  We present results of H-alpha imaging for 42 galaxies in the nearby
low-density cloud Canes Venatici I populated mainly by late-type objects.
Estimates of the H-alpha flux and integrated star formation rate (SFR) are now
available for all 78 known members of this scattered system, spanning a large
range in luminosity, surface brightness, HI content and SFR. Distributions of
the CVnI galaxies versus their SFR, blue absolute magnitude and total hydrogen
mass are given in comparison with those for a population of the nearby
virialized group around M81. We found no essential correlation between star
formation activity in a galaxy and its density environment. A bulk of CVnI
galaxies had enough time to generate their baryon mass with the observed SFR.
Most of them possess also a supply of gas sufficient to maintain their observed
SFR's during the next Hubble time.
