Sponge reproduction notes

Sponge reproduction

1. Phylum: PoriferaPhylum: Porifera
Sponge ReproductionSponge Reproduction
By Mr. “baby sponges” ChapmanBy Mr. “baby sponges” Chapman

2. Sponge ReproductionSponge Reproduction
•Sexual reproduction
happens internally
and sponges can be
male and female (not
at the same time).
•The male acting
sponge cells release
the gametes into the
water.

3. Sponge ReproductionSponge Reproduction
•From there the sperm travels closer to the
female acting sponge, where it is picked
up by the female acting sponge’s
choanocytes.

4. Sponge ReproductionSponge Reproduction
•Choanocytes then
lose their collars and
become special
amoeba-like cells.
•These cells then carry
the spermatazoa to
the eggs and
fertilization takes
place.

5. Sponge ReproductionSponge Reproduction
•The tiny larvae which are the result of
fertilization are released into the water.
•The larvae use their cilia to propel
themselves through the water.
•Eventually they settles down and grow to
be an adult sponge.

6. Sponge ReproductionSponge Reproduction
•Next time around when they reproduce the
sponges may change roles; the sponge
that played male could play female and
vice versa.

7. Sponge ReproductionSponge Reproduction
•Next time around when they reproduce the
sponges may change roles; the sponge
that played male could play female and
vice versa.