Salmon

Scale up the scale
By Yuan Xue	Materials Science Program

title


HOME	SALMON	STRIPED BASS	RED SNAPPER	SEA BASS

Salmon Light Microscopy SEM AFM	Light Microscopy

	Fig. 1 Light microscopy image of the salmon scale
	SEM

	Fig.2 SEM picture of the salmon scale with natural colorization

	Fig.3 First domain of the salmon scale (striped pattern) Fig.4 Second domain of the salmon scale (smooth surface)
	Fig.1-4 show the morphology of the salmon scale. The salmon scale has a smooth edge without any "tooth-shaped" ends. This is distinct from the other three samples in this project. The salmon scale has two domains in the micrograph: one is relatively smooth without any texture which takes about one third area of the sample; the other one is characterized with the oval types focus and texture. In fig.4, the tiny blue strip represents the protein found on the sample surface. And the green spots are impurities.
	AFM

	Fig.5 AFM results of the salmon scale sample, (left, 2D view; right, 3D view).
	Fig.5 is observed the height profile of a certain area on the salmon scale, obtained with AFM. From the figures, a ridge with a height about 3.0 μm is observed, which is also seen in the SEM image (see Fig.3). According to the right 3D view, more pattern details are observed on the salmon scale.