Greg Dick
@greatlakesgreg.bsky.social
Director of the Cooperative Institute for Great Lakes Research & the Great Lakes Center for Freshwaters and Human Health; Professor, University of Michigan Department of Earth & Environmental Sciences and School for Environment and Sustainability
Pinned
Greg Dick
@greatlakesgreg.bsky.social
· Jun 27
Investing in Great Lakes Science is critical for safety and prosperity
Scientific research plays a crucial role in supporting the safety and prosperity of tens of millions of people who live, work, and recreate in the Lau…
www.sciencedirect.com
I joined together with @CIGLR scientists from across the Great Lakes basin to explain the critical value of Great Lakes research and how investing in it directly impacts our health, wealth, and well-being. www.sciencedirect.com/science/arti...
thank you Ohio Sea Grant for highlighting our NSF/NIH-funded Great Lakes Center for Freshwaters and Human Health. See, Ohio State and Michigan *can* work together! (But Go Blue this week) ohioseagrant.osu.edu/news/2025/st...
Addressing Harmful Algal Blooms with the Great Lakes Center for Fresh Waters and Human Health
12:00 pm, Sun November 23, 2025 – Learn about the Great Lakes Center for Fresh Waters and Human Health's efforts to better understand the risks from harmful algal blooms and effectively inform communi...
ohioseagrant.osu.edu
November 25, 2025 at 10:47 PM
thank you Ohio Sea Grant for highlighting our NSF/NIH-funded Great Lakes Center for Freshwaters and Human Health. See, Ohio State and Michigan *can* work together! (But Go Blue this week) ohioseagrant.osu.edu/news/2025/st...
Nice paper on the other bloom in Lake Erie: diatoms. 👏
aslopubs.onlinelibrary.wiley.com/doi/full/10....
aslopubs.onlinelibrary.wiley.com/doi/full/10....
Temperature and light drive physiological and transcriptional responses, modulating infection outcomes in a freshwater diatom–chytrid system
Stephanodiscus binderanus is a bloom-forming diatom abundant in winter and persisting into spring in the Laurentian Great Lakes. Climate change impacts these blooms by altering ice cover, turbidity, ...
aslopubs.onlinelibrary.wiley.com
November 25, 2025 at 12:50 AM
Nice paper on the other bloom in Lake Erie: diatoms. 👏
aslopubs.onlinelibrary.wiley.com/doi/full/10....
aslopubs.onlinelibrary.wiley.com/doi/full/10....
Reposted by Greg Dick
If I could live my life over again, I'd be much more involved in historical research. This kind of stuff fascinates me now. #GreatLakes
www.nytimes.com/2025...
www.nytimes.com/2025...
At the Great Lakes, Unearthing the Submerged History
Tamara Thomsen, a maritime archaeologist and diving instructor, has helped uncover more than 100 shipwrecks across the region.
www.nytimes.com
November 24, 2025 at 11:01 PM
If I could live my life over again, I'd be much more involved in historical research. This kind of stuff fascinates me now. #GreatLakes
www.nytimes.com/2025...
www.nytimes.com/2025...
Reposted by Greg Dick
The School of Marine Science & Policy at the University of Delaware is hiring! We are looking for a talented Coastal Physical Oceanographer to join us.
More information is available here, and don't hesitate to reach out if you have any questions.
careers.udel.edu/en-us/job/50...
More information is available here, and don't hesitate to reach out if you have any questions.
careers.udel.edu/en-us/job/50...
November 24, 2025 at 6:32 PM
The School of Marine Science & Policy at the University of Delaware is hiring! We are looking for a talented Coastal Physical Oceanographer to join us.
More information is available here, and don't hesitate to reach out if you have any questions.
careers.udel.edu/en-us/job/50...
More information is available here, and don't hesitate to reach out if you have any questions.
careers.udel.edu/en-us/job/50...
What are harmful algal blooms? How do they affect our health? How should I report an exposure? Where can health care providers get more information on what to do? Our Great Lakes Center for Freshwaters and Human Health (NSF/NIH) provides answers with these two short informational videos 👇
November 24, 2025 at 9:05 PM
What are harmful algal blooms? How do they affect our health? How should I report an exposure? Where can health care providers get more information on what to do? Our Great Lakes Center for Freshwaters and Human Health (NSF/NIH) provides answers with these two short informational videos 👇
Reposted by Greg Dick
Before farms and suburbs, the Great Black Swamp thrived. Restoring it could help curb Lake Erie’s harmful algal blooms today.
www.greatlakesnow.org/2025/11/the-...
www.greatlakesnow.org/2025/11/the-...
