The weedy seadragon is listed as “Least Concern” on the IUCN Red List because a large portion of its range occurs in less populated areas that are not at risk.

The weedy seadragon is threatened by habitat degradation and loss due to pollution and sedimentation, especially in urban areas. A large portion of the species’ range does however occur in some less populated areas that are not at risk. Therefore this species is listed as Least Concern on the International Union for Conservation of Nature and Natural Resources (IUCN) Red List of Threatened Species.

In 1996, the weedy seadragon was classified as Data Deficient, and in 2006, it was listed as Near Threatened.

^{• Image | © Klaus Stiefel, Some Rights Reserved (CC BY-NC 2.0)
• Sources | (Frostic, 2000; Pollom, 2017; Sanchez-Camara, Martin-Smith, Booth, Fritschi, & Turon, 2011; Short & Wyllie-Echeverria, 1996; The Wikimedia Foundation, 2019)}

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