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iainamalcolm.bsky.social
Hydrologist, fisheries scientist, mountain biker, hiker. Science lead at SG Marine Directorate. Hon. Prof. at University of Aberdeen. Instream hydroecology, salmonids, fish assessment, river temperature, water quality. Personal Account. All views my own.
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An improvement in freshwater biodiversity in England's rivers in the 1990s and early 2000s was linked to reduced zinc and copper pollution as coal use and heavy industry declined, say researchers. Read more about a new UKCEH-led study: www.ceh.ac.uk/press/biodiv... #rivers #WaterQuality 🧪 1/

submitted 8 days ago • 1 comment

It can be challenging to design and implement freshwater fish assessment methods at international scales due to differences in sampling methodologies and habitat characterisation. Here we consider opportunities to harmonise data to inform sea trout assessments doi.org/10.1002/aqc....

submitted 8 days ago • 0 comments

Juvenile chinook dispersal patterns identified through genetics "temperature was a dominant driver of dispersal, with individuals originating from warmer sections of the mainstem typically moving to cooler mainstem sections or tributaries" movementecologyjournal.biomedcentral.com/articles/10....

submitted 11 days ago • 0 comments

The Lancet, considered by some to be the world's leading medical journal (no, it is not a radical-Marxist-left-wing-rag), is living up to its well-deserved reputation and is not mincing words about the Musk administration's actions and their consequences: www.thelancet.com/journals/lan...

submitted 17 days ago • 7 comments

"...predicted dispersal patterns can carry significant uncertainties, arising from factors such as the accuracy of the driving hydrodynamics, PTM resolution, stochasticity of dispersal simulations, & parameterisation of the behavioural characteristics of the particles" doi.org/10.1016/j.ec...

submitted 24 days ago • 0 comments

Wild Atlantic #salmon populations are in decline across their native range. In Scotland, "spring" stocks are of particular concern. Understanding population processes & drivers of change can inform management action. Detailed long-term monitoring provides these insights tinyurl.com/Girnock-and-...

submitted 27 days ago • 0 comments

onlinelibrary.wiley.com/doi/10.1002/...

submitted 28 days ago • 0 comments

Important new paper on spatial & temporal variability of #introgression of farmed fish into wild Canadian #Atlantic #salmon rivers: "larger rivers with higher numbers of wild salmon consistently had lower proportions of hybrids than several of the smaller rivers" link.springer.com/article/10.1...

submitted 31 days ago • 0 comments

Characterising spatially and temporally heterogeneous groundwater and hyporheic exchange processes is extremely challenging. As a result these processes are often poorly represented, ignored or poorly parameterised in process based river temperature models. www.jstage.jst.go.jp/article/ras/...

submitted 32 days ago • 0 comments

Temperature, discharge and hydraulics can affect fish migration, spawning distribution and timing. Interesting study on the effects of climate change on suitability of upstream migration conditions for several diadromous species. cdnsciencepub.com/doi/10.1139/...

submitted 32 days ago • 0 comments

Forecasting river temperature is likely to become increasingly important in a warming climate, informing management decisions in activities as diverse as electricity generation and angling. Interesting new paper: www.mdpi.com/2306-5338/12...

submitted 32 days ago • 0 comments

New paper alert 🚨 Invading and range-expanding pink salmon inform management actions for marine species on the move, ICES Journal of Marine Science, 2025;, fsae199, doi.org/10.1093/ices...

submitted 43 days ago • 0 comments

Today was far too good to be at work! Cracking day out with excellent company. Somewhat baltic! #Scotland #Meagaidh @naturescot.bsky.social

submitted 47 days ago • 0 comments

New years hike up on the Ghlo range, #Perthshire #Scotland

submitted 55 days ago • 0 comments

"differences [in migration speed] are related to changes in local ocean conditions: years with lower on-shelf salinity, stronger on-shelf northwest currents, and stronger shelf-edge currents were associated with greater migration success" academic.oup.com/icesjms/adva...

submitted 60 days ago • 0 comments

www.sciencedirect.com/science/arti...

submitted 60 days ago • 0 comments

Characterising hyporheic fluxes is always challenging! link.springer.com/article/10.1...

