[New data on some parasitic invasions in fish]

Area of Science:

• Ichthyoparasitology
• Fish Pathology
• Aquatic Animal Health

Context:

• Literature review of 1980s research
• Focus on economically significant fish species
• Covers both freshwater and marine environments

Purpose:

• Synthesize new findings on fish diseases
• Clarify etiological factors and life cycles of parasites
• Update the systematics of parasitic organisms

Summary:

• Etiology of swim bladder inflammation (SBI) in carp
• Developmental stages of Myxosporea parasites
• Overgrowth of parasitic kidney disease (PKD) in salmonid fishes
• Life cycles of Myxobolus cerebralis and Ichthyophtirius multifiliis
• Revised systematics of the Diplozoidae

Impact:

• Provides a historical overview of fish disease research
• Highlights key parasitic threats to aquaculture and wild fisheries
• Forms a basis for future research and disease management strategies