Reposted by Harkness Laboratory of Fisheries Researchtaber @kvetch.gay · 01/10/2026one reason Lake Superior is so much deeper than the other Great Lakes is that unlike the others, much of it is in an ancient rift valley — about a billion years ago the North America craton started splitting, but failed, leaving behind the Midcontinent Rift System, a deep intrusion in the Earth 65311
Reposted by Harkness Laboratory of Fisheries ResearchAnthony Ricciardi @ecoinvasions.bsky.social · 26/09/2026OTD in 1962, Silent Spring was published. “Nature has introduced great variety into the landscape, but man has displayed a passion for simplifying it. Thus he undoes the built-in checks and balances by which nature holds the species within bounds.” ― Rachel Carson, Silent Spring 26037
Reposted by Harkness Laboratory of Fisheries ResearchFredrik Jutfelt 🐠 @jutfelt.bsky.social · 19/09/2026A foundational paper on the effects of ocean acidification on fish behaviour is retracted! "neither the publisher nor the editor has confidence in the article, primarily because the data provided during the investigation were not consistent with the observation methods described in the article." 23311
Reposted by Harkness Laboratory of Fisheries ResearchMathew Wells @efdtoronto.bsky.social · 31/08/2026Snow was falling on the high Arctic lake where we deployed a thermistor chain to monitor winter dynamics 031
Reposted by Harkness Laboratory of Fisheries ResearchKristen Behrens, PhD @behrenskristen.bsky.social · 30/08/2026Schemed myself up a side project that allows me to flee my laptop and hang out with the cool kids at the museum! Ciscoes are a taxonomic nightmare and genetic work from the lab is raising questions about two species. So we go to the types! Pray we have luck extracting from formalin fixed tissues 🫣 1156
Reposted by Harkness Laboratory of Fisheries ResearchProfColinBean @profcolinbean.bsky.social · 02/08/2026Trophic 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-...doi.orgCanadian Science Publishing 032
Reposted by Harkness Laboratory of Fisheries ResearchTom Near @tjnear.bsky.social · 29/07/2026🧵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 13813
Reposted by Harkness Laboratory of Fisheries ResearchTom Near @tjnear.bsky.social · 08/07/2026🧵 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 👇 13110
Reposted by Harkness Laboratory of Fisheries ResearchTom Near @tjnear.bsky.social · 08/07/2026 🧵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. 🐟⬇️ 24422
Reposted by Harkness Laboratory of Fisheries ResearchMatt Herbert @matteherbert.bsky.social · 07/05/2026Two hundred years of historical spawning and nursery data for ciscoes and whitefishes in the #GreatLakes. www.nature.com/articles/s41...nature.comTwo hundred years of historical spawning and nursery data for coregonine fishes in the Laurentian Great Lakes - Scientific DataScientific Data - Two hundred years of historical spawning and nursery data for coregonine fishes in the Laurentian Great Lakes 0104
Reposted by Harkness Laboratory of Fisheries ResearchJeff Bowman @jeffcbowman.bsky.social · 18/04/2026Home of the Kawartha Flying Squirrel Project, which is starting its 25th year. Sound on. 0101
Reposted by Harkness Laboratory of Fisheries ResearchCanadian Journal of Zoology @canjzoology.bsky.social · 16/04/2026⭐EDITOR'S CHOICE⭐ Brook trout thermal habitat selection in stratified lakes: diel patterns, body size, and the importance of thermal time 🌎 ✒️Stewart et al.🔗 ow.ly/tScz50YJYxk 📷 ow.ly/ynbo50YJYxi #OpenAccess #ThermalEcology #FishEcology #🌱 053
Reposted by Harkness Laboratory of Fisheries ResearchJohn Bistline @bistline.bsky.social · 01/04/2026This 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. 168183456900
Reposted by Harkness Laboratory of Fisheries ResearchJosé Cerca @naturalselection.bsky.social · 30/03/2026We 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 🧵 38839
Reposted by Harkness Laboratory of Fisheries ResearchZak Slagle @zakslagle.bsky.social · 30/03/2026Final year of tracking Smallmouth Bass in Lake Erie tributaries. I'm going to miss this spring paddle on Conneaut Creek! @glatos-fish.bsky.social 021
Reposted by Harkness Laboratory of Fisheries ResearchKathryn R Elmer @profkathrynelmer.bsky.social · 14/03/2026new 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 @ColinEAdamsacademic.oup.comThe historical patterns that have shaped contemporary genetic differentiation across populations of Arctic charr in ScotlandAbstract. Glacial history is an important contributor to contemporary biogeographical patterns because it has resulted in population fragmentation and cons 1116
