What would happened if fish had no scales?

Scales provide physical protection for fish, acting as a barrier against external factors like sharp objects, predators, and parasites. Without scales, fish would be more vulnerable to injury, infection, and predation.

Compromised Structure and Support

The scales of a fish make up part of its structural support system. They help maintain the fish's shape and streamlined form, allowing for efficient swimming and maneuverability. Without scales, the fish's body could be more susceptible to deformations, affecting its swimming ability and overall health.

Compromised Osmotic Balance

Scales help maintain osmotic balance in fish by preventing excessive water absorption through the skin. Without scales, the fish could become waterlogged, leading to electrolyte imbalances and other health problems.

Increased Stress and Poor Health

The lack of scales would undoubtedly cause increased stress for fish, which can lead to several negative effects on their health and well-being. Stress can impair their immune system, reduce growth, affect reproduction, and increase susceptibility to diseases.

Increased Vulnerability to Environmental Factors

Without scales, fish would have reduced protection from changes in temperature, pH, and salinity. These environmental factors could adversely affect their physiology, metabolism, and overall health.