Tessera

Warren Currie 🦠🦐

@drplanktonguy.bsky.social

Placeholder acct for Fedi bridging Research Scientist GreatLakes, Fisheries & Oceans Canada. Personal SciComm account. Repost does not imply agreement. 🇨🇦 🇺🇸 Collaborative Open Science Limnology Oceanography Plankton Zooplankton FoodWebs Modeling

191 Posts67 Follower 18 Folgt

Warren Currie 🦠🦐@drplanktonguy.bsky.social · 6h ago

Pleased to announce publication of our collaborative #GLEON data paper in Limnology and Oceanography Letters. The Zooplankton International Geospatial dataset has 🦐 zoop+ data on 311 lakes. Huge effort over 7 years from 143 authors at 101 institutions in 37 countries. 🎉 dx.doi.org/10.1002/lol2...

The Zooplankton International Geospatial dataset: A global repository of spatiotemporal freshwater zooplankton community composition data from lakes and reservoirs to support ecological research

Zooplankton transfer substantial energy in aquatic food webs and are used as indicators of environmental change. Syntheses of zooplankton community dynamics globally require datasets that span a wide....

dx.doi.org

Warren Currie 🦠🦐@drplanktonguy.bsky.social · last mo.

Hello everyone. I am taking a social media wellness break from posting my Weekend #Plankton Factoids for the boreal summer. I hope you have the opportunity to do something you enjoy over the season as well. Until then ❤️.

Warren Currie 🦠🦐@drplanktonguy.bsky.social · 2mo ago

Weekend #Plankton Factoid 🦠🦐

image/jpeg a microscope image of a crustacean shrimp-like copepod with bright green fluorescent particles in its gut. Photo from Plymouth Marine Laboratory (PML).

Warren Currie 🦠🦐@drplanktonguy.bsky.social · 2mo ago

Weekend #Plankton Factoid 🦠🦐 Recent news has documented warming in polar regions reducing upwelling of cold nutrient rich water and thus algae production. Researchers investigated the change in carbon to chlorophyll ratio to determine nutrient stress.

image/jpeg a number of oval bright green cells with internal ringed structures is seen in a coloured transmission electron microscope image. Source: Luke Thompson from Chisholm Lab and Nikki Watson from Whitehead, MIT. CCO 1.0 public domain.

Warren Currie 🦠🦐@drplanktonguy.bsky.social · 2mo ago

Weekend #Plankton Factoid 🦠🦐

A brightfield microscope image of a Bosmina zooplankton surrounded by hundreds of armoured Ceratium algae with long spines, which are much too large for it to consume. Photo from DFO, public domain.

image/jpeg an illustration of an algae with patterned armored plates, long spines, and two groves which contain flagella. Ceratium tripos (now Tripos Muelleri) Ernst Haeckel, public domain.

Warren Currie 🦠🦐@drplanktonguy.bsky.social · 2mo ago

Weekend #Plankton Factoid 🦠🦐

image/jpeg a photomicrograph of a long, thin, brownish, torpedo shaped crustacean with bristled antennae, a bright red eye spot. Scale bar indicates the animal is about 1 mm long. Photo from A Slotwinski, CSIRO 2011.

Warren Currie 🦠🦐@drplanktonguy.bsky.social · 3mo ago

Weekend #Plankton Factoid 🦠🦐

image/jpeg a bright orange tear-drop shaped crustacean with two distinct egg sacs.
Photo from: David Gifford.
https://www.shetlandlochs.com/species/eukaryota/animalia/arthropoda/maxillopoda/cyclopoida/cyclopoida/cyclops/abyssorum/

Robert Arlinghaus @rarlinghausfish.bsky.social · 3mo ago

I gave a keynote at #aslo and #Sil conference today in Montreal. Was lots of fun.

Warren Currie 🦠🦐@drplanktonguy.bsky.social · 3mo ago

Weekend #Plankton Factoid 🦠🦐

image/jpeg a microscopic photo of a oblong crustacean with a large black eye about 1 mm long based on a scale bar. A distinctive claw extends from the bottom with a very sharp point. Ceriodaphnia retriculata from An Image-Based Key To The Zooplankton Of North America
https://cfb.unh.edu/cfbkey/html/index.html

image/jpeg an appendage of the zooplankton Ceriodaphnia shows a series of spines along one side of a robust portion, with a very sharp pointed claw extending that has smaller distinctive setae spines at the base. From observation.org Ulrich Drabiniok.

