Overview

Distribution

in all oceans
  • UNESCO-IOC Register of Marine Organisms
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Source: World Register of Marine Species

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Ecology

Habitat

bathypelagic
  • UNESCO-IOC Register of Marine Organisms
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© WoRMS for SMEBD

Source: World Register of Marine Species

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Physiology and Cell Biology

Physiology

Bioluminescence

This chaetognath has a luminescent organ on the ventral edge of each anterior lateral fin. Each luminescent organ contains about 8,000 bioluminescent particles. The particles are packed in hexagonal chambers and covered by a thin layer of tissue. The chaetognath can shed these particles into the water to form a luminescent cloud.

  • Thuesen, E. V., F. E. Goetz, and S. H. D. Haddock. 2010. Bioluminescent organs of two deep-sea arrow worms, Eukrohnia fowleri and Caecosagitta macrocephala, with further observations on bioluminescence in chaetognaths. Biological Bulletin, 219:100-111.
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Supplier: Erik Thuesen

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