Gastro-intestinal helminths of goliath frogs ( Conraua goliath ) from the localities of Loum, Yabassi and Nkondjock in the Littoral Region of Cameroon

Daniel, Nguiffo Nguete; Josué, Wabo Pone; Mbida, Mpoame

doi:10.1016/j.gecco.2015.06.009

Cited by 6 publications

(2 citation statements)

References 9 publications

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“…Studies on the parasites of amphibians in West Africa date back to the 1920s, with more investigations undertaken in Francophone countries (Bénin, Cameroon, Central African Republic, Gabon, Ivory Coast, Togo) [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16]. These studies were purely descriptive, with emphasis on the flatworms (monogeneans and digeneans) parasitizing anurans in these countries.…”

Section: Introductionmentioning

confidence: 99%

“…The paper by Durette-Desset and Batcharov [8] was an exception in that it described two nematodes (Gendria leberrei and Camallanus dimitrovi) recovered from amphibians in Togo. A more recent paper by Daniel et al [16] reported on the gastro-intestinal parasites of Conraua goliath in the littoral region of Cameroon, which recorded eight nematodes, two digeneans and a pentastomid. Far fewer studies were undertaken in Anglophone West Africa [17,18].…”

Section: Introductionmentioning

confidence: 99%

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Ecological Scenarios and Parasite Diversity in Anurans of West Africa: A Review

2021

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This paper is a survey of the parasite diversity, prevalence and infection intensity in anurans in diverse ecological settings in West Africa. The settings included natural habitats (rainforests, freshwater creeks, Guinea and Sudan savannas), monoculture plantations (cocoa, cotton and oil palm), urbanized and urbanizing rainforest biotopes and polluted environments due to oil industry activities. The natural habitats had higher amphibian species diversity, moderate parasite prevalence and low infection intensity, showing a balance in the host/parasite relationship. These habitats yielded most of the monogeneans, among which were new species. The freshwater creek biotope had low amphibian diversity, but hosts from this environment harbored several parasite taxa, a situation attributed to a prolonged wet season, high environmental humidity and persistent breeding pools for insect vectors in this area. The monoculture plantations were characterized by high parasite prevalence but lower infection intensity. For example, in the Pendjari Biosphere Reserve in Bénin Republic, the Agricultural Zone (AZ) had higher parasite prevalence values, while the National Park (NP) and Buffer Zone (BZ) had higher infection intensities. Higher prevalence was attributed to the single or combined effects of vector population explosion, immune-suppression by agrochemicals, nutrient enrichment and eutrophication from fertilizer use. The lower infection intensity was attributed to the inhibitory effect of the pesticide-contaminated environment on the free-living larval stages of parasites. The adverse effect of pesticide contamination was also evident in the lower infection intensity recorded in the anurans from the cocoa plantations at Ugboke in comparison to those from the pesticide-free village settlement. Urbanization reduced host diversity and numbers and increased the vector population, resulting in unusually high parasite prevalence and infection intensities at Diobu and Port Harcourt and high prevalence recorded for Ophidascaris larvae in the anurans of Evbuabogun. Oil pollution in the mangrove community reduced both host and parasite diversity; infection intensity was also low due to the adverse conditions confronting free-living stages of parasites in their development milieu. The high prevalence values obtained for monogeneans (Polystoma spp.) in Ptychadena spp. from Ogoniland was presumed to have resulted from host tadpole sequestration and exposure to high oncomiracidia burden in the few hospitable ponds. Also reviewed is the phenomenon of amphibian paratenism, a strategy on which many helminth parasites rely on for their trophic transmission to their definitive hosts.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Ecological Scenarios and Parasite Diversity in Anurans of West Africa: A Review

2021

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Amphibiophilus mooiensis n. sp. (Nematoda: Amphibiophilidae), a parasite of Amietia delalandii (Duméril & Bibron) (Amphibia: Pyxicephalidae) from South Africa

Svitin

Preez

2017

Syst Parasitol

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Four species of the genus Amphibiophilus Skrjabin, 1916 from pyxycephalid frogs in southern and central Africa are currently recognised as valid. Several specimens of Amphibiophilus were found in material from the common river frog, Amietia delalandii (Duméril & Bibron) (Amphibia: Pyxicephalidae), collected in Potchefstroom (North-West Province, South Africa). These specimens clearly differ from all previously known species by the shape of the distal end of the spicule, the shape of the gubernaculum and the structure of the synlophe. They are, thus, considered as a new species, Amphibiophilus mooiensis. As all other species in the family Amphibiophilidae Durette-Desset & Chabaud, 1981, A. mooiensis n. sp. possesses a number of archaic characters, such as a buccal capsule with a well-developed dorsal oesophageal tooth, six inner labial papillae, six outer labial papillae and four cephalic papillae. Molecular data (cox1 and ITS-28S rDNA sequences) are provided and host and geographical specificity are discussed.

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