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#Freshwater

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LM Little<p><a href="https://mastodon.social/tags/BigOil" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>BigOil</span></a> is grabbing up <a href="https://mastodon.social/tags/freshwater" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>freshwater</span></a> in broad daylight and it seems that the <a href="https://mastodon.social/tags/UCP" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>UCP</span></a> are just fine with that. <a href="https://www.keepersofthewater.ca/news/albertas-push-to-merge-major-river-basins-is-unacceptable-for-first-nations-and-mtis-settlements" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">keepersofthewater.ca/news/albe</span><span class="invisible">rtas-push-to-merge-major-river-basins-is-unacceptable-for-first-nations-and-mtis-settlements</span></a></p><p><a href="https://mastodon.social/tags/abpoli" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>abpoli</span></a> <a href="https://mastodon.social/tags/nwtpoli" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>nwtpoli</span></a> <a href="https://mastodon.social/tags/waterisLife" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>waterisLife</span></a></p>
Earthworm 🐌<p><span class="h-card" translate="no"><a href="https://scholar.social/@animalculum" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>animalculum</span></a></span> </p><p>Groundwater ecology was one of the topics I was strongly considering to specialize in...</p><p>It is just *so* awesome what happens in these dark and completely overlooked ecosystems below our feet!</p><p>And thanks for pointing out the functions of these creatures! :ecoanarchism_heart: </p><p>Here, a nice introductory book, for if someone wants to nerd deeper:</p><p>"Groundwater ecology and evolution: an introduction" by Florian Malard, Christian Griebler and Sylvie Rétaux</p><p><a href="https://www.sciencedirect.com/science/article/pii/B9780128191194000263?pes=vor&amp;utm_source=wiley&amp;getft_integrator=wiley" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">sciencedirect.com/science/arti</span><span class="invisible">cle/pii/B9780128191194000263?pes=vor&amp;utm_source=wiley&amp;getft_integrator=wiley</span></a></p><p><a href="https://kolektiva.social/tags/Groundwater" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Groundwater</span></a> <a href="https://kolektiva.social/tags/Freshwater" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Freshwater</span></a> <a href="https://kolektiva.social/tags/Ecology" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Ecology</span></a> <a href="https://kolektiva.social/tags/Aquifer" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Aquifer</span></a></p>
DoomsdaysCW<p><a href="https://kolektiva.social/tags/Okra" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Okra</span></a> and <a href="https://kolektiva.social/tags/Fenugreek" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Fenugreek</span></a> Extracts Safely Remove <a href="https://kolektiva.social/tags/Microplastics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Microplastics</span></a> From Water in New Texas Research </p><p>May 10, 2025</p><p>"The substances behind the slimy strings from okra and the gel from fenugreek seeds could trap microplastics better than a commonly used synthetic polymer.</p><p>"Texas researchers proposed in 2022 using these sticky <a href="https://kolektiva.social/tags/NaturalPolymers" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>NaturalPolymers</span></a> to clean up water. Now, they’ve found that okra and/or fenugreek extracts attracted and removed up to 90% of microplastics from <a href="https://kolektiva.social/tags/ocean" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ocean</span></a> water, <a href="https://kolektiva.social/tags/freshwater" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>freshwater</span></a>, and <a href="https://kolektiva.social/tags/groundwater" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>groundwater</span></a>.</p><p>"With funding from the U.S. Department of Energy, Rajani Srinivasan and colleagues at Tarleton State University found that the plant-based polymers from okra, fenugreek, and <a href="https://kolektiva.social/tags/tamarind" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>tamarind</span></a> stick to microplastics, clumping together and sinking for easy separation from water.</p><p>"In this next stage of the research, they have optimized the process for okra and fenugreek extracts and tested results in a variety of types of water.</p><p>"To extract the sticky plant polymers, the team soaked sliced okra pods and blended fenugreek seeds in separate containers of water overnight. Then, researchers removed the dissolved extracts from each solution and dried them into powders.