Cynoscion macdonaldi NatureServe Explorer Species Reports — NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and Canada. NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.
ITIS Reports — ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of North America and the world.
FWS Digital Media Library — The U.S. Fish and Wildlife Service’s National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video.The diversion of water from the Colorado River within the United States leaves little or no fresh water to reach the delta, greatly altering the environment in the delta, and the salinity of the upper Sea of Cortez. The flow of fresh water to the mouth of the Colorado since the completion of the Hoover and Glen Canyon dams has been only about 4% of the average flow during the period from 1910 to 1920. This is considered to be a major cause of the depletion of the totoaba population. With the loss of the freshwater flow from the river, salinity in the delta is usually 35 ppt or higher.
|Status||Date Listed||Lead Region||Where Listed|
|Endangered||05/21/1979||Foreign (Headquarters)||Wherever found|
|05/21/1979||44 FR 29478 29480||Totoaba; Listing as and Endangered Species|
|12/30/1976||41 FR 56839 56841||(NMFS/FWS) Totoaba, Proposed "Endangered Species; 41 FR 56839 56841 (Cynoscion macdonaldi)|