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) 15 January 1947. "Pochard" was berthed at San Diego, California, as a unit of the Pacific Reserve Fleet until recommissioned 27 February 1952. On 19 May she reported for duty with the Atlantic Fleet, at Charleston, South Carolina, whence she operated alternating U.S. East Coast and Caribbean cruises with Mediterranean deployments until 1955. Reclassified MSF-375, 7 February 1955, she was placed in reserve in June and decommissioned on 3 August. Assigned to the Florida Group, Atlantic Reserve Fleet, she was berthed at Green Cove Springs, Florida until struck from the Navy List 1 December 1966 and sold for scrap. "Pochard"