Harkness Laboratory of Fisheries Research @harknesslab.bsky.social · 2hClimate warming skeptics, how are you doing today? 010
Harkness Laboratory of Fisheries Research @harknesslab.bsky.social · 2hWell done Jacob & Nick. An important synthesis of stream sampling for fish species and biodiversity 000
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 26137
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 · 05/04/2025We're not attending ICFT. Bigger issues at hand. We've put a lot of effort over the years in fine-scale positioning arrays, so we were looking forward to attending. Oh well.... 010
Harkness Laboratory of Fisheries Research @harknesslab.bsky.social · 29/03/2025Later in the 1930s, Elton visited the station on Lk Opeongo. It likely reflected correspondence over the years between him and Dymond. 000
Harkness Laboratory of Fisheries Research @harknesslab.bsky.social · 29/03/2025Later in the 1930s, Charles Elton visited the park & Harkness... greeted by folks from Harkness at the train station in Pembroke, Ontario. Elton & Harkness Lab...now that's something. 7/7 000
Harkness Laboratory of Fisheries Research @harknesslab.bsky.social · 29/03/2025Elton's book, Dymond & MacDougall were pivotal in bringing a modern ecosystem view to Algonquin Park. X/4 100
Harkness Laboratory of Fisheries Research @harknesslab.bsky.social · 29/03/2025Frank MacDougall, superintendent of Algonquin Park at the time, worked closely with Dymond to bring a science element to new park directions. Elton's concepts of food chains, pyramids, and productivity were promoted by Dymond. X/3 100
Harkness Laboratory of Fisheries Research @harknesslab.bsky.social · 29/03/2025First review of Elton's Animal Ecology (I believe) was by JR Dymond in Canadian Field Naturalist. A glowing review by Dymond. Dymond was curator of ichthyology at Royal Ontario Museum, U of Toronto. He was also working closely with new leadership managing Algonquin Park... 2/x 100
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 · 14/02/2025Field station here. We've followed you for years. Your climate change summaries are truly an evidence-based contribution for everyone to see. Hang in there & we're hoping for the best for you. You mattered in this medium... 010