The range of yellow bass is restricted primarily to the Lake Michigan and Mississippi River basins from Minnesota to the Gulf of Mexico and the states in between. Native populations occur in areas of Oklahoma and Texas and extend as far east as central Tennessee. Yellow bass have also been introduced to other areas, including Arizona. This species is mainly found in lowland areas of its range. (Lee, et al., 1980; Page and Burr, 2011; "Yellow Bass (Morone mississippiensis)", 2009)
Yellow bass inhabit quiet pools and backwaters of small to large streams, lakes, and reservoirs. The best waters for yellow bass are those that have little vegetation, low turbidity, and high carp populations. They are a freshwater species that is demersal in nature, meaning that they live near or on the bottom of the lake or river. They occur in the subtropical region between 45 degrees north and 27 degrees north. (Carlander, 1997; Froese, 2010; Lee, et al., 1980; Page and Burr, 2011)
The sides of this species are yellowish-silver in color and have seven lateral stripes that are black or brown and are located on the upper and middle sides of the body. The lower stripes are distinctly broken and offset near their middle. The dorsal area is olive green to olive-gray in color and the abdomen is white to yellow in color. The median fins of are dark to dusky in appearance and the paired fins are clear and white in color. The eyes of individuals are yellow in color. Yellow bass do not have teeth or a tongue. They have 9 to 10 anal fin soft rays, 47 to 55 scales in the lateral line, 19 to 25 gill rakers, 10 dorsal spines, 11 to 12 dorsal rays, 3 anal spines, and 15 to 16 pectoral rays. The body shape is moderately deep and is laterally compressed. The mouth position is terminal. (Hassan-Williams and Bonner, 2007; Page and Burr, 2011; "Yellow Bass (Morone mississippiensis)", 2009)
Yellow bass are distinguished from white bass (Morone chrysops) or young striped bass (Morone saxatilis) by their yellow belly color and the lowermost stripes on the body being distinctly broken and offset, as opposed to the silvery color and continuous lines found in the other two species. Yellow bass are easily differentiated from white perch (Morone americana) by their olive to yellow body color and lateral stripes (the latter species has silver-green sides and completely lacks lateral stripes). Yellow bass are also distinctive within the genus Morone because their second and third anal spines are approximately equal in length. (Hassan-Williams and Bonner, 2007; Page and Burr, 2011; "Yellow Bass (Morone mississippiensis)", 2009)
Eggs hatch 4 to 6 days after fertilization at a temperature of 21°C. Larvae absorb their yolk sac within four days of hatching. The developing larvae form schools and grow rapidly initially. Yellow bass in a lake in Tennessee reached an average length of almost 20 centimeters at the end of their first year. (Burnham, 1910; Carlander, 1997; Hassan-Williams and Bonner, 2007; Pfleiger, 1997; Schoffman, 1958)
Individuals reach sexual maturity between 2 and 4 years in age, depending on their geographic location. Males often mature between 2 and 3 years in age, while females mature between 3 and 4 years in age. Females produce multiple clutches of eggs during each spawning period and produce offspring over multiple years. Yellow bass spawn in the spring (late April to early June) and are stimulated by a rise in water temperature. The spawn occurs at water temperatures from 14.5°C to 26°C. Females do not release all of their eggs in a single spawning, and each spawning is fertilized by multiple males. (Burnham, 1910; Carlander, 1997; Pfleiger, 1997)
Yellow bass breed once yearly between late April and early June in tributary streams or lakes, over gravel or rock reefs. Females lay on their right side and eject eggs toward the male, who fertilizes them as they are released. The male stays upright during this event. Eggs are deposited on gravelly bottoms in waters that are 0.6 to 0.9 meters deep. Information on the number and size of offspring at birth is unavailable. Hybrids have been documented between female striped bass (Morone saxatilis) and male yellow bass. These hybrids are commonly known as paradise bass. (Bosworth, et al., 1998; Carlander, 1997; Hassan-Williams and Bonner, 2007; Pfleiger, 1997)
Eggs are slightly adhesive, allowing them to stick to structures in the environment, such as aquatic plants. The eggs receive no care once fertilized. (Carlander, 1997; Hassan-Williams and Bonner, 2007; "Morone mississippiensis", 2011)
The maximum known age of yellow bass is 7 years in the wild, though the maximum age attainable in captivity is unknown. Limiting factors and mortality rates are unknown. (Froese, 2010)
Yellow bass form schools to feed at midwater or near the surface. Individuals commonly migrate into tributary streams in order to spawn, though they normally occur in quiet pools and backwaters of small to large rivers, lakes, and reservoirs. They are crepuscular in nature, feeding at dusk and dawn. (Hassan-Williams and Bonner, 2007; Lee, et al., 1980)
No specific information about the home range of yellow bass is known. A related species (Morone chrysops) has been documented to travel large distances. Yellow bass also show local migration when they move into tributary streams in April and May to spawn. (Lee, et al., 1980; Morgan, 2006)
Species in the genus Morone are able to perceive their environment through vision, hearing, chemoreception, and detection of vibrations with the lateral line system. Yellow bass are able to use these sensory systems to sense their environment and interact with conspecifics.
