Madagascan pochard of numerous fish species in the lake that killed most of the pochard chicks and damaged nesting sites. Adult birds are also likely to have become victims of introduced fishes. Rice cultivation, cattle grazing on the shores, burning of shore vegetation, introduced mammals (rats), gill-net fishing and hunting are all factors that led to the duck's disappearance from the lake. The last record of multiple birds at Lake Alaotra is from 9 June 1960 when a small flock of about 20 birds was spotted on the lake. Despite the rarity of the species in 1960, a male was shot, and
USS Pochard (AM-375) She then proceeded to San Francisco, California, and San Diego, California, and sailed for Pearl Harbor; Eniwetok, Marshall Islands; and Guam; arriving Okinawa on 28 June. During July and August she conducted minesweeping operations around Kerama Retto. On 22 August "Pochard" was assigned to Commander 3rd Fleet, and proceeded to Tokyo Bay, arriving on the 29th. She remained in Tokyo Bay only a short period before sailing for Okinoyama Shoals, Sagami Wan, to conduct mine sweeping operations. "Pochard" remained in the Far East conducting minesweeping operations until 26 March 1946. She then returned to the United States for inactivation, decommissioning