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The image contains a visual representation of the life cycle of a salmon; it includes five diagrams accompanied by labels and measurements. The cycle appears to start with "salmon eggs" laid among "small stones" in the "upper river (slow-moving)" with depictions of aquatic plants labeled as "reeds." The eggs develop into "fry" sized 3-6cm, then growing into "smolt" featured at 7-15cm, both stages seemingly taking place in "lower river (fast-flowing)" for "approx. 4 years." The smolt transition into "adult salmon" labeled at 70-76cm, residing in the "open sea" for "approx. 3 years" before returning to the upper river, completing the cycle.
Given the complexity of the image, the above description may not be entirely accurate.
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Overall, there are three main stages in the diagram, starting with salmon eggs, and ending with full-grown salmon. Additionally, it can be seen that each stage takes place in a different aquatic place.
Firstly, salmon begin life as eggs in the slow moving upper reaches of the river, surrounded by reeds and small stones. This shelter keeps the salmon eggs safe for around 5 to 6 months before they hatch. The new-born fish, called “fry” , are very small which are only 8 centimeters at the maximum size. The fry follow the fast flow to the lower river and stay there for nearly 4 years until they reach 12 to 15 centimeters in size.
At the subsequent stage, the ‘smolt’ migrate to the open sea. After settling down there for approximately 5 years, the fully-grown salmon, 70 to 76 centimeters in length, come back to the birthplace and lay eggs, and the productive process of the new salmon generation begins.
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