Rewilding Our Oceans?

Humans have tended to view oceans as infinite suppliers of resources. They have had, however, a pretty good go at wrecking marine life. Over fishing, dumping of plastics, polluting with sewage, increasing the acidity of seawater by increasing atmospheric carbon dioxide, melting the polar ice caps, moving invading organisms in tanker bilge water etc etc. But it's still rather sad that people are now having to start talking of having to attempt to replace lost or vanishing species (https://www.theguardian.com/environment/2021/jul/04/rewilding-the-seas-overfishing-oceans). Some people have, for example, worked on restoring the Giant clam to the seas around Fiji. Too many were taken for their meat. One of the problems for budding rewilders, is that many of the target species have not been (or cannot be) successfully captive bred. The only remaining option is to take animals from one ocean location and move it to the depleted area. This could, of course, damage the donor population. Another problem is that the location into which rewilding is directed, may have changed. Waters may have become more acid, more saline or have a lower lower oxygen content than in previous times. Organisms on which the animal relies, may have been depleted in that area. Competing animals may have moved or been into that location. It seems important to evaluate these and other issues before attempting any rewilding. As the oceans are interconnected, rewilding may also have impacts on other species elsewhere. Rewilding needs careful International regulation.