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

Thanks to Corinne Lapierre for interviewing me for your article!
Read the link below if you want to learn more about my research at Gault Nature Reserve: 🐟

gault.mcgill.ca/en/news/deta...

#invasivespecies #research #goldfish #GaultNatureReserve #PhDCandidate #ecology

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

Blessed to find this beautiful electric blue Faxonius virilis while sampling the St. Lawrence for my doctoral work! This is a fairly rare phenotype for this native North American species!

#goldfish #invasivespecies #freshwaterbiology #ecology #burbankpond

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

You might recognize this familiar face - @emmaschubert.bsky.social, a current ExComm is running for secretary
Tu reconnaîtras peut-être ce visage familier – @emmaschubert.bsky.social, une membre actuelle du comité exécutif, se présente au poste de secrétaire

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.

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.

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!

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.

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 🐟

Join us Saturday, July 19, 2025, for a day of biodiversity fun on Île Perrot to #BlitzTheGap with iNaturalist! 🌿🐟 We’ll be targeting understudied aquatic species—plus there’ll be prizes, food, and great company.

We hope to see you there!

🌊 Want to join the AFS team? 🌊
We're diving into a new year and looking for fresh faces to join our exec team! 🐠

Open positions:
McGill:
🧑‍💼 President
👥 Vice President
💰 Co-Treasurers
📝 Secretary
Concordia:
🏫 Concordia Rep

Apply using this link:
docs.google.com/forms/d/e/1F...

Just read this really interesting recent study comparing the foraging ability of invasive common carp and goldfish (my current study species)! It shows increased foraging ability of common carp over goldfish at 18°C, but not at 26°C under climate change.

neobiota.pensoft.net/articles.php...

Follow our students for posts about invasive freshwater fish, crayfish & mussels:
(clockwise in photo below)
Victoria @vanmierlo.bsky.social
Kate @katest0rey.bsky.social
Brielle @briellecomartin.bsky.social
Emma @emmaschubert.bsky.social
Ty @tjcolvin.bsky.social
Ivana @ivanakomendic.bsky.social

Congratulations to my lab mate @ivanakomendic.bsky.social on passing her QE! 🍻🤍 #PhDcandidate

📢 Notez la date ! Le Symposium 2025 : Communiquer le Courant aura lieu le 25 mars.

🌊 Découvrez, apprenez et connectez-vous avec la communauté dynamique de recherche aquatique du Québec.

📅 Inscrivez-vous dès maintenant en utilisant le code QR ci-dessous !
#AFSQCS2025

linktr.ee/AFSQC

In light of this year's theme, we are asking McGill Biology students how they communicate science.

Regardez ce tik tok pour voir comment ils le font et inscrivez-vous à la conférence pour nous dire comment VOUS communiquez la science.

vm.tiktok.com/ZMkgFhK8W/

Introducing our new director Professor Anthony Ricciardi @ecoinvasions.bsky.social with a video and a message of some of his hopes for the future!

A globally invasive fish (actually a group of congeners) distributed through the pet trade and long established in North America continues to spread - and is becoming superabundant in various waterbodies on the continent. Its impacts have likely been underestimated. academic.oup.com/fisheries/ad...