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The metazoan ecto‐ and endoparasites of the rabbitfish, Siganus sutor (Cuvier & Valenciennes, 1835) of the Kenyan coast. I
Author(s) -
MARTENS E.,
MOENS J.
Publication year - 1995
Publication title -
african journal of ecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.499
H-Index - 54
eISSN - 1365-2028
pISSN - 0141-6707
DOI - 10.1111/j.1365-2028.1995.tb01049.x
Subject(s) - biology , digenea , acanthocephala , isopoda , zoology , monogenea , population , ecology , fishery , helminths , fish <actinopterygii> , crustacean , trematoda , gill , demography , sociology
Summary In a survey of the metazoan ecto‐ and endoparasites of Siganus sutor (Cuvier & Valenciennes, 1835), a commercially important herbivorous fish from the Kenyan coast, sixteen species of parasites are found. The gill parasites include Monogenea ( Tetrancistrum sigani Goto & Kikuchi, 1917; Microcotyle mouwoi Ishii & Sawada, 1938; Pseudohaliotrema sp. 1 and sp. 2, and an unidentified Microcotylidae species); Copepoda ( Caligus sp. and Hatschekia sp.); and Isopoda (one Gnathiidae species). The intestinal parasites found are Digenea ( Opisthogonoporoides cf. hanumanthai Madhavi, 1912; Gyliauchen papillatus Goto & Matsudaira, 1918; Hexangium sigani Goto & Ozaki, 1929; and three other unidentified digeneans); Acanthocephala ( Sclerocollum rubrimaris Schmidt & Paperna, 1978); and Nematoda ( Procamallanus sigani Yamaguti, 1935). The species listed are first records for the Kenyan coast. Infection prevalence, mean intensity and site specificity are determined for the different parasite species. The parasites have an aggregated frequency distribution in the host population: some individuals of the siganid population are more heavily infected than expected in a random distribution, while others are very little or not at all infected. Résumé On a découvert seize espèces de parasites lors d'une étude des métazoaires ecto‐et endoparasites de Siganus sutor (Cuvier & Valenciennes, 1985), un Poisson herbivore commercialement important de la côte kéyane. Les parasites des branchies comprennent des Monogeneae ( Tetrancistrum sigani Goto & Kikuchi, 1917; Microcotyle mouwoi Ishii & Sawada, 1938; Pseudohaliotrema sp.1 & sp.2, et une espèce non identifiée de Microcotylideae); des Copépodes ( Caligus sp. et Hatschekia sp.) et un Icopode (une espèce de Gnathiideae). Les parasites intestinaux trouvés appartenaient aux Digeneae ( Opisthogonoporoides cf. hanumanthai Madhavi, 1972; Gyliauchen papillatus Goto & Matsudaira, 1918; Hexangium sigani Goto & Ozaki, 1929; et trois autres Digenaeae non identifiés); aux Acanthocephaleae ( Sclerocollum rubrimaris Schmidt & Paperna, 1978), et aux Nématodes ( Procamallanus sigani Yamaguti 1935). Ces espèces sont rapportées pour la première fois sur la côte kényane. Le degré, l'intensité