a 2015

Seasonal compositions of monogenean parasites from Psedocrenilabrus philander (Weber, 1897) in the middle Limpopo River Basin (South African region)

WALTER, Irene, Wilmien LUUS-POWELL, Maxwell BARSON a Iva PŘIKRYLOVÁ

Základní údaje

Originální název

Seasonal compositions of monogenean parasites from Psedocrenilabrus philander (Weber, 1897) in the middle Limpopo River Basin (South African region)

Název anglicky

Seasonal compositions of monogenean parasites from Psedocrenilabrus philander (Weber, 1897) in the middle Limpopo River Basin (South African region)

Autoři

WALTER, Irene (716 Zimbabwe), Wilmien LUUS-POWELL (710 Jižní Afrika), Maxwell BARSON (716 Zimbabwe) a Iva PŘIKRYLOVÁ (203 Česká republika, garant, domácí)

Vydání

Zoological Days 2015, 2015

Další údaje

Jazyk

čeština

Typ výsledku

Konferenční abstrakt

Obor

10600 1.6 Biological sciences

Stát vydavatele

Česká republika

Utajení

není předmětem státního či obchodního tajemství

Kód RIV

RIV/00216224:14310/15:00081562

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova anglicky

parasites;

Příznaky

Mezinárodní význam
Změněno: 11. 2. 2016 12:15, Mgr. Iva Přikrylová, Ph.D.

Anotace

V originále

The Southern mouthbrooder, P. philander, with its opalescent blue and pale yellow colours could become an important ornamental fish. Its distribution in southern African region covers the Orange River and southern KwaZulu-Natal Province northwards throughout the region and extends to southern Congo tributaries and Lake Malawi. In South Africa, P. philandar has been spread unnaturally since its introduction in 1941, as a consequence of the transportantion beyond limit of native range and direct releasing into novel environments. Fish were collected using an electroshocker during two seasons, July 2013 (winter, W) and January 2014 (summer, S), from two sampling spots, representing tributaries of Limpopo River from both Zimbabwean (ZIM) and South African (SA) sides where 20 specimens from each locality and sampling season were sampled. The localities were Nwanedi River, Nwanedi Nature Reserve (SA) and Bubi River, Bubiana Conservatory (ZIM). The fish were examined in a field laboratory and recovered monogeneans were fixed in glycerin ammonium picrate solution. Morphometric analysis of the hard structures of the attachment organs and male copulatory organs reaveled presence of monogenean parasites representing three genera. The only species of viviparous parasites of the genus Gyrodactylus von Nordmann, 1832 was recorded from the fins during the summer in SA and from only one fish. In the stomach, the infections of endoparasitic monogeneans of the genus Enterogyrus Paperna, 1963 were recorded in S-SA and W-ZIM with a prevalence of 35% in both cases, and identified as Enterogyrus coronatus Pariselle, Lambert & Euzet, 1991. Four species of the genus Cichlidogyrus Paperna, 1960 were recorded from the gills. The species composition and prevalences differed significantly between the localities and sampling seasons.

Anglicky

The Southern mouthbrooder, P. philander, with its opalescent blue and pale yellow colours could become an important ornamental fish. Its distribution in southern African region covers the Orange River and southern KwaZulu-Natal Province northwards throughout the region and extends to southern Congo tributaries and Lake Malawi. In South Africa, P. philandar has been spread unnaturally since its introduction in 1941, as a consequence of the transportantion beyond limit of native range and direct releasing into novel environments. Fish were collected using an electroshocker during two seasons, July 2013 (winter, W) and January 2014 (summer, S), from two sampling spots, representing tributaries of Limpopo River from both Zimbabwean (ZIM) and South African (SA) sides where 20 specimens from each locality and sampling season were sampled. The localities were Nwanedi River, Nwanedi Nature Reserve (SA) and Bubi River, Bubiana Conservatory (ZIM). The fish were examined in a field laboratory and recovered monogeneans were fixed in glycerin ammonium picrate solution. Morphometric analysis of the hard structures of the attachment organs and male copulatory organs reaveled presence of monogenean parasites representing three genera. The only species of viviparous parasites of the genus Gyrodactylus von Nordmann, 1832 was recorded from the fins during the summer in SA and from only one fish. In the stomach, the infections of endoparasitic monogeneans of the genus Enterogyrus Paperna, 1963 were recorded in S-SA and W-ZIM with a prevalence of 35% in both cases, and identified as Enterogyrus coronatus Pariselle, Lambert & Euzet, 1991. Four species of the genus Cichlidogyrus Paperna, 1960 were recorded from the gills. The species composition and prevalences differed significantly between the localities and sampling seasons.

Návaznosti

GBP505/12/G112, projekt VaV
Název: ECIP - Evropské centrum ichtyoparazitologie
Investor: Grantová agentura ČR, ECIP - Evropské centrum ichtyoparazitologie