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World Association of Copepodologists

@copepodology.bsky.social
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Official account of the World Association of Copepodologists (WAC) | Message/tag us @copepodology for shares | www.monoculus.org

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Lisa @tuexplorer1.bsky.social · 04/09/2026
2495m Copepod w/ a scale worm flyby #OkeanosExplorer EX2606 dive 5 #MarineLife
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LIB @leibnizlib.bsky.social · 04/06/2026
New branches of the tree of life are still being discovered. A new family of Monstrilloida—tiny parasitic crustaceans—has been identified from the deep North Atlantic, revealing an unexpected lineage. #LIBresearch © Suárez-Morales et al., CC BY 1/3
Black-and-white scientific line drawing of Thalassodoron bathyale showing lateral habitus view, segmented perioral appendage, anterior cephalic area, and detailed views of various body appendages.
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Lisa @tuexplorer1.bsky.social · 12/03/2026
Awesome parasitic copepod on this macrourid. Something like Sphyriidae or Pennelidae maybe? Iirc those white strings are the eggs? @schmidtocean.bsky.social dive 565 part 2 #GalapagosVents #MarineLife
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World Association of Copepodologists @copepodology.bsky.social · 02/03/2026
See ad for PhD student position in parasite and plankton behavioural biology and ecology at NTNU in Trondheim, Norway www.jobbnorge.no/en/available...
jobbnorge.no
PhD Candidate in parasite and plankton behavioural biology and ecology (296771) | NTNU - Norwegian University of Science and Technology
Job title: PhD Candidate in parasite and plankton behavioural biology and ecology (296771), Employer: NTNU - Norwegian University of Science and Technology, Deadline: Monday, April 13, 2026
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World Association of Copepodologists @copepodology.bsky.social · 22/02/2026
If you study Centropages, check this leaflet!
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Genome Biology and Evolution @genomebiolevol.bsky.social · 17/02/2026
Powers & Barreto captured gene expression over a species-typical course of hypoxia in an intertidal copepod, identifying genes with known responses to hypoxia, including genes with interactions with HIF-α in other systems. 🔗 doi.org/10.1093/gbe/evag013 #genome #evolution
doi.org
Transcriptomic Adjustment to Decreasing Oxygen Reveals Novel Functional Strategies for Extreme Hypoxia Tolerance in the Copepod Tigriopus californicus
Abstract. Hypoxia-induced regulatory changes are well understood across aquatic and terrestrial systems. These changes are normally initiated by elements b
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ZooKeys @zookeys.pensoft.net · 12/01/2026
Description of a new copepod species, from a deep-sea hydrothermal vent in the Onnuri Vent Field on the Central Indian Ridge: doi.org/10.3897/zook... #taxonomy #newspecies #copepod
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World Association of Copepodologists @copepodology.bsky.social · 13/12/2025
Discovery of an unidentified species of nicothoid copepod infesting cancrid crabs in Santa Barbara, California doi.org/10.1002/ecy....
doi.org
Discovery of an unidentified species of nicothoid copepod infesting cancrid crabs in Santa Barbara, California
Click on the article title to read more.
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World Association of Copepodologists @copepodology.bsky.social · 10/12/2025
Digital copies for sale plus a few limited hard copies at: www.copepodcabinet.com If interested in a hard copy, use the “Ask a Question” button on the bottom of the website
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World Association of Copepodologists @copepodology.bsky.social · 04/12/2025
The Copepodologist's Cabinet book series by David Damkaer is now available in digital copy for sale at: www.copepodcabinet.com There are a few limited hardcopies. If interested in a hard copy, act now before they sell out by using the “Ask a Question” button on the bottom of the website
copepodcabinet.com
The Copepodologist's Cabinet | David Damkaer
CopepodCabinet.com offers digital editions of The Copepodologist's Cabinet, Dr. David Damkaer's comprehensive history of the naturalists and scientists who, since ancient times, have studied the micro...
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ZooKeys @zookeys.pensoft.net · 24/11/2025
A new species of the copepod genus Pseudodiaptomus is described from specimens collected from the Great Barrier Reef, Australia. See more here: doi.org/10.3897/zook... #copepods #endemicspecies #newspecies
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ZooKeys @zookeys.pensoft.net · 18/11/2025
First record of an association between the copepod genus Hemicyclops and the scleractinian coral Galaxea fascicularis, with a newly described species: doi.org/10.3897/zook... #copepods #corals #crustaceans
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ZooKeys @zookeys.pensoft.net · 19/11/2025
Detailed morphological (re)descriptions of two copepod species from Korea, including one new to science: doi.org/10.3897/zook... #biodiversity #crustaceans #meiofauna
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pancrustacea.bsky.social @pancrustacea.bsky.social · 06/11/2025
New preprint! 🌊 Hypoxia adaptation shapes genomic architecture and vertical niche transitions in copepods www.biorxiv.org/content/10.1... ‪@biorxiv-evobio.bsky.social‬ Great work by Kévin Sugier from @cea.fr and Romuald Laso-Jadart ‪@recherche.mnhn.fr‬
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World Association of Copepodologists @copepodology.bsky.social · 04/11/2025
Submissions for the WAC Student Grant program are open now until Dec 1. We anticipate making up to three $1,000 awards to support student (graduate or undergraduate) research on copepods. See details👇 www.monoculus.org/student-gran...
