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Anglerfish

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by

Alexus Arrington

on 3 April 2014

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Transcript of Anglerfish

Humpback Angler fish
Taxonomy
~Kingdom Animalia
~Phylum Chordata
~Class Actinopterygii
~Order Lophiiformes
~Family Melanocetidae
~Genus Melanocetus
~ Species Melanocetus Johnsonii
Habitat
~The Humpback Angler fish dwell mostly in tropical portions of every ocean at depths up to 6,600 feet.
Lifespan
~Angler fish are difficult to capture so the average lifespan is currently undetermined. The longest living angler fish in captivity lived for three years but it is believed that they live less in the wild.
Reproduction Strategy
~All humpback angler fish swim freely until they are approaching adulthood. As the male reaches adulthood it must latch itself onto the rear of a female where it will live out the rest of its life as a parasite to the female. The female angler can get sperm from the male angler whenever needed and can have up to six males attached to her.
~This angler fish is commonly referred
to as the black devil.
Feeding Strategy & Food Sources
~The humpback angler fish is a carnivore. Each female angler has a growth on the top of their head called an esca. The esca is flexible so the angler can move it into any direction in which they wish. They esca lights up so possible prey can see it and swim towards it. An angler fish can eat something twice its size! The male angler fish relies on the female to get food and then the nutrients will pass through into the male's bloodstream.
~The female anglers eat the fish and shrimp that come near them because of their illuminating esca.
Size & Food Chain
~The size of a humpback angler fish can be about 8 inches (20 centimeters) to 3.3 feet (1 meter). It can grow to up to be 110 pounds (50 kilograms).
The exact position of Humpback Angler fish on the food chain is unknown because there is not a plethora of information about that.
By: Alexus Arrington
Predators/ Protection Strategies
~The exact predators to the Humpback Angler fish is unknown but it is assumed that they eat one another.
~The Humpback Angler fish has translucent teeth that are extremely sharp and intimidating. They also stay almost completely motionless as they wait for their prey which helps them to not be noticed by other predators.
El Nino
~During El Nino a huge group of angler fish lie dead on the surface of the ocean. This occurs about every five years because El Nino causes the temperature if the water to change at the surface.
Appearance
~These creatures are normally a dark gray or brown. They each have a large head with an enormous mouth filled with sharp teeth. The female Humpback Anglerfish has a piece of dorsal fin that extends into a piece of luminous flesh. The male Anglerfish is much smaller than the female and has no need for a dorsal spine.
Impact on Humans
~The Humpback Anglerfish does not have a large impact on humans. Humans in north-western Europe, Africa, eastern North America, and the Far East fish for these commercially. The tail meat is used in a variety of exotic recipes. t is actually a delicacy in Japan and Korea. Apparently Anglerfish tastes similar to a lobster and obtain a similar texture.
Digestive System
~The food goes into the stomach and then from there the stomach releases hydrochloric acids and digestive enzymes to break up the food. Then it passes through the intestines. After the nutrients are taken and put into the body and the food becomes small enough, it is excreted from the body.
Works Cited
Male Anglerfish
Female Anglerfish
~On separate piece of paper
Full transcript