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Smelt - Osmerus eperlanus
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Salt water smelt may reach 30cm in length and can live for 8 years. The freshwater smelt, on the other hand, can live for 3 years and can only reach 14cm.
Response curves
| Wiki Markup |
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rankdir=LR]
"node0" [
label = "Transparency|Temperature|Oxygen"
shape = "record"
];
"node0":f1-> HGI [style=italic,label="minimum"]
[
id = 0
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{flowchart} |
Relations
| Section |
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| Column |
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| | 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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| title | Transparency |
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| dataOrientation | vertical | title |
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| Transparency | type | line |
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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 |
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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. |
| Column |
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| | Chart |
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| xlabelOrientation | vertical |
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| dataDisplay | true |
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| legend | false |
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| xlabel | Temperature |
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| title | Temperature |
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| dataOrientation | vertical | title | Temperature |
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| type | line |
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| yLabel | HGI |
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| Temperature | HSI |
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0 | 1 | 20 | 1 | 23 | 0.5 | 25 | 0 | >25 | 0 |
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There is no data available on the dose-effect relation of temperature and smelt. Two or three days with a temperature above 23°C will most likely lead to mass mortality. This dose-effect relation has been developed by expert judgement of IMARES. |
| Column |
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| | Chart |
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| dataDisplay | true |
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| legend | false |
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| xlabel | Oxygen (mg/L) |
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| title | Oxygen |
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| dataOrientation | vertical | title | Oxygen |
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| type | line |
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| yLabel | HGI |
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| Oxygen (mg/L) | HSI |
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0 | 0 | 2 | 0 | 4 | 0.25 | 6 | 0.5 | 8 | 1 | >8 | 1 |
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Also for oxygen, there is no data available on the dose-effect relation with smelt. An oxygen concentration higher than 8mg/l will most likely be preferred as this is the case for many other fish. The relation between oxygen concentration and the survival of smelt is however unknown. This dose-effect relationhas been set by expert judgement of IMARES. |
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