submitted 66 days ago • 0 comments

🚨 Earlier this evening I wrapped up the source tarball for version 0.10.0 of gratia 📦 and submitted it to CRAN. Following automated check's, this new version of gratia is now available from CRAN 🥳 #RStats #mgcv #GAMs github.com/gavinsimpson...

submitted 69 days ago • 1 comment

Sharing this faculty position 🧪

submitted 69 days ago • 0 comments

www.mdpi.com/2410-3888/9/... "aquatic organisms present in the uppermost layer of the sea in the vicinity of wind turbines are potentially exposed to direct motion cues originating from moving turbine blades & also, when the sun elevation angle is greater than ca. 20◦, to dynamic shadowing cues" 🧪🌍

submitted 76 days ago • 1 comment

Surprisingly high levels of toxic aluminium across Nova Scotia & models for prediction based on more commonly measured hydrochemical parameters. setac.onlinelibrary.wiley.com/doi/10.1002/... 🧪

submitted 79 days ago • 2 comments

Tenure track group leader/scientist position in ecohydrological modelling of connected terrestrial-aquatic ecosystems at Leibniz Institute for Freshwater Ecology & Inland Fisheries Berlin Germany. Female scholars are PARTICULAR @leibnizigb.bsky.social Ask me if questions www.igb-berlin.de/en/jobs

submitted 84 days ago • 0 comments

Interesting new paper on water management, river temperature and Sockeye salmon under climate change in BC. link.springer.com/article/10.1...

submitted 81 days ago • 0 comments

As Atlantic salmon populations decline, everyone wants to ensure a sustainable future for the species. However, are we correctly identifying & managing population bottlenecks, & are the things we do for management genuinely making a positive difference 🧪 theconversation.com/atlantic-sal...

submitted 82 days ago • 1 comment

Hydropower impacts on riverine biodiversity. A paper recently out in Nature Reviews - Earth and Environment with @fengzhihe.bsky.social @scjaehnig.bsky.social jcsvenning.bsky.social and others! A good one-stop shop for understanding the impacts of hydropower dams. www.nature.com/articles/s43...

submitted 94 days ago • 1 comment

"The results show an increasing trend in oxygen demand, due to the development of biofilm in the reconstructed egg pockets & increased egg respiration rates... egg pockets showed positive ammonium net fluxes connected with the advancing developmental egg stage" 🧪 www.mdpi.com/2073-4441/16...

submitted 93 days ago • 0 comments

That's my "X" account deactivated. No going back now. Such a shame what's happened there. "Twitter" used to be a great platform to share and discover science and have informative and respectful conversations. I hope Bluesky continues to be a place for these types of interactions.

submitted 93 days ago • 1 comment

"Our temperature acclimation did not appear to significantly affect energetic and kinematic swimming efficiency, but acute exposure to high temperature did increase overall metabolic rate" onlinelibrary.wiley.com/doi/10.1111/...

submitted 93 days ago • 0 comments

I wrote (ranted) on experimental design as I was frustrated as an editor at how little guidance students were getting. I underestimated the interest in the issue: it has been downloaded 10,000+ times! Clearly it’s something we need to be talking about more. onlinelibrary.wiley.com/doi/full/10....

submitted 111 days ago • 13 comments

"... our findings suggest that increasing the release of hypolimnetic water from reservoirs during summer months can be a viable solution to mitigate the river temperature increase" www.sciencedirect.com/science/arti...

submitted 94 days ago • 1 comment

In Friday’s Nature Briefing, we note that some scientists are rebuilding community in a little place called Bluesky… 🦋 eepurl.com/i4LHFQ

submitted 95 days ago • 0 comments

Great to see Lawrence joining us here! 👀 bsky.app/profile/lawr...

submitted 96 days ago • 0 comments

The status of European eel remains critical. ICES advises that there should be zero catches of eel in all habitats in 2025. Further, that all non-fisheries related anthropogenic mortalities should be zero @icesmarine.bsky.social ICES advice available at ices-library.figshare.com/articles/rep...

submitted 96 days ago • 1 comment