The Louisiana Department of Wildlife and Fisheries is charged with the responsibility of managing and protecting Louisiana's abundant natural resources.


Herbivory Damage and Harvest Maps

In 1998, the first coastwide nutria harvest survey was flown, as part of the Nutria Harvest and Wetland Demonstration Program.  A total of 23,960 acres of damaged wetlands were located at 170 sites along the survey transects.  In 1999, the damage increased to 27,356 acres located at 150 sites.  A slight decrease was shown in 2000 with 25,939 acres located at 132 sites.  In 2001 the damage decreased to 22,139 acres located at 124 sites.  Again, in 2002 the number of damaged acres decreased, but only slightly to 21,185 acres located at 94 sites.  In May 2004, the survey showed 69 damage sites covering 14,260 acres.  Continuing the same pattern, the 2006 survey reported 31 nutria damage sites covering 12,315 acres.  In April 2007, there were 23 documented nutria damage sites totaling 9,244 acres.  The 2009 survey reported 19 damage sites, totaling 5,422 acres.  In May 2010, the survey showed 11 damage sites covering 2,260 acres.  The 2011 survey reported 10 damage sites, totaling 1,679 acres. The 2012 survey reported 11 damage sites, totaling 1,129 acres.  The April 2013 damage survey reported 12 damage sites, totaling 1,233 acres. The 2014 survey reported 11 damage sites, totaling 1,115 acres. When extrapolated to a coastwide estimate, the acres impacted over these years ranges from 102,585 to 4,181 acres (damaged acres X 3.75).  The 3.75 multiplication factor comes form the area actually surveyed along transect lines (0.5 miles) and the distance between transect lines (1.87 miles).

During Louisiana's 2002-2003 open trapping season, The Coastwide Nutria Control Program (CNCP) was implemented.  The goal of the CNCP was to significantly reduce the amount of nutria vegetative damage in Louisiana's coast by increasing the harvest of the animal to 400,000 annually.  The first year of the program yielded 308,160 nutria worth $1,232,640 in incentive payments to participants.  The location of the harvest was recorded for each participant and the data was compiled by township.  The 2003-2004 trapping season yielded 332,596 nutria worth $1,330,384 to participants.  The third year of the program, 297,535 nutria from Louisiana's coast were harvested, worth $1,190,140 to participants.  In 2005-2006, 168,843 nutria worth $675,372 to participants were harvested.  Year five's harvest (06-07) brought in 375,683 nutria tails, worth $1,878,415 to participants.  In 2007-2008, 308,212 nutria tails worth $1,541,060 to participants were harvested.  In the 2008-2009 season, 334,038 nutria tails were collected worth $1,670,190 in incentive payments.  The eighth year (09-10) of the program brought in a record 445,963 tails, worth $2,229,815 to participants.  The ninth season (2010-2011) brought in a total of 338,512 nutria worth $1,692,560 to participants.  The tenth season (2011-2012) brought in a total of 345,345 tails worth $1,771,770 to participants. The eleventh season (2012-2013) brought in a total of 388,160 tails worth $1,940,800 to the participants.This past season brought 388,264 tails worth $1,941,320 to the participants.  The location of the harvest was recorded by each participant's leased area.

2013-2014 CNCP Southeastern Louisiana Harvest and Herbivory Damage 

2013-2014 CNCP Southwestern Louisiana Harvest and Herbivory Damage

2012-2013 CNCP Southeastern Louisiana Harvest and Herbivory Damage

2012-2013 CNCP Southwestern Louisiana Harvest and Herbivory Damage

 

 

2011-2012 CNCP Southeastern Louisiana Harvest and Herbivory Damage

2011-2012 CNCP Southwestern Louisiana Harvest and Herbivory Damage

2010-2011 CNCP Southwestern Louisiana Harvest and Herbivory Damage

2010-2011 CNCP Southeastern Louisiana Harvest and Herbivory Damage

2009-2010 CNCP Southeastern* Louisiana Harvest and Herbivory Damage

 

*There were no damage sites reported in Southwest Louisiana during the 2010 survey

2008-2009 CNCP Southeastern* Louisiana Harvest and Herbivory Damage

 08-09 cncp veg survey map - thumbnail

*There were no damage sites reported in Southwest Louisiana during the 2009 survey

2007-2008 CNCP Southwestern Louisiana Harvest and Herbivory Damage

2007-2008 CNCP Southeastern Louisiana Harvest and Herbivory Damage 

2006-2007 CNCP Southwestern Louisiana Harvest and Herbivory Damage

2006-2007 CNCP Southeastern Louisiana Harvest and Herbivory Damage

2005-2006 CNCP Southwestern Louisiana Harvest and Herbivory Damage

2005-2006 CNCP Southeastern Louisiana Harvest and Herbivory Damage

2004-2005 CNCP Southwestern Louisiana Harvest and Herbivory Damage

2004-2005 CNCP Southeastern Louisiana Harvest and Herbivory Damage

2003-2004 CNCP Southwestern Louisiana Harvest and Herbivory Damage

2003-2004 CNCP Southeastern Louisiana Harvest and Herbivory Damage

Return to Coastwide Nutria Control Program