{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,1]],"date-time":"2026-09-01T09:43:03Z","timestamp":1788255783462,"version":"build-2803163510"},"reference-count":44,"publisher":"Cambridge University Press (CUP)","issue":"2","license":[{"start":{"date-parts":[[2024,4,12]],"date-time":"2024-04-12T00:00:00Z","timestamp":1712880000000},"content-version":"unspecified","delay-in-days":7986,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J. Helminthol."],"published-print":{"date-parts":[[2002,6]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>The parasitic fauna of two fish species, namely gill-netted samples of 652 <jats:italic>Oreochromis leucostictus<\/jats:italic> and 448 <jats:italic>Tilapia zillii<\/jats:italic> from Lake Naivasha and Oloidien Bay was investigated during the period from the end of October 1995 to September 1996. Five larval helminth parasites were recovered including the nematode, <jats:italic>Contracaecum<\/jats:italic> sp., the acanthocephalan <jats:italic>Polyacanthorhynchus kenyensis<\/jats:italic>, the digenetic trematode, <jats:italic>Clinostomum<\/jats:italic> sp. and two cestodes, <jats:italic>Amirthalingamia<\/jats:italic> sp. and <jats:italic>Cyclustera<\/jats:italic> sp. Both prevalence and intensity of the infection of these helminths increased in larger sized fish, whereas male fish were more heavily infected than females. No seasonality in infection level were observed. The health status of both fish species remained unaffected, although <jats:italic>O. leucostictus<\/jats:italic> from Oloidien Bay which harboured heavy infections of <jats:italic>Contracaecum<\/jats:italic> exhibited stuntedness and the lack of fatty deposits around the digestive caecum.<\/jats:p>","DOI":"10.1079\/joh2001105","type":"journal-article","created":{"date-parts":[[2003,2,26]],"date-time":"2003-02-26T17:47:22Z","timestamp":1046281642000},"page":"95-102","source":"Crossref","is-referenced-by-count":36,"title":["A comparative study of helminth parasites from the fish <i>Tilapia zillii<\/i> and <i>Oreochromis leucostictus<\/i> in Lake Naivasha and Oloidien Bay, Kenya"],"prefix":"10.1017","volume":"76","author":[{"given":"P.A.","family":"Aloo","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"56","published-online":{"date-parts":[[2024,4,12]]},"reference":[{"key":"S0022149X00701738_ref033","unstructured":"Paperna, I. 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