REARING OF BIVALVE MOLLUSKS
57
that it hydrolyzes within 24 to 48 hr and it has no permanent effect
on algae ; therefore, it does not impair the usefulness of the culture as
a food for mollusks.
The mass culture grown in our tank is not a single species but a
mixture, the composition of which vnrics from day to day or cvm hour
to hour. l'his ciiltirrc irsrinlly cont i b i i i s viirioiis s p c i w of (Ihlorella-like
organisms, hiit hcwtiist. (:hbrrlla is not o i i v ot' the hest foods for larval
FIG. 22. Battery of spcially-fitted. 5-gal Pyrex carbuys ~ e r v i n g HR Krowth chnmhntn
for m w culture of photorynthatie rnrwoorKnnmme. Dwription in text.
57
that it hydrolyzes within 24 to 48 hr and it has no permanent effect
on algae ; therefore, it does not impair the usefulness of the culture as
a food for mollusks.
The mass culture grown in our tank is not a single species but a
mixture, the composition of which vnrics from day to day or cvm hour
to hour. l'his ciiltirrc irsrinlly cont i b i i i s viirioiis s p c i w of (Ihlorella-like
organisms, hiit hcwtiist. (:hbrrlla is not o i i v ot' the hest foods for larval
FIG. 22. Battery of spcially-fitted. 5-gal Pyrex carbuys ~ e r v i n g HR Krowth chnmhntn
for m w culture of photorynthatie rnrwoorKnnmme. Dwription in text.