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Jonathan Wilson

@wilson-jm.bsky.social

Professor in Biology at Wilfrid Laurier University (Canada). My research interests are centered around #fish #physiology specifically ion and acid-base regulation. We also have an interesting line of research on the story of #stomach loss in fishes. 🐠🐟🦈🐡

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Jonathan Wilson@wilson-jm.bsky.social · last mo.

While modern amphibians start life in a larval stage, a new fossil study in Science suggests these tadpole-like stages were not present in earlier times. Learn more: scim.ag/4gQUQo1 share.google/zm3vANmdlyjw...

Direct development of stem tetrapods across the fin-to-limb transition

Modern amphibians are characterized by an aquatic larval stage that ends abruptly with a period of widespread tissue remodeling (metamorphosis) upon transition to terrestrial adulthood. A transient la...

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Zebrafish Rock!@zebrafishrock.bsky.social · 5mo ago

A. mexicanus are a promising model to study nutritional control of development as cavefish larvae yolks are larger & appear more yellow compared to surface fish suggesting differences in nutritional content. Reciprocal crosses show how maternally-provided nutrients impact development. #TeleostTalk 🧪

Fig. 6. The Mexican tetra, Astyanax mexicanus, as a model to study nutritional control of development. This species of small fish (~4–6 cm as adults) consists of cave-dwelling morphotypes (cavefish, A, C) and ancestral river-dwelling morphotypes (surface fish, B, D). Cavefish evolved from surface fish in perpetually dark caves and adapted to a nutrient poor diet of bat guano and material brought in by seasonal floods. The fish are easy to maintain in the laboratory and are interfertile. Cavefish larvae (C, 4 days post fertilization (dpf)) have more yolk and the yolk appears more yellow compared to surface fish (C, 4dpf) suggesting a difference in nutritional content. The yolk of F1 surface cave/hybrids produced from cavefish females (E) is more yellow compared to those produced from surface fish females (F). Comparing these reciprocal crosses will be useful for understanding how maternally provided nutrients in the yolk impact development. Scale bars ​= ​0.5mm. (A, B) Images provided by Nicholas Rohner, Stowers Institute for Medical Research. (C–D), Images reproduced with permission from (Riddle et al., 2020). Credit figure and text to Riddle and Hu (2021).
Jonathan Wilson@wilson-jm.bsky.social · 5mo ago

www.linkedin.com/posts/%F0%9D...

𝗜𝗻 𝗺𝗲𝗺𝗼𝗿𝗶𝗮𝗺 𝗠𝗮𝗿𝗸 𝗕𝗮𝘆𝗹𝗲𝘆 Associate Professor Mark Bayley died suddenly Saturday February 7, 2026, in his home. Mark left a pronounced personal mark on his surroundings. He was… | Biology - Aarhus Un...

𝗜𝗻 𝗺𝗲𝗺𝗼𝗿𝗶𝗮𝗺 𝗠𝗮𝗿𝗸 𝗕𝗮𝘆𝗹𝗲𝘆 Associate Professor Mark Bayley died suddenly Saturday February 7, 2026, in his home. Mark left a pronounced personal mark on his surroundings. He was very open-hearted in h...

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Jonathan Wilson@wilson-jm.bsky.social · last yr.

SEB 2025 Young Scientist Award Session Finalist in Antwerp. LEFT-RIGHT President Gudrun De Boeck, Garfield Kwan, Patrícia Ferreira, Chandler Tsang and Animal Chair Felix Mark. Three excellent talks!

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