Data from: Basic description and some notes on the evolution of seven sympatric morphs of Dolly Varden Salvelinus malma from the Lake Kronotskoe Basin

• Main Authors: Markevich, Grigorii, Esin, Evgeniy, Anisimova, Liudmila
• Format: Dataset
• Language: unknown
• Published: 2018
• Subjects: Functional morphology; Salvelinus malma; Holocene; Trophic Polymorphism; Varden; Kamchatka
• Online Access: https://zenodo.org/record/5001454; https://doi.org/10.5061/dryad.5jm7b

The paper examines the basic morphological and ecological features of Dolly Varden from Lake Kronotskoe (Russia, Kamchatka). Seven valid morphs different in head proportions, feeding, timing and place of spawning have been determined in this ecosystem. The basic morphometric characteristics clearly separate Lake Kronotskoe morphs from each other, as well as from its potential ancestor (Dolly Varden). According to CVA analysis, the most notable morphological characteristics determining the mouth position are: the length of a lower jaw and rostrum. Furthermore, five of seven morphs inhabit different depth zones of the lake and feed on different food resources. Our data suggest that reproductive isolation may be maintained by temporal/spatial isolation for two morphs with lacustrine spawning, and by spatial isolation only for the rest of the morphs with riverine spawning. The sympatric diversity of the Lake Kronotskoe charrs is exceptionally wide and there are no other examples for seven sympatric morphs of genus Salvelinus to coexist within a single ecosystem. This study puts forward a three-step hypothetical model of charr divergence in Lake Kronotskoe as a potential ground for future studies. LMM_schemeThis scheme (side view) was used for land-marks digitizing. Landmarks in the Tps-files are given according this order. Here also some addition land-marks that can be used for the linear measurements calculations i.e. fin length and width etc.landarks BBTps file for Bigmouth (B-) morphlandmarks_SSTps file for Smallmouth (S-) morphWW_landmarksTps file for White (W-) morphLL_landmarksTps file for Longhead (L-) morphNN1_landmarksTps file for Nosed1 (N1-) morph (side view)NN2_landmarksTps file for Nosed2 (N2-) morph (side view)NN3_landmarksTps file for Nosed3 (N3-) morph (side view)LLM_scheme_bottom viewThis scheme (bottom view) was used for land-marks digitizing. Landmarks in the Tps-files are given according this order (for NN morphs only).NN1_bottom_landmarksTps file for Nosed1 (N1-) morph (bottom ...