Underexplored diversity of gill monogeneans in cichlids from
Lake Tanganyika: eight new species of Cichlidogyrus Paperna,
1960 (Monogenea: Dactylogyridae) from the northern basin of the
lake, with remarks on the vagina and the heel of the male
copulatory organ

J 2017

Underexplored diversity of gill monogeneans in cichlids from Lake Tanganyika: eight new species of Cichlidogyrus Paperna, 1960 (Monogenea: Dactylogyridae) from the northern basin of the lake, with remarks on the vagina and the heel of the male copulatory organ

RAHMOUNI, Chahrazed, Maarten Pieterjan VANHOVE and Andrea VETEŠNÍKOVÁ ŠIMKOVÁ

Basic information

Original name

Underexplored diversity of gill monogeneans in cichlids from Lake Tanganyika: eight new species of Cichlidogyrus Paperna, 1960 (Monogenea: Dactylogyridae) from the northern basin of the lake, with remarks on the vagina and the heel of the male copulatory organ

Authors

RAHMOUNI, Chahrazed (12 Algeria, belonging to the institution), Maarten Pieterjan VANHOVE (56 Belgium, belonging to the institution) and Andrea VETEŠNÍKOVÁ ŠIMKOVÁ (203 Czech Republic, guarantor, belonging to the institution)

Edition

PARASITES AND VECTORS, LONDON, BIOMED CENTRAL LTD, 2017, 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: 3.163

RIV identification code

RIV/00216224:14310/17:00095402

Organization unit

Faculty of Science

DOI

http://dx.doi.org/10.1186/s13071-017-2460-6

UT WoS

000416965200001

Keywords in English

Africa; Burundi; Cichlidae; Cyprichromini; Ectodini; Eretmodini; Platyhelminthes; Monogenea; Cichlidogyrus

Abstract

V originále

Background: Lake Tanganyika harbours the most diverse cichlid assemblage of the Great African Lakes. Considering its cichlid flocks consist of approximately 250 endemic species, we can hypothesize a high species-richness in their often quite host-specific monogenean ectoparasites belonging to Cichlidogyrus Paperna, 1960. Yet, only 24 species were described from Tanganyikan hosts and some host tribes have never been investigated for monogeneans. This study presents the first parasitological examination of species of the tribes Cyprichromini (Cyprichromis microlepidotus (Poll, 1956)), Eretmodini (Eretmodus marksmithi Burgess, 2012 and Tanganicodus irsacae Poll, 1950) and Ectodini (Aulonocranus dewindti (Boulenger, 1899)). Specimens of the ectodine Ophthalmotilapia nasuta (Poll & Matthes, 1962) from which four Cichlidogyrus spp. have been previously described from more southern localities were also studied. Further, we discuss the haptor configuration in Tanganyikan Cichlidogyrus spp. and highlight the morphological diversity of the vagina, and that of the heel, a sclerotized part of the male copulatory organ, absent in some species of Cichlidogyrus. Methods: Cichlidogyrus spp. were isolated from gills and fixed using GAP. Haptoral and genital hard parts were measured and drawn by means of a phase contrast microscopic examination. Results: We describe eight new species: Cichlidogyrus milangelnari n. sp. on C. microlepidotus; C. jeanloujustinei n. sp. on E. marksmithi; C. evikae n. sp. on T. irsacae; C. aspiralis n. sp., C. glacicremoratus n. sp. and C. rectangulus n. sp. on O. nasuta; and C. pseudoaspiralis n. sp. and C. discophonum n. sp. on A. dewindti. Three haptoral morphotypes were recognized among the new species. Species of Cichlidogyrus from closely related hosts exhibited the same morphotypes. Geographical variation in Cichlidogyrus spp. fauna as observed in O. nasuta and three morphotypes were distinguished. Finally, we listed 111 Cichlidogyrus species, of which 27 and three Tanganyikan species lack sclerotized vagina and heel, respectively, just like 19 and seven species outside of the lake. Conclusions: Haptoral and genital features in the Tanganyikan Cichlidogyrus fauna reflect the phylogenetic relationships of their cichlid hosts. It seems that several lineages of Cichlidogyrus spp. exist in Lake Tanganyika but further studies are necessary to confirm this hypothesis and answer questions related to Lake Tanganyika and its cichlids.

Links

GBP505/12/G112, research and development project

Name: ECIP - Evropské centrum ichtyoparazitologie

Investor: Czech Science Foundation

Citovat

RAHMOUNI, Chahrazed, Maarten Pieterjan VANHOVE and Andrea VETEŠNÍKOVÁ ŠIMKOVÁ. Underexplored diversity of gill monogeneans in cichlids from Lake Tanganyika: eight new species of Cichlidogyrus Paperna, 1960 (Monogenea: Dactylogyridae) from the northern basin of the lake, with remarks on the vagina and the heel of the male copulatory organ. PARASITES AND VECTORS. LONDON: BIOMED CENTRAL LTD, 2017, vol. 10, December, p. nestránkováno, 21 pp. ISSN 1756-3305. Available from: https://dx.doi.org/10.1186/s13071-017-2460-6.

