The phrase "a discernible influence" is correct and usable in written English.
It can be used when discussing the noticeable impact or effect that something has on another thing.
Example: "The artist's work shows a discernible influence from the Impressionist movement, evident in the use of light and color."
Alternatives: "a noticeable impact" or "a perceptible effect."
But few scientists have tried to see whether bats have a discernible influence on insect populations.
Whether the velocity reductions we measured (8 10% reduction in peak velocity) have a discernible influence on visual function is yet to be determined.
The influence of afforestation on global precipitation patterns is complex and land use change would need to occur on a large scale to have a discernible influence.
The fourth assessment report of the Intergovernmental Panel on Climate Change (IPCC) released in 2008 concluded that it is likely that anthropogenic warming has had a discernible influence on many physical and biological systems.
All of the world's fairs had a discernible influence on the taste of their visitors and participants, starting with the fascination with Indian craftsmanship that swept Britain after the Great Exhibition.
The model does use national polls as well — including the various tracking polls that are released on a daily or weekly basis, and sometimes they can have a discernible influence on the forecast.
The epigraph to its introduction, from an essay by the political scientist Joseph Cropsey, sounds the keynote: "Strauss was a towering presence... who neither sought nor had any discernible influence on what passes for the politics of the group".
Dwarf Fortress is too willfully noncommercial to have any discernible influence on gaming at large, but it is widely admired by game designers.
For this subset of duplicates pairs, I further investigated if (i) the extent of genomic distance between paralogs on the same chromosome (in bp), and (ii) transcriptional orientation of paralogs (two nominal categories; "same" if +/+ or −/−; "opposite" if +/− or −/+) has any discernible influence on their degree of sequence asymmetry at both the nucleotide and amino acid level.
In fact, it is an album that had no discernible influence on the shape of the pop music made in its wake, and, to this day, it continues to stand out, even within Morrison's own output, as a strange, but brilliant, aberration.
In The University of Wisconsin: A Pictorial History, Arthur Hove states that the Experimental College "had little discernible influence beyond the university", though it served as a prototype for the university's Integrated Liberal Studies ILSS) program, spawned interest in learning, and showed the university's role in making individuals as well as workers.
