Dennis Rabeling, Lanzarote, Kanarischen Inseln
Info
The Ruhr University Bochum aptly calls the luminescent fish “the fireflies among the fish”!
Diaphus dumerilii is nocturnal and extremely shy of light, the luminescent sardine lives oceanically, mesopelagic and migrates during the day from a depth of up to 800 meters to the surface at night to feed up to 125 meters.
This species has a maximum life expectancy of two years.
In the waters around the Canary Islands, Diaphus dumerilii is most common at relatively shallow depths, indicating a certain land association, and can be considered pseudoceanic.
Lanternfish are an important food source for squid, other deep-sea fish, large pelagic fish such as tuna and sharks, seabirds, penguins, whales and dolphins!
All species, with the exception of Taaningichthys paurolychnus, have blue, green or yellow light-emitting organs in rows along the body and on the head. In the genus Diaphus, for example, there are spotlight-like luminous organs near the eyes.
The glow, a bioluminescence, is made possible by bacteria that live as symbionts in the luminous organs and can occur up to 90 times per minute.
By rotating the luminescent organs, Diaphus dumerilii produces flashing patterns with different frequencies.
Luminous fish can show flashing signals by rotating their luminous organs and also a continuous glow, this continuous glow is switched on on contact with zooplankton, see the report below “ Behavioral Biology - The Fireflies among the Fish”
Luminous fish may not be kept in aquaria in Europe!
Synonyms:
Collettia nocturna (Poey, 1861) · unaccepted
Diaphus dumerili (Bleeker, 1856) · unaccepted (misspelling)
Diaphus dumerili nocturnus (Poey, 1861) · unaccepted
Diaphus nocturnus (Poey, 1861) · unaccepted
Lampanyctus lacerta Goode & Bean, 1896 · unaccepted
Myctophum dumerili (Bleeker, 1856) · unaccepted (misspelling)
Myctophum lacerta (Goode & Bean, 1896) · unaccepted
Myctophum nocturnum Poey, 1861 · unaccepted
Scopelus dumerilii Bleeker, 1856 · unaccepted
Scopelus schmitzi Johnson, 1890 · unaccepted
Diaphus dumerilii is nocturnal and extremely shy of light, the luminescent sardine lives oceanically, mesopelagic and migrates during the day from a depth of up to 800 meters to the surface at night to feed up to 125 meters.
This species has a maximum life expectancy of two years.
In the waters around the Canary Islands, Diaphus dumerilii is most common at relatively shallow depths, indicating a certain land association, and can be considered pseudoceanic.
Lanternfish are an important food source for squid, other deep-sea fish, large pelagic fish such as tuna and sharks, seabirds, penguins, whales and dolphins!
All species, with the exception of Taaningichthys paurolychnus, have blue, green or yellow light-emitting organs in rows along the body and on the head. In the genus Diaphus, for example, there are spotlight-like luminous organs near the eyes.
The glow, a bioluminescence, is made possible by bacteria that live as symbionts in the luminous organs and can occur up to 90 times per minute.
By rotating the luminescent organs, Diaphus dumerilii produces flashing patterns with different frequencies.
Luminous fish can show flashing signals by rotating their luminous organs and also a continuous glow, this continuous glow is switched on on contact with zooplankton, see the report below “ Behavioral Biology - The Fireflies among the Fish”
Luminous fish may not be kept in aquaria in Europe!
Synonyms:
Collettia nocturna (Poey, 1861) · unaccepted
Diaphus dumerili (Bleeker, 1856) · unaccepted (misspelling)
Diaphus dumerili nocturnus (Poey, 1861) · unaccepted
Diaphus nocturnus (Poey, 1861) · unaccepted
Lampanyctus lacerta Goode & Bean, 1896 · unaccepted
Myctophum dumerili (Bleeker, 1856) · unaccepted (misspelling)
Myctophum lacerta (Goode & Bean, 1896) · unaccepted
Myctophum nocturnum Poey, 1861 · unaccepted
Scopelus dumerilii Bleeker, 1856 · unaccepted
Scopelus schmitzi Johnson, 1890 · unaccepted
