Jaclyn Aubin

A line diagram illustrating how male and female beluga tails grow and change shape as they age. The female diagram shows the tail increasing in size but remaining the same shape. The male diagram below shows the tail increasing in size and becoming more convex. A scale bar shows that female tails reach a width of approximately. The figure is attributed to Vladykov (1944).

#belugafact: Did you know that tail shape can help differentiate male and female belugas?

As males mature, their tail become more curved and heart-shaped❤️, while female tails remain relatively straight at the bottom edge. Figure adapted from Vladykov (1944)

10.08.2025 19:11 — 👍 7    🔁 2    💬 0    📌 0

Calm greyish waters with a few white belugas backs visible at the surface and just below the surface. One white beluga tail is visible above the surface.

Counting beluga surface behaviours on the Churchill River to understand the impacts of noise!

Does underwater noise affect how often belugas show their tails when diving, a behaviour that may be linked to feeding? Excited to find out! @raincoast.org @uwindsor.bsky.social
Photo: Marie-Ana Mikus

09.08.2025 21:39 — 👍 10    🔁 3    💬 0    📌 0

Out on the @explore.org @polarbearsinternational.org beluga boat with Captain Tera yesterday!

Really challenging conditions but crystal-clear waters allowed for some amazing observations.

Thanks to Frontiers North Adventures, @raincoast.org and Oceans North! #BelugaResearch #adayinthefield

07.08.2025 02:36 — 👍 7    🔁 2    💬 0    📌 0

So thrilled to be back in Churchill, learning about beluga vocal and social behaviour. Marie-Ana and I are here for the first field season of my postdoc project in collaboration with @raincoast.org, Frontiers North Adventures, Oceans North, @uwindsor.bsky.social, and @dmennill.bsky.social

02.08.2025 23:25 — 👍 20    🔁 3    💬 1    📌 1

Ground nest with four eggs, hidden under blueberry bush.

The Savannah Sparrows are officially nesting on Kent Island! Our team found the first nest yesterday with 4 eggs 🥚. The happy couple is N.WB & B.RN, returning birds from 2024. Check in as we find more! @dmennill.bsky.social @ryannorrissci.bsky.social @jaclynaubin.bsky.social @nelsyninor.bsky.social

23.05.2025 13:27 — 👍 7    🔁 2    💬 0    📌 1

Image of LO.N in the hand (handled and banded with permits). Photo y Natalie Emerick.

Image of spectrogram of LO.N's song, recorded by Natalie Emerick in May 2025.

Meet LO.N, a male Savannah Sparrow living on Kent Island, NB, Canada. We know he hatched ~11 mon. ago, on this very island. We know his parents. We know his song. We even know the exact male he learned his song from! Can't wait to learn more about LO.N as the season continues! #longtermdata #birds

02.05.2025 14:35 — 👍 26    🔁 6    💬 1    📌 0

Very pleased to announce that I have successfully defended my doctoral dissertation! Huge thanks to my supervisory committee, @dmennill.bsky.social, @marine-valeria.bsky.social, @lrendell.bsky.social, Robert Michaud, Christina Semeniuk, Nigel Hussey, and Aaron Fisk! @uwindsor.bsky.social

17.04.2025 19:02 — 👍 31    🔁 3    💬 0    📌 5

@dmennill.bsky.social @marine-valeria.bsky.social‬ @uwindsor.bsky.social @raincoast.org @wiley.com @marinemammalogy.bsky.social

Tremendous news! Our paper "Fly with care: belugas show evasive responses to low altitude drone flights" (doi.org/10.1111/mms....) was recently recognized as a top ten most-cited article in Marine Mammal Science for 2023. Thanks to everyone who made this work possible! #TopCitedArticle

19.03.2025 14:34 — 👍 9    🔁 4    💬 1    📌 1