Tubenose goby (Proterorhinus semilinaris) eggs slowly growing over two weeks. The fry (or “goblets”) should hatch any day now! The father has been diligently nest guarding.

Sexual dimorphism in male (back) and female tubenose gobies! Collected from the upper St. Lawrence River.

Male tubenose goby (Proterorhinus semilunaris), with dark spawning coloration. Collected today from the upper St Lawrence River by Maddie Picard (@picard-m.bsky.social) and her field team.

The Ricciardians gather for our lab Christmas party. (Photo taken by @ecoinvasions.bsky.social) Note the secret hand sign. @tjcolvin.bsky.social @vanmierlo.bsky.social @ivanakomendic.bsky.social @emmaschubert.bsky.social @picard-m.bsky.social @briellecomartin.bsky.social @veronicagroves.bsky.social

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

Do you study the impacts of #InvasiveSpecies and plan on attending #SCAS_IAGLR2026? Consider submitting an abstract to our proposed session below ⬇️ ⬇️ ⬇️

New study from our lab: Feeding efficiency (trophic impact) of goldfish varies with combinations of thermal & salinity conditions typical of urban ponds in north temperate regions. Salinity enhances efficiency at temperatures below the thermal optimum of goldfish. link.springer.com/article/10.1...

Highlights from my first field season with the amazing Ricciardi Lab team @ricciardilab.bsky.social! It has been such a joy learning about this new system, and getting to know my study species!

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