Vol. 63, 2024

(update: 2024.11.11)

Rhizocephalan Barnacle Briarosaccus hoegi sp. nov. – a Parasite of the Stone Crab Hapalogaster dentata (De Haan, 1849) from Peter the Great Bay (Sea of Japan)

Olga M. Korn^1,2,*, Darya D. Golubinskaya¹, Svetlana N. Sharina¹, Christoph Noever², and Henrik Glenner²

¹A.V. Zhirmunsky National Scientific Center of Marine Biology, Far Eastern Branch, Russian Academy of Sciences, Vladivostok 690041, Russia. E-mail: dddemchyk@mail.ru (Golubinskaya); sharina.svetlana@gmail.com (Sharina)
²Department of Biological Sciences, University of Bergen, Bergen, Norway. *Correspondence: E-mail: olgamkorn@mail.ru (Korn)
E-mail: christoph.noever@uib.no (Noever); henrik.glenner@uib.no (Glenner)

(Received 16 December 2023 / Accepted 26 June 2024 / Published 11 November 2024)
Communicated by Benny K.K. Chan

Molecular and morphological methods are used to describe the rhizocephalan Briarosaccus hoegi sp. nov. from Russian waters of the Sea of Japan, parasitizing the stone crab Hapalogaster dentata (De Haan, 1849). Briarosaccus hoegi sp. nov. has minor differences by gross morphology from the closely related species B. tenellus, parasitizing H. mertensii in British Columbia and Alaska. Briarosaccus hoegi sp. nov. and B. tenellus are identified as distinct species by genetic markers. These two species have different hosts and different areas of distribution. Moreover, nauplii of Briarossacus hoegi sp. nov. have naupliar eyes not present in B. tenellus larvae. The presence/absence of larval eyes may be a clear character separating the two species. The prevalence of Briaroaccus hoegi sp. nov. on H. dentata in Peter the Great Bay is about 6%.

Key words: Rhizocephala, Briarosaccus, Lithodidae, DNA analysis, Histology, SEM, Peter the Great Bay

Citation: Korn OM, Golubinskaya DD, Sharina SN, Noever C, Glenner H. 2024. Rhizocephalan barnacle Briarosaccus hoegi sp. nov. – a parasite of the stone crab Hapalogaster dentata (De Haan, 1849) from Peter the Great Bay (Sea of Japan). Zool Stud 63:29. doi:10.6620/ZS.2024.63-29.

Supplementary materials: Table S1丨Table S2丨Table S3丨Table S4丨Table S5丨Fig. S1丨Fig. S2丨Fig. S3丨Fig. S4丨Fig. S5丨Fig. S6丨Fig. S7丨Fig. S8