Syngnathus acus Linnaeus, 1758
Greater pipefish
photo by Patzner, R.

 Family:  Syngnathidae (Pipefishes and seahorses), subfamily: Syngnathinae
 Max. size:  50 cm TL (male/unsexed)
 Environment:  demersal; depth range 0 - 110 m, non-migratory
 Distribution:  Eastern Atlantic: Norway, Faroes and British Isles to Western Sahara, Senegambia, and from Namibia to Cape of Good Hope and northward to the coast of Zululand in the western Indian Ocean (Ref. 4127). Also throughout the Mediterranean, Aegean and Black seas. Despite literature records, occurrence in the Indo-Pacific outside South African waters lacks conclusive evidence (Ref. 4281).
 Diagnosis:  Dorsal spines (total): 0-0; Dorsal soft rays (total): 33-42; Anal spines: 0-0; Anal soft rays: 3-3. Light greenish to dark brown in color with variable markings (Ref. 4281). Snout cylindrical, equal to or less than eye diameter. With 18 - 19 body rings between head and dorsal fin (Ref. 35388). The snake pipefish (Entelurus aequoreus) is distinguished by the lack of pectoral and anal fins (Ref. 88171). An elongated bump on top of head behind eye (Ref. 59043).
 Biology:  Found in coastal and estuarine waters to depths of at least 110 m (Ref. 4281); on sand, mud and rough bottoms. Common amongst algae and eel-grass (Zostera) (Refs. 4146, 6733, 88187). Feeds mainly on small crustaceans (Ref. 85544).
 IUCN Red List Status:   (Ref. 96402)
 Threat to humans:  harmless
 Country info:   
 

 Entered by: Papasissi, Christine - 24.10.90
 Modified by: Opitz, Silvia - 14.02.12
 Checked by: Agustin, Liza Q. - 01.09.94

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