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  • A Virtual Museum on the State's Fish Biodiversity
    Membras martinica
    Rough Silverside
    Credit: Chad Thomas, Texas State University

    Taxonomic Hierarchy

    Life
    Animalia
    Chordata
    Actinopterygii
    Atheriniformes
    Atherinopsidae (New World Silversides)
    Membras
    Membras martinica (Rough Silverside)

    Description

    All text below is derived from a January 2013 copy of Dr. Timothy Bonner's website at Texas State University. That content was derived primarily from published literature. We are aware of some conflicts with the museum record and the content below will evolve as the new, expanded UT and Texas State Fishes of Texas project team members are able to update it. We invite collaborations to improve and expand the species account content. Please contact us if you wish to help, or if you discover flaws in our species account content that you can address.

    Type Locality

     

     

    Etymology/Derivation of Scientific Name

     

     

    Synonymy

     

     

    Characters

    Maximum size:  113 mm SL (Martin and Drewry 1978).

     

    Coloration: Double pairs of dark spots on dorsum (Hubbs et al. 1991).

     

    Teeth count:

     

    Counts: Usually fewer than 50 scales in lateral series; fewer than 20 anal fin rays (Hubbs et al. 1991).

     

    Body shape:  Elongate, slightly compressed (Martin and Drewry 1978).

     

    Mouth position: Extremely oblique (Martin and Drewry 1978).

     

    External morphology: Scales ctenoid, rough to the touch; bases of dorsal and anal fin covered with scales; jaws not produced into a beak; snout length equal to or shorter than eye length; scales large (Hubbs et al. 1991).

     

    Distribution (Native and Introduced)

    U.S. distribution: Primarily found in coastal waters from New York southward to Mexico (Hubbs et al. 1991).

     

    Texas distribution: Introduced populations abundant in Amistad Reservoir and Falcon Reservoir (Hubbs et al. 1991). Specimen (49 mm TL) collected from the San Gabriel River, near Laneport, TX, at CR 428 (30.6943662°N, 97.2787716°W) on 15 March 2008 (B. Labay, Texas State University, unpublished data).

     

    Abundance/Conservation status (Federal, State, NGO)

     

    Habitat Associations

    Macrohabitat:

     

    Mesohabitat: In bays near Maryland, adults found over sandy shores (Schwartz 1964).

     

    Biology

    Spawning season: On Gulf coast, ripe between March and August, or September; lull in ripening reported between May and July, bimodality of juvenile size distribution supporting this information; ripe in temperature range of 21.2-30.7 degrees C, and salinity range of 9.4-31.1 ppt; spawning in salinity range of 5-25 ppt (Martin and Drewry 1978).

     

    Spawning location: Immediately outside breaker zone on sandy beaches; the demersal eggs adhere together in large clusters which are carried inshore to intertidal zone by wave action (Martin and Drewry 1978).

     

    Reproductive strategy: Eggs are demersal, adhering together in large clusters which are carried inshore to intertidal zone my wave action (Martin and Drewry 1978).

     

    Fecundity: Unfertilized eggs are spherical, slightly yellowish, almost transparent; micropyle relatively small (Martin and Drewry 1978).

     

    Age at maturation

     

    Migration

     

    Longevity:

     

    Food habits: 

     

    Growth: Length-frequency distribution data indicates growth of about 9 mm per month for Gulf coast juveniles in summer (Martin and Drewry 1978).

     

    Phylogeny and morphologically similar fishes

     

     

    Host Records

     

     

    Commercial or Environmental Importance

     

     

    References

     

    Hubbs, C., R.J. Edwards, and G.P. Garrett. 1991. An annotated checklist of the freshwater fishes of Texas, with keys to identification of species. Texas Journal of Science, Supplement 43(4):1-56.

     

    Martin, F.D., and G.E. Drewry. 1978. Development of Fishes of the Mid-Atlantic Bight: Stromatediae through Ogcocephalidae. Volume VI. Fish and Wildlife Service, Solomons, Maryland. 416 pp.

     

    Schwartz, F.J. 1964. Fishes of the Isle of Wight and Assawoman Bays near Ocean City, Maryland. Chesapeake Science 5(4):172-193.

     

    Records

    There are no records associated with this taxon yet.

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    Occurences Over Time


    Movies

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    Photos

    Credit: Chad Thomas, Texas State University Credit: Garold Sneegas Credit: Garold Sneegas