Long-spine porcupinefish

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Longspined porcupinefish
Diodon holocanthus 060417w.jpg
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Tetraodontiformes
Family: Diodontidae
Genus: Diodon
Species: D. holocanthus
Binomial name
Diodon holocanthus
Linnaeus, 1758
Long-spine porcupinefish.png
Distribution of the Long-Spine Porcupinefish

Diodon holocanthus, known commonly as the longspined porcupinefish or freckled porcupinefish among other vernacular names, is a species of marine fish in the family Diodontidae.[1]

Diet[edit]

The species' diet includes sea urchins and hard-shelled mollusks.[2]

Distribution[edit]

The Longspined porcupinefish has a circumtropical in distribution, being found in the tropical zones of major seas and oceans:

Description[edit]

Pale in colour with large black blotches and smaller black spots, these spots becoming fewer in number with age. Has many long, two-rooted depressible spines particularly on its head. The teeth of the two jaws are fused into a parrot-like "beak". Adults may reach 50 cm (20 in) in length.[4] The only other fish with which it might be confused is the black-blotched porcupinefish, (Diodon liturosus) but it has much longer spines than that species.[5]

Diet[edit]

Feeds on mollusks (molluscs), sea urchins, hermit crabs, snails, and crabs during its active phase at night.[6] They use the beak combined with plates on the roof of the mouth to crush their prey such as molluscs and sea urchins that would otherwise be indigestible.[7]

Habitat[edit]

Found over the muddy sea bottom, in estuaries, in lagoons or on coral and rocky reefs around the world in tropical and subtropical seas.[8]

Spawning[edit]

Spawns at the surface at dawn or at dusk in pairs or in groups of males with a single female; the juveniles remain pelagic until they are at least 7 cm (3 in) long.[4] Young and sub-adult fish sometimes occur in groups.

Uses[edit]

It is used in Chinese medicine, and is captured at the surface with a hand net. It is poisonous if not prepared correctly.

References[edit]

  1. ^ http://www.fishbase.org/comnames/CommonNamesList.php?ID=4659&GenusName=Diodon&SpeciesName=holocanthus&StockCode=5717
  2. ^ Tristan Lougher (2006). What Fish?: A Buyer's Guide to Marine Fish. Interpet Publishing. ISBN 978-1-84286-118-9. 
  3. ^ Froese, Rainer and Pauly, Daniel, eds. (2007). "diodon holocanthus" in FishBase. 6 2007 version.
  4. ^ a b Lieske, E. and Myers, R.F. (2004) Coral reef guide; Red Sea London, HarperCollins ISBN 0-00-715986-2
  5. ^ "Black-blotched porcupinefish: Diodon liturosus Shaw, 1804". Australian Museum. Retrieved 2013-12-15. 
  6. ^ Leis, J.M., 2001. Diodontidae. Porcupine fishes (burrfishes). p. 3958-3965. In K.E. Carpenter and V. Niem (eds.) FAO species identification guide for fishery purposes. The living marine resources of the Western Central Pacific. Vol. 6. Bony fishes part 4 (Labridae to Latimeriidae), estuarine crocodiles. FAO, Rome.
  7. ^ "Porcupinefishes". Australian museum. Retrieved 2013-12-15. 
  8. ^ Kuiter, R.H. and T. Tonozuka, 2001. Pictorial guide to Indonesian reef fishes. Part 3. Jawfishes - Sunfishes, Opistognathidae - Molidae. Zoonetics, Australia. p. 623-893.

External links[edit]

Media related to Diodon holocanthus at Wikimedia Commons