Diodon hystrix Linnaeus, 1758
Spot-fin porcupinefish
photo by Winterbottom, R.

Family:  Diodontidae (Porcupinefishes (burrfishes))
Max. size:  91 cm TL (male/unsexed); max.weight: 2,800.0 g
Environment:  reef-associated; depth range 2 - 50 m
Distribution:  Circumtropical. Eastern Pacific: San Diego, California, USA to Chile, including the Galapagos Islands (Ref. 37955). Western Atlantic: Bermuda, Massachusetts (USA), and northern Gulf of Mexico to Brazil (Ref. 7251). Eastern Atlantic: 30°N to 23°S (Ref. 6951). Western Indian Ocean: Red Sea to Madagascar, Reunion and Mauritius (Ref. 33390). The reports in the Mediterranean Sea are doubtful (Ref. 50345).
Diagnosis:  Dorsal spines (total): 0-0; Dorsal soft rays (total): 14-17; Anal spines: 0-0; Anal soft rays: 14-16. Body robust; teeth united in each jaw but without a central division; body covered with long, sharp spines, folded backwards when body not inflated; 16 to 20 spines between snout and dorsal fin; dorsal region of caudal peduncle spiny; back, flanks and fins light brown with numerous dark spots; belly spiny (Ref. 55763). Spines long. Body grayish tan, with small black spots, but no large dark blotches. Belly white, surrounded by dusky ring (Ref. 26938). About 20 spines in an approximate row between snout and dorsal fin (Ref. 13442).
Biology:  Occur in lagoon and seaward reefs to at least 50 m. Commonly seen in caves and holes in shallow reefs (Ref. 26938, 48637). Juveniles to about 20 cm are pelagic. Adults benthic (Ref. 30573). Solitary and nocturnal that feed on hard shelled invertebrates like sea urchins, gastropods, and hermit crabs (Ref. 9680). Generally common (Ref. 9710). Not normally used as food (Ref. 3717). Reached a life-span of 10 years and a length of 69 cm in the McGinty Aquarium (E. Dashiell, pers. comm 2004), suggesting a preliminary K=0.12.
IUCN Red List Status: Least Concern (LC); Date assessed: 07 June 2011 Ref. (120744)
Threat to humans:  poisonous to eat
Country info:   
 

Entered by: Luna, Susan M. - 17.10.90
Modified by: Ortañez, Auda Kareen - 09.01.08
Checked by: Casal, Christine Marie V. - 23.02.96

Source and more info: www.fishbase.org. For personal, classroom, and other internal use only. Not for publication.


Page created by Jen, 05.08.02, php script by kbanasihan 06/09/2010 ,  last modified by sortiz, 10/02/17