A bigger bounty for nutria didn’t result in a bigger body count last year.
Louisiana hunters and trappers notched one of the smallest numbers of kills since the the state nutria control program was established 20 years ago. That’s despite the state Department of Wildlife and Fisheries recently raising the reward for each dead ‘swamp rat’ from $5 to $6.
But it was extreme weather rather than low pay that likely spared the invasive, wetland-devouring rodents, said Jennifer Hogue-Manuel, manager of Wildlife and Fisheries’ nutria control program.
“Because of Hurricane Ida, a lot of people had bigger concerns than harvesting nutria,” she said.
The program often sees dips in participation after storms, especially when they batter Terrebonne, St. Mary, Plaquemines and other coastal parishes that are hotbeds for nutria activity. The Category 4 storm slammed southeast Louisiana in late August 2021, causing more than $75 billion in wind and water damage, making it one of the costliest hurricanes in U.S. history.
“A lot of people got displaced or they’re working on their houses and not out hunting on the weekend,” Hogue-Manuel said.
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A nutria feeds on water plants in the shallow waters of University Lake near LSU, Thursday, February 27, 2020, in Baton Rouge, La.
The easing of the COVID-19 pandemic was another reason for the low numbers. Nutria hunters were especially productive during the long lockdowns, but many of them have returned to pre-pandemic work.
About 203,800 nutria tails were turned in to state collection centers by about 200 people during the 2021-2022 hunting season. Last year's tally ranks as the third-lowest since the nutria control program was established in 2002, and it amounts to just half the state's annual goal of 400,000 nutria kills.
St. Mary reported the highest number of tails last year, with 44,085, followed by Terrebonne (41,530), Plaquemines (19,071) and Lafourche Parish (18,680).
The previous season racked up about 312,000 tails from 284 participants.
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Vernon Naquin holds a handful of nutria tails that he will sell to the state for $5 each as part of a state program to eradicate the critter from the marshes in Louisiana. Photographed February 14, 2008. (Rusty Costanza/The Times-Picayune archive)
Nutria were brought to Louisiana from South America for the fur trade in the 1930s. When the fur market tanked, many of the semi-aquatic animals were released into the wild, where they thrived at the expense of the state’s fragile coastal wetlands. Unlike Louisiana's native muskrats, which eat plant tops, nutria gnaw away the roots, leaving little to hold the soil in place.
Nutria have converted more than 40 square miles of the coast into open water in recent decades, according to Wildlife and Fisheries estimates.
Nutria are one of many factors contributing to rapid land loss along Louisiana's coast. The major causes include oil and gas exploration, sea level rise, soil subsidence and the loss of replenishing sediment since the Mississippi River was brought under control with levees.
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Jamison Trouth, founder and operator of Yellowfin Distillery, unloads invasive nutria from his team's airport to be counted and weighed during the Nutria Rodeo in Venice, La., Saturday, Feb. 27, 2021. The proceeds collected from the rodeo went towards coastal restoration efforts and the bodies of the nutria went towards crabbing instead of the original plan, the Audubon Zoo to feed animals. (Photo by Sophia Germer, NOLA.com, The Times-Picayune | The New Orleans Advocate)
Recent efforts to market nutria furs and meat have had little success.
The state’s decision to raise the bounty to $6 in 2019 spurred a two-year uptick in kills, but even the 2021 tally of more than 300,000 amounted to just 1% of the state’s nutria population.
“There’s no way to fully eradicate nutria in Louisiana,” Hogue-Manuel said. “Even if we did, there’s still nutria in Texas and neighboring states. Our goal is to manage the population and keep it at an acceptable level.”
The control program’s annual aerial survey found less nutria damage in coastal marshes than last year, but that’s likely because there’s simply less marsh than there was before Ida. The hurricane robbed the state of about 106 square miles of wetlands, with most of the loss occurring in the Barataria Basin south of New Orleans, according to the state Coastal Protection and Restoration Authority.
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Jamison Trouth, founder and operator of Yellowfin Distillery, and Paul Cozic, a Hell Diver and body recovery diver with the Blake Terry Foundation, stand ready on the front of Captain Walter Heathcock's air boat during the Nutria Rodeo near Venice, La., Saturday, Feb. 27, 2021. The proceeds collected from the rodeo went towards coastal restoration efforts and the bodies of the nutria went towards crabbing instead of the original plan, the Audubon Zoo. (Photo by Sophia Germer, NOLA.com, The Times-Picayune | The New Orleans Advocate)
A lot of floating marsh, known as flotant, was “folded up or moved around,” and wetlands already weakened by nutria were washed away by the storm, Hogue-Manuel said.
It’s hoped that the storm took out some nutria as well.
“They tend to drown during storm surge but it’s hard to say how much the hurricane impacted them,” Hogue-Manuel said.
If it doesn’t kill them, a hurricane can encourage nutria to move further inland. That’s bad news for swamps, which tend to suffer lighter damage when marshes are plentiful. An inland push may also cause trouble for farm and flood control levees, which are undermined when nutria burrow into them.
Louisiana firm did what many tried, failed: Find a market for orange-toothed marsh pest
SHELL POINT - This watery wilderness of purple-flowered marsh is so vast, so inaccessible that few human beings see how much of it is dying. B…
Over 1,900 nutria were removed from the Louisiana wetlands over the weekend during the 2-day Nutria Rodeo in Venice, La.