Gabriel Jensen
@shallowseasgallery.com
Underwater Photonaturalist, Guide, & Critter Spotter sharing the weird & colorful life found in Florida’s urban waterways. Shallowseasgallery.com
Happy National #SeaSlug Day!
They are one of my favorite things to show people who don’t know about a local urban wildlife, especially since they live closer than you think! #nudibranch #marinescience #marinelife #underwaterphotography
They are one of my favorite things to show people who don’t know about a local urban wildlife, especially since they live closer than you think! #nudibranch #marinescience #marinelife #underwaterphotography
October 29, 2025 at 3:35 PM
Happy National #SeaSlug Day!
They are one of my favorite things to show people who don’t know about a local urban wildlife, especially since they live closer than you think! #nudibranch #marinescience #marinelife #underwaterphotography
They are one of my favorite things to show people who don’t know about a local urban wildlife, especially since they live closer than you think! #nudibranch #marinescience #marinelife #underwaterphotography
The legendary rainbow tripod fish ( #Bathypteroisphenax) eventually settles on the seabed and lives its life sitting on its fintips above the silty abyssal plane. In its larval form is is one of the most stunning fish we see on our #blackwater dives. #deepsea #marinelife
May 30, 2025 at 4:37 PM
The legendary rainbow tripod fish ( #Bathypteroisphenax) eventually settles on the seabed and lives its life sitting on its fintips above the silty abyssal plane. In its larval form is is one of the most stunning fish we see on our #blackwater dives. #deepsea #marinelife
A #blanketoctopus (genus #tremoctopus) three ways. The little bubbles on each of her back suckers are pieces of siphonophore that it tears off to use as a “spicy” stinging shield. #marinelife #plankton
May 6, 2025 at 12:30 PM
A #blanketoctopus (genus #tremoctopus) three ways. The little bubbles on each of her back suckers are pieces of siphonophore that it tears off to use as a “spicy” stinging shield. #marinelife #plankton
Christmas tree worms extend their spiraled feeding crowns, while a spinyhead #blenny peeks from its burrow in front of one—two tiny reef icons sharing the same real estate in #PuertoRico. Life on the reef is small, colorful, and endlessly intertwined. #marinelife
April 18, 2025 at 4:39 PM
Christmas tree worms extend their spiraled feeding crowns, while a spinyhead #blenny peeks from its burrow in front of one—two tiny reef icons sharing the same real estate in #PuertoRico. Life on the reef is small, colorful, and endlessly intertwined. #marinelife
This longsnout seahorse (hippocampus reidi) has been taunting me by hiding inside of hydroids for my last few visits, but I finally found him puttering about at night. I love how striking they are compared to the typical lined seahorses. #seahorse #sygnathid #marinebiology #marinelife #ocean
March 16, 2025 at 2:25 PM
This longsnout seahorse (hippocampus reidi) has been taunting me by hiding inside of hydroids for my last few visits, but I finally found him puttering about at night. I love how striking they are compared to the typical lined seahorses. #seahorse #sygnathid #marinebiology #marinelife #ocean
I was recently challenged by a scientist to image the pharynx of #HermodiceCaruculata, the bearded fireworm. This was my best attempt at playing #fireworm dentist. Imaged using the Nauticam SMC-2, the
most powerful underwater magnifier in the world. #marinelife
most powerful underwater magnifier in the world. #marinelife
February 17, 2025 at 3:25 PM
I was recently challenged by a scientist to image the pharynx of #HermodiceCaruculata, the bearded fireworm. This was my best attempt at playing #fireworm dentist. Imaged using the Nauticam SMC-2, the
most powerful underwater magnifier in the world. #marinelife
most powerful underwater magnifier in the world. #marinelife
For my #plankton lovers I have a few blackwater and larval #marinelife Valentine’s Day cards you can steal for your special someone. #valentinesday #marinebiology 🦑
February 14, 2025 at 1:29 PM
For my #plankton lovers I have a few blackwater and larval #marinelife Valentine’s Day cards you can steal for your special someone. #valentinesday #marinebiology 🦑
