Deep-water parasite diversity in Lake Tanganyika: description
of two new monogenean species from benthopelagic cichlid fishes

J 2016

Deep-water parasite diversity in Lake Tanganyika: description of two new monogenean species from benthopelagic cichlid fishes

KMENTOVÁ, Nikol, Milan GELNAR, Stephan KOBLMÜLLER and Maarten Pieterjan VANHOVE

Basic information

Original name

Deep-water parasite diversity in Lake Tanganyika: description of two new monogenean species from benthopelagic cichlid fishes

Authors

KMENTOVÁ, Nikol (203 Czech Republic, belonging to the institution), Milan GELNAR (203 Czech Republic, guarantor, belonging to the institution), Stephan KOBLMÜLLER (40 Austria) and Maarten Pieterjan VANHOVE (56 Belgium, belonging to the institution)

Edition

Parasites & Vectors, London, 2016, 1756-3305

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10600 1.6 Biological sciences

Country of publisher

United Kingdom of Great Britain and Northern Ireland

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 3.035

RIV identification code

RIV/00216224:14310/16:00088143

Organization unit

Faculty of Science

DOI

http://dx.doi.org/10.1186/s13071-016-1696-x

UT WoS

000381193500001

Keywords in English

Benthochromis horii; Cichlidae; Cichlidogyrus; Monogenea; Trematocara unimaculatum

Abstract

V originále

Background: Lake Tanganyika is the world's second deepest lake. Its diverse cichlid assemblage offers a unique opportunity for studying a deep-water host-parasite model in freshwater. Low host specificity and a broad host range including representatives of the Bathybatini tribe in the only monogenean parasite described from this habitat, Cichlidogyrus casuarinus Pariselle, Muterezi Bukinga & Vanhove, 2015 suggest a link between lower specificity and lower host density. Conversely, high host specificity and species richness are reported for monogeneans of the lake's littoral cichlids. We further investigated whether the deep-water environment in Lake Tanganyika is really monogenean species-depauperate by investigating the monogenean fauna of Trematocara unimaculatum (a representative of the tribe Trematocarini, the sister lineage of the Bathybatini) and Benthochromis horii, a member of the tribe Benthochromini, found in the same deep-water habitat as the already known hosts of C. casuarinus. Methods: Sclerotised structures of the collected monogenean individuals were characterised morphologically using light microscopy and morphometrics. Results: Both examined cichlid species are infected by a single monogenean species each, which are new to science. They are described as Cichlidogyrus brunnensis n. sp., infecting T. unimaculatum, and Cichlidogyrus attenboroughi n. sp., parasitising on B. horii. Diagnostic characteristics include the distal bifurcation of the accessory piece in C. brunnensis n. sp. and the combination of long auricles and no heel in C. attenboroughi n. sp. In addition C. brunnensis n. sp. does not resemble C. casuarinus, the only species of Cichlidogyrus thus far reported from the Bathybatini. Also Cichlidogyrus attenboroughi n. sp. does not resemble any of the monogenean species documented from the pelagic zone of the lake and is among the few described species of Cichlidogyrus without heel. Conclusions: As two new and non-resembling Cichlidogyrus species are described from T. unimaculatum and B. horii, colonisation of the deep-water habitat by more than one morphotype of Cichlidogyrus is evident. Based on morphological comparisons with previously described monogenean species, parasite transfers with the littoral zone are possible. Therefore, parasites of pelagic cichlids in the lake do not seem to only mirror host phylogeny and the evolutionary history of this host-parasite system merits further attention.

Links

GBP505/12/G112, research and development project

Name: ECIP - Evropské centrum ichtyoparazitologie

Investor: Czech Science Foundation

Citovat

KMENTOVÁ, Nikol, Milan GELNAR, Stephan KOBLMÜLLER and Maarten Pieterjan VANHOVE. Deep-water parasite diversity in Lake Tanganyika: description of two new monogenean species from benthopelagic cichlid fishes. Parasites & Vectors. London, 2016, vol. 9, August, p. "nestrankovano", 9 pp. ISSN 1756-3305. Available from: https://dx.doi.org/10.1186/s13071-016-1696-x.

