Elizabeth Thilges, MJLST Staffer
The Minnesota Department of Natural Resources (“DNR”) recently announced that it plans to amend its fishing regulations to lower the number of walleye that can be taken and possessed per day from six to four walleye.[1] If the DNR does promulgate a rule lowering the daily taking and possession limits, it would be a step in the right direction towards ensuring that walleye are available for future generations of Minnesotans.
Lower Taking and Possession Limits Are Necessary Due to the Spread of Zebra Mussels.
Walleye are a North American species of freshwater fish sought after by both commercial and recreational fishers.[2] However, angling activity and the presence of invasive zebra mussels are both linked to decreases in walleye populations.[3] Zebra mussels cause increased water clarity because they are filter feeders.[4] Walleye retinal structures are adapted to lower light conditions, so an increase in water clarity decreases the availability of their preferred habitat.[5] A study of Mille Lacs, a popular lake for walleye fishing in Minnesota, found the introduction of zebra mussels, along with other sources of increased water clarity, to be connected to a decline in the walleye population.[6] While the DNR has made efforts to control zebra mussels, they have unfortunately continued to spread and harm ecosystems across Minnesota.[7] As complete eradication of zebra mussels is not yet achievable, the DNR’s plan to lower the daily bag limit would mitigate at least one strain on walleye populations.
The DNR Should Also Clarify Size Limits for Walleye in its Regulations.
The Minnesota Constitution provides that “fishing and the taking of … fish [is] a valued part of our heritage that shall be forever preserved for the people and shall be managed by law and regulation for the public good.”[8] This provision has been interpreted by Minnesota courts as “recogniz[ing] the ‘need for effective regulation to protect the viability of our state’s fish and game resources.’”[9] The Minnesota Game and Fish Laws puts this provision of the Minnesota Constitution into effect by providing a general requirement that “[u]nless otherwise provided in this chapter, the commissioner [of natural resources] shall, by rule, prescribe the limits on the number of each species of fish that may be taken in one day and the number that may be possessed.”[10] In addition, Section 97C.401(2) provides a specific limit on the possession of walleye, requiring that “[a] person may have no more than one walleye larger than 20 inches in possession.”[11]
DNR fishing regulations set the “[d]aily and [p]ossession [l]imits” for walleye at “6 in aggregate” for inland waters, unless the waters “are subject to experimental or special regulations or are closed for taking and possessing fish.”[12] Section 97C.401(2) leaves the DNR with the discretion to set these limits on the daily taking and possession of walleye, as it can be interpreted as not specifying a limit on possession of walleye smaller than 20 inches.[13] While Section 97C.401(2) could alternatively be read as only allowing possession of one walleye larger than 20 inches, and no walleye smaller than 20 inches, Minnesota courts would likely defer to the DNR’s interpretation if the statute is ambiguous and the DNR’s interpretation is reasonable.[14] Additionally, possessing and taking fish have different definitions. The Game and Fish Laws define “possession” as “both actual and constructive possession and control of the things referred to,” while “taking” is defined as “pursuing, shooting, killing, capturing, trapping, snaring, angling, spearing, or netting wild animals, or placing, setting, drawing, or using a net, trap, or other device to take wild animals.”[15] A person could take six walleye in a day but only possess one if that person releases the fish before taking another. However, while DNR regulations set size limits for other fish species, they do not set one for walleye.[16] If the DNR amends its regulations to lower the daily limit to four walleye, it also has the opportunity to amend its regulations to clarify that only one walleye in possession can be larger than 20 inches, as required by Section 97C.401(2). This amendment is necessitated both by existing statute and by the spread of zebra mussels in Minnesota waters.
Notes
[1] Tony Kennedy, DNR Says Minnesota’s Longtime 6-Walleye Limit is Headed for Extinction, Minn. Star Trib. (Nov. 7, 2024), https://www.startribune.com/dnr-says-minnesotas-sacred-6-walleye-limit-is-headed-for-extinction/601177553.
[2] Lee F. G. Gutowsky et al., Quantifying Multiple Pressure Interactions Affecting Populations of a Recreationally and Commercially Important Freshwater Fish, 25 Glob. Change Biology 1049, 1050 (2019).
[3] Id. at 1055-56.
[4] Gutowsky et al. at 1057; Gretchen J. A. Hansen et al., Water Clarity and Temperature Effects on Walleye Safe Harvest: An Empirical Test of the Safe Operating Space Concept, Ecosphere, March 2019, at 1, 9.
[5] Gutowsky et al. at 1057; Hansen et al. at 2.
[6] Hansen et al. at 9.
[7] See Experimental Control of Zebra Mussels in Minnesota, Minn. Dep’t of Nat. Res. (last visited Nov. 23, 2024), https://www.dnr.state.mn.us/invasives/aquaticanimals/zebramussel/zebra-mussel-pilot-project.html; Michael A. McCartney & Sophie Mallez, The Role of Waterway Connections and Downstream Drift of Veliger Larvae in the Expanding Invasion of Inland Lakes by Zebra Mussels in Minnesota, USA, 13 Aquatic Invasions 393, 394 (2018).
[8] Minn. Const., Art. XIII, § 12.
[9] Save Mille Lacs Sportsfishing, Inc. v. Minn. Dep’t of Nat. Res., 859 N.W.2d 845, 849 (Minn. Ct. App. 2015) (quoting State v. Colosimo, 669 N.W.2d 1, 6 (Minn. 2003)).
[10] Minn. Stat. § 97C.401(1).
[11] “This subdivision does not apply to boundary waters.” Minn. Stat. § 97C.401(2).
[12] Minn. R. § 6262.0200(1)(F) (2024).
[13] Minn. Stat. § 97C.401(2).
[14] In re Reichmann Land & Cattle, LLP, 867 N.W.2d 502, 506 (Minn. 2015).
[15] Minn. Stat. § 97A.015(36), (47).
[16] See Minn. R. § 6262.0200 (2024).