Glochidia is the larval stage of freshwater bivalve molluscs that may attachto fish. The margins of their shells have sharp teeth (Fig. 5-17).
The shell valves are attached to gills and outer surfaces of fish.
EFFECTS ON HOST:
The gill tissue is destroyed. The respiratory function of the gills during se-vere infestations is disrupted. Secondary bacterial and fungal infections result when the parasite leaves the host.
Gross macroscopic and microscopic examination of the host fish.
PREVENTION AND CONTROL:
• Adequate filtration of intake water to prevent entry of larval glochidium