Yellow bass are primarily invertivores/carnivores that feed mid-water or near the surface. Young individuals feed primarily on small crustaceans and insects, though the diet of adults includes fish, including smaller individuals of their own species. The importance of aquatic insects in their diet may increase as individuals grow, but zooplankton make up a majority of their diet in some populations. This species has a well-defined feeding pattern, feeding shortly after dark and again at daylight. (Collier, 1959; Darnell, 1961; Goldstein and Simon, 1999; Hassan-Williams and Bonner, 2007; Kraus, 1963; Van Den Avyle, et al., 1983; Welker, 1963)
No specific information is available regarding predators or anti-predator adaptations of yellow bass. Species in the same genus as yellow bass, such as white bass (Morone chrysops) and white perch (Morone americana) are preyed upon by species such as white bass, striped bass (Morone saxatilis), walleye (Sander vitreus), bluefish (Pomatomus saltatrix), weakfish (Cynoscion regalis), white perch, and bluegill (Lepomis macrochirus). Predation on white perch often occurs in their embryonic and larval stages, though is not uncommon during their juvenile stage, becoming less common in adults. It is likely that yellow bass have similar predators as other species in their genus due to their similarities in range and habitat. (Martens, 2006; Morgan, 2006)
Yellow bass play an important role in the ecosystem as a predator and prey animal and also host a number of different parasitic trematodes, nematodes, and cestodes, acanthocephalans, and gill lice. The trematodes that infect them are Onchocleidus interruptus, Allacanthochasmus artus, Allacanthochasmus varius, Azygia angusticauda, Clinostomum complanatum, Diplostomulum, Neochasmus umbellus, Posthodiplostomum minimum, and Tetracotyle. The nematodes infect them are Camallanus oxycephalus, Camallanus, Contracaecum spiculigerum, Spinitectus gracilis, and Leptorhynchoides thecatus. The cestodes that infect them are Proteocephalus ambloplitis, Proteocephalus, and Trypanorhyncha. They are also infected by acanthocephalans (Neoechinorhynchus cylindratus) and gill lice (Ergasilus arthrosis). (Hoffman, 1999)
Yellow bass are harvested for sport and food. They are not as sought after as other fish species such as white bass because of their smaller size. In the 1800's they were harvested commercially. It is conceivable that this species plays an important role in the regulation of insect and zooplankton populations. (Hassan-Williams and Bonner, 2007; "Yellow Bass (Morone mississippiensis)", 2009)
There are no known adverse effects of yellow bass on humans.
Yellow bass are listed as a species of special concern by Minnesota's List of Endangered, Threatened, and Special Concern Species. ("Morone mississippiensis", 2011)
Eric Walberg (author), Minnesota State University, Mankato, Jeremy Wright (author, editor), University of Michigan-Ann Arbor, Robert Sorensen (editor), Minnesota State University, Mankato, Gail McCormick (editor), Animal Diversity Web Staff, Catherine Kent (editor), Special Projects.
living in the Nearctic biogeographic province, the northern part of the New World. This includes Greenland, the Canadian Arctic islands, and all of the North American as far south as the highlands of central Mexico.
uses sound to communicate
having body symmetry such that the animal can be divided in one plane into two mirror-image halves. Animals with bilateral symmetry have dorsal and ventral sides, as well as anterior and posterior ends. Synapomorphy of the Bilateria.
an animal that mainly eats meat
uses smells or other chemicals to communicate
active at dawn and dusk
humans benefit economically by promoting tourism that focuses on the appreciation of natural areas or animals. Ecotourism implies that there are existing programs that profit from the appreciation of natural areas or animals.
animals which must use heat acquired from the environment and behavioral adaptations to regulate body temperature
fertilization takes place outside the female's body
union of egg and spermatozoan
A substance that provides both nutrients and energy to a living thing.
mainly lives in water that is not salty.
having a body temperature that fluctuates with that of the immediate environment; having no mechanism or a poorly developed mechanism for regulating internal body temperature.