@article{1354048,
   author = {Kmentová, Nikol and Gelnar, Milan and Koblmüller, Stephan and Vanhove, Maarten Pieterjan},
   article_location = {London},
   article_number = {August},
   doi = {http://dx.doi.org/10.1186/s13071-016-1696-x},
   keywords = {Benthochromis horii; Cichlidae; Cichlidogyrus; Monogenea; Trematocara unimaculatum},
   language = {eng},
   issn = {1756-3305},
   journal = {Parasites & Vectors},
   title = {Deep-water parasite diversity in Lake Tanganyika: description of two new monogenean species from benthopelagic cichlid fishes},
   volume = {9},
   year = {2016}
}

TY  - JOUR
ID  - 1354048
AU  - Kmentová, Nikol - Gelnar, Milan - Koblmüller, Stephan - Vanhove, Maarten Pieterjan
PY  - 2016
TI  - Deep-water parasite diversity in Lake Tanganyika: description of two new monogenean species from benthopelagic cichlid fishes
JF  - Parasites & Vectors
VL  - 9
IS  - August
SP  - "nestrankovano"
EP  - "nestrankovano"
SN  - 17563305
KW  - Benthochromis horii
KW  - Cichlidae
KW  - Cichlidogyrus
KW  - Monogenea
KW  - Trematocara unimaculatum
N2  - Background: Lake Tanganyika is the world's second deepest lake. Its diverse cichlid assemblage offers a unique opportunity for studying a deep-water host-parasite model in freshwater. Low host specificity and a broad host range including representatives of the Bathybatini tribe in the only monogenean parasite described from this habitat, Cichlidogyrus casuarinus Pariselle, Muterezi Bukinga & Vanhove, 2015 suggest a link between lower specificity and lower host density. Conversely, high host specificity and species richness are reported for monogeneans of the lake's littoral cichlids. We further investigated whether the deep-water environment in Lake Tanganyika is really monogenean species-depauperate by investigating the monogenean fauna of Trematocara unimaculatum (a representative of the tribe Trematocarini, the sister lineage of the Bathybatini) and Benthochromis horii, a member of the tribe Benthochromini, found in the same deep-water habitat as the already known hosts of C. casuarinus. Methods: Sclerotised structures of the collected monogenean individuals were characterised morphologically using light microscopy and morphometrics. Results: Both examined cichlid species are infected by a single monogenean species each, which are new to science. They are described as Cichlidogyrus brunnensis n. sp., infecting T. unimaculatum, and Cichlidogyrus attenboroughi n. sp., parasitising on B. horii. Diagnostic characteristics include the distal bifurcation of the accessory piece in C. brunnensis n. sp. and the combination of long auricles and no heel in C. attenboroughi n. sp. In addition C. brunnensis n. sp. does not resemble C. casuarinus, the only species of Cichlidogyrus thus far reported from the Bathybatini. Also Cichlidogyrus attenboroughi n. sp. does not resemble any of the monogenean species documented from the pelagic zone of the lake and is among the few described species of Cichlidogyrus without heel. Conclusions: As two new and non-resembling Cichlidogyrus species are described from T. unimaculatum and B. horii, colonisation of the deep-water habitat by more than one morphotype of Cichlidogyrus is evident. Based on morphological comparisons with previously described monogenean species, parasite transfers with the littoral zone are possible. Therefore, parasites of pelagic cichlids in the lake do not seem to only mirror host phylogeny and the evolutionary history of this host-parasite system merits further attention.
ER  -

KMENTOVÁ, Nikol, Milan GELNAR, Stephan KOBLMÜLLER and Maarten Pieterjan VANHOVE. Deep-water parasite diversity in Lake Tanganyika: description of two new monogenean species from benthopelagic cichlid fishes. \textit{Parasites \&{} Vectors}. London, 2016, vol.~9, August, p.~''nestrankovano'', 9 pp. ISSN~1756-3305. Available from: https://dx.doi.org/10.1186/s13071-016-1696-x.

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