#ichthyology — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #ichthyology, aggregated by home.social.
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Jordan's rule (Ecogeographic rules 🌍)
Jordan's rule is an ecogeographical rule that describes the inverse relationship between water temperature and meristic characteristics in various species of fish. The most commonly observed relationship is that fin ray, vertebrae, or scale numbers increase with decreasing temperature. The rule is named after David Starr Jordan, the father of American ichthyology....
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New museum find shows nature can’t stop inventing seahorses https://theconversation.com/new-museum-find-shows-nature-cant-stop-inventing-seahorses-288274 #ichthyology #science #STEM
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New museum find shows nature can’t stop inventing seahorses https://theconversation.com/new-museum-find-shows-nature-cant-stop-inventing-seahorses-288274 #ichthyology #science #STEM
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University of North Carolina: AI makes it easier to explore fish files. “[Chris] Bizon and his team are trying to develop an agent using a multimodal large language model — AI that can process multiple types of data like text, images, audio and video at once — to transcribe these handwritten notes and infer the latitude and longitude for where each specimen was discovered.”
https://rbfirehose.com/2026/07/25/university-of-north-carolina-ai-makes-it-easier-to-explore-fish-files/ -
University of North Carolina: AI makes it easier to explore fish files. “[Chris] Bizon and his team are trying to develop an agent using a multimodal large language model — AI that can process multiple types of data like text, images, audio and video at once — to transcribe these handwritten notes and infer the latitude and longitude for where each specimen was discovered.”
https://rbfirehose.com/2026/07/25/university-of-north-carolina-ai-makes-it-easier-to-explore-fish-files/ -
Jordan's rule (Ecogeographic rules 🌍)
Jordan's rule is an ecogeographical rule that describes the inverse relationship between water temperature and meristic characteristics in various species of fish. The most commonly observed relationship is that fin ray, vertebrae, or scale numbers increase with decreasing temperature. The rule is named after David Starr Jordan, the father of American ichthyology....
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The blind Mexican cavefish (Astyanax mexicanus) has adapted to perpetual darkness by losing its eyes and pigmentation, evolving novel neurobehavioral traits such as increased activity in the presence of light, which represents a complete behavioral reversal from its sighted surface relatives.
#EvolutionaryBiology #Neuroscience #Neurogenetics #Zoology #Ichthyology #sflorg
https://www.sflorg.com/2026/06/ebio06242602.html -
The blind Mexican cavefish (Astyanax mexicanus) has adapted to perpetual darkness by losing its eyes and pigmentation, evolving novel neurobehavioral traits such as increased activity in the presence of light, which represents a complete behavioral reversal from its sighted surface relatives.
#EvolutionaryBiology #Neuroscience #Neurogenetics #Zoology #Ichthyology #sflorg
https://www.sflorg.com/2026/06/ebio06242602.html -
Baltic Sea herring are subdivided into distinct genetic populations adapted to local variations in salinity and temperature. These distinct genetic clusters occasionally interbreed, demonstrating a high degree of previously unrecognized genetic diversity within the species.
#PopulationGenetics #Ichthyology #EvolutionaryBiology #MarineBiology #sflorg
https://www.sflorg.com/2026/06/gen06152601.html -
Baltic Sea herring are subdivided into distinct genetic populations adapted to local variations in salinity and temperature. These distinct genetic clusters occasionally interbreed, demonstrating a high degree of previously unrecognized genetic diversity within the species.
#PopulationGenetics #Ichthyology #EvolutionaryBiology #MarineBiology #sflorg
https://www.sflorg.com/2026/06/gen06152601.html -
Corollary discharge is a copy of a motor command the brain uses to predict and filter out sensory inputs generated by an animal's own actions, enabling the distinction between external signals and self-generated noise.
#Neuroscience #EvolutionaryBiology #Zoology #Ichthyology #sflorg
https://www.sflorg.com/2026/06/ns06142602.html -
Corollary discharge is a copy of a motor command the brain uses to predict and filter out sensory inputs generated by an animal's own actions, enabling the distinction between external signals and self-generated noise.
#Neuroscience #EvolutionaryBiology #Zoology #Ichthyology #sflorg
https://www.sflorg.com/2026/06/ns06142602.html -
Maryland Matters: ‘Super fun’: The tale of how a prehistoric shark became Maryland’s official state shark . “Two days earlier, in the final hours of Maryland’s legislative session, lawmakers passed a bill to make megalodon — the largest shark that ever lived — the state shark. It became official on Tuesday, when Gov. Wes Moore signed Senate Bill 35 into law, declaring in one line […]
https://rbfirehose.com/2026/05/16/super-fun-the-tale-of-how-a-prehistoric-shark-became-marylands-official-state-shark-maryland-matters/ -
Maryland Matters: ‘Super fun’: The tale of how a prehistoric shark became Maryland’s official state shark . “Two days earlier, in the final hours of Maryland’s legislative session, lawmakers passed a bill to make megalodon — the largest shark that ever lived — the state shark. It became official on Tuesday, when Gov. Wes Moore signed Senate Bill 35 into law, declaring in one line […]
https://rbfirehose.com/2026/05/16/super-fun-the-tale-of-how-a-prehistoric-shark-became-marylands-official-state-shark-maryland-matters/ -
Approximately 50 million years ago, the evolutionary adaptation allowing fish to bite and scrape food directly from hard surfaces triggered a rapid acceleration in species diversification across marine and freshwater ecosystems.
#EvolutionaryBiology #MarineBiology #Ichthyology #sflorg
https://www.sflorg.com/2026/04/ebio04282601.html -
Approximately 50 million years ago, the evolutionary adaptation allowing fish to bite and scrape food directly from hard surfaces triggered a rapid acceleration in species diversification across marine and freshwater ecosystems.
#EvolutionaryBiology #MarineBiology #Ichthyology #sflorg
https://www.sflorg.com/2026/04/ebio04282601.html -
Female mosquitofish (Gambusia hubbsi) adapted to specific environmental pressures exhibit severe aggression toward males from different habitats, creating a behavioral reproductive barrier that can drive the evolution of entirely new species.
#EvolutionaryBiology #Ecology #Ichthyology #sflorg
https://www.sflorg.com/2026/03/ebio03242601.html -
Female mosquitofish (Gambusia hubbsi) adapted to specific environmental pressures exhibit severe aggression toward males from different habitats, creating a behavioral reproductive barrier that can drive the evolution of entirely new species.
#EvolutionaryBiology #Ecology #Ichthyology #sflorg
https://www.sflorg.com/2026/03/ebio03242601.html -
A pioneering cellular-level analysis of the brown #trout immune system demonstrates that artificial hatchery rearing conditions induce significant, measurable changes in the gene activity of #fish immune cells.
#Ichthyology #Immunology #MolecularBiology #EvolutionaryBiology #VeterinaryMedicine #Ecology #sflorg
https://www.sflorg.com/2026/03/ich03192601.html -
A pioneering cellular-level analysis of the brown #trout immune system demonstrates that artificial hatchery rearing conditions induce significant, measurable changes in the gene activity of #fish immune cells.
#Ichthyology #Immunology #MolecularBiology #EvolutionaryBiology #VeterinaryMedicine #Ecology #sflorg
https://www.sflorg.com/2026/03/ich03192601.html -
When u decide to draw something cuz pretty, but it's low-key hard to draw since the prettiness comes from the details
#art #fish #ichthyology #discus #watercolor
Happy Valentine's! Here's some in-progress art :)