@article{1403504,
   author = {Rahmouni, Chahrazed and Vanhove, Maarten Pieterjan and Vetešníková Šimková, Andrea},
   article_location = {LONDON},
   article_number = {December},
   doi = {http://dx.doi.org/10.1186/s13071-017-2460-6},
   keywords = {Africa; Burundi; Cichlidae; Cyprichromini; Ectodini; Eretmodini; Platyhelminthes; Monogenea; Cichlidogyrus},
   language = {eng},
   issn = {1756-3305},
   journal = {PARASITES AND VECTORS},
   title = {Underexplored diversity of gill monogeneans in cichlids from Lake Tanganyika: eight new species of Cichlidogyrus Paperna, 1960 (Monogenea: Dactylogyridae) from the northern basin of the lake, with remarks on the vagina and the heel of the male copulatory organ},
   volume = {10},
   year = {2017}
}

TY  - JOUR
ID  - 1403504
AU  - Rahmouni, Chahrazed - Vanhove, Maarten Pieterjan - Vetešníková Šimková, Andrea
PY  - 2017
TI  - Underexplored diversity of gill monogeneans in cichlids from Lake Tanganyika: eight new species of Cichlidogyrus Paperna, 1960 (Monogenea: Dactylogyridae) from the northern basin of the lake, with remarks on the vagina and the heel of the male copulatory organ
JF  - PARASITES AND VECTORS
VL  - 10
IS  - December
SP  - nestránkováno
EP  - nestránkováno
PB  - BIOMED CENTRAL LTD
SN  - 17563305
KW  - Africa
KW  - Burundi
KW  - Cichlidae
KW  - Cyprichromini
KW  - Ectodini
KW  - Eretmodini
KW  - Platyhelminthes
KW  - Monogenea
KW  - Cichlidogyrus
N2  - Background: Lake Tanganyika harbours the most diverse cichlid assemblage of the Great African Lakes. Considering its cichlid flocks consist of approximately 250 endemic species, we can hypothesize a high species-richness in their often quite host-specific monogenean ectoparasites belonging to Cichlidogyrus Paperna, 1960. Yet, only 24 species were described from Tanganyikan hosts and some host tribes have never been investigated for monogeneans. This study presents the first parasitological examination of species of the tribes Cyprichromini (Cyprichromis microlepidotus (Poll, 1956)), Eretmodini (Eretmodus marksmithi Burgess, 2012 and Tanganicodus irsacae Poll, 1950) and Ectodini (Aulonocranus dewindti (Boulenger, 1899)). Specimens of the ectodine Ophthalmotilapia nasuta (Poll & Matthes, 1962) from which four Cichlidogyrus spp. have been previously described from more southern localities were also studied. Further, we discuss the haptor configuration in Tanganyikan Cichlidogyrus spp. and highlight the morphological diversity of the vagina, and that of the heel, a sclerotized part of the male copulatory organ, absent in some species of Cichlidogyrus. Methods: Cichlidogyrus spp. were isolated from gills and fixed using GAP. Haptoral and genital hard parts were measured and drawn by means of a phase contrast microscopic examination. Results: We describe eight new species: Cichlidogyrus milangelnari n. sp. on C. microlepidotus; C. jeanloujustinei n. sp. on E. marksmithi; C. evikae n. sp. on T. irsacae; C. aspiralis n. sp., C. glacicremoratus n. sp. and C. rectangulus n. sp. on O. nasuta; and C. pseudoaspiralis n. sp. and C. discophonum n. sp. on A. dewindti. Three haptoral morphotypes were recognized among the new species. Species of Cichlidogyrus from closely related hosts exhibited the same morphotypes. Geographical variation in Cichlidogyrus spp. fauna as observed in O. nasuta and three morphotypes were distinguished. Finally, we listed 111 Cichlidogyrus species, of which 27 and three Tanganyikan species lack sclerotized vagina and heel, respectively, just like 19 and seven species outside of the lake. Conclusions: Haptoral and genital features in the Tanganyikan Cichlidogyrus fauna reflect the phylogenetic relationships of their cichlid hosts. It seems that several lineages of Cichlidogyrus spp. exist in Lake Tanganyika but further studies are necessary to confirm this hypothesis and answer questions related to Lake Tanganyika and its cichlids.
ER  -

RAHMOUNI, Chahrazed, Maarten Pieterjan VANHOVE and Andrea VETEŠNÍKOVÁ ŠIMKOVÁ. Underexplored diversity of gill monogeneans in cichlids from Lake Tanganyika: eight new species of Cichlidogyrus Paperna, 1960 (Monogenea: Dactylogyridae) from the northern basin of the lake, with remarks on the vagina and the heel of the male copulatory organ. \textit{PARASITES AND VECTORS}. LONDON: BIOMED CENTRAL LTD, 2017, vol.~10, December, p.~nestránkováno, 21 pp. ISSN~1756-3305. Available from: https://dx.doi.org/10.1186/s13071-017-2460-6.

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