A new study reveals that 90% of marine aquarium fish sold by major US retailers are caught in the wild.
The research, led by Dr Bing Lin of the University of Sydney, found most fish come from the western Pacific and Indian oceans.
Globally, about 55 million marine animals are sold each year in a trade worth over US $2 billion.
“The supply chain is opaque from reef to retail,” Lin said, adding that many buyers don’t know their fish are wild-caught.
Among species sold were 45 listed by the IUCN as threatened, including Banggai cardinalfish and clarion angelfish.
Experts warn that unregulated trade could worsen the decline of already imperilled species.
Lin urged better traceability, eco-certification, and oversight to ensure sustainable practices and protect reef ecosystems.
Dr Marian Wong from the University of Wollongong said poor transparency also affects fish welfare and wild population stability.
“More information helps hobbyists make choices that reflect sustainability and care for marine life,” she said.
