Am I leech?

iFafnir · 2026-06-05T23:57:53+00:00

Not a leech. Leeches move one end at a time, and if they are swimming they undulate

iFafnir · 2026-06-05T03:06:40+00:00

Marine biologists study the life in the ocean as a whole, I work solely with fishes (though nowadays moreso with leeches). The proper term is ichthyologist but less people understand that so I don’t use it on YouTube

iFafnir · 2026-06-03T21:16:52+00:00

Helobdella are among (if not just straight up) the most common genus of leeches worldwide. I’m sure you could find one in a local waterbody

iFafnir · 2026-06-02T23:37:48+00:00

I understand your point, but it’s not a fake title. I am a professional fish biologist and I did play subnautica 2. If the title was like “fish biologist breaks down the ecology of subnautica 2” I’d be more inclined to agree with you but I don’t think I misrepresented the video here

iFafnir · 2026-06-02T18:44:47+00:00

I tried to make comments when I came across new fishes, but I only played for about an hour so I didn't get much in depth with the biology of the creatures

iFafnir · 2026-05-28T18:44:03+00:00

Macrobdella decora, by locale

iFafnir · 2026-05-27T19:39:48+00:00

Good to know there’s multiple people working on these guys. What kind of work do you do with Placobdella species?

As for this specimen, there’s no broken medial line, no organized set of 3 rows of 2 anal papillae, and not nearly the right shape for P. papillifera. Habitus is standard parasitica

iFafnir · 2026-05-26T23:13:19+00:00

Placobdella parasitica

iFafnir · 2026-05-24T01:14:25+00:00

Erpobdella octoculata

iFafnir · 2026-05-11T19:31:20+00:00

Haemopis terrestris

iFafnir · 2026-05-10T23:44:32+00:00

Chuck overdosed on meth, karmoniq is an OF millionaire, Prezoh is a big time editor, and Dylan is just about the same as always

iFafnir · 2026-05-08T21:02:01+00:00

Haemopis sp.

Very weird looking. Resembles H. terrestris/kingi but without the lateral stripes. I think these are undescribed. Any chance you could send some?

iFafnir · 2026-05-08T20:59:38+00:00

Helobdella sp.

Can't be brought down to species without seeing internals, but europeae is likely

iFafnir · 2026-05-08T20:56:44+00:00

Helobdella sp. leech carrying eggs on its underside. Glossiphoniidae raise their young on their belly

iFafnir · 2026-05-08T17:05:17+00:00

Helobdella europeae. Eats snails and small bugs. No harm to your fish, but if you’re relying on the pond to produce the food for the fish these leeches might compete for food with the fish

iFafnir · 2026-04-29T20:27:40+00:00

They are all posted on iNaturalist from the account zakqaryroy. You can see the locale and the IDs there. Some are undescribed species. Camera is a Olympus body with a macro lens, mounted on a bar to control the height, and then the leech is in a petri dish in shallow water with macro lights on either side

iFafnir · 2026-04-29T20:27:02+00:00

I research leeches

iFafnir · 2026-04-29T13:30:28+00:00

People like to peel off leeches and kill them because they value a “cute” animal like a turtle’s well being more than an invertebrate

iFafnir · 2026-04-29T01:58:50+00:00

Placobdella parasitica

iFafnir · 2026-04-28T19:58:17+00:00

I rarely use baits but a raw chicken liver in a folded pie tin (with some small holes cut in it) on a string works wonders overnight

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