Pour the gelatin and water into a bowl and leave it for 5 minutes for the gelatin to bloom, which make the jelly smooth and firm. Bioflourescent jellyfish: Getty Images UK. Close-up of purple jellyfish: Bruce H. Obison. Jellyfish with long tentacles: Natursports, Dreamstime. Yellow jellyfish: Tim Hester, Dreamstime. Map showing jellyfish distribution: National Geographic Maps. One characteristic of many zooplankton is a pattern of movement called diurnal vertical migration. Many species, though weak swimmers, migrate hundreds of meters deep during the day to avoid predators and return toward the surface to feed on phytoplankton and microzooplankton at night. As a result, many other parts of the food chain also follow this daily migration pattern.

If you want to, you can frost the bottom part of the cake all the way up to the edge of the base of the pan so it looks like sand at the bottom of the sea, but you’ll still need to carve the cake smaller than the pan now, so there’s room for that frosting.No! Jellyfish don’t have brains. They have a basic nervous system that helps them to detect things like touch, temperature and smell and detect light. In the photos below I used 3 colors of gelatin crumbles, but the lightest shade of blue completely blended in with the ocean jelly that’s poured on top of the gelatin crumbles! You’ll need a silicone mold for this and some white chocolate chips. Microwave the chocolate at 50% power in the microwave for a minute to melt it without burning it and stir it until it’s smooth. You can microwave it again it there are still lumps in the chocolate.

Speaking of what jellyfish do have, their tentacles can grow super long. The lion mane jellyfish’s tentacles can grow up to 27 metres long, the same size as a blue whale! Use another colour to tint the little bowl of gelatin. Choose something that will show through the blue jelly so pink is a great option, or you can do a few bowls of different colours. Then press the section that you carved off the cake onto the fresh buttercream and push gently to secure it. You can carve it to make a smooth join onto the existing cake but you don’t have to because you’ll be covering it with frosting, so you can use that to fill in any gaps. Jellyfish play an essential role in the ocean’s food chain. They consume a variety of smaller organisms, including microscopic plankton, various crustaceans, and even other jellyfish. Use a paintbrush to brush the coloured chocolate into the fish mold, using more than one colour within the same fish to make it look a bit more interesting and realistic. I’m using the purple chocolate that seized and since the fish is going to be within jelly on the cake, if there’s any texture or graininess in the chocolate you won’t be able to see it.Pour in 1 cup of egg whites and mix on low until just incorporated. Mix in 1 1/2 cups buttermilk in two installments on a low speed. Make sure the cake is in the middle of the pan, with at least 1/2 a cm of a 1/4 of an inch all the way around if you want the entire sides of the cake to be jelly. I’ll show you the alternative next. Jellyfish lurk in the waters of every ocean in the world, so one could expect them to have a varied diet.