AquaNISInformation system on aquatic non-indigenous and cryptogenic species |
Species | Micropterus salmoides [WoRMS] | |
Authority | (Lacepède, 1802) | |
Family | Centrarchidae | |
Order | Perciformes | |
Class | Actinopteri | |
Phylum | Chordata | |
Synonym (?) | ||
Sub-species level (?) | Not entered |
Native origin (?) | Not entered Comments: North America |
Life form / Life stage (?) |
References (not structured): Scott WB, Crossman EJ, 1973. Freshwater Fishes of Canada. Bulletin 184, NO. 184:966 pp. Comments: The species preferentially occupies the nearshore (littoral) area of lakes due to the abundance of aquatic vegetation and warm temperatures. |
Sociability / Life stage (?) |
References (not structured): Scott WB, Crossman EJ, 1973. Freshwater Fishes of Canada. Bulletin 184, NO. 184:966 pp. |
Reproductive frequency (?) | Iteroparous References (not structured): Scott WB, Crossman EJ, 1973. Freshwater Fishes of Canada. Bulletin 184, NO. 184:966 pp. |
Reproductive type (?) | Sexual References: Scott WB, Crossman EJ, 1973. Freshwater Fishes of Canada. Bulletin 184, NO. 184:966 pp. |
Developmental trait (?) | Spawning References: Scott WB, Crossman EJ, 1973. Freshwater Fishes of Canada. Bulletin 184, NO. 184:966 pp. Comments: Spawning occurs in late spring to mid-summer in Canada, when water temperatures reach 15.6 °C. Spawning sites consist of sand, gravel or marl substrates and are usually contained within protected waters (coves, bays of larger lakes) with ample aquatic vegetation. Males clear a 61-95 cm area that may include exposed roots of emergent vegetation. Nudging and nipping between male and female initiates spawning, which results in the female depositing between 2000 and 109,314 eggs that are 1.5-1.7 mm in diameter. Males aggressively guard the nest during egg development. Hatching takes 3-5 days in southern Ontario, which produced transparent fry about 3 mm long. A nest may produce between 751-11,457 fry, averaging 5000-7000 individuals. |
Characteristic feeding method / Life stage (?) |
References (not structured): Scott WB, Crossman EJ, 1973. Freshwater Fishes of Canada. Bulletin 184, NO. 184:966 pp. Comments: M. salmoides are a generalist carnivore, feeding mostly during the day and eating mainly nearshore organisms that occur frequently within freshwaters. Their diet consists mostly of invertebrates at young ages, but will be dominated by fishes as age increases. Cannibalism may occur, especially in age-0 individuals exhibiting high variability in growth rate |
Mobility / Life stage (?) |
References (not structured): Scott WB, Crossman EJ, 1973. Freshwater Fishes of Canada. Bulletin 184, NO. 184:966 pp. |
Salinity tolerance range (?) | Exact range: 0 - 12 References: Smithsonian Environmental Research Center. (n.d.). Apocorophium lacustre. Marine Invasions Research. Available at: https://invasions.si.edu/nemesis/species_summary/168160 (Accessed: 17 July 2024). Comments: It is a freshwater specie. Field records up to 32 PSU have been reported, but salinities above 12 PSU are lethal in long-term (90 day) laboratory experiments. In the laboratory, fish were stressed and stopped eating at 12 PSU. However, fish were caught in Mobile-Tensaw Delta even in times of elevated salinity (4–15 PSU). |
Habitat modifying ability potential (?) | Keystone species References: Hodgson, J. Y., Hodgson, J. R. 2000. Exploring optimal foraging by largemouth bass (Micropterus salmoides) from three experimental lakes. Internationale Vereinigung für theoretische und angewandte Limnologie: Verhandlungen, 27(4), pp. 1757-1762. Comments: Largemouth bass are a top predator and a keystone species. In the ecosystem, they exert top-down control of the food web. |
Toxicity / Life stage (?) | Not relevant |
Bioaccumulation association (?) | Anthropogenic chemical compounds References: Rodrigues, A. M., Antunes, P., Paulo, L., Pereira, M. E., Pinto de Andrade, L. 2018. Metal contaminants in largemouth bass (Micropterus salmoides, Lacépéde, 1802) from different origins. Int J Res Agr for, 1(5), pp. 8-14. |
Known human health impact? | Known References: Karouna-Renier, N. K., Snyder, R. A., Lange, T., Gibson, S., Allison, J. G., Wagner, M. E., Rao, K. R. 2011. Largemouth bass (Micropterus salmoides) and striped mullet (Mugil cephalus) as vectors of contaminants to human consumers in northwest Florida. Marine Environmental Research, 72(3), pp. 96-104. Comments: The fish is a potential source of environmental contaminants that have well known adverse effects on human health. |
Known economic impact? | Known References: Loppnow, G. L., Vascotto, K., Venturelli, P. A. 2013. Invasive smallmouth bass (Micropterus dolomieu): history, impacts, and control. Management of Biological Invasions, 4(3), 191. Comments: Largemouth Bass have been introduced worldwide, and is a highly prized sportfish wherever it is found. It is one of the most important gamefishes in North America, both within its native range, and in its introduced range. |
Known measurable environmental impact? | Known References: Smithsonian Environmental Research Center. (n.d.). Apocorophium lacustre. Marine Invasions Research. Available at: https://invasions.si.edu/nemesis/species_summary/168160 (Accessed: 17 July 2024). Comments: M. salmoides is one of the major predators in its native and introduced lakes, rivers, and estuaries. Because of the early date of its introduction, and its introduction with several other predatory and competitive fishes, it plays a large role in the decline or extinction of native species. |
Included in the Target Species list? | No References: HELCOM, 2009. Alien Species and Ballast Water [PDF]. Available at: (https://archive.iwlearn.net/helcom.fi/stc/files/shipping/Table_2_Alienspecies_%20lists_2009.pdf) |
Association with vessel vectors (?) | Unknown Comments: M. salmoides, is a facultative piscivorous fish that has been successfully introduced worldwide for the main purpose of sport fishing. |
Last update by | Sandra Gečaitė, 2024-07-17 |