The history of taming the Great Black Swamp | Great Lakes Now
Before farms and suburbs, the Great Black Swamp thrived. Restoring it could help curb Lake Erie’s harmful algal blooms today.
www.greatlakesnow.org
November 24, 2025 at 1:41 AM
Before farms and suburbs, the Great Black Swamp thrived. Restoring it could help curb Lake Erie’s harmful algal blooms today.
www.greatlakesnow.org/2025/11/the-...
www.greatlakesnow.org/2025/11/the-...
Reposted by Greg Dick
Research globally and act locally. Nice to see @zepernickbn.bsky.social @utkmicrobiology.bsky.social getting attention for collaborations with GLCFWHH researchers to address a local algal bloom. Just published in Harmful Algae.
artsci.utk.edu/meads-quarry...
artsci.utk.edu/meads-quarry...
Mead’s Quarry Research Reveals Toxic Algae Drivers - College of Arts and Sciences
UT research into a pink algae bloom that closed the popular swimming area at Ijams Nature Center in 2024 is providing insight into how the organisms thrive. Researchers from the University of Tenness...
artsci.utk.edu
November 22, 2025 at 12:55 PM
Research globally and act locally. Nice to see @zepernickbn.bsky.social @utkmicrobiology.bsky.social getting attention for collaborations with GLCFWHH researchers to address a local algal bloom. Just published in Harmful Algae.
artsci.utk.edu/meads-quarry...
artsci.utk.edu/meads-quarry...
Reposted by Greg Dick
Both countries have harmonized regs for ships entering the seaway, mandating saltwater flushing of ballast tanks. Lakers (domestic ships) are exempt. But they move organisms between ports in the Great Lakes. Canada requires them to install systems to treat ballast water. www.wpr.org/news/conflic...
Tensions mount over conflicting ballast water regulations on the Great Lakes
American shippers are at odds with the Canadian government over its regulations that require all Great Lakes vessels or “lakers” to install systems to treat their ballast water by 2030.
www.wpr.org
November 22, 2025 at 5:13 PM
Both countries have harmonized regs for ships entering the seaway, mandating saltwater flushing of ballast tanks. Lakers (domestic ships) are exempt. But they move organisms between ports in the Great Lakes. Canada requires them to install systems to treat ballast water. www.wpr.org/news/conflic...
winter measurements of temperature throughout the water column of Lake Ontario suggest it "appears to be a warm monomictic lake, rather than having a dimictic mixing pattern as previously described—there is no sustained ice cover or inverse stratification that inhibits vertical mixing in winter."
Unique thermal mixing patterns in Lake Ontario revealed by novel year‐round observations of thermal stratification
Year-round records of thermal stratification in the Great Lakes are rare, and there are few observations of thermal stratification during winter. In this paper, we analyze temperature data from 13 te...
aslopubs.onlinelibrary.wiley.com
November 22, 2025 at 8:36 PM
winter measurements of temperature throughout the water column of Lake Ontario suggest it "appears to be a warm monomictic lake, rather than having a dimictic mixing pattern as previously described—there is no sustained ice cover or inverse stratification that inhibits vertical mixing in winter."
Reposted by Greg Dick
Some of the #GreatLakes most damaging invasive species - like zebra mussels + round gobies - were introduced via ballast water. However, ballast water management systems on ships have been shown to reduce the abundance of living organisms in ballast water by more than 98% www.wpr.org/news/conflic...
Tensions mount over conflicting ballast water regulations on the Great Lakes
American shippers are at odds with the Canadian government over its regulations that require all Great Lakes vessels or “lakers” to install systems to treat their ballast water by 2030.
www.wpr.org
November 21, 2025 at 2:58 PM
Some of the #GreatLakes most damaging invasive species - like zebra mussels + round gobies - were introduced via ballast water. However, ballast water management systems on ships have been shown to reduce the abundance of living organisms in ballast water by more than 98% www.wpr.org/news/conflic...
Reposted by Greg Dick
Another reminder: Biological invasions are at least as costly as earthquakes, floods & wildfires. Their prevention deserves similar precautionary investments as those applied to extreme natural hazards. #bioinvasions
www.sciencedirect.com/science/arti...
www.sciencedirect.com/science/arti...
Biological invasions are as costly as natural hazards
Natural hazards — such as storms, floods, and wildfires — can be disastrous phenomena and so can biological invasions, for which impacts are often irr…
www.sciencedirect.com
November 21, 2025 at 2:43 AM
Another reminder: Biological invasions are at least as costly as earthquakes, floods & wildfires. Their prevention deserves similar precautionary investments as those applied to extreme natural hazards. #bioinvasions
www.sciencedirect.com/science/arti...
www.sciencedirect.com/science/arti...
