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The image depicts the life cycle of a salmon with illustrations and labels from upper river (slow moving) to open sea, each stage has an approximate timeline – upper river stage lasts approx. 3-6 months with reeds, small stones, and salmon eggs elements; lower river (fast flowing) stage lasts approx. 4 years, and open sea stage lasts approx. 5 years. The salmon's growth is represented at three stages: 'fry' measuring 3-5cm, 'smolt' measuring 12-15cm, and 'adult salmon' measuring 70-76cm. Each stage is represented by a number from 1 to 3 correlating to a pictorial symbol of the salmon's growth.
Given the complexity of the image, the above description may not be entirely accurate.
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The provided process diagram illustrates the life cycle of a species of large fish commonly known as salmon. Overall, the diagram reveals three main stages in the life cycle: the fertilization of eggs, the development into fry and smolt, and finally, growth into adult salmon.
In the first stage of the salmon life cycle, the eggs take approximately 5 to 6 months to hatch into fry. This process occurs among small stones and reeds in areas of the upper river where the water flows slowly. Next, the fry spends about 4 years growing into smolt, a stage that takes place in the lower river where the water flows rapidly.
After the smolt stage, the fish spend approximately 5 years in the open sea before finally maturing into adult salmon. This life cycle then begins anew. In terms of size, the fry measures about 3-8 cm, the smolt reaches around 12-15 cm, and the adult salmon grows to a length of 70-76 cm.
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