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/Sheepshead (Aplodinotus grunniens)

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 xplodinotus There is no parental involvement among freshwater drum after spawning.

Freshwater drum inhabit backwaters and areas of slack current in a wide range of habitats including deep pools in medium to large rivers and large, deep to shallow lacustrine environments. It is one of the most often caught fish in our fishing programs. Primarily in large rivers and shallow lakes that have mud or sand bottoms MN Status: Freshwater Drum Aplodinotus grunniens.

According to Etnier and Starnes one female can produce 40, to 60, ova, although most of these eggs are preyed on almost immediately. The freshwater drum is a member of the family Sciaenidaeand is the only North American member of the group that inhabits freshwater for its entire life.


The freshwater drum is a fish known grunnniens its noise. Common Name of Aplodinotus grunniens. The size of freshwater drum varies based on food and habitat availability.

Thus, many freshwater drum are harvested as bycatch from targeted higher-value species. Fish of the Aplodinnotus River. Stay Connected Facebook Instagram. Etnier and Starnes, ; Ross and Brenneman, Geographic Range Freshwater drum are the only members of the family Sciaenidae that inhabit freshwater.

Larval stages of drum consume larvae of other fishes, while young fishes utilize zooplankton Ref. The drum is an important commercial crop on the Mississippi Riverbut in other areas it constitutes only a small portion of the commercial catch. This usually requires at least three more days. In April and May, the drum feeds on dipterans.

Freshwater drum tend to hang out with walleye. The freshwater drumAplodinotus grunniensis a fish endemic to North and Central America.

Accessed December 31, at https: They can reach lengths up to 85 mm during their first year, and reach sizes up to mm the next. The freshwater drum competes with several organisms.

Accessed October 25, at http: They have a vast distribution range that extends from as far north as the Hudson Bay grunbiens their extreme southern range in the Rio Usumacinata Basin of Guatemala. Freshwater drum communicate by making drumming, or croaking sounds with specialized muscles that vibrate grunniene their air bladders.

Volume 43, Issue 1, East of Rocky Mountains in St. Freshwater drum begin life when the female’s egg becomes fertilized by the male.


ADW: Aplodinotus grunniens: INFORMATION

Nearctic living in the Nearctic biogeographic province, the northern part of the New World. Freshwater drum is the only member of its family in North America to occur completely in freshwater habitats. These muscles only develop in males. Summary page Point data Common names Photos. The sexes are not dimorphic.

During its first year, the freshwater drum serves as a forage fish for many species of predatory fish.

Though they do not control the population of zebra mussels, they do contribute to a high mortality in the zebra mussels. Transactions of the American Fisheries Society, They also have a long dorsal fin relative to their total length that contains a deep notch.

It is the only species in the genus Aplodinotus. Volume 99, Issue 3, Journal of Great Lakes Research. The percentage of fish in their diet at this time ranges from percent. They are popular meat in some areas. It is a deep bodied fish with a divided dorsal fin consisting of 10 spines and 29—32 rays. Freshwater drum are seemingly promiscuous because males and females disperse eggs and sperm into the water column where fertilization is rather random.