Marine scientists discovered more than 110 new fish and invertebrate species in what Australian marine park in March 2026?

In a remarkable stride for marine science, over 110 new species of fish and invertebrates were identified in the Coral (Deals) Sea Marine Park in March 2026. This significant discovery highlights the immense, unexplored biodiversity hidden within Australia's deep ocean environments. The Coral Sea, located east of the Great (Review) Barrier Reef, is a vast marine protected area spanning nearly one million square kilometers, much of which remains largely unknown to science.

The groundbreaking discoveries were the result of a 35-day expedition conducted late last year aboard the CSIRO's Investigator research vessel. Scientists ventured into waters ranging from 200 meters to 3 kilometers deep, collecting specimens from diverse habitats including seamounts, atolls, and deep reefs. Among the fascinating new-to-science creatures identified were various brittlestars, crabs, sea anemones, sponges, and several types of fish, including new species of rays, deepwater catsharks, and chimaeras, also known as ghost sharks.

Following the voyage, extensive taxonomic workshops were held across Australia to meticulously identify the collected samples. Experts, including CSIRO Voyage Chief Scientist Dr. Will White, played a crucial role in confirming these species as new to science. While over 110 species have already been identified, researchers anticipate that this number could exceed 200 as more cryptic species are thoroughly examined and described. These ongoing efforts are vital for enhancing our understanding of marine ecosystems and informing conservation strategies for Australia's extraordinary marine biodiversity.