Warren Currie 🦠🦐

@drplanktonguy.bsky.social

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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

A tiny crustacean zooplankton with a long spine "nose" looks like a elephant or the Mastodon logo. Bosmina longirostis.
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).
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.
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 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.
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/
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/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.
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.
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.
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.
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.
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.
A bank-full river flows carrying blocks of ice and branches downstream under a deep blue sky.
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/
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.
image/jpeg a scanning electron microscopic image of an algae cells covered in round porous plates that look like inflatable lifeboats. Public domain.
A woman in a fancy, red, medieval style dress holds a great horned owl on her arm using a leather guard.
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.
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 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 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.
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 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.
A photo of a woodpecker clutching onto a seed cylinder with a laddered black back, yellow tinged belly and bright red head and chin.
image/jpeg researchers in orange life suits take measurements on a snow covered ice sheet that extends into the distance. A red ship with a helicopter and Canadian flag sits in the background. Source: Amundsen Science.
image/jpeg a microscopic dark-field photograph shows an oval transparent clam-like organism with an orange interior, distinct eye-spot, and antennae extending to the front. Vargula hilgendorfii. CC-BY-SA 4.0
image/jpeg a series of 6 microscopic photos shows the revival of a dried inert form of a dark orange rotifer. The organism gradually extends into the adult form which is elongated with a pointed tail and ciliated mouthparts at the head. Stills from video taken by Christian Colin. http://www.microscopy-uk.org.uk/mag/artsep08/wd-rotifer.html
image/jpeg a microscopic photograph of an almost completely transparent crustacean with long antennae extending to the sides, making it look like a winged insect. Source: https://cfb.unh.edu/cfbkey/html/Organisms/CCladocera/FLeptodoridae/GLeptodora/Leptodora_kindti/leptodorakindti.html
image/gif a microscopic video of an elongated clam-like animal extending its antennae and legs to swim. Dark structures inside the shell show the anatomy of the organism inside. CC-BY-SA 4.0 by ikjbagl
image/jpeg the feeding current of a copepod zooplankton is shown by lines of the path of water. Two circular gyres are formed at the ends of the antennae beside the head which focuses water current into the head of the copepod, highlighted in red. A scale bar indicates the animal is about 1 mm long. https://www.oceanlifecentre.dk/news/nyhed?id=ebaa37ec-c19f-482a-a7ea-b02e7553588d
image/jpeg a collection of microscopic photos of organisms with a wide diversity of vase-shaped shells. Colour ranges from yellow to red to purple. A size bar indicates they are about 50 microns in width but can be many times longer. Taken from Dolan et al. 2013. https://www.wiley.com/en-us/The+Biology+and+Ecology+of+Tintinnid+Ciliates%3A+Models+for+Marine+Plankton-p-9780470671511
image/jpeg a satellite image of Lake Ontario is dark blur against the brown of the watershed. MODIS NASA November 2009.
image/jpeg a man stands with a shovel against a huge pile of seaweed on a sandy tropical beach. Photo credit: Michael Owen 2015 Cancun Mexico.
image/jpeg a satellite image shows the dark waters of Lake Superior with the greens and bronze colours of the land surrounding it. Public Domain. MODIS satellite image.
image/jpeg a microscope image of several examples of an organism with two flagella showing distinctive purple, blue, yellow and white structures. Successive greyscale images show the cell structures highlighted by staining using NHS (protein), MTs (microtubules), Cetn (centrin) and DNA. Prymnesium faveolatum CC-BY-SA 4.0. https://doi.org/10.1016/j.cell.2025.09.027
image/jpeg a dark blue jelly-like creature with a tall transparent vertical sail at 45 degrees to its body is seen on a sandy beach. Photo by Brian Bull KLCC https://www.klcc.org/environment/2019-05-31/oregon-beaches-experiencing-blue-tide-of-velella-velella
