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#cephalopod

1 post1 participant0 posts today
David Bremner

Broadclub cuttlefish, Sogod Bay, Philippines.

These creatures are extremely expressive, both in changing the colour and pattern of their skin, and the positioning of their tentacles. I think this one feels like I'm in its personal space (0.5m away), and I have been there too long.

#scuba#AliensAmongUs#cephalopod
Jon Sullivan

"Blackwater dive photography is arguably one of the most challenging and relatively new frontiers in the world of underwater macro photography”

This new article in #DPReview profiles Ryo Minemizu, a night time underwater macro photographer (yes, I just learned that’s a thing). The photos are extraordinary, as is the gear and effort taken.

dpreview.com/photography/65615

#photography#macro#fish
*
ScubaHankNYC

Marvels of the North Andaman Sea’s Marine Ecosystem

https://youtu.be/nJdP3BHMO2Q?si=MdEPhnanqMIw_nVk

The North Andaman Sea is a richly biodiverse area teeming with a diverse range of marine life, among them the captivating octopuses. These extraordinary creatures possess remarkable abilities and hold a significant position within the marine ecosystem.

Within the North Andaman Sea, numerous octopus species thrive, including the common reef octopus (Octopus vulgaris), the striking blue-ringed octopus (Hapalochlaena maculosa), and the master of mimicry, the mimic octopus (Thaumoctopus mimicus). The common reef octopus, often encountered, boasts a notable size with an arm span reaching up to 1 meter.

Displaying a high level of intelligence with a sophisticated nervous system, octopuses possess eight arms equipped with two rows of suckers, facilitating gripping and locomotion. Additionally, they possess three hearts that aid in efficient blood circulation throughout their bodies.

Octopuses prove to be adept predators, utilizing their exceptional camouflage skills to ambush a variety of prey, including crabs, shrimp, and fish. Their venomous bite aids in immobilizing and subduing their quarry.

Within the marine ecosystem, octopuses fulfill a crucial role in managing the populations of other marine species. Furthermore, they serve as a vital food source for larger predators such as sharks and rays.

The octopus stands as a marvel of nature, showcasing an array of unique abilities. Its contributions to the marine ecosystem are paramount, making it a captivating spectacle for both scuba divers and snorkelers.

#cephalopod#deepSea#ecotourism
Benjamin Carr, Ph.D. 👨🏻‍💻🧬

This Elusive #Antarctic #Squid Was Seen for the First Time
An expedition in the #SouthernOcean captured video of a rare species of deep-sea #cephalopod. Until now, it had been found only in fishing nets and in the bellies of seabirds.
This particular dive was part of the #NationalGeographic and #Rolex Perpetual Planet Expedition, an initiative to document #climatechange in the mountains, rainforests and #oceans.
nytimes.com/2025/06/11/science
archive.ph/EnQcs

The New York Times · This Elusive Antarctic Squid Was Seen for the First TimeBy Alexa Robles-Gil
Jon Sullivan

I've spent a couple of hours this morning helping to ID the latest observations uploaded to #iNaturalistNZ. It's always interesting to see what species New Zealanders have been finding. While I can help to ID a lot of plants and insects, octopuses I cannot, so we'll wait for a marine expert on that one. Still, look at it! Baby octopus!

Photographed off the coast of Wellington on Friday by millamuck.

inaturalist.nz/observations/28

iNaturalist NZOctopuses (Order Octopoda)Octopuses from Wellington Region, New Zealand on May 16, 2025 at 07:34 PM by Camilla Caton
#iNaturalist#marine#octopus
earthling

The Passenger by Pietro Formis

A paper nautilus perched on a group of salps, Philippines, 2024. A small female paper nautilus (Argonauta argo) perches on a group of salps – a type of animal plankton – in Anilao’s blackwater in the Philippines. She uses these as a platform while she protects and lays her eggs inside her delicate, coiled shell.

@photography
#oceans
#cephalopod

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