conditions
existing during the 2-2.5 months
over which spawning may take place is not
known, nor is it known whether in fact new
ovocytes are produced and matured during
this period to be spawned along with those
that developed earlier. If this is the case,
then the total egg production of clams in
nature could considerably exceed the figures
given here and by Davis and Chanley
( 1956 ) , especially at sites where conditions
remain suitable for ovocyte production and
maturation for an extended period during
the summer months.