</p><p>"Analyses published in the American Chemical Society journal showed that the powdered extracts contained <a href="https://kolektiva.social/tags/polysaccharides" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>polysaccharides</span></a>, which are natural polymers. Initial tests in pure water spiked with microplastics showed that:</p><p>- One gram of either powder in a quart (one liter) of water trapped microplastics the most effectively.<br>- Dried okra and fenugreek extracts removed 67% and 93%, respectively, of the plastic in an hour.<br>- A mixture of equal parts okra and fenugreek powder reached maximum removal efficiency (70%) within 30 minutes.<br>- The natural polymers performed significantly better than the synthetic, commercially available polyacrylamide polymer used in <a href="https://kolektiva.social/tags/wastewater" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>wastewater</span></a> treatment.</p><p>"Then the researchers tested the plant extracts on real microplastic-polluted water. They collected samples from waterbodies around Texas and brought them to the lab. The plant extract removal efficiency changed depending on the original water source.</p><p>"Okra worked best in ocean water (80%), fenugreek in groundwater (80-90%), and the 1:1 combination of okra and fenugreek in freshwater (77%).</p><p>"The researchers hypothesize that the natural polymers had different efficiencies because each water sample had different types, sizes and shapes of microplastics.</p><p>"Polyacrylamide, which is currently used to remove contaminants during wastewater treatment, has low toxicity, but its precursor <a href="https://kolektiva.social/tags/acrylamide" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>acrylamide</span></a> is considered <a href="https://kolektiva.social/tags/toxic" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>toxic</span></a>. Okra and fenugreek extracts could serve as <a href="https://kolektiva.social/tags/biodegradable" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>biodegradable</span></a> and <a href="https://kolektiva.social/tags/nontoxic" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>nontoxic</span></a> alternatives.</p><p>" 'Utilizing these plant-based extracts in water treatment will remove microplastics and other pollutants without introducing additional toxic substances to the treated water,' said Srinivasan in a media release, 'thus reducing long-term health risks to the population [and the environment].</p><p>"She had previously studied the use of food-grade plant extracts as non-toxic flocculants to remove textile-based pollutants from wastewater and thought, ‘Why not try microplastics?’"</p><p>Source:<br><a href="https://www.goodnewsnetwork.org/plant-based-filter-removes-up-to-99-9-of-microplastics-from-water/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">goodnewsnetwork.org/plant-base</span><span class="invisible">d-filter-removes-up-to-99-9-of-microplastics-from-water/</span></a></p><p><a href="https://kolektiva.social/tags/SolarPunkSunday" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SolarPunkSunday</span></a> <a href="https://kolektiva.social/tags/PlasticPollution" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>PlasticPollution</span></a> <a href="https://kolektiva.social/tags/Plastics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Plastics</span></a> <a href="https://kolektiva.social/tags/Pollution" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Pollution</span></a> <a href="https://kolektiva.social/tags/PollutionSolutions" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>PollutionSolutions</span></a> <a href="https://kolektiva.social/tags/WaterIsLife" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>WaterIsLife</span></a> <a href="https://kolektiva.social/tags/Remediation" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Remediation</span></a></p>
Plazi Species<p><a href="https://mastodon.green/tags/NewSpecies" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>NewSpecies</span></a>!<br>New freshwater crab from <a href="https://mastodon.green/tags/china" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>china</span></a> just pinched us:</p><p>Megapleonum wangjiani</p><p>Treatment: <a href="https://treatment.plazi.org/id/C80D0340-D964-5FCD-8913-422A01FB4647" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">treatment.plazi.org/id/C80D034</span><span class="invisible">0-D964-5FCD-8913-422A01FB4647</span></a><br>Publication: <a href="https://doi.org/10.3897/zookeys.1244.148112" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">doi.org/10.3897/zookeys.1244.1</span><span class="invisible">48112</span></a><br><a href="https://mastodon.green/tags/ZooKeys" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ZooKeys</span></a> <a