New species of Dermoergasilus Ho & Do, 1982 (Copepoda: Cyclopoida: Ergasilidae) parasitizing endemic cichlid Paretroplus polyactis (Bleeker) in Madagascar

MÍČ, Robert, Eva ŘEHULKOVÁ, Andrea VETEŠNÍKOVÁ ŠIMKOVÁ, Jeanne-Rasamy RAZANABOLANA and Mária SEIFERTOVÁ. New species of Dermoergasilus Ho & Do, 1982 (Copepoda: Cyclopoida: Ergasilidae) parasitizing endemic cichlid Paretroplus polyactis (Bleeker) in Madagascar. Parasitology. Cambridge University Press, 2024, vol. 151, No 3, p. 319-336. ISSN 0031-1820. Available from: https://dx.doi.org/10.1017/S0031182024000088.

Basic information

• Original name: New species of Dermoergasilus Ho & Do, 1982 (Copepoda: Cyclopoida: Ergasilidae) parasitizing endemic cichlid Paretroplus polyactis (Bleeker) in Madagascar
• Authors: MÍČ, Robert (203 Czech Republic, belonging to the institution), Eva ŘEHULKOVÁ (203 Czech Republic, belonging to the institution), Andrea VETEŠNÍKOVÁ ŠIMKOVÁ (203 Czech Republic, belonging to the institution), Jeanne-Rasamy RAZANABOLANA (450 Madagascar) and Mária SEIFERTOVÁ (703 Slovakia, belonging to the institution).
• Edition: Parasitology, Cambridge University Press, 2024, 0031-1820.

Other information

• Original language: English
• Type of outcome: Article in a journal
• Field of Study: 10600 1.6 Biological sciences
• Country of publisher: United Kingdom of Great Britain and Northern Ireland
• Confidentiality degree: is not subject to a state or trade secret
• WWW: URL
• Impact factor: Impact factor: 2.400 in 2022
• Organization unit: Faculty of Science
• Doi: http://dx.doi.org/10.1017/S0031182024000088
• UT WoS: 001159981400001
• Keywords (in Czech): parazitičtí korýši; Madagaskar; cichlidy; diverzita; Dermoergasilus; Ergasilidae; rDNA; COI; fylogeneze
• Keywords in English: parasitic crustaceans; Madagascar; cichlids; diversity; Dermoergasilus; Ergasilidae; rDNA; COI; phylogeny
• Tags: rivok
• Tags: International impact, Reviewed

Abstract

Dermoergasilus madagascarensis n. sp. is described from the gills of Paretroplus polyactis, an endemic cichlid fish in Madagascar, using a combined morphological (light microscopy and SEM) and molecular approach (partial 18S rDNA, 28S rDNA, and COI sequences). The new species is characterized mainly by possessing: (i) roughly pentagonal cephalosome; (ii) antennal endopodal segments covered with slightly inflated membrane; (iii) maxillule bearing two equally long outer setae and a minute inner seta; (iv) interpodal sternites of swimming legs ornamented with 3 - 4 rows of spinules; (v) genital segment and first abdominal somite both barrel-shaped; and (vi) a caudal ramus projecting into a digitiform process with inconspicuous terminal seta and bearing three terminal setae. The obtained DNA sequences of Malagasy species represent the first molecular data for species of Dermoergasilus. The 28S rDNA phylogeny showed the affiliation of D. madagascarensis n. sp. to Ergasilidae and its sister relationship with cosmopolitan Ergasilus sieboldi von Nordmann, 1832. The first checklist for all species of Dermoergasilus is provided.

Links

• GBP505/12/G112, research and development project: Name: ECIP - Evropské centrum ichtyoparazitologie

Investor: Czech Science Foundation

• MUNI/A/1422/2022, interní kód MU: Name: Ekologické faktory a evoluční mechanismy determinující strukturu a funkci biotických společenstev a symbiotických systémů

Investor: Masaryk University, Ecological factors and evolutionary mechanisms determining the structure and function of biotic communities and symbiotic systems