monoculus.org
STUDENT GRANT PROGRAM
WAC is offering up to three student research grants per year in accordance with the availability of WAC funds, with each award covering up to $1,000 maximum to support copepod research (including but ...
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Patrick Goymer @patrickgoymer.bsky.social · 27/10/2025
A new study in @plosone.org reports that molecular-level consequences of mitochondrial replacement in the copepod Tigriopus californicus are detectable but may not translate into clear organismal-trait differences. doi.org/10.1371/jour...
doi.org
Molecular consequences of mitochondrial replacement may be masked from organismal traits in Tigriopus californicus
Mitochondrial replacement therapy (MRT) presents a promising preventative measure to combat mitochondrial diseases. However, the long-term consequences of disrupting mitonuclear coevolution at both th...
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Zoosystematics and Evolution @zse.pensoft.net · 08/10/2025
𝑀𝑜𝑛𝑔𝑜𝑙𝑜𝑑𝑖𝑎𝑝𝑡𝑜𝑚𝑢𝑠 𝑛𝑎𝑘ℎ𝑜𝑛𝑝ℎ𝑎𝑛𝑜𝑚𝑒𝑛𝑠𝑖𝑠, a new species of diaptomid copepod, is described from surface water bodies in Nakhon Phanom Province, north-eastern Thailand. 🔗 doi.org/10.3897/zse....
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EcoEvoRxiv @ecoevorxiv.bsky.social · 25/09/2025
"A high-resolution physiological timeseries uncovers strong but variable seasonal acclimation of thermal limits in a copepod community" doi.org/10.32942/X25...
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Jimmy Bernot 🦐🔬🧬🏳️‍🌈 @jimmybernot.bsky.social · 21/09/2025
Not every day that you get to describe something from a Megamouth 🦈 🧪 This species of parasitic copepod was first described in 1978 from a Megamouth off Hawaii and has only been collected a couple of times. Here we describe the male for the first time www.jstage.jst.go.jp/article/pbr/...
jstage.jst.go.jp
The male of Dinemoleus indeprensus Cressey & Boyle, 1978 with a brief overview of sexual dimorphism in the family Pandaridae (Copepoda: Siphonostomato …
The male of Dinemoleus indeprensus reported, to date, only on the megamouth shark, Megachasma pelagios, is described in detail. It has a 2-segmented a …
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Biodiversity Data Journal @bdj.pensoft.net · 16/09/2025
A comprehensive dataset of fish–copepod associations, based on the World of Copepods database. #macroecology #parasites #copepods doi.org/10.3897/BDJ....
doi.org
Global patterns of modularity and narrow host use in fish-parasitic copepods (Crustacea)
Parasitic copepods are amongst the most diverse and ecologically significant parasites of fish, yet their macroecological patterns remain poorly understood. In this study, a comprehensive dataset of f...
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Climate, Ecology, War & More: Dr. Glen Barry BigEarthData.ai @bigearthdata.ai · 16/09/2025
Copepod Prey Data Improves North Atlantic Right Whale Management Model ->NOAA Fisheries | #Data #Wildlife #Whale | More info from BigEarthData.ai
fisheries.noaa.gov
Copepod Prey Data Improves North Atlantic Right Whale Management Model
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World Association of Copepodologists @copepodology.bsky.social · 16/09/2025
The Proceedings of the 15th International Conference on Copepoda has just been published! Very diverse research topics reflective of our diverse membership. Check it out: 🦐🧪 www.jstage.jst.go.jp/browse/pbr/2...
jstage.jst.go.jp
Plankton and Benthos Research, Volume 20, Issue Spec
Published by The Plankton Society of Japan, The Japanese Association of Benthology. FREE ACCESS
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World Association of Copepodologists @copepodology.bsky.social · 11/09/2025
New paper out in the WAC PeerJ hub: Imaging analysis on two oceanic copepods peerj.com/articles/199... via @peerj.bsky.social
peerj.com
Analysis of imaging data on seasonal changes in the population structure and vertical distribution of two dominant planktonic copepod species in the western subarctic Pacific
Traditionally, zooplankton analyses have relied on stereomicroscopes, but recent advancements in imaging analysis have offered significant advantages, including the simultaneous collection of abundanc...
