Trichonotus_setiger

Spotted sand-diver

Spotted sand-diver

Species of fish

The spotted sand-diver (Trichonotus setiger) is a perciform fish in the family Trichonotidae. T. setiger is the type species of genus Trichonotus.[2]

Quick Facts Conservation status, Scientific classification ...

Description

Spotted sand-divers reach a maximum length of 22 cm (8.7 in). They have 39 to 41 soft dorsal spines. Males can be distinguished from females by their long dorsal fin rays and larger size.[3]

Distribution

T. setiger can be found from the Persian Gulf to Queensland and Melanesia[4]

Habits

Spotted sand-divers occur in large groups where there are steep sand slopes. They hover above clean sandy substrates and dive into the sand when disturbed. The habitat usually contains some silt. They are normally observed resting on sea bed, leaving substrate to catch zooplankton, or to display.[3] Some species in the genus Trichonotus are protogynous hermaphrodites.[5]

References

  1. [1]
    Carpenter, K.E. & Smith-Vaniz, W.F. (2017) [errata version of 2016 assessment]. "Trichonotus setiger". IUCN Red List of Threatened Species. 2016: e.T69739648A115473191. doi:10.2305/IUCN.UK.2016-3.RLTS.T69739648A69742689.en.
  2. [2]
    Froese, Rainer, and Daniel Pauly, eds. (2014). "Trichonotidae" in FishBase. November 2014 version.
  3. [3]
    Froese, Rainer; Pauly, Daniel (eds.) (2018). "Trichonotus setiger" in FishBase. February 2018 version.
  4. [4]
    Randall, J.E., Allen, G.R. & Roger C.S. (eds.) Fishes of the Great Barrier Reef and Coral Sea. Honolulu, HI: University of Hawaii Press, 1996. 358.
  5. [5]
    Kusen, J.D.; Nakagawa, K.; Yogo, Y. & Nakazono, A. (1991). "Protogynous hermaphroditism in the sand diver Trichonotus filamentosus". Nippon Suisan Gakkaishi. 57 (1): 35–40. doi:10.2331/suisan.57.35.


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