ISSN : 1225-3480
A scanning electron microscopic study on the glochidium and glochidial encystment of Anodonta arcaeformis on the host fish Carassius auratus was conducted. The shape of the glochidium was apparently subtriangular and its average size was 270 μm x 260 μm x 145 μm. The glochidial shell valves were of the same size, kept together by a ligament that is 50.4 μm in length and 5.5 μm in width. Each of the glochidial shell valve had a long hook studded with many spines on the superior face. A large area of at the apex of the valve surrounding the base of the hook was provided with numerous small spines which became progressively smaller toward the periphery of the area. The glochidial shell valve consisted of two layers. The mantle cells line the glochidial shell valves and some of hair cells were observed. A larval thread was 2.3 μm in diameter. In the artificial infection of the glochidia to one of the natural hosts, Carassius auratus, it took about three to four hours to encyst the glochidia with epithelial cells of the fish fins. The encystment method was the cell migration from the neighboring epithelial cells.
Araujo, R. , (1998) Description of the glochidium of Margaritifera auricularia ,
Arey, (1924) and the mechanics of attachment. Journal of Morphology,
Arey, (1932a) Certain basic principles of wound healing. Anatomical Record,
Arey, (1932b) The formation and structure of the glochidial cyst. 1. Biological Bulletin,
Arey, (1932b) The nutrition of glochidia during metamorphosis. A microscopical study of the sources and manner of utilization of the nutritive substances. Journal of Morphology,
I, (1968) On glochidia of the genera Unio and Anodonta from quaternary fresh-water sediment of Poland. Acta Palaeontologia Polonica,
Giusti, (1973) The minute shell structure of the glochidium of some species of the genera Unio . Proceedings of the Fourth European Malacological Congress. Malacologia,
Giusti, (1975) The reproductive cycle and the glochidium of Anodonta cygnea L. from Lago Trasimeno,
Heard, W.H, (1999) Glochidial larvae of freshwater mussels and their fish hosts: Early discoveries and interpretations of the association,
Jeong, (1989) An ultrastructural study on the glochidium and glochidial encystment on the host fish. Korean Journal of Malacology,
Jeong, (1993) An anatomical and ultrastructural study of the glochidium of Anodonta arcaeformis. Malacological Review,
Jupiter, S.D. , (1997) Light and scanning electron microscopy of the embryos and glochidia larvae of the Australian freshwater bivalves Hyridella depressa (Hyriidae),
Lefevre, (1910a) Reproduction and parasitism in the Unionidae. Journal of Experimental Zoology,
Lefevre, (1910b) Studies of the reproduction and artificial propagation of fresh-water mussels. Bulletin of the Bureau of Fisheries,
Lima, P, (2006) In vitro culture of glochidia from the freshwater mussel Anodonta cygnea,
Kirk, S.G. , (1997) Induced metamorphosis of freshwater mussel glochidia on nonhost fish,
Mansur, M.C, (1999) Description of glochidia of five species of freshwater mussels (Hyriidae: Unionoidea) from South Africa,
F.H, (1919) Acquired immunity to an animal parasite. Journal of Infectious Diseases,
Surber, (1912) Identification of the glochidia of freshwater mussels. Report of the U.S. Commissioner of Fisheries for 1912 and Special Paper,
Surber, (1915) Identification of the glochidia of fresh-water mussels. Report of the U.S. Commissioner of Fisheries for 1914 and Special Paper,
(1979188-190.) Life cycle competition of the freshwater clam Lasmigona compress in an experimental host,
Wood, (1974a) Development and morphology of the glochidium larvae of Anodonta cygnea . Journal of Zoology,
Wood, (1974b) Some mechanisms involved in host recognition and attachment of the glochidium larva of Anodonta cygnea . Journal of Zoology,
Young, (1911) The implantation of the glochidium on the fish. University of Missouri Bulletin Science Series 2,
