Language English Laurentian Maple Forest Photo: Biodôme Photo: Biodôme OngletsDescriptionDistinguishing featuresThe creek chub is a short, rounded fish. Its dorsal fin has a very clear black spot on the first three rays. There are 6 to 12 well-developed nuptial tubercles on the head and dorsal face of the pectoral fins on males in spawning season. ReproductionThis fish spawns in the spring, when the temperature is close to 13ºC, in small quiet streams with gravel bottoms. DietCreek chubs are omnivorous. The young feed on plankton at first, along with cladocera and algae, and then on larvae and adult insects. Large males attack crayfish and small fishes. PredatorsThey are preyed upon by a number of aquatic birds, including cormorants, kingfishers and mergansers. They are often caught by humans, as well. HabitatThey live in eastern and central North America. Creek chubs prefer clear rivers and streams, but can sometimes be found in small lakes. Ecology, behaviourAt spawning time, the male digs a pit in which several females lay their eggs. After fertilization, the eggs are covered in stones and gravel. This species is often used as bait. French nameMulet à cornes Scientific nameSemolitus atromaculatusPhylumChordataClassOsteichthyes (bony fish)OrderCypriniformesFamilyCyprinidaeSizeAverage length: 10.2 cm; maximum length: 30.5 cmWeightMaximum: 3.4 kgLife spanAbout 7 yearsStatusProbably the most common minnow in streams and rivers of eastern North America.