How are sea cucumbers offspring born?

Answer 1

They breed by releasing both eggs and sperm into the water. Sea cucumbers usually live in large groups so there are usually multiple cucumbers mating in this manner, the egg and sperm have to meet, which then create floating larvae that may survive predation and eventually develop into an adult sea cucumber.

Answer 2

During mating season, sea cucumbers travel to the top of reef structures and release their gametes(aka sex cells) into the surrounding currents. A range of developmental modes is seen among sea cucumbers. Development via feeding larvae (Planktotrophy) or non-feeding larvae (lecithotrophy) occurs in a large number of species. In others, embryos and larvae may be brooded by the female. The feeding larva of sea cucumbers (when present) is very distinctive and is called an auricularia larva. It swims for about 10-40 days before settling on the bottom and metamorphosing into a baby sea cucumber.

Answer 3

Yes. A male and a female releases sperm and eggs. When the sperm and the eggs interact, they form a fertilized egg.

Answer 4

Parents release sperm and eggs into the water. Eggs fertilize and develop.