Plankton – Farewell! Transition from megalopa stage to juvenile crab coincides with increasing concentration of chromatophores. Abdomen already folded under the carapace with extended chromatophores on both sides. Northern Adriati#planktonon#Invertebrateses
October 13, 2026 at 10:36 AM
Plankton – Farewell! Transition from megalopa stage to juvenile crab coincides with increasing concentration of chromatophores. Abdomen already folded under the carapace with extended chromatophores on both sides. Northern Adriati#planktonon#Invertebrateses
This tiny crab captured by Pedro Valencia of Blackwater Cozumel has me learning about crab life-cycles. Prepare for some vocabulary (& errors)!
This is a swimming stage called a 'megalopa'. The furious tail structures moving a mile a minute are 'pleopods' or swimmerets.
(📷: pedrovalenciam on IG)
This is a swimming stage called a 'megalopa'. The furious tail structures moving a mile a minute are 'pleopods' or swimmerets.
(📷: pedrovalenciam on IG)
September 4, 2026 at 1:46 PM
This tiny crab captured by Pedro Valencia of Blackwater Cozumel has me learning about crab life-cycles. Prepare for some vocabulary (& errors)!
This is a swimming stage called a 'megalopa'. The furious tail structures moving a mile a minute are 'pleopods' or swimmerets.
(📷: pedrovalenciam on IG)
This is a swimming stage called a 'megalopa'. The furious tail structures moving a mile a minute are 'pleopods' or swimmerets.
(📷: pedrovalenciam on IG)
Another short clip from Pedro Valencia with some different angles on the megalopa.
I love how the adult-style body form, with projecting legs, has a special travel configuration that makes it compact, defensible & better at floating free.
Travel-sized crabby!
(📷: Pedro Valencia)
I love how the adult-style body form, with projecting legs, has a special travel configuration that makes it compact, defensible & better at floating free.
Travel-sized crabby!
(📷: Pedro Valencia)
September 4, 2026 at 1:46 PM
Another short clip from Pedro Valencia with some different angles on the megalopa.
I love how the adult-style body form, with projecting legs, has a special travel configuration that makes it compact, defensible & better at floating free.
Travel-sized crabby!
(📷: Pedro Valencia)
I love how the adult-style body form, with projecting legs, has a special travel configuration that makes it compact, defensible & better at floating free.
Travel-sized crabby!
(📷: Pedro Valencia)
The megalopa stage evokes a little blimp or similar bouyant form and how they can be vulnerable to sudden, strong currents.
The occasional leg extensions might be mini course corrections in rapid response.
Wonder if real blimps & drones might benefit from a bio-inspired series of control surfaces?
The occasional leg extensions might be mini course corrections in rapid response.
Wonder if real blimps & drones might benefit from a bio-inspired series of control surfaces?
September 4, 2026 at 2:32 PM
The megalopa stage evokes a little blimp or similar bouyant form and how they can be vulnerable to sudden, strong currents.
The occasional leg extensions might be mini course corrections in rapid response.
Wonder if real blimps & drones might benefit from a bio-inspired series of control surfaces?
The occasional leg extensions might be mini course corrections in rapid response.
Wonder if real blimps & drones might benefit from a bio-inspired series of control surfaces?
2️⃣ Megalopa: Estadio de transición con una forma más parecida al cangrejo, pero aún en proceso de desarrollo. 🌊🔬
@csic.es @csicdivulga.bsky.social @ieo.es @ieo-cadiz.bsky.social @elisanluc.bsky.social @mariasersan.bsky.social
#CienciaCuriosa #BiologíaMarina
@csic.es @csicdivulga.bsky.social @ieo.es @ieo-cadiz.bsky.social @elisanluc.bsky.social @mariasersan.bsky.social
#CienciaCuriosa #BiologíaMarina
January 31, 2025 at 11:22 AM
2️⃣ Megalopa: Estadio de transición con una forma más parecida al cangrejo, pero aún en proceso de desarrollo. 🌊🔬
@csic.es @csicdivulga.bsky.social @ieo.es @ieo-cadiz.bsky.social @elisanluc.bsky.social @mariasersan.bsky.social
#CienciaCuriosa #BiologíaMarina
@csic.es @csicdivulga.bsky.social @ieo.es @ieo-cadiz.bsky.social @elisanluc.bsky.social @mariasersan.bsky.social
#CienciaCuriosa #BiologíaMarina
Here’s a weird one for ya - even by my standards! This #crab has a pair of #barnacles growing out of its forehead!
This crab is in an early life stage known as #Megalopa
#parasitism #symbiosis #blackwater #blackwaterdiving #blackwaterphotography #okinawa #chrisgug #gugunderwater #gug
This crab is in an early life stage known as #Megalopa
#parasitism #symbiosis #blackwater #blackwaterdiving #blackwaterphotography #okinawa #chrisgug #gugunderwater #gug
October 20, 2025 at 12:05 PM
Here’s a weird one for ya - even by my standards! This #crab has a pair of #barnacles growing out of its forehead!
