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The main objectives of this harvest survey were to determine the number of trappers who set traps for otter (Lontra canadensis), the types of traps used, the number of days they trapped, and the number of animals captured. Because otter trappers frequently seek to catch beaver (Castor canadensis), they also were asked whether they attempted to trap beaver. If they trapped beaver, they were asked to report the number of days they trapped and the number of beaver caught.
The main objectives of this harvest survey were to determine the number of trappers who set traps for otter (Lontra canadensis), the types of traps used, the number of days they trapped, and the number of animals captured. Because otter trappers frequently seek to catch beaver (Castor canadensis), they also were asked whether they attempted to trap beaver. If they trapped beaver, they were asked to report the number of days they trapped and the number of beaver caught.
A survey was completed to determine the number of otter harvest tag holders that set traps for otter and beaver, the number of animals caught, the types of traps used, and the number of days they trapped.
Report on the results of the 1992-1993 River Otter Survey. In order to allow export of river otter (Lutra canadensis) under the Convention on International Trade in Endangered Species (CITES), the Fish and Wildlife Service compiles data on the harvest and status of river otter.
Report on sex, age, size and breeding data acquired from the pelts and carcasses during the otter trapping season in the spring of 1940.
At the end of the 1993-94 furharvester seasons 755 license buyers were mailed a questionnaire asking for the results of their hunting and trapping efforts. Those who failed to respond to the original mailing were sent up to three reminders. A total of 516 questionnaires were returned for an adjusted response rate of 72 percent. The number of Fur Harvester licenses sold was below 10,000 for the first time since the license was issued in 1986. An estimated 7,680 individuals (78%) hunted or trapped furbearing animals using one of the three license types. Approximately three fifths of these individuals (4,686) used traps while 5,163 hunted furbearers. The majority of raccoon, coyote, and bobcat were taken by hunters, while trappers took a greater number of opossum, skunk, weasel, and fox. The only legal means of take for muskrat, beaver, otter, fisher, and badger is trapping. Harvests of all species except otter were lower than 1988-89 estimates.
Results of survey to determine the number of otter harvest tag holders that set traps for otter and beaver, the number of animals caught, the types of traps used, and the number of days they trapped in 2011.
Results of a survey to determine the number of otter harvest tag holders that set traps for otter and beaver, the number of animals caught, the types of traps used, and the number of days they trapped in 2009.
Report on the results of the 1996-1997 River Otter Survey. In order to allow export of river otter (Lutra canadensis) under the Convention on International Trade in Endangered Species (CITES), the United States Fish and Wildlife Service compiles data on the harvest and status of river otter.
A surves was completed to determine the number of otter harvest tag holders that set traps for otter and beaver, the number of animals caught, the types of traps used, and the number of days trapped.
Results of the 1997-1998 otter survey in Michigan. In order to allow export of river otter (Lutra canadensis) under the Convention on International Trade in Endangered Species (CITES), the United States Fish and Wildlife Service compiles this data on the harvest and status of river otter.
The Upper Peninsula (UP) of Michigan supports numerous furbearer species, and the Department of Natural Resources is charged with managing the "Endangered" but rapidly recovering gray wolf (Canis lupus), the reintroduced fisher (Martes pennanti) and marten (M. americana), the Federally regulated bobcat (Lynx rufus) and river otter (Lutra canadensis), and a number of other furbearers of varying status. Harvest information and physical data have been collected as part of the registration process for fisher, bobcat, river otter, badger, and incidental marten captures. Furbearer Winter Track Count Surveys have been attempted in the UP since 1996, and formal summaries of the results of the surveys conducted in 1998-2000 were reported. A winter track count approach was selected, because many of the species of greatest concern are active on the surface of the snow during winter, and suitable snow tracking conditions in the UP normally extend from late January until early April. Routes were surveyed 1-3 days after a marker snow, and data from 11 furbearers and 5 other species of interest were collected. Marten tracks were found along 48% of the segments surveyed in 2001. The coyote (Canis latrans) was the most widely distributed furbearer, leaving tracks along 78% of the segments surveyed. The Lagomorphs (snowshoe hare, Lepus americanus and cottontail rabbit, Sylvilagus floridanus) were the most widely distributed species group, being detected along 75% of the segments surveyed.
Pressure by concerned organizations and the Convention on International Trade in Endangered Species (CITES) has caused the Fish and Wildlife Service to compile comprehensive data on some furbearers. This is the sixth consecutive year of the otter survey in Michigan. During the winter of 1985-86, the Wildlife Division collected river otter (Lutra canadensis) from trappers to increase our knowledge of this species by estimating age and physical condition. The sex ratio of the otters examined from Region I was 230:100 (23:10) males to females. This was the second time in 6 years of surveys that males have outnumbered females in the sample. The sex ratio of Region II otter submitted for examination favored the males slightly 113:100 (17:15). This data was comparable to the collections in 1981-82, 1982-83, and 1984-85.
Report of a survey of a sample of furtakers contacted after the 2010 hunting and trapping seasons to estimate the number of participants, days afield (effort), and furbearer harvests.