href="https://mastodon.green/tags/MegapleonumWangjiani" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>MegapleonumWangjiani</span></a></p><p><a href="https://mastodon.green/tags/FAIRdata" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>FAIRdata</span></a><br><a href="https://mastodon.green/tags/science" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>science</span></a> <a href="https://mastodon.green/tags/OA" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>OA</span></a> <a href="https://mastodon.green/tags/openaccess" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>openaccess</span></a> <a href="https://mastodon.green/tags/biology" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>biology</span></a> <a href="https://mastodon.green/tags/taxonomy" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>taxonomy</span></a> <a href="https://mastodon.green/tags/ecology" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ecology</span></a> <a href="https://mastodon.green/tags/biodiversity" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>biodiversity</span></a> <a href="https://mastodon.green/tags/nature" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>nature</span></a> <a href="https://mastodon.green/tags/wildlife" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>wildlife</span></a> <a href="https://mastodon.green/tags/conservation" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>conservation</span></a> <a href="https://mastodon.green/tags/animals" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>animals</span></a> <a href="https://mastodon.green/tags/invertebrates" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>invertebrates</span></a> <a href="https://mastodon.green/tags/arthropods" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>arthropods</span></a> <a href="https://mastodon.green/tags/crustacea" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>crustacea</span></a> <a href="https://mastodon.green/tags/crab" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>crab</span></a> <a href="https://mastodon.green/tags/freshwater" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>freshwater</span></a></p>
Greenpeace Aotearoa<p>Chris Bishop wants to make it easier for big corporations to pollute water. We need your help to stop him!<br>Bishop's freshwater pollution plan will allow intensive dairy farms to expand and use more synthetic nitrogen fertiliser, making water quality worse.<br>Make a submission against the Government's proposed regulation changes now: <a href="https://greenpeace.nz/fresh-water" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">greenpeace.nz/fresh-water</span><span class="invisible"></span></a> <br><a href="https://mas.to/tags/nzpol" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>nzpol</span></a> <a href="https://mas.to/tags/freshwater" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>freshwater</span></a></p>
Kathy Jones (she/her) (Birds Canada) 🍁🇨🇦<p>Your lakes, Your views - take the 2025 survey from SafeQuiet.ca<br><a href="https://mstdn.ca/tags/Ontario" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Ontario</span></a> <a href="https://mstdn.ca/tags/Freshwater" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Freshwater</span></a> <a href="https://mstdn.ca/tags/Lakes" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Lakes</span></a> <br>You can find the survey at the top of the page at <a href="https://safequiet.ca/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="">safequiet.ca/</span><span class="invisible"></span></a><br><a href="https://mstdn.ca/tags/HaveYourSay" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>HaveYourSay</span></a></p>
HistoPol (#HP) 🏴 🇺🇸 🏴<p><span class="h-card" translate="no"><a href="https://mastodon.green/@gerrymcgovern" class="u-url mention" rel="nofollow noopener" target="_blank">@<span>gerrymcgovern</span></a></span> </p><p><a href="https://mastodon.social/tags/AI" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>AI</span></a> <a href="https://mastodon.social/tags/ClimateCrisis" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ClimateCrisis</span></a></p><p>*The Detrimental Effects of Data Centers' Rising <a href="https://mastodon.social/tags/WaterConsumption" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>WaterConsumption</span></a>*</p><p>(6/n)</p><p>...The devastating effects that occur, when <a href="https://mastodon.social/tags/Multinationals" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Multinationals</span></a> such as <a href="https://mastodon.social/tags/Nestl%C3%A9" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Nestlé</span></a> or <a href="https://mastodon.social/tags/Danone" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Danone</span></a> monopolize the <a href="https://mastodon.social/tags/FreshWater" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>FreshWater</span></a> supply, can be seen in many locations. 6)</p><p>👉In my view, <a href="https://mastodon.social/tags/DataCenter" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DataCenter</span></a> operators need to be obliged not only to purchase <a href="https://mastodon.social/tags/CarbonOffsetCredits" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>CarbonOffsetCredits</span></a>.<br>A similar program needs to be developed for the <a href="https://mastodon.social/tags/Conservation" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Conservation</span></a> of the world's dwindling <a href="https://mastodon.social/tags/FreshWater" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>FreshWater</span></a> resources,👈<br>As a starting...</p>
