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Emma Schubert

@emmaschubert.bsky.social

41 followers 42 following 21 posts

PhD Candidate at McGill University, Montreal studying the ecological impacts of goldfish invasions 🐟

Posts Replies Media

Emma Schubert @emmaschubert.bsky.social · 25/09/2026

Check out this huge round goby caught by @tjcolvin.bsky.social, @hanakal.bsky.social, and me in lac Saint-François last week for @tjcolvin.bsky.social’s PhD project. It measured a whopping 125 mm! #invasivespecies #roundgoby

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Emma Schubert @emmaschubert.bsky.social · 27/08/2026

Thank you to the Ecology Detection Dog working group for the incredible demonstration of dogs able to detect #invasivespecies ! Check out www.ecologydetectiondogwg.org

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Emma Schubert @emmaschubert.bsky.social · 27/08/2026

Always a pleasure to see @veronicagroves.bsky.social present research from her PhD at #ICAIS2026. She explored the thermal tolerance response of native species exposed to invasive #Nileperch predator odour in Uganda. @qubelfastofficial.bsky.social. #invasivespecies

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Emma Schubert @emmaschubert.bsky.social · 13/08/2026

A day of Prussian carp sampling, a prolific invader in Alberta’s Blood Indian Creek Reservoir. My sample was a small fraction of the number of individuals removed today. Thank you to the field team with the Government of Alberta and the Sam Livingston Fish Hatchery for all your incredible work.

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Emma Schubert @emmaschubert.bsky.social · 25/11/2025

We had a great time at the McGill BGSA Retreat at Gault Nature Reserve this past weekend! 🌲❄️ @picard-m.bsky.social @vanmierlo.bsky.social @biomcgill.bsky.social

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Emma Schubert @emmaschubert.bsky.social · 04/10/2025

A beautiful fall day at the Gault Open Doors event 2025 talking to the community about aquatic invasive species 🐟🌱 @picard-m.bsky.social #goldfish #invasivespecies #aquaticecology #tubenosegoby #roundgoby #gaultnaturereserve

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Emma Schubert @emmaschubert.bsky.social · 11/08/2025

Thanks to Alex Tran at Gault Nature Reserve for the awesome photos of myself and research assistant Édouard Paquette weighing and measuring our goldfish at the end of this summer’s experiment! #freshwaterecology #invasivespecies #PhD #research #goldfish

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Emma Schubert @emmaschubert.bsky.social · 12/07/2025

I use spectrophotometry to measure chlorophyll-a on tiles at the bottom of my goldfish mesocosms. The chlorophyll-a concentrations are used as a proxies for algal growth to better understand how goldfish invasions impact benthic algae. #freshwaterbiology #invasivespecies #goldfish #algae

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Emma Schubert @emmaschubert.bsky.social · 28/06/2025

Goldfish generate turbidity (cloudiness) by suspending sediment when they feed. This decreases sunlight penetration in the water and negatively impacts native macrophytes and visual predators. I use a turbidimeter to accurately determine the turbidity in my mesocosms from water samples.

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Emma Schubert @emmaschubert.bsky.social · 25/06/2025

I use this fluoroprobe to measure the concentrations of green algae, bluegreen algae, diatoms, and cryptophyta in each of my mescosms to see how goldfish impact the algal composition of a shallow pond ecosystem.

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Emma Schubert @emmaschubert.bsky.social · 24/06/2025

Each mesocosm in my goldfish experiment contains 0-6 goldfish. Notice the turbidity difference between a mesocosm with 6 fish and one with 0 fish below!

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Emma Schubert @emmaschubert.bsky.social · 24/06/2025

This is my experimental setup at Gault Nature Reserve in Mont-Sainte-Hilaire, QC. Each goldfish is measured before being added to one of the 36 experimental mesocosms. We record different parameters to measure the impacts of goldfish on these artificial ponds, including turbidity and algae growth.

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Emma Schubert @emmaschubert.bsky.social · 24/06/2025

This is Burbank Pond in Danville, QC, where we collected 106 goldfish for this summer's artificial pond experiment on goldfish impacts. Burbank Pond currently has a large invasive goldfish population 🐟

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