Animals with indeterminate growth continue to grow throughout their lives.
An animal that eats mainly insects or spiders.
referring to animal species that have been transported to and established populations in regions outside of their natural range, usually through human action.
offspring are produced in more than one group (litters, clutches, etc.) and across multiple seasons (or other periods hospitable to reproduction). Iteroparous animals must, by definition, survive over multiple seasons (or periodic condition changes).
having the capacity to move from one place to another.
specialized for swimming
the area in which the animal is naturally found, the region in which it is endemic.
reproduction in which eggs are released by the female; development of offspring occurs outside the mother's body.
an animal that mainly eats fish
an animal that mainly eats plankton
Referring to a mating system in which a female mates with several males during one breeding season (compare polygynous).
breeding is confined to a particular season
remains in the same area
reproduction that includes combining the genetic contribution of two individuals, a male and a female
associates with others of its species; forms social groups.
uses touch to communicate
that region of the Earth between 23.5 degrees North and 60 degrees North (between the Tropic of Cancer and the Arctic Circle) and between 23.5 degrees South and 60 degrees South (between the Tropic of Capricorn and the Antarctic Circle).
movements of a hard surface that are produced by animals as signals to others
uses sight to communicate
animal constituent of plankton; mainly small crustaceans and fish larvae. (Compare to phytoplankton.)
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Texas Parks and Wildlife Department. 2009. "Yellow Bass (Morone mississippiensis)" (On-line). Texas Parks and Wildlife. Accessed July 17, 2011 at http://www.tpwd.state.tx.us/huntwild/wild/species/yellowbass/.
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Carlander, K. 1997. Handbook of Freshwater Fishery Biology. Ames, IA: Iowa State University Press.
Collier, J. 1959. Changes in fish populations and food habits of yellow bass in North Twin Lake, 1956-1958. Proceedings of the Iowa Academy of Science, 66: 518-522.
Darnell, R. 1961. Trophic Spectrum of an Estuarine Community, Based on Studies of Lake Pontchartrain, Louisiana. Ecology, 42: 553-568.
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Goldstein, R., T. Simon. 1999. Toward a united definition of guild structure for feeding ecology of North American freshwater fishes. Pp. 123-202 in T Simon, ed. Assessing the Sustainability and Biological Integrity of Water Resources Using Fish Communities. Boca Raton, FL: CRC Press.
Hassan-Williams, C., T. Bonner. 2007. "Morone mississippiensis" (On-line). Texas Freshwater Fishes. Accessed July 18, 2011 at http://www.bio.txstate.edu/~tbonner/txfishes/morone%20mississippiensis.htm.
Hoffman, G. 1999. Parasites of North American Freshwater Fishes. Ithaca, New York, USA: Cornell University Press.
Kraus, R. 1963. Food habits of the yellow bass, Roccus mississippiensis, Clear Lake, Iowa, summer 1962. Proceedings of the Iowa Academy of Science, 70: 209-215.
Lee, D., C. Gilbert, C. Hocutt, R. Jenkins, D. McAllister, J. Stauffer. 1980. Atlas of North American Freshwater Fishes. Raleigh, NC: North Carolina State Museum of Natural History.
Martens, A. 2006. "Morone americana" (On-line). Animal Diversity Web. Accessed July 17, 2011 at http://animaldiversity.ummz.umich.edu/site/accounts/information/Morone_americana.html.
Morgan, T. 2006. "Morone chrysops" (On-line). Animal Diversity Web. Accessed July 17, 2011 at http://animaldiversity.ummz.umich.edu/site/accounts/information/Morone_chrysops.html.
Page, L., B. Burr. 2011. Peterson Field Guide to Freshwater Fishes of North America North of Mexico, 2nd Edition. New York, NY: Houghton Mifflin Harcourt.
Pfleiger, W. 1997. The Fishes of Missouri. Jefferson City, MO: Missouri Department of Conservation.
Schoffman, R. 1958. Age and rate of growth of the yellow bass in Reelfoot Lake, Tennessee, for 1955 and 1957. Journal of the Tennessee Academy of Science, 33: 101-105.
Van Den Avyle, M., B. Higginbotham, B. James, F. Bulow. 1983. Habitat Preferences and Food Habits of Young-of-the-Year Striped Bass, White Bass, and Yellow Bass in Watts Bar Reservoir, Tennessee. North American Journal of Fisheries Management, 3: 163-170.
Welker, B. 1963. Summer food habits of yellow bass and black bullheads in Clear Lake. Proceedings of the Iowa Academy of Science, 69: 286-295.