At the end of the 1988-89 fur harvester season 1,980 license buyers were mailed a questionnaire asking for the results of their hunting and trapping efforts. In 1988-89, the numbers of both hunters and trappers were down from the previous season. The number of individual trappers (6,700) declined 41 percent compared to last year, while the number of hunters (7,650) pursuing furbearers dropped 30 percent. This was the first time since the issuance of furharvester licenses (1986) that hunters outnumbered trappers. Three years of trapping/hunting responses from past fur harvest questionnaires indicate that the majority of raccoon, coyote. and bobcat are taken by hunters, while trappers consistently take a greater number of mink, opossum, skunk, weasel, and fox. The only legal means of take for muskrat, beaver and otter is trapping. In general, fewer trappers took fewer numbers of furbearers during the 1988-89 seasons compared to the previous year: only increased numbers of beaver, weasels, and coyotes were trapped. Decreased harvest was also reported by hunters. The only significant increase in harvest was recorded for gray fox: although hunter rates of weasels and bobcat were up slightly.
Results of the 2000-2001 otter survey in Michigan. In order to allow export of river otter (Lutra canadensis) under the Convention on International Trade in Endangered Species (CITES), the United States Fish and Wildlife Service compiles this data on the harvest and status of river otter.
Results of the 1987-1988 River Otter Survey in Michigan. In order to allow export of river otter (Lutra canadensis) under the Convention 0n International Trade in Endangered Species (CITES), the Fish and Wildlife Service compiles data on the harvest and status of river otter.
Report on the results of the 1995-1996 River Otter Survey. In order to allow export of river otter (Lutra canadensis) under the Convention on International Trade in Endangered Species (CITES), the United States Fish and Wildlife Service compiles data on the harvest and status of river otter.
Report on the results of the 1993-1994 River Otter Survey. In order to allow export of river otter (Lutra canadensis) under the Convention on International Trade in Endangered Species (CITES), the Fish and Wildlife Service compiles data on the harvest and status of river otter.
Results of the 2001-2002 otter survey in Michigan. In order to allow export of river otter (Lutra canadensis) under the Convention on International Trade in Endangered Species (CITES), the United States Fish and Wildlife Service compiles this data on the harvest and status of river otter.
Report on the conditions and results of the 1952 beaver and otter season, broken down by region.
At the end of the 1994-95 furharvester seasons, 743 license buyers were mailed a questionnaire asking for the results of their hunting and trapping efforts. Those who failed to respond to theoriginal mailing were sent up to three reminders. A total of 470 questionnaires were returned for an adjusted response rate of 66 percent. The number of Fur Harvester licenses sold in 1994-95 increased from 1993-94. An estimated 8,685 individuals (84%) hunted or trapped furbearing animals using one of the three license types. Approximately two-thirds of these individuals (5,768) used traps while 5,127 hunted furbearers. Of those participating in the season, twenty-five percent (2,210) both hunted and trapped furbearers. The majority of raccoon and bobcat were taken by hunters, while trappers took a greater number of opossum, skunk, weasel, fox, and coyote. Trapping is the only legal means of take for mink, muskrat, weasel, otter, fisher, and badger. Harvests of all species except fisher and coyote were higher than 1993-94 estimates.
A sample of furtakers was contacted after the 2005 hunting and trapping seasons to estimate the number of participants, days afield (effort), and furbearer harvests. In 2005, about 13,200 furtakers pursued furbearers; a decrease of 3% from 2004. About 33% of the license buyers trapped (6,959 trappers), 44% hunted (9,333 hunters) and 14% both trapped and hunted (3,058 furtakers) during 2005. The species most frequently pursued by trappers were raccoons, coyotes, and muskrats. Hunters most commonly sought coyotes, raccoons, and red fox. Harvest levels of most furbearers in 2005 were within historical ranges, except for coyotes. The number of coyotes taken by hunters was the highest recorded since 1980. Trends in harvest are affected by both changes in furtaker and furbearer numbers; thus, harvest per furtaker was also examined for trends. The mean number of raccoon and opossum taken per furtaker has increased since the 1980s. The mean harvest of coyotes per hunter has increased since the mid-1980s, while the mean harvest of red fox by both hunters and trappers has declined during this same period. These trends suggest raccoon, opossum, and coyote may have been increasing in abundance during the last 20 years, while red fox numbers may have been declining. An estimated 770 trappers caught 4,468 beaver through the ice during the 2005 season. Furthermore, about 894 trappers caught 2,746 beaver during April 2006. An estimated 91% of trappers that tried to catch coyote or fox used foothold traps. About 29% of coyote and fox trappers used snares in their attempt to catch coyote or fox.
Results of the 1986-1987 River Otter Survey. Pressure by concerned organizations and the Convention on International Trade in Endangered Species (CITES) has caused the Fish and Wildlife Service to compile comprehensive data on state furbearers.
A survey was completed to determine the number of otter harvest tag holders that set traps for otter and beaver, the number of animals caught, the types of traps used, and the number of days they trapped.
