Moxostoma lachneri
Catostomidae · freshwater water fish
2 minute read · Species guide
The greater jumprock (Moxostoma lachneri) is a riverine species of catostomid fish native to Georgia and Alabama in North America.
The world record for greater jumprock stands at 0.57 kg (1 lb 4 oz) and is tied between two fish, both taken from the Flint River in Georgia, USA in 2012.
Article text: Wikipedia contributors, Greater jumprock (source revision). Licensed under CC BY-SA 4.0. Retrieved 2026-10-11.
The FishTraits compilation records these diet categories for this species: algae or phytoplankton; detritus or unidentified plant material; invertebrates or larval fish. These are broad categories, not a claim that every individual consumes every example in a category.
Reported feeding positions include bottom feeding. The compilation combines published observations; diets can vary with age, locality, and available food.
Reported habitat associations include medium to large rivers.
The source records associations with gravel, cobble, bedrock. An association indicates reported use, rather than an exclusive requirement.
The compilation reports a representative maturity age of 4 years. Its maturity field summarizes mean, median, or modal estimates, usually for females; male estimates can be used when female data are unavailable. It is not a fixed age at which every fish first breeds.
Recorded spawning months are May, Jun for the source’s reporting region (AL). This is a regional calendar, not a range-wide schedule.
The reproductive-guild classification includes spawning on open substrates without guarding the brood.
FishTraits reports a maximum total length of 44 centimetres. Some entries use an estimated asymptotic length; this value should not be treated as a certified record catch.
Recorded longevity in the compilation is 10 years. Wild observations were preferred, but captive records were accepted where wild records were unavailable, and unspecified records were assumed wild. The value is not a guaranteed wild lifespan or an aquarium life expectancy.
Robins and Raney (1956); Page and Burr (1991); Mettee et al. (1996). The genus Moxostoma was revised by Smith (1992), and Scartomyzon, a subgenus of Moxostoma, was elevated to genus. However, Harris et al. 2002 suggest that Scartomyzon is not a distinct lineage and its species are within the Moxostoma lineage (Nelson et al., 2004).
Apalachicola basin, Georgia and Alabama (Page and Burr 1991).
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