Salmon scales, SEM
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Salmon scales, SEM
Salmon scales. Coloured scanning electron micrograph (SEM) of salmon (Salmo salar) scales. Fish scales are are classified by shape. Salmon scales are known as cycloid (curve edged). As the fish grows, the scale increase in size and growth rings called circuli become visible. During cooler months of the year the scale grows more slowly and the circuli are closer together leaving a band called an annulus. By counting the annuli it is possible to estimate the age of the fish. Magnification: x13 when printed 10 centimetres wide
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 9195179
© POWER AND SYRED/SCIENCE PHOTO LIBRARY
Annular Circuli Concentric Growth Rings Ichthyology Overlap Overlapping Ringed Rings Salmon Scale Scales Annulus Fish Scales Salmo Salar
EDITORS COMMENTS
This print showcases the intricate beauty of salmon scales under a scanning electron microscope. The coloured scanning electron micrograph (SEM) reveals the unique characteristics of these fish scales, which are classified as cycloid due to their curved edges. As the salmon grows, its scales increase in size and show growth rings known as circuli. These circuli become visible, forming concentric patterns on the scale's surface. During colder months, when growth is slower, the circuli are closer together and create a distinct band called an annulus. By carefully counting these annuli, scientists can estimate the age of the fish. This fascinating technique allows for a deeper understanding of salmon biology and contributes to wildlife conservation efforts. The magnification level used for this print is x13 when printed at 10 centimetres wide, providing viewers with an up-close look at every detail. From overlapping scales to ringed patterns and intricate structures within each scale, this image highlights nature's remarkable design in one of its most iconic aquatic creatures. This photograph from Science Photo Library serves as a testament to both the scientific marvels found in our natural world and the artistic beauty that can be captured through advanced imaging techniques like SEM microscopy.
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