Fisheries targets in Lake Tanganyika under the magnifying
glass: a look at their monogeneans.

a 2017

Fisheries targets in Lake Tanganyika under the magnifying glass: a look at their monogeneans.

KMENTOVÁ, Nikol; Maarten VAN STEENBERGE; J.A.M RAEYMAEKERS; Stephan KOBLMÜLLER; P.I. HABLÜTZEL et al.

Základní údaje

Originální název

Fisheries targets in Lake Tanganyika under the magnifying glass: a look at their monogeneans.

Autoři

Vydání

International Symposium of Monogenea, 2017

Další údaje

Jazyk

angličtina

Typ výsledku

Konferenční abstrakt

Obor

10600 1.6 Biological sciences

Stát vydavatele

Česká republika

Utajení

není předmětem státního či obchodního tajemství

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14310/17:00094950

Organizační jednotka

Přírodovědecká fakulta

ISBN

978-80-210-8665-4

Klíčová slova anglicky

clupeids;latids;population structure;demographic history;variability

Příznaky

Mezinárodní význam

Změněno: 13. 3. 2018 15:08, Mgr. Nikol Kmentová, Ph.D.

Anotace

V originále

Lake Tanganyika (LT) is one of the African biodiversity hotspots and its fishes are an important food source for local people. While most previous studies have focused on the lake’s spectacular largely endemic cichlid fauna, knowledge about the economically most important species is still poor. The fisheries effort is concentrated mainly on the lake’s pelagic zone, with two clupeids (Limnothrissa miodon, Stolothrissa tanganicae) and four latid species (Lates angustifrons, L. mariae, L. microlepis, L. stappersii) as dominant targets. We examined the abovementioned hosts for the presence of monogeneans to explore 1) which monogeneans infect clupeids and latids in LT, 2) freshwater parasite versus marine host origin and 3) seasonal, environmental and geographical gradients in intraspecific morphological variation and infection parameters. Samples originated from 25 localities in LT including all three historical subbasins. Monogenean species identification and delineation was based on the sclerotised structures, combined with molecular characterisation using nuclear and mitochondrial markers. The effect of host species, environmental, geographic and fixative on monogenean morphological intraspecific variability was tested. In total, 800 fish specimens were examined and infection of three different monogenean species was detected. While clupeids were infected by typically freshwater monogeneans assigned to the new genus called Kapentagyrus, three of the four latid species were parasitized by a representative of the marine genus Diplectanum. Phenomenon of lower monogenean host-specificity in pelagic zone of LT compared to littoral habitat was therefore enhanced by two monogenean genera from non-cichlid fishes. Seasonality in parasite prevalence on clupeids related to host species was observed. Moreover, morphological analyses of K. tanganicae indicated that phenotypic variation depended on host species. No shared infection trends of collected monogenean species in last 80 were detected. The parasite population structure inferred from part of the COI gene shows no north-south gradient. For future studies, the phylogeography of these parasites can reflect historical events that are too recent to be inferred from host genetics.

Návaznosti

GBP505/12/G112, projekt VaV

Název: ECIP - Evropské centrum ichtyoparazitologie

Investor: Grantová agentura ČR, ECIP - Evropské centrum ichtyoparazitologie

Citovat

KMENTOVÁ, Nikol; Maarten VAN STEENBERGE; J.A.M RAEYMAEKERS; Stephan KOBLMÜLLER; P.I. HABLÜTZEL; Milan GELNAR; F. MUTEREZI BUKINGA; T. MULIMBWA N'SIBULA; P. MASILYA MULUNGULA a Maarten Pieterjan VANHOVE. Fisheries targets in Lake Tanganyika under the magnifying glass: a look at their monogeneans. In International Symposium of Monogenea. 2017. ISBN 978-80-210-8665-4.

@proceedings{1390049,
   author = {Kmentová, Nikol and Van Steenberge, Maarten and Raeymaekers, J.A.M and Koblmüller, Stephan and Hablützel, P.I. and Gelnar, Milan and Muterezi Bukinga, F. and Mulimbwa N'sibula, T. and Masilya Mulungula, P. and Vanhove, Maarten Pieterjan},
   booktitle = {International Symposium of Monogenea},
   keywords = {clupeids;latids;population structure;demographic history;variability},
   language = {eng},
   isbn = {978-80-210-8665-4},
   title = {Fisheries targets in Lake Tanganyika under the magnifying glass: a look at their monogeneans.},
   year = {2017}
}

TY  - CONF
ID  - 1390049
AU  - Kmentová, Nikol - Van Steenberge, Maarten - Raeymaekers, J.A.M - Koblmüller, Stephan - Hablützel, P.I. - Gelnar, Milan - Muterezi Bukinga, F. - Mulimbwa N'sibula, T. - Masilya Mulungula, P. - Vanhove, Maarten Pieterjan
PY  - 2017
TI  - Fisheries targets in Lake Tanganyika under the magnifying glass: a look at their monogeneans.
SN  - 9788021086654
KW  - clupeids;latids;population structure;demographic history;variability
N2  - Lake Tanganyika (LT) is one of the African biodiversity hotspots and its fishes are an important food source for local people. While most previous studies have focused on the lake’s spectacular largely endemic cichlid fauna, knowledge about the economically most important species is still poor. The fisheries effort is concentrated mainly on the lake’s pelagic zone, with two clupeids (Limnothrissa miodon, Stolothrissa tanganicae) and four latid species (Lates angustifrons, L. mariae, L. microlepis, L. stappersii) as dominant targets. We examined the abovementioned hosts for the presence of monogeneans to explore 1) which monogeneans infect clupeids and latids in LT, 2) freshwater parasite versus marine host origin and 3) seasonal, environmental and geographical gradients in intraspecific morphological variation and infection parameters. Samples originated from 25 localities in LT including all three historical subbasins. Monogenean species identification and delineation was based on the sclerotised structures, combined with molecular characterisation using nuclear and mitochondrial markers. The effect of host species, environmental, geographic and fixative on monogenean morphological intraspecific variability was tested. In total, 800 fish specimens were examined and infection of three different monogenean species was detected. While clupeids were infected by typically freshwater monogeneans assigned to the new genus called Kapentagyrus, three of the four latid species were parasitized by a representative of the marine genus Diplectanum. Phenomenon of lower monogenean host-specificity in pelagic zone of LT compared to littoral habitat was therefore enhanced by two monogenean genera from non-cichlid fishes. Seasonality in parasite prevalence on clupeids related to host species was observed. Moreover, morphological analyses of K. tanganicae indicated that phenotypic variation depended on host species. No shared infection trends of collected monogenean species in last 80 were detected. The parasite population structure inferred from part of the COI gene shows no north-south gradient. For future studies, the phylogeography of these parasites can reflect historical events that are too recent to be inferred from host genetics.
ER  -

KMENTOVÁ, Nikol; Maarten VAN STEENBERGE; J.A.M RAEYMAEKERS; Stephan KOBLMÜLLER; P.I. HABLÜTZEL; Milan GELNAR; F. MUTEREZI BUKINGA; T. MULIMBWA N'SIBULA; P. MASILYA MULUNGULA a Maarten Pieterjan VANHOVE. Fisheries targets in Lake Tanganyika under the magnifying glass: a look at their monogeneans. In \textit{International Symposium of Monogenea}. 2017. ISBN~978-80-210-8665-4.

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