Trophic Niche Partitioning Between Lake Whitefish and Cisco: Post-glacial Patterns and Response to Anthropogenic Cisco Introductions . Canadian Journal of Zoology. Just-IN doi.org/10.1139/cjz-...
Canadian Science Publishing
doi.org
Harkness Laboratory of Fisheries Research
@harknesslab.bsky.social
Harkness Laboratory of Fisheries Research. An Ontario Ministry of Natural Resources field station on Lake Opeongo, Algonquin Park. Beginning in May 1936. Posting: Mark Ridgway Harkness.ca
Trophic Niche Partitioning Between Lake Whitefish and Cisco: Post-glacial Patterns and Response to Anthropogenic Cisco Introductions . Canadian Journal of Zoology. Just-IN doi.org/10.1139/cjz-...
Canadian Science Publishing
doi.org
🧵1/6 New paper from #NearLab dropped! Wood et al. (2026) tackle a long-standing mystery: how did freshwater perches, walleyes, and darters (Percidae) end up on BOTH sides of the Atlantic? Spoiler: they may have swum there. 🐟🌊 #Ichthyology #Evolution #Systematics
🧵 1/11New paper alert! One of two out today from #NearLab Ever heard of the Holiday Darter? These beautiful freshwater fish are hiding a big biodiversity secret in the rivers of Georgia, Alabama, & Tennessee and new genomic data is revealing it. A thread 👇
🧵1/11 New paper alert! One of 2 out today from #NearLab. Tunas are basically the superheroes of the ocean — warm-blooded, massive, and blazing fast. But HOW did they get that way? A new study just cracked open 50+ million years of evolutionary history. Let's dive in. 🐟⬇️
Two hundred years of historical spawning and nursery data for ciscoes and whitefishes in the #GreatLakes. www.nature.com/articles/s41...
Two hundred years of historical spawning and nursery data for coregonine fishes in the Laurentian Great Lakes - Scientific Data
Scientific Data - Two hundred years of historical spawning and nursery data for coregonine fishes in the Laurentian Great Lakes
nature.com
Home of the Kawartha Flying Squirrel Project, which is starting its 25th year. Sound on.
⭐EDITOR'S CHOICE⭐ Brook trout thermal habitat selection in stratified lakes: diel patterns, body size, and the importance of thermal time 🌎 ✒️Stewart et al.🔗 https://ow.ly/tScz50YJYxk 📷 https://ow.ly/ynbo50YJYxi #OpenAccess #ThermalEcology #FishEcology #🌱
This is my favorite climate change chart. Japanese monks, aristocrats, and emperors kept meticulous records of cherry blossom festivals for 1,200 years and accidentally built the world's longest climate dataset.
We just published a review 🗞️😁: ‘The ecology of adaptive radiation’ revisited: A 25-year reflection Dolph Schluter’s book inspired the interest in adaptive radiation, and we wanted to revisit it. academic.oup.com/evolinnean/a... 1/5 🧵
Final year of tracking Smallmouth Bass in Lake Erie tributaries. I'm going to miss this spring paddle on Conneaut Creek! @glatos-fish.bsky.social
new paper out today! led by @thefentagon.bsky.social national-level diversity of Arctic charr in Scotland 🐟 🧬 genetic footprints of glacial lakes found in today's pops spanning central divide 👀 🐟 #openaccess paper in @biojlinnsoc.bsky.social @profcolinbean.bsky.social @ColinEAdams
The historical patterns that have shaped contemporary genetic differentiation across populations of Arctic charr in Scotland
Abstract. Glacial history is an important contributor to contemporary biogeographical patterns because it has resulted in population fragmentation and cons
academic.oup.com
Sticklebacks have taught us how evolution works in real time. The Canadian Journal of Zoology invites papers for a collection marking three decades of stickleback research. Deadline: May 31, 2026 🐟▶️ https://ow.ly/y0ic50YpIqu #Stickleback #Evolution #Zoology
The proofed version of our CJZ paper is now online! 🐟 We studied patterns of brook trout thermal habitat selection during peak summer temps in 3 Algonquin Provincial Park lakes 🏕️ With @tmiddel.bsky.social & @harknesslab.bsky.social @canjzoology.bsky.social dx.doi.org/10.1139/cjz-2025-0087
Canadian Science Publishing
dx.doi.org
Some lecture notes on spatial and temporal modelling, illustrated using R - darrenjw.github.io/spatio-tempo... - #rstats #rspatial #quarto
Spatial and temporal statistics
darrenjw.github.io
For Day 9 of #25DaysOfFishmas, we're heading back to Australia to meet perhaps the most evolutionarily isolated species on our list. This is Lepidogalaxias salamandroides, the salamanderfish, which is not only the only member of its family, nor order, but is the only member of its *superorder*!