image/jpeg an illustration of the Arctic productivity cycle showing the sun rising higher in April to provide sunlight to support the growth of algae and phytoplankton. The summer sun drives production of dense bloos in June, leading to growth of grazing zooplankton which drives vertical flux of nutrients via fecal matter to the deep waters. Production gradually declines during as the phytoplankton use up nutrients and reduced sunlight. Illustration: Alexander Keck & Paul Wassmann (1993), modified by Frøydis Strand, NFH, University of Tromsø
image/jpeg a wide diversity of shapes of coloured glass shells are seen in a microscopic image. CC BY-SA 4.0.
image/png a microscopic image of a spherical yellow organism filled with green dots and having numerous spines radiating from the surface. A scale of 50 microns indicates the sphere is about twice that measure. James L. Van Etten, Irina V. Agarkova, David D. Dunigan CC BY-SA 4.0. https://commons.wikimedia.org/wiki/File:Viruses-12-00020-g001_Chlorella_Virus_(C).png#mw-jump-to-license
image/jpeg a mostly transparent elongated organism with hooked antenna on the head and a wide fan of spines at the tail floats in the water. CC BY-SA 4.0.
image/jpeg a darkfield micrograph of a spider-like transparent crustacean larva with extremely long legs and bulging stalked eyes. CC BY-SA 4.0
image/jpeg a darkfield microscope image of a translucent wedge shaped crustacean zooplankton with 4 sets of spiny legs, a dark red eye spot and two distinctive pointed horn spines at the head. CC BY-SA 4.0.
image/jpeg a microscope photograph shows a spherical orange egg with a spiky surface. Calanoid diapause egg.
Side by side images of a distinctly triangular microscopic organism. On the left is a microscope image of a brown, mostly transparent bell shape with organelles inside and cilia around the edge (CC BY-SA 4.0). On the right is an anatomy diagram of the same organism with labels of: apical sense organ, ciliated ridge, inhalent chamber, and corona at the bottom. Taken from Hayward & Ryland (1998).
image/png a surface water temperature map of Lake Ontario shows mostly yellow and orange colours of about 20C except for bluish-green colour along the northern coast from Toronto to the east of 10-12C. Sept 1 2025. Image from NOAA Coastwatch.
image/jpeg two microscope images of a golden brown coloured algae cell on the left and a black and white SEM image on the right showing the distinct grooves, one lateral, on vertical where the flagella are located. Images from NOAA and WHOI.
image/jpeg a graphic drawing of Mesodinium rubrum of a round organism with extended spines consuming a Geminigera cryophila cell that has two flagella. Text reads "Steals prey nucleus (kleptokaryon) and other organelles. Final diagram shows organelles inside the cell. From Johnson et al. 2023. https://doi.org/10.1016/j.cub.2023.01.027
image/jpeg bright red water the colour of blood washes against rocks. Photo of Sea of Galilee unattributed.
The entrance to an old red covered bridge is seen with a blue historical plaque to the side.
image/png a tiny crustacean with long extended antennae is dark orange with pigment in a microscope photograph. Photo: Hans Berggren in Hylander et al. 2012. https://doi.org/10.1111/j.1365-2435.2012.01976.x
image/jpeg microscope photo of long strands of brown-red algae with puffy globular growths on it. Planktothrix rubescens with chytrid infection. https://www.igb-berlin.de/en/project/integrating-fungal-parasites-plankton-ecology
image/jpeg scientists wearing hardhats retrieve a large sampler with 24 water sampling bottles arranged in a circle (rosette) off the side of a bright blue ship. Royal Netherlands Insitute for Sea Research (NIOZ) RV Pelagia during the 2023 DUST expedition.
image/jpeg swirls of varied green colours stand out from the bright blue Atlantic Ocean in a satellite photo from along the eastern coast of Canada and USA. Source NASA and Lian Feng CC BY NC 2.0.
image/jpeg two views of the earth are shown side-by-side. Clouds, ocean, terrestrial land types are featured. From Reto Stöckli and Robert Simmon using MODIS and USGS satellite imagery. Public Domain.
image/jpeg scattered icebergs float in the ocean against a background of snow covered mountainous terrain. Antarctica, Christopher Michel CCA 2.0.
image/jpeg Map of the Nordic Seas and subpolar basins with paths circulation of surface currents and deep currents (dashed) that form a portion of the Atlantic Meridional Overturning Circulation. Colors of curves indicate approximate temperatures being warmer further south. R. Curry, Wood's Hole Oceanographic Insitution CC BY 3.0.
A menacing, dark yellow-orange sky illuminates the ground at a campground during a severe thunderstorm.
A buffy coloured backlit bird flies with wings wide. Tail has a distinctive black tip.
A photo from above a sampling platform of a red research ship showing a technician retrieving a zooplankton net. The water is extremely green with floating patches of white foam. Photo from the CCGS Limnos Aug 2019 Lake Erie survey. Source DFO CC-BY-SA.