| Summary: | 碩士 === 國立臺灣大學 === 獸醫學系研究所 === 85 === Abstract
This study is to realize the parasite fauna and the relationship
s between parasite fauna and ecologic factors of commercial marine fish and Ce
tacean in Taiwan. Totally of 371 commercial marine fish of 67 species were pur
chased from fish markets in Keelung and 34 parasite- infested Cetaceans were c
ollected from Taiwan coastline between June 1996 to April 1997. Parasites were
collected at necropsy, and identified according to the characteristics of the
morphology. Results of survey revealed 67 species of shes were infested. Gene
ral infection rate was 44.2% . The individual incidence of helminths is : Nema
tode 34.8%, Anisakis 20.8%, Trematode 4.3%, Acanthocephala 6.2% and Cestode 6.
5%. A total of 18 helminth species were found in commercial marine fish. Paras
ite species identified were : Anisakis type1, Anisakis type 2, Anisakis type 3
, Terranova type1, Terranova type2, Procamalanus sp., Calmalanidae, Anisakidae
, Thynnascaris sp., Thynnascaris-like, Raphidascaris sp. Metabonema sp., Alloc
readiidae, Brachyphaus sp., Hemiuridae, Bolbosoma sp., Serrasentis sp., Rhadin
ohynchidae, Neochinohynchus sp. ,Trypanorhyncha. The analyzed data indicated t
hat significant association was found between fish diet and parasite fauna. Th
ere was no significant association between distribution types and parasite fau
na except trematode infection. Additionally, paraites found in stranded Cetace
ans including Anisakis sp.(in stomach), Crassicauda sp., Nasitrema sp.(in air
sinus), Halocercus sp ( in bronchi), Campulidae(in bile duct), lbosoma sp.(in
intestine), Phyllobothrium sp.(in bubbler). Since seven species of parasites
in this study are zoonotic, the potential risk caused by marine parasites shou
ld not be ingnored.
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