28 Jun The Dancers of Light: Unveiling the Mystery of How Dive Flashlights Ignite the World of Deep-Sea Creatures
Beneath the enigmatic abyss, the world of deep-sea creatures has always been shrouded in mystery. The use of dive flashlights provides us with a window to unveil this world. But did you know? The beam of a flashlight for some marine creatures is not just symbolic of light, but also a strong attraction. So, what marine creatures are drawn to this ‘luminous charm’?
Plankton’s Dance in the Light Beam
Deep underwater, beams from dive flashlights can attract a large number of plankton. According to an article published in Marine Biology in 2018, plankton, such as small jellyfish and diatoms, dance freely in the ever-changing halo, creating a magical and moving scene.
Silver Flash, the World of Small Fish Under the Light
Larger creatures, such as small and medium-sized fishes, especially nocturnal marine creatures, are also attracted by the flashlight beam. Silver fish, a common marine creature, are attracted by the light during night dives, emitting a silver flash that adds a glimmer of brightness to the deep sea. This has been confirmed by a study published in Fisheries Oceanography.
The Light Trail of ‘Predator’ Squids
Those seemingly indifferent squids and octopuses are actually attracted by light sources too. According to a thesis from the Ocean University of China in 2012, these ‘predators’ seeking prey, utilize the light to illuminate the hunting path, gleaming intensely.
Nocturnal Symphony, Lobster and Crab’s Evening Dance
Simultaneously, nocturnal or darkness-active creatures, like lobsters and crabs, are also drawn to the flashlights. According to a study by the Cornwall Wildlife Trust, the brightness of the light resembles the moonlight of the night, guiding them out of the deep sea, initiating their evening feast.
At this moment, the undersea world illuminated by the light is vibrant and full of energy. However, while light attracts these creatures, we must note that excessive light can harm their eyes and disrupt their living habits. Thus, divers are advised to select the appropriate brightness when using underwater flashlights and avoid shining it for a long duration in the same marine area or on the same creature. Explore the unknown, respect life, let us use flashlights moderately and cherish every life on this blue planet. In this way, while we enjoy the pleasure of observing marine creatures, we also minimize the disturbance to their lives. As we explore the deep sea, we also maintain their habitat, sharing this beautiful world harmoniously.
No Comments