Warren Currie 🦠🦐@drplanktonguy.bsky.social · 4mo ago

Weekend #Plankton Factoid 🦠🦐

image/png a satellite image identifies two different algal communities in the ocean off South Africa on Feb. 28, 2024. The central panel of this image shows Synechococcus in pink and picoeukaryotes in green. The left panel of this image shows a natural color view of the ocean, and the right panel displays the concentration of the photosynthetic pigment chlorophyll-a used to identify the presence of phytoplankton. This is the first composite image from the Ocean Colour Instrument on the PACE satellite. Credit: NASA, public domain.

Warren Currie 🦠🦐@drplanktonguy.bsky.social · 4mo ago

Weekend #Plankton Factoid 🦠🦐

image/png a microscope image of a variety of golden-coloured algae forms, with some forming long chains of cells while others are single-celled. Photo from Stephanie Anderson, University of Rhode Island, public domain.

Warren Currie 🦠🦐@drplanktonguy.bsky.social · 4mo ago

Weekend #Plankton Factoid 🦠🦐

image/jpeg a colourfull shrimp-like creature with large eyes swims against a black background. Euphausia superba, the Antarctic Krill. Photo from Uwe Kils, CC BY-SA 3.0.

Warren Currie 🦠🦐@drplanktonguy.bsky.social · 5mo ago

A nicely crafted article worth reading in Vox that explains the conflict within management agencies related to the widespread practice of stocking non-native fishes. Spoiler: it's about money. https://www.vox.com/climate/483175/fish-stocking-trout-wildlife-agencies

These animals can cause big trouble. Why are states unleashing them by the millions?

Introduced species can wreak havoc on native ecosystems. Many states are flooding their waterways with them.

vox.com

Warren Currie 🦠🦐@drplanktonguy.bsky.social · 5mo ago

Weekend #Plankton Factoid 🦠🦐

image/jpeg a range of bright green colours shows algae growth from a satellite photo of the Bering Sea off the snowy coast of Alaska. Source: NASA, public domain.

Warren Currie 🦠🦐@drplanktonguy.bsky.social · 5mo ago

This is fine... https://apnews.com/article/heat-dome-snow-blizzard-cold-polar-flooding-55e3baf6877e81ee1961aade3cb361c3 #ClimateChange #extremeweather

image/jpeg the meme image of a cartoon dog sitting smiling in a room on fire saying "THIS IS FINE". KC Green "On Fire" 2013.

Warren Currie 🦠🦐@drplanktonguy.bsky.social · 5mo ago

Weekend #Plankton Factoid 🦠🦐 Since March is the last week of Antarctic summer, it is appropriate to discuss a 2025 international study of the "seasonal vertical migration pump" which sequesters an enormous 65 million tonnes of carbon every year. https://doi.org/10.1002/lno.70120

image/jpeg a collection of shrimp-like copepods are shown with bright orange tails and antennae. Long transparent blobs are found at the top of their carapaces which are fats and lipids.
Photo from Daniel Mayor, University of Exeter.

image/jpeg a large red and white research ship floats in calm waters which reflect the rugged, icy, mountainous coast of Antarctica. The RRS Sir David Attenborough, British Antarctic Survey.

Warren Currie 🦠🦐@drplanktonguy.bsky.social · 5mo ago

Grand River, Ontario #spring freshet is underway after temperatures in the teens and significant rainfall. Bank-full and rising.

A bank-full river flows carrying blocks of ice and branches downstream under a deep blue sky.

Warren Currie 🦠🦐@drplanktonguy.bsky.social · 5mo ago

Weekend #Plankton Factoid 🦠🦐

image/jpeg a solitary fish swims through extremely blue, clear water above a lake bottom. Still photo from documentary "All to Clear", by Inspired Planet Productions, with permission.
https://inspiredplanet.ca/alltooclear/

Warren Currie 🦠🦐@drplanktonguy.bsky.social · 6mo ago

Weekend #Plankton Factoid 🦠🦐

image/jpeg a microscopic photograph of a dotted textured pink coloured single-celled organism with a dark orange inclusion.
Citharistes regius, dinoflagellate by Takuro Nakayama, Mami Nomura, Akinori Yabuki, Kogiku Shiba, Kazuo Inaba & Yuji Inagaki. CC BY 4.0.

Warren Currie 🦠🦐@drplanktonguy.bsky.social · 6mo ago

A satisfying outcome of being a scientist is when an organically developed collaborative project comes to fruition, and an early career researcher seizes an opportunity to publish new findings.

