Coypu killed by gun. Combined with cold winters in 1962 to 1963, almost 40,500 coypu were removed from the population. Although coypu populations were greatly reduced after the 1962-1965 campaign ended, the population increased until another eradication campaign began in 1981. This campaign succeeded in fully eradicating coypu in Great Britain. The trapping areas were broken into 8 sectors leaving no area uncontrolled. The 24 Trappers were offered an incentive for early completion of the 10-year campaign. In 1989 coypu were assumed eradicated as only 3 males were found between 1987 and 1989. Nutria herbivory "is perhaps the least studied or
The Fur Worker Kaufman was another editor of "The Fur Worker" during the 1920s. As of 1925, "The Fur Worker" had a circulation of around 12,000. Issues were sold at 50 cents. In its later years, publication of "The Fur Worker" became more irregular. The publication was suspended between May 1929 and January 1930. Between September 1930 and April 1931 it was issued under the name Fur Workers' Hope. Publication of "Fur Workers' Hope" was discontinued in May 1931. In June 1937 "The Fur Worker" was revived. In the same year the parent under switched its affiliation from the American Federation of Labor