This crab is in an early life stage known as #Megalopa
#parasitism #symbiosis #blackwater #blackwaterdiving #blackwaterphotography #okinawa #chrisgug #gugunderwater #gug
This crab is in an early life stage known as #Megalopa
#parasitism #symbiosis #blackwater #blackwaterdiving #blackwaterphotography #okinawa #chrisgug #gugunderwater #gug
Just a little guy. Christmas Island Red Crab megalopa doing his thing. 🦀
August 29, 2024 at 6:19 AM
Just a little guy. Christmas Island Red Crab megalopa doing his thing. 🦀
I got distracted looking up Christmas Island red crabs and found this picture of a megalopa and now I’m rolling on the floor because it’s too adorable. 🦀
August 16, 2024 at 7:22 PM
I got distracted looking up Christmas Island red crabs and found this picture of a megalopa and now I’m rolling on the floor because it’s too adorable. 🦀
I’m here to campaign for:
1. Universal suffrage for all terrestrial hermit crabs older than megalopa stage of development.
2. Hermit crabs as the 4th branch of U.S. government.
3. Criminalization of not flushing toilets on airlines after pooping; I mean seriously what is wrong with you people!?
1. Universal suffrage for all terrestrial hermit crabs older than megalopa stage of development.
2. Hermit crabs as the 4th branch of U.S. government.
3. Criminalization of not flushing toilets on airlines after pooping; I mean seriously what is wrong with you people!?
May 15, 2026 at 9:27 PM
I’m here to campaign for:
1. Universal suffrage for all terrestrial hermit crabs older than megalopa stage of development.
2. Hermit crabs as the 4th branch of U.S. government.
3. Criminalization of not flushing toilets on airlines after pooping; I mean seriously what is wrong with you people!?
1. Universal suffrage for all terrestrial hermit crabs older than megalopa stage of development.
2. Hermit crabs as the 4th branch of U.S. government.
3. Criminalization of not flushing toilets on airlines after pooping; I mean seriously what is wrong with you people!?
Nan and Emily discuss the origin of the project and why this research is needed. Emily explains the biology and ecology of dungeness crabs, their life stages from plankton to megalopa to their adult form, and their importance in the ecosystem.
September 25, 2024 at 8:46 PM
Nan and Emily discuss the origin of the project and why this research is needed. Emily explains the biology and ecology of dungeness crabs, their life stages from plankton to megalopa to their adult form, and their importance in the ecosystem.
Can I please join? I have offerings of baby megalopa for you
September 9, 2023 at 4:01 PM
Can I please join? I have offerings of baby megalopa for you
Checking the crab traps 😍😍
Look at all these babies!! 🦐 🦀
Part of the False Creek Friends + Hakai Institute light trap monitoring program 🦑 🐙
Look at all these babies!! 🦐 🦀
Part of the False Creek Friends + Hakai Institute light trap monitoring program 🦑 🐙
August 19, 2023 at 8:47 PM
Checking the crab traps 😍😍
Look at all these babies!! 🦐 🦀
Part of the False Creek Friends + Hakai Institute light trap monitoring program 🦑 🐙
Look at all these babies!! 🦐 🦀
Part of the False Creek Friends + Hakai Institute light trap monitoring program 🦑 🐙
tag yourself edición larvas planctónicas de cangrejo
January 1, 2025 at 4:03 PM
tag yourself edición larvas planctónicas de cangrejo
This is already megalopa (which can go on land in some gecarcinids)! They do have zoea also
November 26, 2025 at 2:49 AM
This is already megalopa (which can go on land in some gecarcinids)! They do have zoea also
It's a phyllosoma, megalopa lacks the flattened region!
May 8, 2025 at 10:45 AM
It's a phyllosoma, megalopa lacks the flattened region!
This looks almost like it could be a megalopa larva, with the abdomen so elongate/not tucked under
December 11, 2023 at 12:56 PM
This looks almost like it could be a megalopa larva, with the abdomen so elongate/not tucked under
Was working on some sediment when I found this guy floating on top of a sample (he dead).
What I didn't realise was that this stage of crab development was observable. I figured by the time a crab was visible to the naked eye, it was crab shaped, not still […]
[Original post on mstdn.social]
What I didn't realise was that this stage of crab development was observable. I figured by the time a crab was visible to the naked eye, it was crab shaped, not still […]
[Original post on mstdn.social]
July 9, 2025 at 3:46 PM
Was working on some sediment when I found this guy floating on top of a sample (he dead).
What I didn't realise was that this stage of crab development was observable. I figured by the time a crab was visible to the naked eye, it was crab shaped, not still […]
[Original post on mstdn.social]
What I didn't realise was that this stage of crab development was observable. I figured by the time a crab was visible to the naked eye, it was crab shaped, not still […]
[Original post on mstdn.social]
inspo
crustir and jaivigate
based on the atlantic blue crab, known in spanish as jaiba, a swimming crab with paddle like back legs that allow it to move more freely in the water
crustir is a larvae on the megalopa stage
crustir and jaivigate
based on the atlantic blue crab, known in spanish as jaiba, a swimming crab with paddle like back legs that allow it to move more freely in the water
crustir is a larvae on the megalopa stage
July 15, 2025 at 4:19 PM
inspo
crustir and jaivigate
based on the atlantic blue crab, known in spanish as jaiba, a swimming crab with paddle like back legs that allow it to move more freely in the water
crustir is a larvae on the megalopa stage
crustir and jaivigate
based on the atlantic blue crab, known in spanish as jaiba, a swimming crab with paddle like back legs that allow it to move more freely in the water
crustir is a larvae on the megalopa stage
He made it!!! This is the last surviving hermit crab from the first spawn at the beginning of August! He’s 43 days old today and just went from the Zoeae stage to the megalopa stage! Now he has to learn how to use his legs and pick a shell!
September 23, 2025 at 4:38 PM
He made it!!! This is the last surviving hermit crab from the first spawn at the beginning of August! He’s 43 days old today and just went from the Zoeae stage to the megalopa stage! Now he has to learn how to use his legs and pick a shell!