First record of the decapod-egg predator Ovicides paralithodis (Nemertea, Carcinonemertidae) from the snow crab Chionoecetes opilio (Decapoda, Brachyura)

Natsumi Hookabe; Hirohito Motobayashi; Naoto Jimi; Hiroshi Kajihara; Rei Ueshima

doi:10.1016/j.parint.2022.102567

First record of the decapod-egg predator Ovicides paralithodis (Nemertea, Carcinonemertidae) from the snow crab Chionoecetes opilio (Decapoda, Brachyura)

Parasitol Int. 2022 Aug:89:102567. doi: 10.1016/j.parint.2022.102567. Epub 2022 Mar 2.

Authors

Natsumi Hookabe¹, Hirohito Motobayashi², Naoto Jimi³, Hiroshi Kajihara⁴, Rei Ueshima⁵

Affiliations

¹ Department of Biological Sciences, Graduate School of Science, the University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan. Electronic address: hookabe@g.ecc.u-tokyo.ac.jp.
² Fukui Prefectural Fisheries Experimental Station, 23-1 Urasoko, Tsuruga, Fukui 914-0843, Japan.
³ Sugashima Marine Biological Laboratory, Graduate School of Science, Nagoya University, Toba 517-0004, Japan.
⁴ Faculty of Science, Hokkaido University, N10W8 Kita-ku, Sapporo, Hokkaido 060-0180, Japan.
⁵ Department of Biological Sciences, Graduate School of Science, the University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan.

PMID: 35247587
DOI: 10.1016/j.parint.2022.102567

Abstract

The carcinonemertid monostiliferan Ovicides paralithodis Kajihara and Kuris, 2013 was originally described as an egg predator of the red-king crab Paralithodes camtschaticus (Tilesius, 1815) in the Sea of Okhotsk, the Bering Sea, and the Gulf of Alaska. In the present study, several carcinonemertid specimens were obtained from the egg mass of the snow crab Chionoecetes opilio (O. Fabricius, 1788) in the Sea of Japan. Partial sequences of the mitochondrial cytochrome c oxidase subunit I gene (COI) determined from two specimens of the carcinonemertid were identical with a barcode sequence from the holotype of O. paralithodis, indicating that the host range of the species covers at least the two decapod species, P. camtschaticus and C. opilio.

Keywords: Barcoding; COI; Crustacea; Fishery; Parasite; Ribbon worm.

MeSH terms

Acanthocephala*
Animals
Brachyura*
Genes, Mitochondrial
Japan