Darya Krupenko

marine biodiversity and parasites

[Darya Krupenko @redia_matros]

Happy New Year set of cercariae in polarized light 🎄🎄🎄

[Darya Krupenko @redia_matros]

The URL link provides 50 days' free access (until 26.11.2020) to that article.

[Darya Krupenko @redia_matros]

Digeneans of the family Brachycladiidae use marine mammals as the definitive hosts. The first life cycle for this group was elucidated recently by George Kremnev, my friend and PhD student.
https://t.co/7ozNt2ywHb

#WormWednesday
#Flatworm #Parasite #Digenea

[Darya Krupenko @redia_matros]

The infection of the next host (plankton copepod) is provided by a delivery tube: when copepod bites tail capsule, the tube is everted and cercarial body breaks into the host haemocoel through it.
#flatworm #parasite #plankton

[Darya Krupenko @redia_matros]

My new life-cycle article is being published on #WormWednesday! @myope_ann is in business as well:)
https://t.co/TMlukTrbvO
Here we described cercariae and sporocysts of marine digenean Hemiurus levinseni, and ran molecular phylogenetic analysis for this species.

[Darya Krupenko @redia_matros]

Hemiurid cercariae are of cystophorous type, and thus demonstrate peculiar transmission strategy. Their tail forms a capsule within which the body is hidden – this provides the longevity. Cercariae development is here on pic

[Darya Krupenko @redia_matros]

@yniimi808 @echinoblog Yep)

[Darya Krupenko @redia_matros]

Urastoma cyprinae are symbiotic turbellarians, here they wander in the mantle cavity of blue mussel. #WormWednesday #flatworm #symbiont #WhiteSea #mussel

[NHM_Bryozoa @BryozoanNhm]

#WormWednesday Exfoliated tube of a Cretaceous serpulid worm tube exposing Fe-filled cavities created around the zooids and stolons of the symbiotic hydroid Protulophila. Gault Clay.

[Darya Krupenko @redia_matros]

And here is the microniscus larva parasitic on plankton copepod.
#Parasite #Crustacea #WhiteSea #Isopod

[Darya Krupenko @redia_matros]

Bopyridae are isopod crustaceans with parasitize decapods. In the White Sea they are often found on the hermit crab Pagurus pubescens. Female and male live in the host's branchial cavity - note the inflated carapace on the first picture.

[Darya Krupenko @redia_matros]

Male and female are on the second picture. This year I caught and fix adult bopyrids and microniscus larvae - hope to make some utrastructural and life cycle research on them.

[Journal of Helminthology @JHelminthology]

Jellyfish are eaten by a range of marine animals, and some parasites make use of that to complete their life-cycles.

This study looked at the role jellyfishes play in the life-cycle of lepocreadiid flukes.

#WormWednesday
(photos by Joanna Browne)
https://t.co/QsppPdgDJ1

[Darya Krupenko @redia_matros]

Baby sunstar Crossaster papposus with graceful tube feet walks across my petri dish. #Echinodermata #WhiteSea #Microscopy

[Darya Krupenko @redia_matros]

#MolluscMonday with Lacuna vincta (a bit too colorful:)

[Darya Krupenko @redia_matros]

While conducting students' summer practice at the White Sea (or just collecting digenean hosts for research), i often encounter various beautiful invertebrates like this syllid polychaete.
#WhiteSea #Polychaeta #Syllidae

[Darya Krupenko @redia_matros]

Fellodistomids are in the focus of our research group (Anna Gonchar is also here as @myope_ann :); our new data on them were published recently in the @JHelminthology (https://t.co/pkUMzfjFiE) and summarized in bachelor's thesis of Sasha Uryadova.

[Darya Krupenko @redia_matros]

For #WormWednesday here are two maritae of Fellodistomum fellis, one of the prettiest digeneans in the White Sea. They have an enormous red ventral sucker, inhabit wolffish gall bladder and feed on blood. Speed x9.
#WhireSea #Parasire #digenea #sealife

[Darya Krupenko @redia_matros]

Apart from the passion for marine biodiversity in whole my primal interest is in Digenea - parasitic flatworms. Here we have cercariae larvae of Neophasis oculata, the species me and my team deeply work with at the White Sea now. #whitesea #digenea #Parasite #sealife

[Darya Krupenko @redia_matros]

Red forest of common sunstar (Crossaster papposus) skin with spines and papulae. #Echinodermata #WhiteSea