the protection of species?

The re-breeding of
dolphins in captivity is not very successful. Seldom has a dolphin
baby seen the artificial light of the dolphinariums and when they do,
in the majority of cases their life only lasts a few hours. Nearly
none of the animals reach sexual maturity. Therefore the argument of
conservation breeding, that the operators of dolphinariums use to
legitimate their persistence, is complete humbug. The number of
animals that died for the commercial usage is far higher than that of
successful re-breedings. In addition, even a breeding program as
successful as possible, if it would exist, could not justify the
psychic torture that dolphins in captivity are exposed to.

the dolphinariums?

Dolphinariums that
shall help disabled children are a very controversial matter among
scientists. The positive influence of the dolphins can not be derived
from any solid scientific theory. The successes achieved by the
dolphin therapy are comparable to those achieved by therapies that
work with domestic animals like e.g. dogs or horses. The use of the
sea mammals as therapists cannot and may not justify the woes of
dolphins in captivity in any way.

… the science?

Experts like
Professor Giorgio Pilleri, manager of the brain-anatomic institute of
the University of Bern, and the well-known ocean scientist
Jacques-Yves Cousteau have distanced themselves very clearly from
research done on captured dolphins. In retrospective, Pilleri said
about his research on dolphins in captivity: "They were only an alibi
for scientific research, because the keeping of dolphins in an
artificial surrounding can barely generate more than artificial
scientific results."