Reposted by Harkness Laboratory of Fisheries ResearchCanadian Journal of Zoology @canjzoology.bsky.social · 12/03/2026Sticklebacks 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 🐟▶️ ow.ly/y0ic50YpIqu #Stickleback #Evolution #Zoology 011
Reposted by Harkness Laboratory of Fisheries ResearchErin Stewart @erinmcstewart.bsky.social · 12/03/2026The 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-2025-0087dx.doi.orgCanadian Science Publishing 1136
Reposted by Harkness Laboratory of Fisheries ResearchDarren Wilkinson @darrenjw.bsky.social · 01/01/2026Some lecture notes on spatial and temporal modelling, illustrated using R - darrenjw.github.io/spatio-tempo... - #rstats #rspatial #quartodarrenjw.github.ioSpatial and temporal statistics 55017
Reposted by Harkness Laboratory of Fisheries ResearchHulloThere @jethroreading32.bsky.social · 09/12/2025For 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*! 2258
Harkness Laboratory of Fisheries Research @harknesslab.bsky.social · 07/12/2025Our 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/...onlinelibrary.wiley.comSome Like It Cold: A General Habitat Association Model for Smallmouth Bass in Stratified LakesModels 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.... 010
Reposted by Harkness Laboratory of Fisheries ResearchJournal of Animal Ecology @animalecology.bsky.social · 11/11/2025🌡️ 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 034
Reposted by Harkness Laboratory of Fisheries ResearchArctic Science Journal @arcticsciencej.bsky.social · 06/10/2025New 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 013
Reposted by Harkness Laboratory of Fisheries ResearchScott Milne (Milne Technologies) @milnetechnologies.ca · 10/09/2025Wishing 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! 062
Reposted by Harkness Laboratory of Fisheries ResearchJohn Wares @johnwares.bsky.social · 19/08/2025Aren'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...mapress.com Two new species of Micropterus (Centrarchidae) endemic to Atlantic Slope river drainages in Georgia, South Carolina and North Carolina, U.S.A. | Zootaxa 14218
Reposted by Harkness Laboratory of Fisheries ResearchAnthony Ricciardi @ecoinvasions.bsky.social · 15/08/20251/ 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)... 183
Reposted by Harkness Laboratory of Fisheries ResearchBradley E. Howell @bradhowelll.bsky.social · 10/07/2025Some 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 0145
Reposted by Harkness Laboratory of Fisheries ResearchEcoNana @eco-nana.bsky.social · 09/07/2025Think 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!eco-nana.comLa Niña Years—Our “Cool” Years—Are Now Warmer Than El Niño YearsEvery 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... 06938
Reposted by Harkness Laboratory of Fisheries ResearchConservation Physiology @conphysjournal.bsky.social · 09/04/2025Home 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 🧵⬇️ ) 172
Reposted by Harkness Laboratory of Fisheries ResearchBeth Hoots @whatahoot.bsky.social · 08/07/2025A 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! 153
Reposted by Harkness Laboratory of Fisheries ResearchCanadian Journal of Zoology @canjzoology.bsky.social · 06/05/2025Meta-analysis reveals that density-dependent growth, survival, and their trade-off vary systematically among habitats and taxa buff.ly/DgfgJYQ 012
Reposted by Harkness Laboratory of Fisheries ResearchAlgonquin Ice Out Bot @iceoutbot.bsky.social · 26/04/2025Current #IceOut conditions in Algonquin Park. Image courtesy of The Friends of Algonquin Park. 002
Harkness Laboratory of Fisheries Research @harknesslab.bsky.social · 25/04/2025And often at high densities, so important food web participants 051
Reposted by Harkness Laboratory of Fisheries ResearchTom Near @tjnear.bsky.social · 25/04/2025Second paper this week from #NearLab! 021
Harkness Laboratory of Fisheries Research @harknesslab.bsky.social · 29/03/2025Elton's day. @ecoinvasions.bsky.social thanks for the reminder Interesting Harkness connection... 1/x 100
Reposted by Harkness Laboratory of Fisheries ResearchAnthony Ricciardi @ecoinvasions.bsky.social · 28/03/2025Born on March 29, 125 years ago: One of the most influential ecologists of the 20th century and the father of animal ecology, who turned natural history into a science: Charles Sutherland Elton (1900-1991). A birthday thread… 🧵[1/8] 24219
Reposted by Harkness Laboratory of Fisheries ResearchBenjamin Hlina, PhD @benjaminhlina.bsky.social · 22/03/2025Trophic Ecologists - new pkg alert - {trps} (pronounced ‘tropes’): Bayesian Trophic Position Models using 'Stan'. Estimates trophic position using equations from Post (2002), Vander Zanden & Vadeboncoeur (2002), & Heuvel et al. (2024). benjaminhlina.github.io/trps/ #rstats #ecology #foodwebsbenjaminhlina.github.ioBayesian Trophic Position Models using stanBayesian trophic position models using stan by leveraging brms for stable isotope data. Trophic position models are derived by using equations from Post (2002) <doi:10.1890/0012-9658(2002)083[0703:USI... 02510
