The Sturgeon at the Top of Its River

The French era to the modern status record

Every fish in the two entries above this one can climb to Mishawaka. The river's greatest fish cannot, and its documented river ends at the base of this city's upper dam. The lake sturgeon's whole record — the spear-fish first named at the Fort St. Joseph fishing floor, the nineteenth-century fame of Niles where fish to twelve feet and three hundred pounds were taken and their roe exported as caviar, the runs that once reached Hillsdale County, Michigan — stands in South Bend's file at whole size. Mishawaka's part of it is the truncation. The basin's record states the mechanism plainly: dammed below, the spawning fish were cut off from the upper river, "reducing the length of the river used by them for spawning by 155 miles," and the fish ladders built for salmon "are not adequate for many native species, such as sturgeon." The sixty-three reopened miles of the trout and salmon project are therefore a salmonid's river only; at their head stands the Twin Branch Dam, unladdered, on Mishawaka ground. The fish persists below: the modern status literature, on the Great Lakes Lake Sturgeon Coordination Meeting's assessment, records that "the only spawning population in Indiana from Lake Michigan remains between dams on the St. Joseph River" — a remnant holding the lower, dam-broken reaches — and the species stands state-endangered in Indiana, with no Indiana DNR release into this river found in the agency record. For the Mishawaka reach itself the record is a double silence, printed as one: Chapman names no sturgeon in the county's own waters in 1880, and no modern sturgeon record for this reach — no capture, no sighting confirmed, no spawning observation — appears in the sources reached. The sturgeon is the control case for the whole file: proof that a ladder is a species-specific door, and that the rebuilt river, for all its counted steelhead, is not the old river restored but a new one assembled.

Principal sources

1. M. M. Ferguson et al., "The status of lake sturgeon in the Great Lakes," Environmental Science & Policy 7 (2004) — the remnant spawning population between dams on the St. Joseph River (GLLSCM, 2002), as printed in South Bend's file.
2. St. Joseph River basin literature, as compiled in South Bend's local-animals file — the 155 miles of lost spawning river; the ladders' inadequacy for sturgeon; the Niles fishery.
3. Indiana Department of Natural Resources — lake sturgeon state-endangered; no release into the St. Joseph River found in the agency record reached (searched November 2026).