Reposted by Greg Dick
Excited to share our new review article on Viral Dark Matter led by PhD student @kosmopoulos.bsky.social. We talk about what is known and unknown in the world of viruses (specifically phage), and highlight future opportunities for research and biotechnology. pubs.acs.org/doi/10.1021/...
Viral Dark Matter: Illuminating Protein Function, Ecology, and Biotechnological Promises
Viruses are the most abundant biological entities on Earth and play central roles in shaping microbiomes and influencing ecosystem functions. Yet, most viral genes remain uncharacterized, comprising w...
pubs.acs.org
November 20, 2025 at 9:04 PM
Excited to share our new review article on Viral Dark Matter led by PhD student @kosmopoulos.bsky.social. We talk about what is known and unknown in the world of viruses (specifically phage), and highlight future opportunities for research and biotechnology. pubs.acs.org/doi/10.1021/...
Reposted by Greg Dick
"Every one of us is, in the cosmic perspective, precious. If a human disagrees with you, let him live. In a hundred billion galaxies, you will not find another."
-Carl Sagan, Cosmos
-Carl Sagan, Cosmos
November 17, 2025 at 1:44 PM
"Every one of us is, in the cosmic perspective, precious. If a human disagrees with you, let him live. In a hundred billion galaxies, you will not find another."
-Carl Sagan, Cosmos
-Carl Sagan, Cosmos
Reposted by Greg Dick
More detailed science showing that so much of the damage from future #climate changes come from #water.
If carbon emissions don't peak until 2080, daily extreme precipitation over land could increase by 37% by 2100.
www.science.org/content/arti...
If carbon emissions don't peak until 2080, daily extreme precipitation over land could increase by 37% by 2100.
www.science.org/content/arti...
High-resolution climate model forecasts a wet, turbulent future
With details as fine as short-term weather forecasts, model achieves newfound accuracy
www.science.org
November 18, 2025 at 4:02 PM
More detailed science showing that so much of the damage from future #climate changes come from #water.
If carbon emissions don't peak until 2080, daily extreme precipitation over land could increase by 37% by 2100.
www.science.org/content/arti...
If carbon emissions don't peak until 2080, daily extreme precipitation over land could increase by 37% by 2100.
www.science.org/content/arti...
Reposted by Greg Dick
UW-Madison is hiring a Professor of History who work in the history of science with a focus on water
For full consideration, all materials must be received no later than 11:59pm on December 31, 2025.
jobs.wisc.edu/jobs/profess...
For full consideration, all materials must be received no later than 11:59pm on December 31, 2025.
jobs.wisc.edu/jobs/profess...
Professor of History - Madison, Wisconsin, United States
Current Employees: If you are currently employed at any of the Universities of Wisconsin, log in to Workday to apply through the internal application process.Job Category:FacultyEmployment Type:Regula...
jobs.wisc.edu
November 18, 2025 at 5:29 PM
UW-Madison is hiring a Professor of History who work in the history of science with a focus on water
For full consideration, all materials must be received no later than 11:59pm on December 31, 2025.
jobs.wisc.edu/jobs/profess...
For full consideration, all materials must be received no later than 11:59pm on December 31, 2025.
jobs.wisc.edu/jobs/profess...
Reposted by Greg Dick
Diving through the purple sulfur bacteria layer of Fayetteville Green Lake with our ROV last month. This is the most intense density of PSB that I've seen in many years!
November 8, 2025 at 6:30 PM
Diving through the purple sulfur bacteria layer of Fayetteville Green Lake with our ROV last month. This is the most intense density of PSB that I've seen in many years!
Reposted by Greg Dick
Special section of Journal of Great Lakes Research on Connecting Waters in the #GreatLakes. Open Access: includes a brief historical review of past efforts to focus on these critical areas and Summary of the 15 manuscripts that compose the Section. 🧪
doi.org/10.1016/j.jg...
doi.org/10.1016/j.jg...
Redirecting
doi.org
November 16, 2025 at 1:20 PM
Special section of Journal of Great Lakes Research on Connecting Waters in the #GreatLakes. Open Access: includes a brief historical review of past efforts to focus on these critical areas and Summary of the 15 manuscripts that compose the Section. 🧪
doi.org/10.1016/j.jg...
doi.org/10.1016/j.jg...
