CamoTrap Fish (Hypohumpetrous) By amy scarlata


The CamoTrap Fish lives in the Euphotic zone and receives a lot of sunlight mainly off the coast of Australia. This benthos species lives covered in a thin layer of sand when hunting. Moving its colorful coral-like tentacles, other fish are attracted to it and then get swallowed up by its trap fins. Like a Venus Fly Trap, the CamoTrap fish captures its pray using a reflex mechanism. Spending most of its time in coral reefs due to its camouflage skin, hunting is quite easy for this fish. A lot of colorful coral is where this fish calls home.



Male CamoTrap fish have open holes on the sides of their gills. This function is specifically for spitting out sperm near females, which have little finger-like flagellum on the sides of their gills. Eggs are laid on hard fire rock coral and this is why every egg is a reddish color. Many new born CamoTrap fish don't have their flat shape until they mature sexually. Until then, the CamoTrap fish find little phytoplankton and zooplankton to feed on as they sift through rich sand. Almost immediately after the eggs hatch, the youngsters are independent. Staying safe near the bottom of the ocean floor.


Feeds on Zebra fish
Maui Reef Fish
Palette Surgeonfish or Dory


The abiotic factors for the CamoTrap fish is sunlight, the warm water temperature and the very little pressure. The pH of the photic zone is between 8.0 – 8.3. With the ocean water slightly alkaline, this is the perfect area for CamoTrap fish. These non-living factors also make it easier for this fish to hunt for its preferred prey. Such as coral fish ,which are small and easy for the CamoTrap fish to eat with its tiny mouth, like the warm water as well.


Some biotic factors include competition, predation, and diseases. A common competitor of the CamoTrap fish is the Stonefish. The reason why these two but heads is because they are very similar in hunting and habitat. Territorial instincts play a huge role in their competitions but also their food source. The Stonefish, like the CamoTrap fish, hides in sand or coral and snatches prey that swims over head. Same in size, they both battle for a place to hide out and scope for prey.

The Stonefish (competitor)


The Moray Eel loves CamoTrap fish. With its wide opening mouth, the Moray Eel can dig in the sand and scoop up the CamoTrap fish. Since this predator is a reef living animal, it shares a habitat. Making the food chain cycle its course. Being that the Moray Eel find it so convenient to prey on CamoTrap fish, this is one of their top food sources.

Moray Eel (predator)
Moray Eel (predator)



Created with images by SEDACMaps - "Australia: Population Density, 2000" • jimg944 - "DSC26569, Monterey Bay Aquarium, California, USA" • jareed - "Salted Egg Yolks" • rumpleteaser - "Zebra Fish" • Stevebidmead - "butterflyfish fish tropical" • Moto@Club4AG - "Blue Tang and Yellow Tailed damsel" • James St. John - "Acropora palmata (elkhorn coral) (San Salvador Island, Bahamas) 2" • MonicaVolpin - "underwater scuba diving fauna" • Tim Sheerman-Chase - "CIMG0660 Two Moray Eels Thailand" • Joi - "Moray eel"

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