Plazi Species<p><a href="https://mastodon.green/tags/NewSpecies" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>NewSpecies</span></a>!<br>New cave fish from <a href="https://mastodon.green/tags/oman" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>oman</span></a> just swam in:</p><p>Garra cavernicola</p><p>Treatment: <a href="https://treatment.plazi.org/id/03BBC80B-FFE7-FFE5-FF55-FB8AFE75BDA5" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">treatment.plazi.org/id/03BBC80</span><span class="invisible">B-FFE7-FFE5-FF55-FB8AFE75BDA5</span></a><br>Publication: <a href="https://doi.org/10.11646/zootaxa.5601.2.7" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">doi.org/10.11646/zootaxa.5601.</span><span class="invisible">2.7</span></a><br><a href="https://mastodon.green/tags/Zootaxa" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Zootaxa</span></a> <a href="https://mastodon.green/tags/GarraCavernicola" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>GarraCavernicola</span></a></p><p><a href="https://mastodon.green/tags/FAIRdata" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>FAIRdata</span></a><br><a href="https://mastodon.green/tags/science" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>science</span></a> <a href="https://mastodon.green/tags/OA" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>OA</span></a> <a href="https://mastodon.green/tags/openaccess" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>openaccess</span></a> <a href="https://mastodon.green/tags/biology" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>biology</span></a> <a href="https://mastodon.green/tags/taxonomy" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>taxonomy</span></a> <a href="https://mastodon.green/tags/ecology" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ecology</span></a> <a href="https://mastodon.green/tags/biodiversity" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>biodiversity</span></a> <a href="https://mastodon.green/tags/nature" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>nature</span></a> <a href="https://mastodon.green/tags/wildlife" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>wildlife</span></a> <a href="https://mastodon.green/tags/conservation" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>conservation</span></a> <a href="https://mastodon.green/tags/animals" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>animals</span></a> <a href="https://mastodon.green/tags/fish" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>fish</span></a> <a href="https://mastodon.green/tags/TeamFish" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>TeamFish</span></a> <a href="https://mastodon.green/tags/fishfriday" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>fishfriday</span></a> <a href="https://mastodon.green/tags/ichthyology" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ichthyology</span></a> <a href="https://mastodon.green/tags/caves" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>caves</span></a> <a href="https://mastodon.green/tags/cavefish" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>cavefish</span></a> <a href="https://mastodon.green/tags/freshwater" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>freshwater</span></a></p>
Gregor Kalinkat<p>Trump upends historic Columbia River Basin agreement, bringing uncertainty to salmon recovery efforts </p><p><a href="https://www.opb.org/article/2025/06/12/trump-upends-columbia-river-basin-agreement/" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">opb.org/article/2025/06/12/tru</span><span class="invisible">mp-upends-columbia-river-basin-agreement/</span></a></p><p><a href="https://det.social/tags/trump" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>trump</span></a> vs <a href="https://det.social/tags/biodiversity" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>biodiversity</span></a> <br><a href="https://det.social/tags/freshwater" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>freshwater</span></a> <a href="https://det.social/tags/ecology" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>ecology</span></a></p>

