Related Experiment Video
Updated: Sep 28, 2025

Genotyping of Sea Anemone during Early Development
Published on: May 13, 2019
Digenean Metacercariae Parasitic in a Staurozoan Cnidarian
1Department of Biological Sciences, Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan, kakui@eis.hokudai.ac.jp.
Abstract:
I report digenean metacercariae from Staurozoa, which were not previously known as digenean hosts. The host species, Haliclystus tenuis Kishinouye, 1910, was collected from algae in Oshoro Bay, Hokkaido, Japan, and contained metacercariae in the mesoglea. The metacercariae were encysted; cysts were oval, 93 µm long by 64 µm wide in one live individual. For the digenean, I generated partial sequences for the 18S rRNA (1585 bp) and 28S rRNA (1672 bp) genes, and the region spanning the 3' end of the cytochrome c oxidase subunit gene and the 5' end of the 16S rRNA gene, including the threonine tRNA gene (868 bp in total). Phylogenetic reconstructions based on combined 18S + 28S datasets showed the digenean to belong in Opecoelidae, members of which utilize marine or freshwater teleost fishes as definitive hosts, and placed it in Plagioporinae (sensu lato) clade C within Opecoelidae.
More Related Videos
08:44Fluorescent In Situ Hybridization and 5-Ethynyl-2'-Deoxyuridine Labeling for Stem-Like Cells in the Hydrozoan Jellyfish Cladonema pacificum
Published on: August 3, 2022
08:17Inducing Complete Polyp Regeneration from the Aboral Physa of the Starlet Sea Anemone Nematostella vectensis
Published on: January 14, 2017
Related Concept Videos
Diversity of Protists II
Diversity of Protists I
Diversity of Protists IV
Diversity of Protists III
Red Algae