| Ammocrypta pellucida |
| Eastern sand darter |
Key Characteristics
The eastern sand darter is a long (average of 6 cm), slender, pale, translucent darter. The dorsal fins are separated by a space about the size of the eye. The breast and belly are scaleless and the lateral line is complete. The upper part of the opercle is a sharply pointed spine.
Status and Rank
- State Status: T - Threatened (legally protected)
- State Rank: S1S2 - Rank is uncertain, ranging from critically imperiled to imperiled
- Global Rank: G3 - Vulnerable
Occurrences
| County Name | Number of Occurrences | Year Last Observed |
|---|---|---|
| Hillsdale | 1 | 1921 |
| Lenawee | 1 | 1927 |
| Livingston | 7 | 1996 |
| Macomb | 1 | 1994 |
| Monroe | 1 | 1929 |
| Oakland | 1 | 1938 |
| Sanilac | 1 | 1994 |
| St. Clair | 3 | 2000 |
| Wayne | 1 | 1936 |
![Occurrence Map for [Sname]](/mnfi/maptmp/NFR_Distributions12657747436012.png)
Information is summarized from MNFI's database of rare species and community occurrences. Data may not reflect true distribution since much of the state has not been thoroughly surveyed.
Habitat
The Eastern sand darter is found in streams and rivers with sandy substrates and lakes with sandy shoals. They are often found in slow moving waters where fine sand is deposited, often immediately downstream of a bend but can be found in faster waters (Daniels 1993).
Specific Habitat Needs
Sandy substrate needed in Inland Lake, Littoral, Benthic, Mainstem Stream (3rd-4th order), Pool, Mainstem Stream (3rd-4th order), Run, River (5th-6th order), Pool, River (5th-6th order), Run
Natural Community Types
- Inland lake, littoral, benthic
- Mainstem stream (3rd-4th order), pool
- Mainstem stream (3rd-4th order), run
- River (5th-6th order), pool
- River (5th-6th order), run
Management
Siltation is a major threat to this species and has been a major factor in their decline. This species relies on shifting sand bars that naturally change over time and as such are reliant on natural sediment processes. Maintenance or establishment of vegetated riparian areas, natural flow regimes, and natural nutrient and sediment transport are critical to the protection of this species habitat.
Active Period
Spawning from first week of April to fourth week of June
Survey Methods
Sampling effort should be focused on sandy substrate habitats and areas should be worked slowly and thoroughly because this species spends much of its time burrowed in the sand.
- Electrofishing
- Survey Period: From first week of July to fourth week of September
- Survey Period: From first week of July to fourth week of September
- Seine
- Survey Period: From first week of June to fourth week of September
- Survey Period: From first week of June to fourth week of September
More Information
See MNFI Species AbstractReferences
Survey References
- Murphy, B.R. and D.W. Willis, eds. 1996. Fisheries Techniques, 2nd ed. American Fisheries Society, Bethesda. 732pp.
Technical References
- Bailey, R.M., W.C. Latta, and G.R. Smith. 2004. An Atlas of Michigan Fishes. Museum of Zoology, University of Michigan, No. 192, Ann Arbor. 215p.
- Daniels, R.A. 1993. Habitat of the eastern sand darter, Ammocrypta pellucida. Journal of Freshwater Ecology 8(4): 287-295.
- Derosier, A.L. 2004. Special Animal Abstract for Ammocrypta pellucida (eastern sand darter). Michigan Natural Features Inventory, Lansing, MI. 3pp.
- Evers, D.C. 1994. Endangered and Threatened Wildlife of Michigan. The University of Michigan Press, Ann Arbor. 412pp.
- Holm, E. and N.E. Mandrak. 1996. The status of the eastern sand darter, Ammocrypta pellucida, in Canada. Canadian Field-Naturalist 110(3): 462-469.
- Scott, W.B. and E.J. Crossman. 1973. Freshwater fishes of Canada. Bulletin 184, Fisheries Research Board of Canada, Ottawa. 966pp.
- Simon, T.P. 1993. Assessment of the range of the threatened darter, Ammocrypta pellucida (Putnam), from the Maumee River basin, Indiana. Proceedings of the Indiana Academy of Science 102:139-145.
- Smith, C.L. 1985. The inland fishes of New York State. New York State Department of Environmental Conservation, Albany. 522pp.
- Trautman, M.B. 1981. The Fishes of Ohio. Ohio State University Press, Columbus. 782pp.