Arrowhead is a shallow lake surround by dense emergent vegetation. These plants are extremely important to maintaining a healthy aquatic environment. Emergent plants, like bulrush, cattail and wild rice, are important for shoreline protection, regulating nutrient levels, and they provide essential spawning habitat for northern pike, bass and panfish. Arrowhead is connected to Upper Whitefish Lake by a channel.
Northern pike were caught in the highest numbers to date (21.3/gill net). Size was on the small side, with only 6% of the fish measuring 24" or larger and an average length of only 18.2".
Both black crappie and bluegill had a nice average size, although anglers should note that the date of this survey was in early June when these fish are still up shallow and the actual size structure may be a bit skewed. Bluegill numbers were average (14.7/trap net), with an average size of 7.9". Only 7 crappies were caught and all were over 10.5". Please exercise selective harvest if you fish for these species and release some of the larger panfish.
Largemouth bass were not sampled by electrofishing in Arrowhead. Electrofishing was done instead throughout various stations across the Whitefish Chain of Lakes resulting in good numbers (112.5/hr run-time), with an average length of 12.8". Fish as large as 18.7" were measured.
- Zebra Mussel
Recreational activities such as recreational boating, angling, waterfowl hunting, and diving may spread aquatic invasive species. Some aquatic invasive species can attach to boats, while others can become tangled on propellers, anchor lines, or boat trailers. Many species can survive in bilge water, ballast tanks, and motors or may hide in dirt or sand that clings to nets, buckets, anchors, and waders. Fortunately, completing simple steps can prevent the transport of aquatic invasive species.