This “barnacle zone” is the highest of the intertidal zones. … Although they may look like mollusks with their shell-like covering, barnacles are actually crustaceans, related to lobsters, crabs and shrimp. They look like tiny shrimp in their larval stage, where they swim as members of zooplankton in the ocean.
Barnacles often live on whales, crabs, rocks, boats and sea turtles. While a few species of barnacle are parasitic, most barnacle species are harmless to other animals. They filter feed food particles out of the water and do not harm the animal they live on.
Cuts and scrapes from sharp-edged coral and barnacles tend to fester and may take weeks or even months to heal. Granulomas can form if debris from the original wound remains in the tissue.
Seb-Ks usually start to appear as slightly raised, skin colored or light brown spots. With time, they start to thicken and develop a rough, waxy, scaly, warty texture. They appear to stick on to the skin like barnacles do on the bottom of boats (hence the layman’s term Skin Barnacles).
Barnacles secrete hard calcium plates that completely encase them. A white cone made up of six calcium plates forms a circle around the crustacean. Four more plates form a “door” that the barnacle can open or close, depending on the tide. When the tide goes out, the barnacle closes up shop to conserve moisture.
They have a wide range of body plans, but one of the most bizarre is the rhizocephalan barnacle, which is an internal parasite in other crustaceans. They infiltrate and spread within the body of their host and even alter its behavior and appearance.
Living upon the back of a Gray Whale means they are free from attacks by the most common enemies of the various barnacle species. Stationary barnacles are regularly attacked and eaten by sea stars (starfish), sea cucumbers, some sea worms, as well as various snails and whelks.
The carapace and plastron of the turtle are soft, and this is a small and fragile animal, by forcibly removing the barnacles this can cause not only external damage but internal damage too.
Although they have been found at water depths to 600 m (2,000 ft), most barnacles inhabit shallow waters, with 75% of species living in water depths less than 100 m (300 ft), and 25% inhabiting the intertidal zone.
Seborrheic keratoses are typically tan or brown, but can vary in color. They are thick and can have a warty or waxy texture, often referred to as the “skin barnacles,” referencing their appearance to barnacles stuck on a boat. Their size can be a fraction of an inch to larger than a half-dollar.
The neuropil of the brain includes protocerebral and deutocerebral divisions, with nerve roots from the protocerebrum extending to the eyes and frontal filaments, and nerve roots from the deutocerebrum extending to the first antennae (antennules) and cement glands.
Barnacles stay on gray whales for as long as they are alive. Barnacles depigment the skin when they attach themselves to the whale. … To get rid of the whale lice, whales rub themselves along the sea bottom or breach. Gray whales feed on bottom sediments and scrape off barnacles and whale lice as they feed.
It causes nausea, vomiting and diarrhea if sufficient amounts are ingested with raw seafood—-especially oysters and it can cause rapidly developing skin infections in wounds exposed to contaminated water. Most infections are mild, but even they can also lead to tissue destruction and large blister formation.
Most seborrheic keratoses do not cause any symptoms and do not require treatment, however, many people are bothered by their cosmetic appearance and want them removed. The growths should not be scratched off. This does not remove the growths and can lead to bleeding and possible secondary infection.
Blisters may form under the growth that dry into a scablike crust. The keratosis usually falls off within a few weeks. No mark is usually left, although occasionally there may be a small dark or light spot. These will fade over time.
A seborrheic keratosis is removed only if it bothers you. The doctor will freeze it or scrape it off with a tool. The doctor can also use a laser to remove a seborrheic keratosis. Treatment usually results in normal-looking skin, but it can leave a light or dark mark or even a scar on the skin.
A seborrheic keratosis usually looks like a waxy or wartlike growth. It typically appears on the face, chest, shoulders or back. You may develop a single growth, though multiple growths are more common.
A seborrheic keratosis is a noncancerous (benign) growth on the skin. It’s color can range from white, tan, brown, or black. Most are raised and appear “stuck on” to the skin. They may look like warts.
Most forms, however, are spread by casual skin contact or through shared objects, such as towels or washcloths. The virus usually spreads through breaks in your skin, such as a hangnail or a scrape. Biting your nails also can cause warts to spread on your fingertips and around your nails.
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