التفاصيل البيبلوغرافية
| العنوان: |
PARASITOFAUNA OF FIVE FRESHWATER FISHES IN A NIGERIAN FRESHWATER ECOSYSTEM. |
| العنوان البديل: |
PARAZITOFAUNA PET SLATKOVODNIH RIBA U NIGERIJSKOM SLATKOVODNOM EKOSUSTAVU. (Croatian) |
| المؤلفون: |
Ejere, Vincent Chikwendu, Aguzie, Oscar Ifeanyi, Ivoke, Njoku, Ekeh, Felicia Nkechi, Ezenwaji, Ngozi Evelyn, Onoja, Uwakwe Simon, Eyo, Joseph Effiong |
| المصدر: |
Croatian Journal of Fisheries; 2014, Vol. 72 Issue 1, p17-24, 8p |
| مصطلحات موضوعية: |
FRESHWATER fishes, TILAPIA zillii, FISH parasites, PARASITOLOGY, METAZOA |
| مصطلحات جغرافية: |
DELTA State (Nigeria) |
| الملخص (بالإنجليزية): |
The parasitic fauna of freshwater fishes of the Warri River, Delta State, Nigeria, with reference to their prevalence, intensity and differences in metazoan parasites between fish sexes, was investigated. A total of 85 fish samples comprising of 21 Tilapia zillii (Cichlidae: Perciformes), 23 Synodontis clarias (Mochokidae: Siluriformes), 23 Chrysichthys nigrodigitatus (Claroteidae: Siluriformes), 16 Hepsetus odoe (Hepsetidae: Characiformes) and 2 Clarias anguillaris (Clariidae: Siluriformes) collected from the Warri River, Delta State, Nigeria, were subjected to parasitological examination. The overall metazoan parasite prevalence was 32.9%. The metazoan parasites recovered were mainly the acanthocephalans: Neoechinorhynchus prolixum, Pomphorhynchus spp., Acanthocephalus spp. and unidentified acanthocephalan, and nematodes: Camallanus polypteri, Capillaria pterophylli, C. cichlasomae, Procamallanus laeviconchus, Philometroides africanus and Railletnema synodontis. Although the acanthocephalans constituted 75.6% and nematodes 22.2% of the parasites recovered, the nematodes had the highest prevalence (23.5%) compared to the acanthocephalans (9.4%). Similarly, variable prevalences were observed for the other metazoan parasite taxa recovered, namely trematoda; Clinostomum complanatum (1.2%), Leech; Pisciola geometra (2.4%) and Crustaceans (1.2%). The highest parasite prevalence (39.1%) was observed in S. clarias, while the least (23.8%) was observed in T. zillii. Generally, the prevalence of parasites was higher in female (35.7%) than in the males (31.6%), although statistically no significant difference was observed in the prevalence by sex (X2 = 0.145, P = 0.807). The relatively high overall parasite prevalence in fishes inhabiting the Warri River may be attributed to the relatively high level of pollution. [ABSTRACT FROM AUTHOR] |
| Abstract (Croatian): |
Ovo istraživanje bavi se proučavanjem parazitofaune slatkovodnih riba iz rijeke Warri u državi Delti u Nigeriji s obzirom na zastupljenost, intenzitet pojave i razlike u višestaničnim parazitima kod različitih spolova. Parazitološkom pregledu podvrgnuto je ukupno 85 jedinki ribe iz rijeke Warri u državi Delti u Nigeriji: 21 Tilapia zillii (Cichlidae: Perciformes), 23 Synodontis clarias (Mochokidae: Siluriformes), 23 Chrysichthys nigrodigitatus (Claroteidae: Siluriformes), 16 Hepsetus odoe (Hepsetidae: Characiformes) i dvije Clarias anguillaris (Clariidae: Siluriformes). Ukupna zastupljenost višestaničnih parazita bila je 32,9%. Otkriveni višestanični paraziti uglavnom su bili akantocefali, Neoechinorhynchus prolixum, Pomphorhynchus spp., Acanthocephalus spp., a isto tako i neidentificirani akantocefali i nematode, Camallanus polypteri, Capillaria pterophylli, C. cichlasomae, Procamallanus laeviconchus, Philometroides africanus i Railletnema synodontis. Među otkrivenim parazitima akantocefala je bilo 75,6%, a nematoda 22,2%, no usprkos manjem postotku, nematode su imale veću zastupljenost (23,5%) u usporedbi s akantocefalima (9,4%). Isto tako, praćena je i zastupljenost drugog višestaničnog parazitatrematoda (metilja): Clinostomum complanatum (1,2%), zatim pijavica (Leech); Pisciola geometra (2,4%) i račića (Crustaceans) (1,2%). Najveća zastupljenost parazita zabilježena je kod S. Clarias, a najmanja (23,8%) kod T. zillii. Sveukupno gledajući, zastupljenost parazita bila je veća kod ženki (35,7%) nego kod mužjaka (31,6%), iako statistički nema velike razlike u zastupljenosti parazita po spolu (X2 = 0,145, P = 0,807). Relativno visoka ukupna zastupljenost parazita kod riba može se pripisati relativno visokoj razini onečišćenja. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