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ZooKeys @zookeys.pensoft.net · 27/08/2025
Researchers of Khon Kaen University described two new copepod species of the species-rich genus Tropodiaptomus, collected from temporary water habitats in Southeast Asia. Find out more about them here: doi.org/10.3897/zook... #biodiversity #endemicspecies #freshwaterfish
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Michael Middlebrooks @secretsluglab.bsky.social · 27/08/2025
Two for one invertebrates for #InverteFest. Here is the nudibranch Hypselodoris tryoni, in Komodo Indonesia, where you can see the purple eggs of a parasitic copepod sticking out from the slug's gill pocket. #sluglife #nudibranch🧪🦑
A yellow nudibranch see slug with dark purple spots. The spots have a white border around them. The slugs' mantle is has a purple edge. In the gills of the slug you can see some purple parasitic copepod eggs sticking out.
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World Association of Copepodologists @copepodology.bsky.social · 11/08/2025
The 5th International Workshop on Symbiotic Copepoda was undoubtably a major success! We couldn’t have asked for better hosts at CEMACS, Malaysia. We miss you already!
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World Association of Copepodologists @copepodology.bsky.social · 07/08/2025
IWOSC lectures and lab today on copepod identification at the Centre for Marine and Coastal Studies
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World Association of Copepodologists @copepodology.bsky.social · 06/08/2025
Productive day of collecting at the 5th International Workshop on Symbiotic Copepoda (IWOSC) here in Penang, Malaysia 🇲🇾🧪
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World Association of Copepodologists @copepodology.bsky.social · 05/08/2025
Tutors and organizers of the current International Workshop on Symbiotic Copepods (IWOSC). Official photo of the whole group to be taken on Friday. Stay tuned for more!
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World Association of Copepodologists @copepodology.bsky.social · 02/08/2025
Kicking off the International Workshop on Symbiotic Copepoda here in Malaysia at the Centre for Marine and Coastal Studies 🥳
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Jimmy Bernot 🦐🔬🧬🏳️‍🌈 @jimmybernot.bsky.social · 02/07/2025
Excited to share our new paper on Kroyeria—a group of parasitic copepods found on sharks. Best part of the project was working with Greg Deets, who imo is the GOAT when it comes to copepod illustrations. We describe 5 new species & redescribe most others 🧪🦐 doi.org/10.1645/24-115
Line drawings of Kroyeria copepods. Left to Right: a copepod attached to shark gills, whole copepod, lateral view of a copepod head and thorax, central view of head region, detail of copepod maxilliped claw, at bottom left of image is a long, worm-like species named Kroyeria caseyi
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World Association of Copepodologists @copepodology.bsky.social · 01/07/2025
Distribution and Abundance of Copepoda in Shatt Al-Basrah Channel, Southern Iraq www.ijaqua.uobasrah.edu.iq/index.php/ja...
ijaqua.uobasrah.edu.iq
Distribution and Abundance of Copepoda in Shatt Al-Basrah Channel, Southern Iraq | Iraqi Journal of Aquaculture
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Canadian Journal of Zoology @canjzoology.bsky.social · 13/06/2025
NEW 📰 Mouth-attaching copepod Salmincola markewitschi reduces the body condition and growth of juvenile salmonids Salvelinus leucomaenis, by decreasing host feeding activity: evidence from parasite removal experiment Murakami et al. buff.ly/0KgyRfb #OpenAccess
buff.ly
Ectoparasitic copepods in the genus Salmincola Wilson, 1915 are considered harmful to host salmonids, yet experimental studies on the mechanism by which these copepods affect hosts are critically limited.
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Peri Coleman @pericoleman.bsky.social · 08/06/2025
Sheaoak Flat has a fascinating soup of organisms in the near shore at the moment - in between the mass of organic debris partially dissolved in the water post-storm that blew some of the bloom away… Here is a cure copepod to brighten up your day
Tiny microcrustacean copepod, about 1mm long, carrying two egg sacks tucked between its legs and lower abdomen
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EcoEvoRxiv @ecoevorxiv.bsky.social · 21/05/2025
Revisiting the copepod diversity of Indian Sundarbans through estimation of carcasses doi.org/10.32942/X2G...
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Leocadio Blanco-Bercial @blancobercial.bsky.social · 20/05/2025
Fresh from the press - a new #copepod species from Roadside cave in #Bermuda. This is female we got during our 2016 expeditions. The manuscript includes a downloadable 3D model! Thanks to Giovanni Mussini from @magdalenecollege.bsky.social for taking the lead! zookeys.pensoft.net/article/1444...
zookeys.pensoft.net
A new species of Tetragoniceps Brady, 1880 (Copepoda, Harpacticoida, Tetragonicipitidae) from an anchialine cave in Bermuda, with an updated key to the species of the genus
Tetragoniceps bermudensis sp. nov. (Copepoda, Harpacticoida, Tetragonicipitidae) is described based on an ovigerous female collected from Roadside Cave, a tidally influenced anchialine cavern in Bermu...
