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#marinemammal

1 post1 participant0 posts today
Public *
MikeF

Some birds and beasts seen at Pt. Lookout, NY, yesterday on a very cold day!

These are:
Harbor Seal:
This individual popped up three times to check me out on the jetty I was taking pictures from.

Red-throated Loon

A pair of male Common Eiders

King Eider:
Well, it would be a Queen Eider, in this case. Eiders are large diving ducks (although they will sometimes feed at the surface like dabblers). King Eiders nest in the far reaches of the north. The migrate down the coasts, but are not common in our area. And, they are threatened by climate change, fossil fuel extraction and other human impacts. I was hoping to see this bird, and lucked out. I just realized the way I cropped the image, it looks like the two ducks in the foreground are sitting in a movie theater watching a movie on the Big Screen 😆

Harbor Seal sticks its head up near a jetty. "Harbor seals are brown, silvery white, tan, or gray, with distinctive V-shaped nostrils. An adult can attain a length of 1.85 m (6.1 ft) and a mass of up to 168 kg (370 lb)." (Wikipedia)
Male Common Eiders. "A large, heavyset sea duck with a distinctive long, sloping frontal lobe of the bill that extends almost to the crown. Breeding males are mostly white above and black below, with a black cap, pale green on the nape (back of neck), and green to yellow-orange bill. Immature and nonbreeding males are chocolate brown with variable white on the breast and back. Females are warm brown with dense blackish barring and black bill." (AllAboutBirds)
Female King Eider (Queen Eider?) hanging out with other sea ducks. "A heavyset duck with short, thick neck, rather large rounded head, and fairly short but heavy bill. Adult males have a large plate above the bill that creates a bulge in the forehead. Females have a graceful sloping transition between forehead and bill. Adult males are pale on the head and neck and mostly black on the body, with a large orange plate above the red bill. The crown is tinged blue-gray and the face is greenish. The back, underwing, flank and upperwing are white. Adult females are rich rusty brown intricately patterned with black. The cheek and neck are paler brown and the bill is black. Immature males are dark brown with a white chest and orange bill." (AllAboutBirds)
Non-breeding Red-throated Loon. "A large ducklike [not really, but that's what AllAboutBirds says...] seabird with long, sinuous neck, a thin but daggerlike bill, and long, narrow, pointed wings. The legs are set far back on the body and the feet trail behind the tail in flight. Breeding adults are grayish brown above, pale below, with pale gray neck, rusty throat patch, and thin black-and-white stripes on back of neck and sides of breast. Nonbreeding adults are blackish above and white below, with a sharp border along the neck and a mostly white face with a black gab. Immatures are grayish brown above, pale below." (AllAboutBirds)
#nature#NaturePhotography#birds
Public
webcubus

Headed out with Cape Ann Whale Watch to see what was happening up at Jeffreys Ledge. We hung around one large finback whale (which was very cool to see), but otherwise we didn't see much. Fortunately, on our way back we caught up with a pod of Atlantic White-sided Dolphins! They must have been on the hunt because the small group was zipping around in seemingly every direction. I lucked out and got this shot as the dolphin broke the surface.

An Atlantic White-Sided Dolphin with a dark gray dorsal region and lighter thick stripe across the middle breaks the surface of the ocean
#dolphin#NewEngland#photography
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Ms. Que Banh

So far, eight females from two #seal colonies have filmed almost 90 hours of footage across more than 500km, helping #scientists to #map 5,000 sq km of #habitat. The #SeaLions have mapped rocky reefs and seagrass meadows along the continental shelf, and shown humans the places that are important to them.

With that information, #conservationists will have much clearer ideas on how to protect the country’s only endemic seal.

Goldsworthy, of the South #Australian #Research and Development Institute #SARDI, has been studying the fast-disappearing #MarineMammal for 25 years. But he says the cameras are a gamechanger.

“Information has been so elusive, because they’re feeding at the bottom of the sea,” he said. “Now we get this amazing, exquisite detail. They’re giving us a window into their world that we haven’t had before.

“Just like humans know our streets, the sea lions know the sea bed in intimate detail for hundreds of kilometres and they build up this knowledge over time. They have a mental map of their environment and they are leading you to places of profound significance for them.”

amp.theguardian.com/environmen

The Guardian · ‘Best slow TV ever’: scientists mount cameras on endangered sea lions to map Australia’s ocean floorBy Graham Readfearn
#wildlife#MarineScience#MarineBiology
Public
Benjamin Carr, Ph.D. 👨🏻‍💻🧬

#Mexico expedition sights only 6 to 8 #vaquita #porpoises, the most endangered #marinemammal
Last year, experts on a sighting expedition estimated they saw from 10 to 13 of the tiny, shy, elusive porpoises during nearly two weeks of sailing in the #GulfOfCalifornia, also known as the #SeaOfCortez. More troubling, no baby vaquitas were seen this year by the conservation group #SeaShepherd phys.org/news/2024-06-mexico-s

Phys.org · Mexico expedition sights only 6 to 8 vaquita porpoises, the most endangered marine mammalBy Science X
Public
Benjamin Carr, Ph.D. 👨🏻‍💻🧬

#US #Navy Tried to Turn #Whale Songs Into Secret Code
In 1959, the Navy Electronics Laboratory got to work on the concept as part of #ProjectCombo. The work centered on the understanding that certain #marinemammal sounds and vibrations they generated might travel over very long distances #underwater. More importantly, they'd appear so common as to go unnoticed by enemy. #ColdWar project as an ingenious but overly complicated method for #submarines to send covert messages.
twz.com/8778/the-u-s-navy-trie

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