February 14, 2025 at 1:20 PM
This is a pelagic #mollusk called a sea elephant and they’ve never known a hard surface in their entire life. What do you think this one’s name is. I think they look like a “Gumbert”
#marinelife #plankton
#marinelife #plankton
February 11, 2025 at 4:42 PM
This is a pelagic #mollusk called a sea elephant and they’ve never known a hard surface in their entire life. What do you think this one’s name is. I think they look like a “Gumbert”
#marinelife #plankton
#marinelife #plankton
At nearly 6 inches long Felimare juliae are one of the biggest nudibranchs we have on the Florida reef tract. This giant has striking aposematic coloration warning predators of its toxic body. #nudibranch #seaslug #scuba #underwaterphotography #marinelife
February 10, 2025 at 2:14 PM
At nearly 6 inches long Felimare juliae are one of the biggest nudibranchs we have on the Florida reef tract. This giant has striking aposematic coloration warning predators of its toxic body. #nudibranch #seaslug #scuba #underwaterphotography #marinelife
Last night we encountered 8 species of #dragonfish larvae will drifting in the Gulf Stream. Goofy as kids, they have a goth glow up as adults. At this stage their digestive tract trails outside of their body for some reason. #marinelife #plankton
February 5, 2025 at 11:05 AM
Last night we encountered 8 species of #dragonfish larvae will drifting in the Gulf Stream. Goofy as kids, they have a goth glow up as adults. At this stage their digestive tract trails outside of their body for some reason. #marinelife #plankton
Nomeus gronovii, or man o’ war fish, share a symbiotic relationship with the Portuguese man o’ war. Partially immune to the venom of the man o’war, these fish can live among the man o’war’s tentacles and feed on them. This particular one hit me in the head while I drifted offshore. #marinelife
February 3, 2025 at 3:37 PM
Nomeus gronovii, or man o’ war fish, share a symbiotic relationship with the Portuguese man o’ war. Partially immune to the venom of the man o’war, these fish can live among the man o’war’s tentacles and feed on them. This particular one hit me in the head while I drifted offshore. #marinelife
This has been my face for the last ten or so days. Pelagic lined seahorse found drifting in the gulfstream. #seahorse #marinelife #grumpy
January 30, 2025 at 3:12 PM
This has been my face for the last ten or so days. Pelagic lined seahorse found drifting in the gulfstream. #seahorse #marinelife #grumpy
Titled “Everything’s A-OK” I am reminded by this bold doctorfish to hold fast with a smile, stay prickly when challenged, and calmly know we’ll make it through. I am pleased to have secured First Place in CUPOTY with this image today. #marinelife #fish #doctorfish #lizardfish
January 24, 2025 at 3:51 AM
Titled “Everything’s A-OK” I am reminded by this bold doctorfish to hold fast with a smile, stay prickly when challenged, and calmly know we’ll make it through. I am pleased to have secured First Place in CUPOTY with this image today. #marinelife #fish #doctorfish #lizardfish
It’s #siphonophore Sunday!!! I believe this is Forskalia formosa and they can pack quit a sting if they bump into the space between my mask and my stache. #marinelife #plankton #blackwater
January 19, 2025 at 1:37 PM
It’s #siphonophore Sunday!!! I believe this is Forskalia formosa and they can pack quit a sting if they bump into the space between my mask and my stache. #marinelife #plankton #blackwater
Recently we were treated to fantastic visibility under Blue Heron Bridge, so much so that I couldn’t help but bring out my wide angle lens (for once!) in the first image we have a big ‘ol 12oz steak size Warty Sidegill slug, Pleurobranchus areolatus. #marinelife #seaslug 🦑 #malacology
January 17, 2025 at 12:44 AM
Recently we were treated to fantastic visibility under Blue Heron Bridge, so much so that I couldn’t help but bring out my wide angle lens (for once!) in the first image we have a big ‘ol 12oz steak size Warty Sidegill slug, Pleurobranchus areolatus. #marinelife #seaslug 🦑 #malacology