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Felix Javier @felixjavier.bsky.social · 12/05/2025
First attempt at 3D printing a copepod!
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Chris Mah @echinoblog.bsky.social · 14/04/2025
PARASITE! copepod on this Nematocarcinus, 1518 m, Volador seamount, #okeanos #saveNOAA
brown shrimp with big parasite on the sidebrown shrimp with big white parasite on side
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Colin Simpfendorfer @sharkcolin.bsky.social · 01/04/2025
Inspired by @fishguy.bsky.social 's #MyFirstPaper post I thought I would do the same. In 1988, working with Roger Cressey from the Smithsonian, we described the beast pictured below - Pseudopandarus australis - a copepod parasite on requiem and hammerhead sharks of eastern Australia. /1
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World Association of Copepodologists @copepodology.bsky.social · 11/03/2025
We have now a PeerJ Hub to highlight research made on Copepoda!! Please see details below!
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Ryota HASEGAWA @ryotahasegawa922.bsky.social · 07/03/2025
Our paper on the highly threatened population status of the parasitic copepod #Salmincola californiensis has been published in Aquatic Conservation. My first paper on parasite conservation! onlinelibrary.wiley.com/doi/10.1002/...
onlinelibrary.wiley.com
Highly Threatened Status for the Relict Populations of Ectoparasitic Copepod Salmincola californiensis in Japan
Many species have been threatened over the past century because of anthropogenic disturbances. Parasites are among the most vulnerable groups because they rely on host organisms, many of which are no...
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Jimmy Bernot 🦐🔬🧬🏳️‍🌈 @jimmybernot.bsky.social · 28/02/2025
Excited to share our recent paper, which is one of the first phylogenomic analyses of copepods 🧪 TLDR: the order Harpacticoida should be split, with 2 families forming their own new order—Canuelloida doi.org/10.1016/j.ym...
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Lisa @tuexplorer1.bsky.social · 02/03/2025
Fantastic parasitic copepods on this grenadier! @schmidtocean.bsky.social dive 798 #SouthSandwichIslands #MarineLife
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phy_papers @phypapers.bsky.social · 24/02/2025
Copepod phylogenomics supports Canuelloida as a valid order separate from Harpacticoida pubmed.ncbi.nlm.nih.gov/39986405
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Parasite - The Journal @parasitejournal.bsky.social · 24/02/2025
This paper described a new species of parasitic copepod, Brachiella malayensis, from fish off Peninsular Malaysia [2020🧪] More details: doi.org/10.1051/para...
Brachiella malayensis n. sp., female, based on a specimen found from Scomberomorus commerson collected off Besut, Terengganu, Malaysia. (A) Habitus, dorsal view; (B) habitus, lateral view; (C) genital area, ventral view, (a) anus, (gp) gonopore, (cp) copulatory pore; (D) antennule, reduced element arrowed; (E) antenna; (F) mandible; (G) maxillule; (H) maxilliped; (I) tip of maxilliped. Scales in mm.
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GBIF Morpho 🦋 @gbifmorpho.bsky.social · 10/02/2025
New #checklist dataset in @gbif.org: The hadal benthopelagic Calanoida from the Kurile-Kamchatka Trench, North Pacific with the description of a new diaixid genus (Copepoda: Calanoida) www.gbif.org/dataset/59564598-1d12-…
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World Association of Copepodologists @copepodology.bsky.social · 18/02/2025
Congrats to this year’s recipients of our Student Grant Awards: -Agostina Tabilio Di Camillo - functional traits of copepods in groundwater ecosystems -Anitha Mary Davidson - Resilience of copepods to acidic waters -Eve Smerczynski - Impacts of climate change on estuarine food webs [1/2] 🧪
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Elizabeth Beston @elizabethbeston.bsky.social · 14/02/2025
This is so cool! This is a Harpacticoida copepod from the genus Phyllopodopsyllus. This is my first time seeing one, because they are considered benthic (live on the seafloor). What’s so amazing is that the females have adapted fifth swimming legs that make a brood pouch! 🦑
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Jimmy Bernot 🦐🔬🧬🏳️‍🌈 @jimmybernot.bsky.social · 07/02/2025
Excited to share our new paper! We developed a key to the genera of Caligidae, the largest family of parasitic copepods, which includes >500 species in 27 genera. Available here: doi.org/10.1645/24-97 I spent a lot of time imaging copepods for this project...🧪 [🧵1/5]
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Elizabeth Beston @elizabethbeston.bsky.social · 10/02/2025
A beautiful lady Pseudocalanus sp. copepod. This gorgeous girl is carrying eggs, in what I assume are early development. 🦑 #plankton
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