Jozef Nissimov
@jinoceanvir.bsky.social
Assistant Professor at the University of Waterloo. Head of the Environmental Virology and Ecology Research Group (ENVERG; www.enverg.ca). Into algae, viruses, environmental microbiology, oceanography. Views are my own.
Pinned
ENVERG
Our approach to research
www.enverg.ca
I am happy to announce the launch of my lab's website: www.enverg.ca After more than 5 years, I finally got the time to put something together. Its basic, but hopefully will grow over the upcoming months and years.
Another great social for our lab tonight at the #hockey. We didn't win but still...Lots to celebrate this year. From successful comprehensive examinations to publications and exciting ongoing projects. 2026 here we come!
November 22, 2025 at 4:23 AM
Another great social for our lab tonight at the #hockey. We didn't win but still...Lots to celebrate this year. From successful comprehensive examinations to publications and exciting ongoing projects. 2026 here we come!
I am happy to announce the launch of my lab's website: www.enverg.ca After more than 5 years, I finally got the time to put something together. Its basic, but hopefully will grow over the upcoming months and years.
ENVERG
Our approach to research
www.enverg.ca
October 28, 2025 at 4:16 PM
I am happy to announce the launch of my lab's website: www.enverg.ca After more than 5 years, I finally got the time to put something together. Its basic, but hopefully will grow over the upcoming months and years.
(1/9) Latest preprint from our lab at
@uwaterloo.ca conceived predominantly by our very talented #PhD #student Isaac Meza-Padilla:
www.biorxiv.org/content/10.1...
@uwaterloo.ca conceived predominantly by our very talented #PhD #student Isaac Meza-Padilla:
www.biorxiv.org/content/10.1...
October 3, 2025 at 2:37 PM
(1/9) Latest preprint from our lab at
@uwaterloo.ca conceived predominantly by our very talented #PhD #student Isaac Meza-Padilla:
www.biorxiv.org/content/10.1...
@uwaterloo.ca conceived predominantly by our very talented #PhD #student Isaac Meza-Padilla:
www.biorxiv.org/content/10.1...
Latest work from my lab at @uwaterloo.ca by PhD student Isaac Meza-Padilla on using #Alphafold for #proteome modelling in #cyanophages:
doi.org/10.1016/j.cs...
doi.org/10.1016/j.cs...
September 17, 2025 at 6:56 PM
Latest work from my lab at @uwaterloo.ca by PhD student Isaac Meza-Padilla on using #Alphafold for #proteome modelling in #cyanophages:
doi.org/10.1016/j.cs...
doi.org/10.1016/j.cs...
Reposted by Jozef Nissimov
Join the creators of @alltooclearfilm.bsky.social for a historic real-time dive to Superior Shoal, a towering underwater mountain in the heart of Lake Superior.
Explore the Freshwater Everest on Sunday, September 14 at 3 PM ET.
Learn more: inspiredplanet.ca/live
Explore the Freshwater Everest on Sunday, September 14 at 3 PM ET.
Learn more: inspiredplanet.ca/live
September 10, 2025 at 8:06 PM
Join the creators of @alltooclearfilm.bsky.social for a historic real-time dive to Superior Shoal, a towering underwater mountain in the heart of Lake Superior.
Explore the Freshwater Everest on Sunday, September 14 at 3 PM ET.
Learn more: inspiredplanet.ca/live
Explore the Freshwater Everest on Sunday, September 14 at 3 PM ET.
Learn more: inspiredplanet.ca/live
It was an honour meeting and talking to, and snorkeling with the pioneer marine biologist, oceanographer, aquanaut and National Geographic explorer Sylvia Earle at the @psaalgae.bsky.social meeting in #PuertoRico. An incredible ambassador for #Science and the #Ocean. A truly inspiring individual.
August 1, 2025 at 3:35 AM
It was an honour meeting and talking to, and snorkeling with the pioneer marine biologist, oceanographer, aquanaut and National Geographic explorer Sylvia Earle at the @psaalgae.bsky.social meeting in #PuertoRico. An incredible ambassador for #Science and the #Ocean. A truly inspiring individual.
Reposted by Jozef Nissimov
Join marine researchers @UBC (ubcoceans.ubc.ca). CERC in Ocean Ecological Modeling (research.ubc.ca/media/file/c...). $8M to work at the intersection of oceanography, fisheries, ecology, biodiversity, etc, in the context of environmental change, ecosystems, biogeochemistry & living marine resources.
July 8, 2025 at 5:52 PM
Join marine researchers @UBC (ubcoceans.ubc.ca). CERC in Ocean Ecological Modeling (research.ubc.ca/media/file/c...). $8M to work at the intersection of oceanography, fisheries, ecology, biodiversity, etc, in the context of environmental change, ecosystems, biogeochemistry & living marine resources.
Fantastic efforts from my @uwaterloo.ca graduate students at this year's Canadian Society for Microbiology meeting in #Montreal. What a great event and an amazing city!
June 21, 2025 at 4:42 AM
Fantastic efforts from my @uwaterloo.ca graduate students at this year's Canadian Society for Microbiology meeting in #Montreal. What a great event and an amazing city!
Reposted by Jozef Nissimov
Reminder: Nobel-prize winning PCR (1983), used in basically all genetic tech today, was only possible because of extremophile bacterium discovered in 1964 in Yellowstone funded by a small ~$80k NSF grant with no obvious application at the time. #science 🧪
www.richmondscientific.com/how-a-discov...
www.richmondscientific.com/how-a-discov...
