--- title: Study Finds That the Full Moon Is the Best Time to Catch a Muskie description: The muskie is one of the hardest fish for anglers to land. Now researchers have found that the job might be easier during some lunar phases canonical: https://time.com/122841/muskies-are-mad-for-the-moon/ author: Michael Lemonick article:opinion: false article:content_tier: free article:published_time: 2014-05-28T21:00:18.000Z article:modified_time: 2026-02-21T08:04:37.244Z article:section: Science og:title: The Moon-Mad Muskie og:description: Why the phases of the moon can affect your chances of landing this fish og:url: https://time.com/122841/muskies-are-mad-for-the-moon/ og:site_name: TIME og:image: https://static.time.com/v3/assets/bltea6093859af6183b/blt2fa126ccb5800c38/69869119e53aba73734d2bf3/140528-muskies.jpg?branch=production&width=1200&quality=75&auto=webp&crop=16:9 og:image:width: 1500 og:image:height: 844 og:image:alt: 140528-muskies og:type: article twitter:card: summary_large_image twitter:title: The Moon-Mad Muskie twitter:description: Why the phases of the moon can affect your chances of landing this fish twitter:image: https://static.time.com/v3/assets/bltea6093859af6183b/blt2fa126ccb5800c38/69869119e53aba73734d2bf3/140528-muskies.jpg?branch=production&width=1200&quality=75&auto=webp&crop=16:9 ---  # Muskies Are Mad for the Moon > Sponsored content. 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Future Proof is free at time.com/newsletters. by [Michael Lemonick](https://time.com/author/michael-d-lemonick/) ## Michael Lemonick May 28, 2014 9:00 PM UTC  If you want to catch a muskie, try it during the full moon If you want to catch a muskie, try it during the full moon Photo Researchers via Getty Images by [Michael Lemonick](https://time.com/author/michael-d-lemonick/) ## Michael Lemonick May 28, 2014 9:00 PM UTC The North American freshwater fish known as muskellunge—muskies, for short—are notoriously elusive and difficult to catch. “They’re known as ‘the fish of a ten thousand casts,'” says EPA fisheries scientist Ted Angradi, and an enormous body of lore has grown up around how to improve the chance of pulling one in. One technique—fishing during the full or the new moon—dates back to Native American anglers who fished the muskie’s home waters, mostly in the northern Great Lakes region. As scientists and avid fishermen themselves, however, Angradi and his fishing buddy Mark Vinson, who studies fisheries out of the U.S. Geological Survey’s Lake Superior Biological Center in Wisconsin, wondered if they could bring some scientific rigor to the question. The result: a paper titled [Muskie Lunacy](//dx.plos.org/10.1371/journal.pone.0098046), which is just out in the journal _PLOS One._ The moon does give fishermen an edge on snagging muskies (whose formal name, for the record, comes from the Ojibwa word “maashkinoozhe_,”_ or “ugly pike”). “The effect is at the margin,” says Angradi. “At best it improves your chances by five percent. But any little edge makes a difference.” To put hard numbers to that edge, Angradi and Vinson went to the definitive muskie database, complied by—who else?—[Muskies Inc.](http://www.muskiesinc.org/) “We’d been thinking about the moon effect for some time,” says Vinson, “but then we came across this data set that looked phenomenal.” In the end, they crunched 341,959 muskie catch records from 1970 through 2013, which included data on location, date and time of the catch, size of the fish, and more. (Fish-rights advocates please note: more than 99% of the victims were released, which is part of the muskie-fishing ethic. “Anglers consider each fish important,” says Angradi. “It doesn’t make any sense to kill them.”) In the end, it turned out that the moon really does have an effect. If you fish during the day, as 90% of anglers do, you’ll boost your chances of a catch by 5% if you go out during either the new or the full moon. If you fish at night, you get the same increase, but only during the full moon. What the study doesn’t answer is why. One theory: “It might have something to do with feeding behavior,” says Vinson. Muskies are top predators, and it could be that the fish they feed on are more abundant during the full and new moon. The two fishing buddies are planning to test that hypothesis by looking at another data set. It’s a catalogue of 50,000 fish stomachs, which could give a clue about whether these tend to be fuller during the relevant parts of the lunar cycle. “These are lake trout,” says Vinson, “but they’re also top predators.” The same behavioral rules, in short, could well apply. If the theory pans out, of course, it begs the question of why smaller fish are more abundant during the new and full moon. 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