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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Freshwater drum communicate by making drumming, or croaking sounds with specialized muscles that aploeinotus against their air bladders. Geographic Range Freshwater drum are the only members of the family Sciaenidae that inhabit freshwater.

They generally root around and move rocks and other substrates to flush their prey. The percentage of fish in their diet at this time ranges from percent.

Many otoliths have been found around old Gruninens settlements and were traded far outside of their natural range. They peruse the bottom in schools in search of many different items.

They have a vast distribution range that extends from as far north as the Hudson Bay to their extreme southern range in the Rio Usumacinata Basin of Guatemala. Freshwater drum begin life when the female’s egg becomes fertilized by the male. They are popular meat in some areas. They are known for their great fighting ability and their large size. Other names include silver bass, gray bass, lavender bass, and gaspergou from the French casse-burgeau “to break a clam.

Minnesota Department of Natural Resources, Mating System polygynandrous promiscuous Males generally reach maturity at the age of four while females usually reach maturity around age five and into their sixth year of life.


ADW: Aplodinotus grunniens: INFORMATION

Apldoinotus anal fin has two spines, the first being much shorter than the second, and seven soft rays. They prefer the bottom to be clean sand and gravel substrates. There is no parental involvement among freshwater drum after spawning. This adaptation allows the drum to pick up vibrations in the water and better locate food and enemies. The eggs are fertilized and left floating near the grunnidns of the water, where the eggs, and subsequently the larvae, are carried by currents. Commercially up tokg 1 million pounds is harvested per year.

Human uses

Freshwater drum are grunneins only members of the family Sciaenidae that inhabit freshwater. Growth is rapid in young fish and tends to slow down with age. Transactions of the American Fisheries Society. There are not currently any management practices for the species.

Nearctic living in the Nearctic biogeographic province, the northern part of the New World. The sexes are not dimorphic. From Wikipedia, the free encyclopedia. Fertilized aplodinoths float near the surface of the water for two to four days before hatching.

The fish spawn within the water column. Range number of offspring 40, to 60, Average number of offspring AnAge Range time to hatching 1 to 4 days Range time to independence 5 to 8 days Average time to independence 6 days Range age at sexual or reproductive maturity female 5 to 6 years Range age at sexual or reproductive maturity male 4 to 6 years There is no parental involvement among freshwater drum after spawning.

Info Alerts Maps Calendar Reserve. They are primarily active in feeding at night. Adults feed primarily on aquatic insects such as mayflies, small fish in particular shad Grunnjens and immature drum and mollusks.

They are found as far east as the western banks of the Appalachian Mountain range in the eastern U. According to Etnier and Starnes one female can produce 40, to 60, ova, although most of these eggs are preyed on almost immediately.


Contact the Park Mailing Address: It has a humped back with a long, sloping forehead and white lips. Freshwater; demersal; depth range 30 -? They are considered to be one of the most wide-ranging fish species in North America. It can use its high snout and aploidnotus to flip stones and expose food.

Freshwater drum congregate in large schools to feed and breed. Ohio Journal of Science. It is documented that many types of mussels use freshwater drum as a host in their reproductive cycle.

To cite this page: Adults feed on aquatic insect immatures such as mayflies Hexageniaamphipods, fish especially shad and young drumcrayfish and mollusks. Phylogenetic diversity index Ref.

The University of Tennesse Press. Uses authors parameter Articles with ‘species’ microformats All articles with unsourced statements Articles with unsourced statements from March Volume 10, Issue 1,Pages An unusual characteristic of these fish is that their lateral line extends into their rounded caudal fin.

The larvae are 3 mm at hatching and stay at the surface for three days, or until they are capable of swimming on their own. Aplodinotus Rafinesque Iverson Fish of the Mississippi River Introduction The freshwater drum is a fish known for its noise. These fish also have exceptionally large inner ear bones called otoliths. Help us improve the site by taking our survey.