Micrognathus dunckeri Chabanaud, 1929
The Duncker's pipefish is a small sized fish that can reach a maximum length of 15 cm. It has a thin and elongate body with reduced fins which are difficult to observe. The body color is highly variable from one individual to another ranging from creamy white to dark brown through redish to yellowish. The dorsal part of the body is full of small whitish skin growths as well as irregular pale bars. Its head is rather small with large eyes, the snout is short with a characteristic whitish part at its tip.
The ridgenose pipefish is widespread throughout the tropical and subtropical waters of the Indo-West Pacific from the eastern coast of Africa, Red Sea included, until Salomon Islands and from South Japan to the Great Barrier Reef.
The ridgenose pipefish is found close to the bottom between the surface and 25 meters deep.
It prefers areas such as reef, sandy bottom or coral rubble with algae or debris in which it can easily hide.
Its reproduction occurs during a courtship where the female will transfer her eggs in the ventral surface of the male between skin folds forming a kind of protective pouch in which he will fertilize them and protect them during the incubation period.
- Kuo, T. & Pollom, R. (2016). "Halicampus dunckeri". The IUCN Red List of Threatened Species. 2016: e.T65367574A67624507. doi:10.2305/IUCN.UK.2016-1.RLTS.T65367574A67624507.en.
- Froese, Rainer and Pauly, Daniel, eds. (2018). "Halicampus dunckeri" in FishBase. February 2018 version.
- Dawson, C.E., 1986. Syngnathidae. p. 445-458. In M.M. Smith and P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlin.
- Kuiter, R.H. and T. Tonozuka, 2001. Pictorial guide to Indonesian reef fishes. Part 1. Eels- Snappers, Muraenidae - Lutjanidae. Zoonetics, Australia. 1-302.
- Allen, G.R. and M.V. Erdmann, 2012. Reef fishes of the East Indies. Perth, Australia: University of Hawai'i Press, Volumes I-III. Tropical Reef Research.
- Breder, C.M. and D.E. Rosen, 1966. Modes of reproduction in fishes. T.F.H. Publications, Neptune City, New Jersey. 941 p.
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