey samples showed significant associations with hosts and host trophic guilds; (v) prey compositional similarity was not associated with the similarity of trophically transmitted parasite assemblages; and (vi) phylogeny and fish autecological traits were the best predictors of parasite community metrics in the host-parasite system studied.
Original languageEnglish
Pages (from-to)669-683
JournalInternational Journal for Parasitology
Volume49
DOIs
Publication statusPublished - 1 Aug 2019

Keywords

  • Autecological traits
  • Continental shelf
  • Fish
  • Host phylogeny
  • Mediterranean
  • Parasite communities

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