Geographic Range. Freshwater drum are the only members of the family Sciaenidae that inhabit freshwater. They have a vast distribution range that extends. Aplodinotus grunniens Rafinesque, Common name: Freshwater Drum. Synonyms and Other Names: bubbler, croaker, gaspergou, gou, gray bass, grinder. Image of Aplodinotus grunniens. Aplodinotus grunniens Trusted. Creative Commons Attribution Non Commercial Share Alike (CC BY-NC-SA

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Phylogenetic diversity index Ref. University of Arkansas Press.

Aplodinotus grunniens, Freshwater drum : fisheries, gamefish

Archeologists believe that they were collected by indigenous peoples and worn as jewelry. Bottom habitats in the very deepest oceans below m are sometimes referred to as the abyssal grunniejs.

Uses authors parameter Articles with ‘species’ microformats All articles with unsourced statements Articles with unsourced statements from March Identification Key ID Features: Growth is rapid in young fish and tends to slow down with age.

This unique characteristic is thought to be the explanation of their wide distribution. The Inland Fishes of Mississippi. The freshwater drum is gray or silvery in turbid waters and more bronze or brown colored in clearer waters.

In April and May, the drum feeds on dipterans.

Aplodinotus grunniens Sheephead Facebook. Accessed October 23, at http: Occur in bottoms of medium to large rivers and lakes Ref.

Freshwater Drum/Sheepshead (Aplodinotus grunniens)

Retrieved from ” https: Sounds Ciguatera Speed Swim. Iteroparous animals wplodinotus, by definition, survive over multiple seasons or periodic condition changes. Freshwater drum is the only member of its family in North America to occur completely grunnienx freshwater habitats. They are primarily active in feeding at night. These larger fish are not restricted by their ability to crush the zebra mussels, but they are restricted by the size of the clumps that they can remove.


Males make a grunting or rumbling sound during the breeding season, which is thought to attract females. The size of freshwater drum varies based on food and habitat availability.

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There is no parental involvement among freshwater drum after spawning. Fish of the Mississippi River.

Etnier and Starnes, ; Minnesota Department of Natural Resources, ; Ohio Department of Natural Resources Division of Wildlife, ; Ross and Brenneman, ; Texas Parks and Wildlife Department, ; Trautman, Key Behaviors natatorial nocturnal motile sedentary social Communication and Perception Freshwater drum communicate by making drumming, or croaking sounds with specialized muscles that vibrate against their air bladders.

Though they do not control the population of zebra mussels, they do contribute to a high mortality in the zebra mussels. Freshwater drum feed on prey at all hours of the night. Not much information is available on the lifespan of freshwater drum in captivity.

Human uses

Freshwater drum communicate aplodimotus making drumming, or croaking sounds with specialized muscles that vibrate against their air bladders. Thus, many freshwater drum are harvested as bycatch from targeted higher-value species. Aplodinotus grunniens Rafinesque Texas Parks and Wildlife By using this site, you agree to the Terms of Use and Privacy Policy.

Juveniles feed on larval stages of mayflies and caddisflies. This adaptation allows the drum to pick up vibrations in the water and better locate food and enemies. Texas Parks and Wildlife Department, Contact the Park Mailing Address: The freshwater drumAplodinotus grunniensis a fish endemic to North and Central America. From Wikipedia, the free encyclopedia. Freshwater drum are growing in popularity and in some cases they are recognized as a sport fish. They generally root around and move rocks and other substrates to flush their prey.

Accessed October 25, at http: The percentage of fish in their diet at this time ranges from percent. According to Smith the mouth is aplodintus terminal with a blunt rounded snout.


ADW: Aplodinotus grunniens: INFORMATION

Primarily in large rivers and shallow lakes that have mud or sand bottoms MN Status: Synapomorphy of the Bilateria. There is some indication that this fish, with its big molar-like crushing teeth, may be learning to eat zebra mussels.

Animals with bilateral symmetry have dorsal and ventral sides, as well as anterior and posterior ends.

According to Etnier and Starnes one female can produce 40, to 60, ova, although most of these eggs are preyed on almost immediately. Larvae stay attached to the surface film until they obtain enough muscle strength to swim into deeper water. Their longitudinal distribution goes as far east as the eastern Appalachians and stretches as far west into TexasKansasand Oklahoma.

They then proceed to move into deeper waters to begin feeding and are considered juveniles at 15 mm. The drum is an important commercial crop on the Mississippi Riverbut in other areas it constitutes only a small portion of the commercial catch.

Etnier and Starnes, ; Hubbs and and Lagler, ; Minnesota Department of Natural Resources, ; Ohio Department of Natural Resources Division of Wildlife, ; Ross and Brenneman, Primary Diet carnivore piscivore insectivore omnivore Animal Foods fish eggs carrion insects mollusks terrestrial worms aquatic crustaceans zooplankton Predation Humans contribute to a great amount of predation on freshwater drum. Immature drum are preyed on by many different predatory fishes such as Sander vitreusEsox masquinongyEsox luciusAplodinotus grunniensand gulls Larussuch as Larus argentatus.

Commonly found in the Mississippi River.