Reposted by Greg Dick
Since the time I was a grad student it was apparent that context dependency posed a major challenge to predicting the ecological impacts of invasion. The St Lawrence River has been my outdoor laboratory for studying impacts of Ponto-Caspian species (zebra mussel, quagga mussel, round goby, etc). 1/🧵
December 15, 2024 at 7:06 PM
Since the time I was a grad student it was apparent that context dependency posed a major challenge to predicting the ecological impacts of invasion. The St Lawrence River has been my outdoor laboratory for studying impacts of Ponto-Caspian species (zebra mussel, quagga mussel, round goby, etc). 1/🧵
Reposted by Greg Dick
Heat, air pollution, disease, and crop loss linked to climate change are worsening and costing millions of lives around the world each year. Yet current efforts are rolling back protections from vehicles and power plant emissions.
theconversation.com/want-to-make...
#climatechange #publichealth
theconversation.com/want-to-make...
#climatechange #publichealth
November 13, 2025 at 3:41 AM
The #GreatLakes make their own weather! @CIGLR_UM Research Scientist Dr. Abby Hutson talks about lake effect snow and why it is likely to get worse with warming lake waters.
www.foxweather.com/watch/fmc-ws...
www.foxweather.com/watch/fmc-ws...
Several states seeing lake-effect snow lingering | Latest Weather Clips | FOX Weather
More than 1 foot of snow has been reported across six states with more still falling along parts of the Great Lakes. University of Michigan research scientist
www.foxweather.com
November 12, 2025 at 6:17 PM
The #GreatLakes make their own weather! @CIGLR_UM Research Scientist Dr. Abby Hutson talks about lake effect snow and why it is likely to get worse with warming lake waters.
www.foxweather.com/watch/fmc-ws...
www.foxweather.com/watch/fmc-ws...
I spoke to David Fair on Issues of the Environment about the impact of federal cuts and shutdown on the #GreatLakes www.wemu.org/show/issues-...
Issues of the Environment: Federal government shutdown impacting Great Lakes research in Ann Arbor
The federal administration has targeted environmental agencies and protection programs in its efforts to reshape the government. The Environmental Protection Agency has seen layoffs and firings and bu...
www.wemu.org
November 12, 2025 at 1:53 PM
I spoke to David Fair on Issues of the Environment about the impact of federal cuts and shutdown on the #GreatLakes www.wemu.org/show/issues-...
Reposted by Greg Dick
Climate change is a 'natural' process now occurring ~10 times faster than the average rate after an ice age. Extinction is 'natural' but is now occurring 1000X faster than in past eras (apart from mass extinctions). Biological invasion is now at rates 100000X prehistoric levels of spp colonisations.
November 12, 2025 at 12:50 AM
Climate change is a 'natural' process now occurring ~10 times faster than the average rate after an ice age. Extinction is 'natural' but is now occurring 1000X faster than in past eras (apart from mass extinctions). Biological invasion is now at rates 100000X prehistoric levels of spp colonisations.
Reposted by Greg Dick
What happens when an energetic postdoc (@zepernickbn.bsky.social) takes a class to a local quarry to learn to limnology? Science!! (and pets are protected). Nice work by Britt, team and colleagues from the Great Lakes Center for Fresh Waters & Human Health.
www.sciencedirect.com/science/arti...
www.sciencedirect.com/science/arti...
The ornithine-arginine cycle supported a toxic, metalimnic Planktothrix rubescens bloom
Planktothrix rubescens is distinct from other cyanobacterial harmful algal bloom (cHAB) genera: the crimson-red cHAB thrives in the cold, low-light, n…
www.sciencedirect.com
November 11, 2025 at 2:01 PM
What happens when an energetic postdoc (@zepernickbn.bsky.social) takes a class to a local quarry to learn to limnology? Science!! (and pets are protected). Nice work by Britt, team and colleagues from the Great Lakes Center for Fresh Waters & Human Health.
www.sciencedirect.com/science/arti...
www.sciencedirect.com/science/arti...
Reposted by Greg Dick
While the Edmund Fitzgerald is the most famous, the #GreatLakes are home to an estimated 6000 - 10,000 shipwrecks. Many wrecks occur in fall due to the "November Witch" winds caused by a clash of cold Canadian air from the north + warm Gulf air from the south www.discovermagazine.com/as-an-underw...
As an Underwater Graveyard, the Great Lakes Have Claimed Close to 10,000 Ships
Though called the Great Lakes, these massive bodies of water are actually inland seas, and can be just as unpredictable as the ocean.
www.discovermagazine.com
November 10, 2025 at 1:46 PM
While the Edmund Fitzgerald is the most famous, the #GreatLakes are home to an estimated 6000 - 10,000 shipwrecks. Many wrecks occur in fall due to the "November Witch" winds caused by a clash of cold Canadian air from the north + warm Gulf air from the south www.discovermagazine.com/as-an-underw...