Our latest.... among lakes & over a decade in a large lake. A stationary habitat model Some Like It Cold: A General Habitat Association Model for Smallmouth Bass in Stratified Lakes - Ridgway - 2026 - Ecology of Freshwater Fish - Wiley Online Library onlinelibrary.wiley.com/doi/10.1111/...
Some Like It Cold: A General Habitat Association Model for Smallmouth Bass in Stratified Lakes
Models describing associations between fish distribution and environmental or spatial gradients at the population level have the potential to be transferrable if model parameters are stationary among....
onlinelibrary.wiley.com
🌡️ Alternative behavioral responses can buffer animals from environmental stress, yet the trade-offs of habitat selection remain poorly understood. Using a bioenergetics framework, researchers show different energetic strategies for a cold-water fish ➡️ buff.ly/l1GIXBf
New in Arctic Science: Long-term vertebrate research and monitoring sites in Arctic Canada explores decades of wildlife studies across the North and the lasting legacy of these field stations. Read more ▶️ buff.ly/hluh47u #ArcticScience #WildlifeResearch #ArcticCanada
Wishing you calm seas @alltooclearfilm.bsky.social! In partnership with @harknesslab.bsky.social and @lakeheaduniversity.bsky.social, we will be sinking an autonomous up-looking echosounder that will ping 24/7 to help understand the diel behaviour of fish and zoop at Sup Shoal. Be sure to tune in!
Pre-dawn departure from Duluth - steaming for 24 hours to get to the Superior Shoal. @CTVLondon picked up the story, check it out: www.ctvnews.ca/london/artic... See the Superior Shoal for yourself on the LIVEstream this Sunday 3-5pm ET. www.youtube.com/live/oKB_iw8...
Aren't they lovely? Congratulations to my great colleague Bud Freeman, this is the culmination of over a decade of work! www.mapress.com/zt/article/v...
Two new species of Micropterus (Centrarchidae) endemic to Atlantic Slope river drainages in Georgia, South Carolina and North Carolina, U.S.A. | Zootaxa
mapress.com
1/ Who published the first freshwater food web? American ecologist Victor Shelford may have done so (see below) in his classic 1913 monograph "Animal communities in temperate America as illustrated in the Chicago region", a book that inspired Charles Elton (who cited it in Animal Ecology)...
Some great talks on fish metabolism, thermal tolerance, and bioenergetics by folks from @trentuniversity.bsky.social at this year’s #SEBconference in Antwerp, Belgium. @sebiology.bsky.social @erinmcstewart.bsky.social @jaydebon.bsky.social @chris-on-fish.bsky.social
Think La Niña years are “cool”? Not anymore. Even our coolest years today are hotter than the hottest El Niño years of the past. Climate change is flipping the script — fast. A huge thank you to @zacklabe.com for his amazing graphic!
La Niña Years—Our “Cool” Years—Are Now Warmer Than El Niño Years
Every year, Earth’s temperature changes a little. Sometimes it gets hotter, and sometimes cooler. Scientists track this closely to understand how our climate is changing. But it’s not just about clima...
eco-nana.com
Home is where the heat is (for brook trout that is) Intrigued? Then check out this latest #ConPhys in Action piece, explaining the importance of local conditions to 🐟 temperature tolerance, and therefore for #Conservation planning. Comments on Stewart et al (links in 🧵⬇️ )
A terrific afternoon for fish biology here at #SEBconference ❤️🐟 Great talks by @leeuwisrobin.bsky.social, Moa Metz, and @erinmcstewart.bsky.social about different ways that fish respond to climate warming!
Meta-analysis reveals that density-dependent growth, survival, and their trade-off vary systematically among habitats and taxa buff.ly/DgfgJYQ
And often at high densities, so important food web participants
Did you know there are around 78 sucker species, and all but 2 are found exclusively in North America? They are not "trash fish" but rather vitally important to freshwater ecosystems. Many have fascinating life histories. And, for anglers, they're great fun to pursue.
Second paper this week from #NearLab!
1/10 🚨🚨 New paper with @tjnear.bsky.social! Here, we revise the systematics of sturgeons using a phylogenetic approach! We confirm an Early Cretaceous origin for the sturgeon total clade and resurrect several genera for living species!
Elton's day. @ecoinvasions.bsky.social thanks for the reminder Interesting Harkness connection... 1/x