AC/DC'S_LVR
All That Noiz
Blobfish
The blobfish (Fathead, Psychrolutes marcidus) is a fish that inhabits the deep waters off the coasts of Australia and Tasmania. Due to the inaccessibility of its habitat, it is rarely seen by humans.
Blobfish are found at depths where the pressure is several dozens of times higher than at sea level, which would likely make gas bladders inefficient. To remain buoyant, the flesh of the blobfish is primarily a gelatinous mass with a density slightly less than water; this allows the fish to float above the sea floor without expending energy on swimming. The relative lack of muscle is not a disadvantage as it primarily swallows edible matter that floats by in front of it.
Blobfish don’t need muscles – they have a feeding strategy that consists of sitting and waiting for something edible to go by. As well as that, their jelly-like flesh is slightly lighter than water, so they don’t need to expend energy or scarce oxygen to stop themselves from sinking towards the sea floor. This low-density flesh is an alternative to a gas-filled swim bladder, a feature of many fish in less deep waters. However, at 800 metres deep the pressure is about 80 times higher than at sea level, so any gas would be too compressed to serve the purpose. Also in this photograph is a small red snailfish, another deep-water species with a jelly-like layer.