Reposted by Harkness Laboratory of Fisheries ResearchCanadian Science Publishing @cdnsciencepub.com · 20/03/2025How do habitat conditions, water flow, and #climatechange shape fish populations? A new CJFAS collection honours Dr. Boisclair’s research on these key topics ▶️ ow.ly/B4vl50UYTCf 📸 Eva Enders 033
Harkness Laboratory of Fisheries Research @harknesslab.bsky.social · 21/02/20253-2 in overtime Amazing game on ice; Perfect ... off ice 000
Harkness Laboratory of Fisheries Research @harknesslab.bsky.social · 14/02/2025Today at Harkness. Thanks Lucas.... 010
Harkness Laboratory of Fisheries Research @harknesslab.bsky.social · 08/02/2025Thanks, Louise, for highlighting this. Agree. Fieldwork brings authenticity - for the public, for ourselves, and for applications. Undergrads & grads from our field station are always in demand. 030
Reposted by Harkness Laboratory of Fisheries ResearchDr. Lauren Stachowiak @laurenstacho.bsky.social · 05/02/2025Shout out to @ucsandiego.bsky.social and @scrippsocean.bsky.social for keeping this going right now! keelingcurve.ucsd.edukeelingcurve.ucsd.eduThe Keeling CurveThe Keeling Curve is a daily record of global atmospheric carbon dioxide concentration maintained by Scripps Institution of Oceanography at UC San Diego. 15215
Reposted by Harkness Laboratory of Fisheries ResearchFisheries Conservation Foundation @fishconserve.bsky.social · 29/01/2025🙁 Removal of more than 250 endangered southern steelhead trout took place last Thursday at Topanga Creek in a rescue operation led by the California Department of Fish and Wildlife.buff.lyHundreds of endangered fish rescued from bodies of water damaged by L.A. firesHundreds of endangered fish were removed last week from bodies of water left damaged by the Palisades Fire. A removal of more than 250 endangered southern steelhead trout took place last Thursday a… 062
Reposted by Harkness Laboratory of Fisheries ResearchMatthew L. Miller @matthewlmiller.bsky.social · 24/01/2025There are as many as 7 species of redeye bass swimming southeast US streams. Redeye fly fishing is similar to small-stream trout: beautiful streams, surface action, small but striking fish. I've caught 5 redeye bass species & hope to return for Warrior & Cahaba bass this year. #flyfishing 2628
Reposted by Harkness Laboratory of Fisheries ResearchMarc Alessi @marc-alessi.bsky.social · 13/01/2025Never forget that Exxon built their own climate model in the 1970s that correctly predicted climate change from the burning of fossil fuels 9302112
Reposted by Harkness Laboratory of Fisheries Researchfreshwater fELA 🇨🇦 @not-klaatu.bsky.social · 10/01/2025The future is #catostomidae... firmly believe that if there's a sentinel species that can tell us about enironmental changes, this group of fishes is it. Widely distributed, rarely targeted by anglers (and therefore don't need to worry about fishing mortality), and, I mean, just look at that face 0112
Harkness Laboratory of Fisheries Research @harknesslab.bsky.social · 10/01/2025Yes. Agree. Catostomids are important in many aquatic ecosystems. Abundant and functionally unique. 050
Reposted by Harkness Laboratory of Fisheries ResearchTrent Centre for Communicating Conservation @trentconservation.bsky.social · 09/01/2025We're back in February for more conservation science! Join Dr. Mark Ridgway for the scoop on Algonquin Park lake fish. There's more going on beneath the waters than we thought! 0129
Reposted by Harkness Laboratory of Fisheries ResearchErin Stewart @erinmcstewart.bsky.social · 08/01/2025📣 Just published in @conphysjournal.bsky.social with @jacobbowman.bsky.social, Chris Wilson, and Graham Raby How much does upper thermal tolerance vary among wild populations of brook trout? What drives this variation? 🌡️ 🧵1/5 doi.org/10.1093/conp...doi.orgLocal conditions drive interpopulation variation in field-based critical thermal maximum of brook troutAbstract. Individual- and population-level responses to thermal change will be pivotal for species’ resilience and adaptive responses to climate change. Th 12611
Reposted by Harkness Laboratory of Fisheries Research7th International Conference on Fish Telemetry @icft2025.bsky.social · 06/01/2025A friendly reminder that abstracts for ICFT 2025 are due at the end of the month! See the conference website for details. We want to be able to provide a quick turn around of abstract acceptance before registration begins! 11710