Common Seadragon, Weedy Seadragon  |  

Phyllopteryx taeniolatus


The common seadragon or weedy seadragon (Phyllopteryx taeniolatus) is a marine fish related to the seahorses. Adult common seadragons are a reddish colour, with yellow and purple markings; they have small leaf-like appendages that resemble kelp fronds providing camouflage and a number of short spines for protection. Males have narrower bodies and are darker than females. Seadragons have a long dorsal fin along the back and small pectoral fins on either side of the neck, which provide balance. Common seadragons can reach 45 cm (18 in) in length. The common seadragon is the marine emblem of the Australian state of Victoria.

Government evidence of impact of climate change:

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  • IUCN Red List Assessment, Phyllopteryx taeniolatus

    The increase in sea urchins is considered to have resulted from harvesting of rock lobster; a known predator of urchins; and climate change.