Female anglerfish (Linophryne sp.)

Female anglerfish (Linophryne sp.)

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Caption: This is a female anglerfish with attached parasitic male, from the family Linophrynidae and the genus Linophryne, known as the Netdevils or Bearded Seadevils. Linophryne is a special group of fish because they demonstrate two distinctive modes of bioluminescence, intrinsic bioluminescence and bacterial bioluminescence. The evolution of both modes in a single species is extremely rare. The esca or lure is filled with bacteria that produce light and live in a symbiosis with the fish. The chin barbel or beard glows in the dark via the production of luciferin and luciferase by the fish - an intrinsic method of light production by the fish itself. This specimen was trawled up in the Gulf of Mexico, 2016, from between 1,200 and 1,500 meters depth. Image courtesy of the DEEPEND project.

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Keywords: angler fish, anglerfish, animal, attached male, bacterial bioluminescence, bathydemersal, bathypelagic, bearded seadevils, bioluminescence, bioluminescent, bizarre, cool, deep ocean, deep sea, deepsea, esca, fauna, fish, gulf of mexico, illicium, intrinsic bioluminescence, larvae, larval female, linophryne, linophrynidae, lure, male female, mesopelagic, modified fin ray, nekton, netdevils, parasitic male, pelagos, scary, strange, toothy, wildlife

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