Relationships between egg size and maternal size, life history forms, and habitats of Greenlandic Arctic charr (Salvelinus alpinus) ...

Arctic charr (Salvelinus alpinus [L.] complex) has been widely used as a model system for studies in evolutionary ecology because of its diversity in feeding ecology, habitat use, life history forms, and associated morphologies observed in matured individuals. However, we still know relatively littl...

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Bibliographic Details
Main Authors: Takatsu, Kunio, Delarue, Coralie, Heller, Naomi, Saboret, Gregoire, Brodersen, Jakob
Format: Article in Journal/Newspaper
Language:English
Published: ETH Zurich 2023
Subjects:
Online Access:https://dx.doi.org/10.3929/ethz-b-000586116
http://hdl.handle.net/20.500.11850/586116
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Summary:Arctic charr (Salvelinus alpinus [L.] complex) has been widely used as a model system for studies in evolutionary ecology because of its diversity in feeding ecology, habitat use, life history forms, and associated morphologies observed in matured individuals. However, we still know relatively little about traits exhibited early in life of the species, although the trait diversity of matured individuals may largely be shaped during development. Egg size is a key determinant of various traits exhibited early in life. Therefore, describing egg size variation within- and between-individuals as well as the link between egg size and adult traits will be a useful step in understanding the early life trait diversity of Arctic charr. Here, using Greenlandic Arctic charr, which includes alternative life history forms (i.e. anadromous and resident) and spawning habitat use (i.e. lake and river spawner), we described egg size variation (i.e. clutch-mean egg diameter and withinclutch variation) and explored the link ... : Environmental Biology of Fishes, 106 (5) ...