Teleostei (teleosts) >
Tetraodontiformes (Puffers and filefishes) >
Diodontidae (Porcupinefishes (burrfishes))
Etymology: Cyclichthys: Greek, kyklos = round + Greek, ichthys = fish (Ref. 45335).
Eponymy: Dr Johann Dietrich Fran(s/z) Hardenberg (d: 1902) was a Dutch marine biologist, botanist, ichthyologist and entomologist who was awarded his doctorate by the University of Utrecht (1927). [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; demersal; depth range ? - 100 m (Ref. 9680). Tropical
Western Pacific: southern New Guinea and tropical Australia east of Cape York (Ref. 9680).
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 25.0 cm SL male/unsexed; (Ref. 9680)
few black spots on body, those present at base of spines dorsally and dorsolaterally. Dorsal, anal, and caudal fins with dusky distal margin. Only 2 spines over eye. 2 spines between nostrils, 1 immediately adjacent to each nostril (Ref 9680).
Found over soft bottoms to depths of 100 m, usually trawled. Presumably solitary and feeds on hard-shelled invertebrates. Not usually marketed.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
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. (Ref. 9680)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Venomous
Human uses
Fisheries: of no interest
Tools
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Internet sources
Estimates based on models
Preferred temperature (Ref.
123201): 26.9 - 28.9, mean 28 °C (based on 338 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.04677 (0.01905 - 0.11483), b=2.82 (2.61 - 3.03), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.5 ±0.37 se; based on food items.
Resilience (Ref.
120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (21 of 100).
![Image of Cyclichthys hardenbergi (Hardenburg\](/images/thumbnails/jpg/tn_Cyhar_u1.jpg "Image of Cyclichthys hardenbergi (Hardenburg\")
