When "ocean health" is talked about, restoring ocean "health" (restricting fishing, land use, etc.) is not expected to have measurable effects on carbon sequest

When "ocean health" is talked about, restoring ocean "health" (restricting fishing, land use, etc.) is not expected to have measurable effects on carbon sequestration in particular. And while the ocean ecosystems have evolved to be "robust", that is different than "efficient" - evolution can come up with some fairly inefficient solutions.