File:Moon jellyfish with a small lion's mane jellyfish feeding on it 1.jpg
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Captions
Captions
Lion's mane jellyfish feeding on a moon jellyfish in Sandvik, Lysekil Municipality
Summary
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| Description |
English: A small lion's mane jellyfish (Cyanea capillata) feeding on a moon jellyfish (Aurelia aurita) in Sandvik, Lysekil Municipality, Sweden. The lion's manes seem to favor attaching themselves to the underside of the moon jellies when they feed on them.The jellies are disturbing the top water layer of the fjord. The photo was taken on a calm, sunny morning after a rain, so it's likely that the layer is warmer water with some freshwater added. In this case that would make a thermocline coincide with a halocline and resulting in a very thin but visible pycnocline. This difference in density and the altered refractive index is what makes the water look "oily". The jellies are quite small and young, about 5–6 cm (2.0–2.4 in) in diameter, and since they are just below the surface and stirring up the pycnocline beneath them, that would make the layer of warmer freshwater on the fjord about 6–8 cm (2.4–3.1 in) thick at the time. The gray dots in the photo are daphnias, the fjord was full of them at the time. |
| Date | |
| Source | Own work |
| Author | W.carter |
| Camera location |  | View this and other nearby images on: OpenStreetMap |  |
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This is a retouched picture, which means that it has been digitally altered from its original version. Modifications: Some debris in the water, mostly plant parts, and surface bubbles have been removed.
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I, the copyright holder of this work, hereby publish it under the following license:
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 19:39, 23 July 2020 | | 4,925 × 3,155 (8.76 MB) | W.carter (talk | contribs) | Uploaded own work with UploadWizard |
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