Marine Life with Brenda

The Napoleon wrasse  The Napoleon wrasse or humphead wrasse ( Cheilinus undulatus ) is a large wrasse species found in the Indo-Pacific region primarily on coral reefs. It is a large coral reef fish with a prominent bulge on its forehead (growing over six feet long). Some live to be older than 30 years. They wander in search of hard-shelled preys such as mollusks, starfish, or crustaceans across coral reefs.  Humphead wrasses are protogynous hermaphrodites, like most wrasses, meaning they can act as members of both sexes throughout their reproductive lives and start as females. They may convert to males later in life but not all individuals can change in some species. Scientists are still researching the exact queues which cause this incredible transformation.

Why can't we drink sea water Aside from the fact it doesn't taste so well, it's a terrible idea to drink saltwater because it causes dehydration.  Seawater is harmful to humans, since the body can not get rid of the salt from seawater. Through making the kidneys generate urine, the body naturally gets rid of extra salt, so it requires fresh water to dilute the salt in your body so that the kidneys can function properly.  Seawater can be desalinated to reduce the amount of salt to where it should be palatable, but the process is very energy-intensive.

Short-nosed unicornfish The unicorn fish is one of my favourite types of fish. I remember that one day when I was volunteering at the National Marine Aquarium and was talking to people about the coral and the Great Barrier Reef tank, I mentioned that I loved the unicornfish, however a bilingual girl told me that they are not called that in Russian. Hahaha. Their name in Russian is "Короткошерстный единорог" (sorry if my Russian is wrong) but the point is their name is not unicornfish alright!? Well at least their Latim name has something to do with it they are called Naso brevirostris (Naso, nose you get it?) and can be found in the Indian and Pacific Oceans.  The unicornfish dwells in midwaters along steep outer lagoon, in drop-offs from the rocky shore and seaward reef, and prefers water temperatures ranging from 22.4 to 29 °C.  This species is listed on the IUCN Red List of Threatened species as "least concern," and there are no declines reported as a ...