PhD candidate at Université du Québec | Capelin migrations | Otolith chemistry | Fisheries ecology | Movement behaviour
Romaric Jac
Excited to share our first paper on capelin otolith chemistry in the Gulf of St. Lawrence. We reveal stable, region-specific signatures over time, a key first step toward tracking natal origins and migrations. Many exciting questions ahead!
Read here 👉 www.sciencedirect.com/science/arti...
📢 New IMR study on movement patterns of #BaskingSharks shows that sharks tagged above the #ArcticCircle in #Norway perform repeated large-scale movements to subtropical waters and actively use the water column across habitats.🧵 1/5
👉 doi.org/10.3354/meps...
@whoi.edu
@thembauk.bsky.social
Small pelagic fish experts have gathered in La Paz, Mexico, to talk all things herring, capelin, sardine, mackerel & more at the 3rd Small Pelagic Fish symposium-SPF2026!
We're proud to present some of the early-career scientists we have funded to be at SPF-2026👇
@fao.org @picesmarinesci.bsky.social
@romaricjac.bsky.social will explore what otolith chemistry can reveal about capelin migrations.
🗣️Big moment for me in my final PhD year! I’m excited to present all my results, connect with others working on cold-water small pelagic fish, exchange ideas, & discover new projects & innovative methods.
New research from @romaricjac.bsky.social et al show that deep-water cartilaginous fishes, along with some of their prey species, are expanding their ranges northward into Arctic regions, highlighting how climate change may reshape marine biodiversity and species distributions.
plos.io/4sYteQX
Climate-driven shifts aren't just happening at the surface.
Using 26 years of data, we show that deep-water sharks and chimaeras are moving northward into Arctic waters🦈 Their prey are moving too, suggesting that the entire deep-sea community is on the move.
Read it here👉 doi.org/10.1371/jour...
We’ve completed our second season with chimaera tagging! And we caught something very cool 👀🦈 Curious about what? Find out here www.bergentelemetry.com/post/trackin...
#SOSF_GhostTrack
#NFR_PUFFINS
Romaric Jac
New #OA paper in Ecological Informatics comparing automated methods for provenance assignment using chronological chemical records deposited into archival structures such as #otoliths, #lenses, #statoliths. Our focus was on #salmon but it has much broader application. doi.org/10.1016/j.ec...
My first PhD paper is published! We did a co-occurrence network analysis of tagged spiny dogfish in the fjords 🦈 Read it here: doi.org/10.1093/ices...
@bergentelemetry.bsky.social
#SqualusAcanthias
#Spurdog
Wohoo! Another two chimaera monstrosa tagged tonight 🤩 The coloration is beautiful! Thanks to @saveourseas.bsky.social for funding the #SOSF_GhostTrack project! We’re going out again tomorrow! @bergentelemetry.bsky.social
Antonia Klöcker
ICES - International Council for the Exploration of the Sea
ICES - International Council for the Exploration of the Sea
Video
When late November 2025 arrived, we headed out again to try to tag more chimaeras. Divers tend to spot chimaeras in the shallow bays during winter, often at 30 meters or less. We didn’t catch any indi...
In the Gulf of St. Lawrence (GSL, Canada), the population structure and dynamics of capelin (Mallotus villosus), an abundant small pelagic forage fish…
🦤🌐🧪
Year-long satellite tracking of basking sharks revealed ~14,000 km migrations spanning 30° latitude. This includes a transatlantic journey from Norway to the Caribbean highlighting the need for pan-latitudinal research. #FeatureArticle
bit.ly/meps15153
@cakloecker.bsky.social
Continental shelf and deep ocean ecosystems are increasingly exposed to anthropogenic pressures including commercial fishing and climate change related environmental stressors. Among the most…
