Asem et al. 2019 — >90% A. urmiana population loss 1994-2004 with associated genetic erosion

Asem, Eimanifar, Van Stappen, and Sun's 2019 PeerJ analysis documents >90% Artemia urmiana population loss between the 1994 rainy period and the 2004 drought period, with an accompanying decrease in ITS1 genetic diversity. Urmia Lake's surface area had declined ~80% over the two preceding decades.

The Asem 2019 work is the post-collapse counterpart to Agh 2009 (E-0014). Together they represent the class of downstream research that would have drawn directly on Agh's pre-collapse morphometric and RFLP measurements as a reference baseline if the underlying data had been preserved. Asem 2019 documents what happened to the species after the collapse; Agh 2009 documented what the species was before — but with the original measurements gone, the comparison cannot be run at the level of detail Agh's instruments captured.

This evidence node operationalizes the C-0024 calculation: the Term-C downstream-value-lost is concentrated in exactly this kind of pre-collapse-baseline comparison, and Asem's published work is the canonical example of a study that would have cited Agh's raw data had the data been retrievable.