FC: StingRay | ByAndrew Hast Period 3 May 12
1: Trivia/Facts | The scientific name of a stingray is Dasyatis pastinica.They are related to sharks like the shark they do not have bones. Instead they are made of cartilage. Their fins are the same length as their bodies. Stingrays have tails that are made for defense. Some kinds of stingrays have a sharp spine in their tail with a very sharp point and edges that are teethed kind of like some knives. It is a carnivorous animal
2: Habitat | They live in the light brown areas. Usually located in more shallow parts of the ocean.
3: Adaptions | The sting ray has developed a defense on the end of the tail. At the end of the tail is a almost spine type thing that when it enters the body of another organism it oozes poison. This poison is deadly enough to kill a human. It has also developed camouflage. When the reflection of the sun hits it if blends the creature so that it looks like the sand at the bottom of the ocean.
4: Behavior | This nocturnal animal has now chosen to feed during the day and grow larger than usual because of so much human activity. This is usually only in really famous touring spots so its not grown to be that big of a deal yet.
5: Niche | Stingrays use the coral reefs to get food. It uses the sand to stay camouflaged so it can get the prey and it also uses shad from rocks to camouflage itself. But this is usually the darker ones that use the rocks.
6: Environmental Needs | Abiotic: Water temperature, underwater pressure, they eat more than the stingrays, acidic waters make calcareous shells thinner this happens due to dissolving, nutrient levels, contaminate levels, light intensity or light radiation how much light gets to their habitat. Biotic: They feed on mollusks, crustaceans, so if one of those species died the stingrays population would likely dramatically decrease
7: Relationships with other organisms | The stingray is a predator to the mollusks and crustateans. The stingray is prey to sharks that are bigger than the stingrays.
8: A stingray eats shrimp, clam, mussels, and other fish. Something that eats it would be sharks and larger stingrays. | Food Web
9: Life Cycle | The stingrays embryo feed on yolk, then they get more nourishment from the mother by absorption of uterine fluid filled with mucus, fat or protein through specialized, by the mother, nutrients.
10: Population | There is over a half of a million in of them in the world. Because of our actions we are depleting the amount. By going to their feeding ground in south America.
11: Bibliography | http://kids.nationalgeographic.com/kids/animals/creaturefeature/stingray/ http://marinelife.about.com/b/2009/04/12/humans-disturbing-stingray-behavior-in-cayman-islands.htm http://animals.nationalgeographic.com/animals/fish/stingray/