Vol. 63-29, 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)
Olga M. Korn
A.V. Zhirmunsky National Scientific Center of Marine Biology, Far Eastern Branch, Russian Academy of Sciences, Vladivostok 690041, Russia
Department of Biological Sciences, University of Bergen, Bergen, Norway
Darya D. Golubinskaya
A.V. Zhirmunsky National Scientific Center of Marine Biology, Far Eastern Branch, Russian Academy of Sciences, Vladivostok 690041, Russia
Svetlana N. Sharina
A.V. Zhirmunsky National Scientific Center of Marine Biology, Far Eastern Branch, Russian Academy of Sciences, Vladivostok 690041, Russia
Department of Biological Sciences, University of Bergen, Bergen, Norway
Christoph Noever
Department of Biological Sciences, University of Bergen, Bergen, Norway
Henrik Glenner
Department of Biological Sciences, University of Bergen, Bergen, Norway
Communicated by Benny Kwok Kan 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%.
Keywords
Rhizocephala, Briarosaccus, Lithodidae, DNA analysis, Histology, SEM, Peter the Great Bay
