A digest of bony fish tapeworms

0485128 - BC 2018 RIV FR eng J - Journal Article
Scholz, Tomáš - Kuchta, Roman
A digest of bony fish tapeworms.
Vie et Milieu: periodique d'ecologie generale. Roč. 67, č. 2 (2017), s. 43-58. ISSN 0240-8759
R&D Projects: GA ČR(CZ) GBP505/12/G112
Institutional support: RVO:60077344
Keywords : Cestoda * review * diversity * host associations * distributions * phylogeny * Actinopterygii * biogeography
OECD category: Zoology
Impact factor: 0.475, year: 2017

Members of the following seven of a total of 19 cestode orders mature in rayfinned fishes (Actinopterygii): Amphilinidea (mainly in acipenseriforms and osteoglossiforms, 8 species in 6 genera), Bothriocephalidea (in several freshwater and marine fish groups, 129/47), Caryophyllidea (mainly in cyprinids and suckers, also in some catfishes, 117/42), Haplobothriidea (exclusively in bowfin, 2/1), Nippotaeniidea (in osmeriforms and perciforms, 6/1), freshwater Onchoproteocephalidea (mainly in catfishes 194/55), and Spathebothriidea (in several freshwater and marine fish groups, 6/5). Updated information on species diversity, host associations, interrelations and geographical distribution is provided for every group. The existing phylogenetic hypotheses suggest that tapeworms colonized ray-finned fishes several times and form several independent lineages. From a total of 461 fish tapeworms only 92 species are exclusively marine. So, freshwater species dominate the assemblage. No general patterns in host use can be observed at the level of fish definitive hosts because cestodes of fishes occur in not closely related host groups. Nevertheless, only three fish orders host almost three fourth of all tapeworms of fishes, namely Siluriformes (36 % of all cestode species), Cypriniformes (22 %) and Perciformes (16 %). Nearly two thirds (61 %) of fish tapeworms have a strict (oioxenous) specificity and one third (33 %) is stenoxenous. The highest proportion (8 %) of euryxenous species is among the bothriocephalideans, including one of the most opportunistic fish helminth, the invasive Asian fish tapeworm (Schyzocotyle acheilognathi), which has been reported from more than 200 fish species and axolotl, snakes and birds.
Permanent Link: http://hdl.handle.net/11104/0280211