How a discovery in Yellowstone National Park led to the development of PCR - Richmond Scientific
A discovery in Yellowstone National Park led to the development of PCR, the gold-standard COVID-19 tests used to fight the global pandemic.
www.richmondscientific.com
June 8, 2025 at 9:09 PM
Reminder: Nobel-prize winning PCR (1983), used in basically all genetic tech today, was only possible because of extremophile bacterium discovered in 1964 in Yellowstone funded by a small ~$80k NSF grant with no obvious application at the time. #science 🧪
www.richmondscientific.com/how-a-discov...
www.richmondscientific.com/how-a-discov...
Great to be on the #water again today for some #microbial sampling in lake #belwood. What a way to start the #summer.
June 4, 2025 at 1:01 AM
Great to be on the #water again today for some #microbial sampling in lake #belwood. What a way to start the #summer.
Reposted by Jozef Nissimov
Out in Science! Zakem et al. mechanistically modeled global marine prokaryotic functional diversity, grounded with field data. Shifts in community composition drive respiration and thus biological C storage. This facilitates C cycle projections in a warming ocean
www.science.org/doi/10.1126/...
www.science.org/doi/10.1126/...
Functional biogeography of marine microbial heterotrophs
Heterotrophic bacteria and archaea (“heteroprokaryotes”) drive global carbon cycling, but how to quantitatively organize their functional complexity remains unclear. We generated a global-scale unders...
www.science.org
May 22, 2025 at 10:34 PM
Out in Science! Zakem et al. mechanistically modeled global marine prokaryotic functional diversity, grounded with field data. Shifts in community composition drive respiration and thus biological C storage. This facilitates C cycle projections in a warming ocean
www.science.org/doi/10.1126/...
www.science.org/doi/10.1126/...
Congratulations to all our co-authors on publishing this great work, led by our own @uwaterloo.ca gradate student Delaney Nash.
rdcu.be/emvgP
rdcu.be/emvgP
May 20, 2025 at 2:38 PM
Congratulations to all our co-authors on publishing this great work, led by our own @uwaterloo.ca gradate student Delaney Nash.
rdcu.be/emvgP
rdcu.be/emvgP
Reposted by Jozef Nissimov
When viruses infect toxic algal blooms, they can trigger the release of high levels of harmful microcystin-LR, leaving clear water that may still pose risks to health and ecosystems. doi.org/g9h7s9
Clear waters, hidden toxins: Viruses that combat algal blooms may actually increase risks for people and ecosystems
New laboratory research shows that when viruses attack a species that forms toxic algal blooms, those thick, blue-green slicks that choke waterways and that threaten ecosystems, drinking water, and public health, what results might be even worse than before the infection.
phys.org
May 12, 2025 at 11:02 PM
When viruses infect toxic algal blooms, they can trigger the release of high levels of harmful microcystin-LR, leaving clear water that may still pose risks to health and ecosystems. doi.org/g9h7s9
Reposted by Jozef Nissimov
Many data sets held by NOAA are being "retired" in may, including datasets relevant to ocean sciences and climate. If you have need for these data, or are an archivist, it would be good to download this now. PLEASE SHARE WIDELY. www.nesdis.noaa.gov/about/docume...
Notice of Changes
Notices of changes are formal public announcements of planned services changes to applications and other products.
www.nesdis.noaa.gov
April 18, 2025 at 8:25 PM
Many data sets held by NOAA are being "retired" in may, including datasets relevant to ocean sciences and climate. If you have need for these data, or are an archivist, it would be good to download this now. PLEASE SHARE WIDELY. www.nesdis.noaa.gov/about/docume...
Reposted by Jozef Nissimov
What happens when you do a deep-dive on a classic technique that returns strange results? You might find the technique does not work - at least in your system. 🤔
Kudos to Robbie, Lena et al.
On mitomycin-c for inducing lysogens in a harmful cyanobacterial bloom.
journals.asm.org/doi/10.1128/...
Kudos to Robbie, Lena et al.
On mitomycin-c for inducing lysogens in a harmful cyanobacterial bloom.
journals.asm.org/doi/10.1128/...
Mitomycin C eliminates cyanobacterial transcription without detectable prophage induction in a Microcystis-dominated harmful algal bloom in Lake Erie | Microbiology Spectrum
Harmful algal blooms dominated by Microcystis spp. occur throughout the world’s freshwater ecosystems, leading to detrimental effects
on ecosystem services that are well documented. After decades of r...
journals.asm.org
April 9, 2025 at 10:20 PM
What happens when you do a deep-dive on a classic technique that returns strange results? You might find the technique does not work - at least in your system. 🤔
Kudos to Robbie, Lena et al.
On mitomycin-c for inducing lysogens in a harmful cyanobacterial bloom.
journals.asm.org/doi/10.1128/...
Kudos to Robbie, Lena et al.
On mitomycin-c for inducing lysogens in a harmful cyanobacterial bloom.
journals.asm.org/doi/10.1128/...
Had the privilege of teaching #marine #biology this year @uwaterloo.ca, the same subject I studied as a BSc student 2 decades ago @plymuni.bsky.social During the course I had wonderful recollections of my own #professors I had at the time and the diversity of subjects they passionately covered...
April 8, 2025 at 11:42 PM
Had the privilege of teaching #marine #biology this year @uwaterloo.ca, the same subject I studied as a BSc student 2 decades ago @plymuni.bsky.social During the course I had wonderful recollections of my own #professors I had at the time and the diversity of subjects they passionately covered...