Warren Currie 🦠🦐@drplanktonguy.bsky.social · 6mo ago

Weekend #Plankton Factoid 🦠🦐

image/jpeg a scanning electron microscopic image of an algae cells covered in round porous plates that look like inflatable lifeboats. Public domain.

image/jpeg a microscope image of a group of yellow, puffy, star-shaped plankton covered in little holes. Source Alain Couette CC-BY-SA 3.0.

image/jpeg a microscopic nearly transparent snail with a tight spiral shell extends its feeding structure. Source NOAA, public domain.

image/jpeg a microscopic photograph of a spherical organism covered in long pointed spikes. Rhabdosphaera clavigera from Montiero et al. 2016. CC-BY-SA 4.0.

Warren Currie 🦠🦐@drplanktonguy.bsky.social · 6mo ago

Happy #SuperbOwl day to those who celebrate.

A woman in a fancy, red, medieval style dress holds a great horned owl on her arm using a leather guard.

Warren Currie 🦠🦐@drplanktonguy.bsky.social · 6mo ago

Weekend #Plankton Factoid 🦠🦐

image/jpeg a very transparent torpedo shaped crustacean is seen with its antennae folded along underneath its body. A large clear lipid sac is visible extending through the body dorsally. Photo by M. Runge.

Warren Currie 🦠🦐@drplanktonguy.bsky.social · 6mo ago

Weekend #Plankton Factoid 🦠🦐

image/jpeg an underwater scene of a spiked column of yellow-green rock which is producing a stream of dense black smoke. Hydrothermal vent photo from Schmidt Ocean Institute.

image/jpeg a satellite image shows a swirling green algae bloom surrounded by the white of Antarctica in the Ross Sea. Photo from NASA, public domain.

Warren Currie 🦠🦐@drplanktonguy.bsky.social · 6mo ago

Weekend #Plankton Factoid 🦠🦐

image/jpeg an icebreaker ship flying a Canadian flag creates a path of broken ice, which is slightly green-brown tinged. CCGS Griffon, photo from S. Wilhelm.

image/jpeg a block of ice with a thick green-brown growth of algae is propped up on an expansive smooth ice-sheet. Photo from Aarhus University, Lars Chresten Lund-Hansen.

Warren Currie 🦠🦐@drplanktonguy.bsky.social · 7mo ago

Weekend #Plankton Factoid 🦠🦐

image/jpeg microscopic photo of two crustacean zooplankton side by side, with the one on the left distinctly red in colour while the right one is translucent. Image from CES University of Indiana.

Warren Currie 🦠🦐@drplanktonguy.bsky.social · 7mo ago

Weekend #Plankton Factoid 🦠🦐

image/jpeg a photo of tall, very white cliffs emerging from blue water. The cliff tops are covered in a thin layer of green grass, and a lighthouse is seen in the distance. Photo from Archangel12 CC-BY-SA 2.0.

image/jpeg a scanning electron micrograph of a spherical organism covered in oval plates with radiating spokes from a depressed center, looking similar to lifesaver candies. Scale bar suggests cell is about 8 microns in diameter. Photo from Jeremy Young CC-BY-SA 4.0.

Warren Currie 🦠🦐@drplanktonguy.bsky.social · 7mo ago

Weekend #Plankton Factoid 🦠🦐

image/jpeg a scanning electron microscope darkfield photograph of a cluster of light blue oval algae cells with an enlarged outer diameter, making them look like inflatable boats. A scale bar indicates they are 2-5 microns long. Image by Jeremy Young CC-BY-SA 4.0.

Warren Currie 🦠🦐@drplanktonguy.bsky.social · 7mo ago

I haven't been actively installing feeders this winter with bird flu outbreaks in our rural area, but decided to put out a seed cylinder for the holiday. This resulted in a common, but new bird for me: a Yellow-Bellied Sapsucker. #birding

A photo of a woodpecker clutching onto a seed cylinder with a laddered black back, yellow tinged belly and bright red head and chin.

A photo of a woodpecker clutching onto a seed cylinder with a yellow tinged belly, bright red head and chin, and distinct black bib.

Warren Currie 🦠🦐@drplanktonguy.bsky.social · 7mo ago

The CCGS Amundsen is a Canadian research icebreaker run by the non-profit Amundsen Science at Université Laval and operated by Canadian Coast Guard. This past summer, the ship was able to navigate into areas previously off limits due to very thick multi-year ice (5+ yrs, 7 or more metres thick).