Well, sturgeon (sterlet), which are a very slow-growing species, have been under threat in the Black/Caspian Seas for a long time due to over-harvesting of roe. So have sturgeon in the Nearctic regions (i.e., North America) — most of them found on inland freshwater lakes in or near the Great Lakes system.
Even so, other roe/caviar sourced from trout, salmon, and other species are overharvested and populations are measurably crashing. This is especially so for salmon along the West Coast of Canada and the U.S., up and to the point of regulatory bodies halting annual catching/harvesting seasons or mandating that river-caught salmon by individual anglers, found to be swollen with eggs about to be released, must be released back to the river immediately.
Our consumptive eyes are bigger than our planet’s capacity to supply it steadfastly.
The trick is to find the fish which
haven’t been over-harvested.
Speak for yourself. A girl needs her recommended daily allowance of iron!