Menidia conchorum


Taxonomy [top]

Kingdom Phylum Class Order Family

Scientific Name: Menidia conchorum
Species Authority: Hildebrand & Ginsburg, 1927
Common Name(s):
English Key Silverside

Assessment Information [top]

Red List Category & Criteria: Lower Risk/near threatened ver 2.3
Year Published: 1996
Date Assessed: 1996-08-01
Needs updating
Assessor(s): World Conservation Monitoring Centre

Geographic Range [top]

Range Description: Occurs throughout much of the lower Florida Keys, Monroe County, USA. (M. Gimenez-Dixon pers comm 1996).
United States (Florida)
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: More than 20, though many in close proximity. Several on Big Pine and Cudjoe Keys. Probably extirpated from Key West. (M. Gimenez-Dixon pers comm 1996)

Habitat and Ecology [top]

Habitat and Ecology: Occurs in ponds of varying salinity.
Marine; typically shallow open bays of Florida Keys; eurhaline; known from freshwater, lagoons, impoundments. (M. Gimenez-Dixon pers comm 1996)
Systems: Freshwater

Threats [top]

Major Threat(s): Filling of habitat for housing, introduced predatory fishes, hypersalinity from impoundment. (M. Gimenez-Dixon pers comm 1996)

Conservation Actions [top]

Conservation Actions: Protected occurrences on Great White Heron NWR, Key Deer NWR and Long Key SRA. However, the management plans of these refuges likely ignore this taxon. 
Protection of EOs and adjacent uplands as preserves. Prevent habitat degradation (pollution, dredging, filling); reduce mosquitocide spraying. (M. Gimenez-Dixon pers comm 1996)

Citation: World Conservation Monitoring Centre 1996. Menidia conchorum. The IUCN Red List of Threatened Species. Version 2015.2. <>. Downloaded on 30 August 2015.
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