Two previously unknown profundal dwelling charr morphs of the genus Salvelinus from Lake Kronotskoe are described in this article. According to their lifestyle peculiarities, these morphs were named the “bigmouth charr” and “smallmouth charr.” The former group is near-bottom benthivorous, while the latter one inhabits the water column and occupies the omnivorous niche. Bigmouth and smallmouth charrs are distinguished from the rest of the sympatric charr morphs by their smaller size, shorter snout, larger eyes, as well as by several craniological traits and lower parasite abundance. Spawning of both morphs takes place directly in the profundal zone and lasts from late October to February. Additional studies are required to determine the systematic status of the new morphs.
Russian Journal of Marine Biology – Springer Journals
Published: Jul 2, 2017
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