"While some areas like Eastern Canada have seen net water gains, the overall national trend indicates a steady decline, averaging a loss of 11 millimeters of water per year. In total, #Canada has lost the equivalent of 1.6 times the volume of Lake Ontario in #freshwater contributing to approximately 8.5% of global sea-level rise during that period."

#earthobservation

gogeomatics.ca/satellite-earth

When the sea moves inland: A global climate wake-up call from #Bangladesh's Delta

As sea levels climb and #weather grows more extreme, coastal regions everywhere are facing a creeping threat: salt. #Salinization of #freshwater and #soils adversely affects 500 million people around the world, especially in low-lying #river #deltas.

The western parts of the delta, already more prone to tidal influence, showed the fastest increases in salinity. The data suggests that the combination of #SeaLevelRise, reduced freshwater flow, and increasingly frequent storm surges are all contributing to the inland movement and retention of saltwater.

Since about 2007, many parts of the delta have experienced stepwise increases in salinity, often linked to powerful storms like #Cyclone #Sidr. These changes can devastate crops, erode #FoodSecurity, and force communities to move. While the analysis focused primarily on environmental data, it underscores how salinity intrusion is increasingly a threat to livelihoods, public #health, and regional stability.

smartwatermagazine.com/news/un

#ClimateCrisis
#ExtremeWeathe
#WaterSupply

Applying environmental DNA metabarcoding to calculate an index of biotic
integrity for freshwater fish

biorxiv.org/content/10.1101/20

bioRxiv · Applying environmental DNA metabarcoding to calculate an index of biotic integrity for freshwater fishMulti-metric indices like the Index of Biotic Integrity (IBI) are important biomonitoring tools for Clean Water Act compliance in the United States (US) but have also been implemented worldwide across many taxonomic groups. Environmental DNA (eDNA) metabarcoding could complement IBIs by increasing detection sensitivity for rare taxa while also reducing monitoring costs. To date, no studies have examined the efficacy of using eDNA metabarcoding to calculate IBIs in the US. Here, we used eDNA metabarcoding to calculate a fish-based IBI for streams and rivers of the Tennessee River Basin in northern Alabama, US. We collected water samples from 50 stream and river sites across a gradient of land use intensity, extracted eDNA from these samples, and sequenced the eDNA using vertebrate-specific primers. We compared our eDNA-IBI to a previous fish-IBI implemented by the state of Alabama using conventional sampling, as well as predicted biological condition of these streams from the US Environmental Protection Agency (EPA) based on a benthic macroinvertebrate multi-metric index (BMMI). We found a highly significant, positive relationship between the eDNA-IBI and fish-IBI for the same streams but a weaker, non-significant positive relationship between the eDNA-IBI and BMMI. Notably, the former was recovered despite eDNA-IBI sampling being conducted nine years after the conventional fish sampling at slightly different locations, the fish-IBI having used greater sampling effort throughout the year (including spring and autumn rather than only summer sampling), and a lack of reference DNA sequences that prevented eDNA detection for some species detected by conventional fish sampling. Accordingly, our study provides a baseline for how an eDNA-IBI may work relative to multi-metric indices calculated from conventional sampling, which can be improved through future directions identified and discussed in our paper. ### Competing Interest Statement The authors have declared no competing interest. US Department of Agriculture (USDA) National Institute of Food and Agriculture (NIFA) Hatch Project, ILLU-875-976 University of Illinois Urbana-Champaign Graduate College Dissertation Travel Grant Harley J. van Cleave Research Award University of Illinois Urbana-Champaign Graduate College Dissertation Completion Fellowship Program in Ecology, Evolution, and Conservation Biology summer research stipend supported by USDA NIFA Hatch Project, ILLU-875-984

And the 2025 Canadian Lakes Loon Survey begins!

There are approximately 2 million lakes in Canada. Chances are, you can find a lake to enjoy while you monitor loons.
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Cette semaine débute l'Inventaire Canadian des Plongeons huards 2025 !
Avec 2 millions de lacs au Canada, vous pouvez trouver un lac à apprécier tout en surveillant les huards.

birdscanada.org/loons
#oiseaux #lacs #oiseaux #lacs #birds #lakes #watersheds #freshwater #volunteer