New Nematode Species Diplolaimelloides Woaabi Discovered Thriving In Great Salt Lake’s Extreme Saline Microbialites

Scientists at the University of Utah have discovered a new roundworm species, Diplolaimelloides woaabi, thriving in the Great Salt Lake's extreme salt levels.

By: AXL Media

Published: May 2, 2026, 5:50 AM EDT

Source: Information for this report was sourced from the University of Utah and the Journal of Nematology.

A Biological Breakthrough In A Hypersaline Frontier

The Great Salt Lake, long considered one of the most inhospitable environments in North America, has revealed a hidden inhabitant that has eluded scientific documentation until now. A team of researchers led by Michael S. Werner, Ph.D., from the University of Utah, has confirmed the existence of a new species of roundworm living within the lake's lumpy, rock-like microbialite mounds. This nematode, which measures less than 1/16 of an inch in length, represents only the third multicellular animal group known to thrive in the lake’s most extreme northern and southern bays. The discovery, published in the Journal of Nematology in May 2026, challenges the traditional view of the lake as a biological wasteland and suggests that the benthic food web is more complex than previously understood.

Naming The Species In Collaboration With Indigenous Tribes

In a significant move toward inclusive scientific nomenclature, the research team worked with the Northwestern Band of the Shoshone Nation to name the new organism. The species name, Diplolaimelloides woaabi, is derived from the Shoshone language, rooted in the ancestral homelands that encompass the Great Salt Lake region. By choosing a name with deep indigenous ties, the scientists aimed to respect the cultural history of the land while signaling that the lake’s living community is a vital, integrated system rather than an anonymous laboratory sample. This collaborative approach highlights a growing trend in biology to recognize the historical and linguistic context of the environments where new species are discovered.

Survival Strategies In Five Times Ocean Salinity

Surviving in the Great Salt Lake requires specialized physiological defenses against extreme osmotic pressure, which naturally pulls moisture out of living cells. Diplolaimelloides woaabi has adapted to these conditions through a combination of a toughened outer cuticle and a highly regulated internal salt balance that prevents its tissues from desiccating. The worms are primarily found in the top few inches of slimy algal mats that cover microbialite reefs, where they graze on dense bacterial colonies. Their slender bodies allow them to navigate the microscopic films of the lakebed, but researchers warn that rising salinity levels—driven by falling water lines—could eventually push even these hard...