Chart |
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xlabelOrientation | vertical |
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dataDisplay | true |
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legend | false |
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xlabel | Transparency (cm) |
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typedataOrientation | linevertical |
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title | Transparency |
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dataOrientationtype | verticalline |
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yLabel | HGI |
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| Transparency(cm) | HSI |
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0 | 1 | 70 | 1 | 130 | 0.5 | 200 | 0.25 | >200 | 0 |
|
Smelt prefer to swim in water with low visibility to remain hidden from predators. The better the visibility, the deeper the smelt will swim in the water column, or it will migrate to other areas. The assumed relation between visibility of the water and occurrence of smelt is: a visibility between 0 en 70cm, smelt is present, between 70 en 200cm unknown, no smelt with a visibility of over 2m. This dose-effect relation has been developed by expert judgement of IMARES. |