Why do some fish have white flesh and others do not?

Introduction: Understanding the variation in fish flesh color

Fish come in a variety of colors, and their flesh is no exception. Some fish have white flesh, while others have a pink, red, or even blue hue. The variation in fish flesh color is due to several factors, including genetics, diet, and environmental conditions. Understanding the reasons behind this variation can help us appreciate the diversity of fish and make informed choices when it comes to consumption.

The role of pigments in determining fish flesh color

Pigments are responsible for the coloration of fish flesh. Different types of pigments absorb and reflect different wavelengths of light, which produces the color we see. In fish, two types of pigments are primarily responsible for flesh color: carotenoids and myoglobin.

Carotenoids are organic pigments found in plants and animals. They are responsible for the bright colors of fruits and vegetables, as well as the pink and red hues of some fish flesh. Myoglobin, on the other hand, is a protein pigment found in muscle tissue that gives some fish flesh a darker color.

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