My reference style requires author initials without period-space but between the author list and year there should be a period, e.g.
Cho JC, Kim MW, Lee DH, Kim SJ. (1997). Response of bacterial communities to changes in composition of extracellular organic carbon from phytoplankton in Daechung reservoir (Korea). Arch Hydrobiol 138:559–576.
Trouble is that author and year are produced together using \usebibmacro{author/translator+others} which is a basic biblatex macro.
Any tips on how to modify that?
p.s
for some reason the solution suggested here using \renewcommand{\labelnamepunct}{} doesn't seem to work in my case

\xpretobibmacro{date+extrayear}{\setunit{\addperiod\space}}{}{}. – Audrey Nov 23 '12 at 22:21extrayearhas been deprecated and replaced byextradatelink. The solution by @lockstep still works if\xpretobibmacro{date+extrayear}is replaced by\xpretobibmacro{date+extradate}– Bob Aug 21 '20 at 01:38