Just letting Bluesky know that I am an independent dive guide that specializes is showing all the weird and exotic underwater #urbanwildlife you see on my feed to my guests. If you ever want to see the very best critters in Soflo, check out my website in bio. #scuba #marinelife
January 16, 2025 at 3:13 PM
Just letting Bluesky know that I am an independent dive guide that specializes is showing all the weird and exotic underwater #urbanwildlife you see on my feed to my guests. If you ever want to see the very best critters in Soflo, check out my website in bio. #scuba #marinelife
Hot on the heels of naming my #simplifiedseas project I present an image of a lined seahorse from earlier this week. On the shallow seagrass beds, these are the big dogs, effective pipette feeding predators that need to eat almost constantly. #seahorse #white #marinelife #underwaterphotography
January 16, 2025 at 1:04 PM
Hot on the heels of naming my #simplifiedseas project I present an image of a lined seahorse from earlier this week. On the shallow seagrass beds, these are the big dogs, effective pipette feeding predators that need to eat almost constantly. #seahorse #white #marinelife #underwaterphotography
This is kinda different than my normal type of picture, but I enjoyed the reflections made by the manatees against the still spring water. #manatee #reflection #marinelife
January 13, 2025 at 2:19 PM
This is kinda different than my normal type of picture, but I enjoyed the reflections made by the manatees against the still spring water. #manatee #reflection #marinelife
The Mad Manatee’s Mullet Monocle. I had fun swimming with these Potatoes in the springs today. #marinelife #manatee #marinemammal #underwaterphotography
January 12, 2025 at 4:33 AM
The Mad Manatee’s Mullet Monocle. I had fun swimming with these Potatoes in the springs today. #marinelife #manatee #marinemammal #underwaterphotography
The orange cup coral was first observed in Puerto Rico in 1943, scientists believe these corals first made their way to the Western Atlantic from the indo-pacific by hitching a ride and spawning along the way inside of the ballast water on ships. #invasivespecies #coral #marinelife
January 10, 2025 at 8:24 PM
The orange cup coral was first observed in Puerto Rico in 1943, scientists believe these corals first made their way to the Western Atlantic from the indo-pacific by hitching a ride and spawning along the way inside of the ballast water on ships. #invasivespecies #coral #marinelife
The #Atlantidae is a group of planktonic gastropods, which all demonstrate a strong adaptation to pelagic life. I love them because they endlessly flap those lil wingys (part of its mantle) and have funny googly eyes. #marinelife 🦑 #plankton #blackwater
January 8, 2025 at 2:05 PM
The #Atlantidae is a group of planktonic gastropods, which all demonstrate a strong adaptation to pelagic life. I love them because they endlessly flap those lil wingys (part of its mantle) and have funny googly eyes. #marinelife 🦑 #plankton #blackwater
Most divers need to fly to Indonesia to find the legendary Leaf Sheep/Shawn the sheep/Eyespot Costasiella, but we have a population living in a ditch on the side of the road right here in South Florida. #marinelife 🦑 #seaslug #sacoglossa
January 6, 2025 at 6:17 PM
Most divers need to fly to Indonesia to find the legendary Leaf Sheep/Shawn the sheep/Eyespot Costasiella, but we have a population living in a ditch on the side of the road right here in South Florida. #marinelife 🦑 #seaslug #sacoglossa
For my #newyearnewnudi contribution here is Plocamopherus lucayensis. Fun fact these guys will blink with (very weak) bioluminescence if I disturb their bryozoans home. #nudibranch #marinelife #underwater #🦑
January 2, 2025 at 1:58 PM
For my #newyearnewnudi contribution here is Plocamopherus lucayensis. Fun fact these guys will blink with (very weak) bioluminescence if I disturb their bryozoans home. #nudibranch #marinelife #underwater #🦑
As the temps finally drop here in Florida, the Manatees move into their winter homes here in the springs. Happy #Manatee season! #marinelife 🦑 #marinemammal
December 30, 2024 at 3:56 PM
As the temps finally drop here in Florida, the Manatees move into their winter homes here in the springs. Happy #Manatee season! #marinelife 🦑 #marinemammal