Parasites of endemic and introduced cichlid fish in Madagascar

a 2017

Parasites of endemic and introduced cichlid fish in Madagascar

VETEŠNÍKOVÁ ŠIMKOVÁ, Andrea; Eva ŘEHULKOVÁ and Maarten Pieterjan VANHOVE

Basic information

Original name

Parasites of endemic and introduced cichlid fish in Madagascar

Authors

VETEŠNÍKOVÁ ŠIMKOVÁ, Andrea; Eva ŘEHULKOVÁ and Maarten Pieterjan VANHOVE

Edition

Cichlid Science Meeting 2017, Prague, 4-7 September 2017, 2017

Other information

Language

English

Type of outcome

Conference abstract

Field of Study

10613 Zoology

Country of publisher

Czech Republic

Confidentiality degree

is not subject to a state or trade secret

Marked to be transferred to RIV

Yes

RIV identification code

RIV/00216224:14310/17:00095549

Organization unit

Faculty of Science

Keywords in English

parasites; endemic cichlids; introduced fish; Madagascar

Changed: 6/3/2018 18:27, prof. RNDr. Andrea Vetešníková Šimková, PhD.

Abstract

In the original language

The endemic cichlid species of Madagascar represent the 5 following genera: Paretroplus, Paratilapia, Ptychochromis, Ptychochromoides and Oxylapia with 20 valid species and another probably 10 undescribed species. The recent knowledge on the native parasitofauna of Malagasy freshwater fish is very limited. We investigated the metazoan parasites of native and introduced cichlid species living in the northern part of Madagascar. Four regions - National Park Ankarafantsika, Anjingo, the Lakes of Mont Passot and Andevoranto - were sampled for cichlid species. Concerning the cichlids introduced from mainland Africa, 3 species were investigated for parasites: Oreochromis niloticus, O. mossambicus, Coptodon rendalli. Other 7 cichlid species endemic to Madagascar were investigated for the presence of metazoan parasites: Paratilapia lamena, Paratilapia sp. 1, Paratilapia sp. 2, Ptychochromis grandidieri, Ptychochromis sp. 1, Ptychochromis sp. 2 and Paretroplus polyactis. Monogenea (mainly gill ectoparasites) was the parasite group with the highest prevalence in cichlid species but with low or moderate intensity of infection. On the other hand, Cestoda reached generally moderate prevalence but in some cases very high intensity of infection in cichlids introduced from Africa when compared to endemic cichlids. Only endemic cichlids in the last region studied were highly infected by copepods. In general, our study indicates that the abundance of endemic cichlids is weak and they are likely outcompeted by cichlid species introduced from Africa. Our study reveals the risk of cichlid introduction for native endemic cichlids as we found that native endemic cichlids are susceptible to parasite species originated from Africa or Asia. Five Cichlidogyrus species (C. halli, C. sclerosus, C. thurstonae, C. tiberianus and C. tilapiae) and Scutogyrus longicornis (Monogenea) were introduced to Madagascar with their African cichlid hosts. C. tilapiae in endemic cichlids even exceeded the intensity of infection on cichlids introduced from Africa. Two endemic monogeneans were present strictly in endemic cichlids and only in Andevoranto: Insulacleidus paretropli in P. polyactis and I. ptychochromidis in P. grandidieri were identified.

Links

GBP505/12/G112, research and development project

Name: ECIP - Evropské centrum ichtyoparazitologie

Investor: Czech Science Foundation

Cite

VETEŠNÍKOVÁ ŠIMKOVÁ, Andrea; Eva ŘEHULKOVÁ and Maarten Pieterjan VANHOVE. Parasites of endemic and introduced cichlid fish in Madagascar. In Cichlid Science Meeting 2017, Prague, 4-7 September 2017. 2017.

@proceedings{1410181,
   author = {Vetešníková Šimková, Andrea and Řehulková, Eva and Vanhove, Maarten Pieterjan},
   booktitle = {Cichlid Science Meeting 2017, Prague, 4-7 September 2017},
   keywords = {parasites; endemic cichlids; introduced fish; Madagascar},
   language = {eng},
   title = {Parasites of endemic and introduced cichlid fish in Madagascar},
   year = {2017}
}

TY  - CONF
ID  - 1410181
AU  - Vetešníková Šimková, Andrea - Řehulková, Eva - Vanhove, Maarten Pieterjan
PY  - 2017
TI  - Parasites of endemic and introduced cichlid fish in Madagascar
KW  - parasites
KW  - endemic cichlids
KW  - introduced fish
KW  - Madagascar
N2  - The endemic cichlid species of Madagascar represent the 5 following genera: Paretroplus, Paratilapia, Ptychochromis, Ptychochromoides and Oxylapia with 20 valid species and another probably 10 undescribed species. The recent knowledge on the native parasitofauna of Malagasy freshwater fish is very limited. We investigated the metazoan parasites of native and introduced cichlid species living in the northern part of Madagascar. Four regions - National Park Ankarafantsika, Anjingo, the Lakes of Mont Passot and Andevoranto - were sampled for cichlid species. Concerning the cichlids introduced from mainland Africa, 3 species were investigated for parasites: Oreochromis niloticus, O. mossambicus, Coptodon rendalli. Other 7 cichlid species endemic to Madagascar were investigated for the presence of metazoan parasites: Paratilapia lamena, Paratilapia sp. 1, Paratilapia sp. 2, Ptychochromis grandidieri, Ptychochromis sp. 1, Ptychochromis sp. 2 and Paretroplus polyactis. Monogenea (mainly gill ectoparasites) was the parasite group with the highest prevalence in cichlid species but with low or moderate intensity of infection. On the other hand, Cestoda reached generally moderate prevalence but in some cases very high intensity of infection in cichlids introduced from Africa when compared to endemic cichlids. Only endemic cichlids in the last region studied were highly infected by copepods. In general, our study indicates that the abundance of endemic cichlids is weak and they are likely outcompeted by cichlid species introduced from Africa. Our study reveals the risk of cichlid introduction for native endemic cichlids as we found that native endemic cichlids are susceptible to parasite species originated from Africa or Asia. Five Cichlidogyrus species (C. halli, C. sclerosus, C. thurstonae, C. tiberianus and C. tilapiae) and Scutogyrus longicornis (Monogenea) were introduced to Madagascar with their African cichlid hosts. C. tilapiae in endemic cichlids even exceeded the intensity of infection on cichlids introduced from Africa. Two endemic monogeneans were present strictly in endemic cichlids and only in Andevoranto: Insulacleidus paretropli in P. polyactis and I. ptychochromidis in P. grandidieri were identified.
ER  -

VETEŠNÍKOVÁ ŠIMKOVÁ, Andrea; Eva ŘEHULKOVÁ and Maarten Pieterjan VANHOVE. Parasites of endemic and introduced cichlid fish in Madagascar. In \textit{Cichlid Science Meeting 2017, Prague, 4-7 September 2017}. 2017.

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