New data on wild grey mullet (mugil cephalus linnaeus, 1758) myxosporean (myxobolus episquamalis egusa et al., 1990) in the black sea

Anna Kazarnikova, Tatyana Strigakova, Evgeny Bortnikov, Ovkar Byadgi, Marco Galeotti, Paola Beraldo, Alexey Ermakov, Tatyana Derezina, Sarah Poynton

Research output: Contribution to journalConference articlepeer-review

Abstract

Flathead grey mullet, Mugil cephalus, with mass whitish cystlike plasmodia on their scales were collected at Kerchensky preglass of the Black Sea in 2015. The prevalence of infected fish varied from 15% in spring, reached 100% in summer, and declined to 2.5% in autumn. No fish mortality was detected. The spores were oval in frontal view, tapering to a blunt apex. Two unequal polar capsules were pyriform and extended over the anterior half of spore. Spores were 8.2±0.03 μm (7.9-8.4) long, 5.9±0.23 μm (5.2-7.3) wide, and 4.4±0.17 μm (4.0-4.7) thick. Two pyriform and unequal polar capsules were observed (4.0±0.07 μm (3.3-4.5) long, and 1.5±0.24 μm (1.1-1.8) wide). The investigation of nucleotide sequences of the 18S rDNA gene of the myxosporean spores from scales with universal primer A (5′-ACCTGGTTGATCCTGCCAGT-3′) and B (5′-TGATCCTTCTGCAGGTTCACCTAC-3′) showed 100% identity with episquamalis, and 99 % with M. bizerti, M. ichkeulensis, M. spinacurvata and Myxobolus sp. previously detected in mullets. The results obtained from the present study reveal that M. episquamalis, found on the scales of M. cephalus from Kerchensky preglass of the Black Sea, is new record for Russian waters.

Original languageEnglish (US)
Article number02014
JournalE3S Web of Conferences
Volume175
DOIs
StatePublished - Jun 29 2020
Event13th International Scientific and Practical Conference on State and Prospects for the Development of Agribusiness, INTERAGROMASH 2020 - Rostovon-Don, Russian Federation
Duration: Feb 26 2020 → …

ASJC Scopus subject areas

  • Environmental Science(all)
  • Energy(all)
  • Earth and Planetary Sciences(all)

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