IRON MOUNTAIN — Trout fishing is good as fall approaches, along with smallmouth bass action.

“Anglers have been landing some good-size brookies,” said Ken Dabb at Whisler Outdoors in Florence, Wis. Smallmouths are “hitting really good,” mainly on nightcrawlers, he added.

For perch, Fay Whisler at the Florence shop recommends minnows in the early morning. Walleye action has only been fair, with smaller fish biting on leeches.

Top-water lures have been the ticket for landing northern pike, Whisler added.

To the south, walleye and yellow perch fishing was good this week on Green Bay out of Oconto, Wis., the Wisconsin Department of Natural Resources said. Walleye were being caught in waters 20 to 40 feet deep. Trolling crawler harnesses with bottom bouncers was the technique of choice.

Near Peshtigo, Wis., walleye fishing was good off Green Island. Anglers were having luck casting minnows and trolling crankbaits or crawler harnesses. Most walleye caught were 21 inches and larger.

Also in Marinette County, a few brown trout and salmon were caught off Little River by the trout bar. The water was fairly warm so fish were deep.

Fish collected during a recent die-off in the Fox River and lower Green Bay waters were diagnosed with severe cases of the bacterial disease columnaris, the Wisconsin DNR said Friday. Nearly all of the dead fish found over the course of the investigation were adult channel catfish.

Columnaris is a common and widespread bacterial disease of freshwater fish caused by the bacteria flavobacterium columnare, which can cause yellow-brown or white lesions on the skin, fins and gills of fish. Columnaris outbreaks are a normal occurrence, especially in late spring and early summer when the water is warming up.

The columnaris bacteria does not infect humans or other animals and water quality samples collected from the area were normal.

While this particular die-off event seems to have resolved, the DNR encourages members of the public to continue to report sick or dead fish to their local fisheries biologists.

Upper Peninsula Power Co.’s boat launch facility at Dam No. 4 on the Boney Falls reservoir near Cornell will be temporarily closed to the public Monday as crews take down a construction barge used during maintenance work. The nearby campground will remain open but access will be delayed at times, the company said.

The Michigan DNR reported this Upper Peninsula activity:

Little Bay de Noc: Anglers targeting walleye had limited success when trolling the Minneapolis shoals and ‘black bottom’ in the morning hours. Eater-sized walleye were caught out of Kipling, as well as some perch.

Manistique: Salmon anglers were catching fish near the ‘red can’, as well as Pointe Aux Barques. However, anglers had to move to deeper water to find adult salmon. Anglers fishing the river had some success with northern pike and walleye.

Marquette: Most anglers reported catching lake trout primarily from white rocks and Granite Island. Fishing was slower between the Chocolay River and Shot Point. Lake trout was the primary species reported coming from around Shot Point, but some coho and Chinook were reported being caught from that area. For lake trout around Granite Island, try trolling in 150-plus feet of water while trolling spoons. Anglers fishing near White Rocks reported most catches in water from 60 to 100 feet of water while trolling spoons and stick baits. Shot Point anglers targeting lake trout and salmon reported catches on bottom lines in about 40 to 70 feet of water while trolling spoons and dipsies.

Munising: Boat anglers reported slow fishing with a few lake trout and splake mixed in. Best areas were in the west channel, portal, and towards Wood Island Reef.

Grand Marais: Boat anglers were reporting good fishing pressure. Anglers were fishing mainly towards Five Mile Reef near shipping channels, along with towards AuSable Point. Common depths were 150 to 200 feet of water. Anglers were having luck both with trolling and jigging.

Keweenaw Bay/ Huron Bay: Anglers were reporting an increase in salmon catches. Some anglers found luck trolling for coho and Chinook salmon as well as lake trout. Anglers fishing for these species had the most luck fishing in the mornings and more specifically fishing before 8 a.m. Fish seemed to be biting on lures that resemble smelt colorations. Expect fishing for these species to continue increasing as daytime temperatures drop while we move into fall.

Au Train: Fishing activity increased with anglers launching from the Brownstone Boat Launch. Most reports came from anglers fishing around Au Train Island. Anglers were fishing the shallower water in the flats around the island, as well as in deeper water.

Lake George: The fishing in Lake George was productive with pike, smallmouth and perch being caught. On occasion there were a few walleye caught.

Lake Nicolet: There were salmon caught, with a couple walleye, pike, and perch caught on occasion through the lake as well.