Marine Hermit Crabs

Horseshoe crabs, marine arthropods known for their horseshoe like shells have been roaming the Earth long before the dinosaurs. These living fossils only inhabit the Eastern Shore and can be found on Delaware beaches such as the Delaware Bay, but these living relics may be in for extinction. Due to this exact reason Delaware has begun studying and protecting these species. Horseshoe crabs are vital to the Delaware Bay ecosystem,

In the oyster reefs three different categories of species could be defined: Reef residents are those species which use the reef as their primary habitat; facultative residents are those species generally associated with structure habitats, and finally transient species are those species which forage or may forage on or near the oyster reef, consider as a wide-ranging. (Coen et al. 2000)

Where Found: In North America along the Atlantic and Gulf coasts from Maine to Mexico.

Have you ever taken a vaccine or medication? Well, the vaccine or medication that you took has most likely been tested by horseshoe crab blood that was drawn from horseshoe crabs. We should interact with horseshoe crabs even though they are a keystone species because we can use their benefits and also help them too. Some ways that we can preserve their species and simultaneously gain benefits is by flipping them over when they are stranded, chitin, and helping them rebuild their breeding habitats after human causes or natural causes such as tornados, and hurricanes.

The Atlantic Horseshoe Crab is an amazing a unique animal. Despite it 's name it not really a crab. It is actualy more colsly related to spiders, ticks and scorpians. It is in the Animalia kingdom and is in the Arthropoda phylum. It 's most common name is the Horseshoe Crab but it 's scientific name is Limulus polyphemus. The Horseshoe Crab is not just found in Cape Cod, it is also found along the northern Atlantic coast and up the Gulf of Mexico.

The Chrysaora quinquecirrha or commonly known as the Sea nettle is found in the Atlantic, Indian Ocean, Western Pacific, Southern England waters, even in the United States, and some parts in Brazil. The Sea Nettle is classified in the kingdom Animalia.

The relationship between Trapezia Crabs and Pociollopora coral on the reefs of Rottnest Island is an example of mutualism as both of species benefit from the interaction with the other organism. The Trapezia Crabs, often called ‘coral crabs’ live amongst the branches of coral and feed on the nutrient-rich mucus it produces, but does not induce any harm on the coral. In return, the crabs provide a form of protection for the coral from many of their predators, and would actively defend the coral from sea stars such as the Crown of Thorns (Acanthaster planci) which is a major treat to the coral. Therefore, the Trapezia crabs and Coral are an example of a mutualistic relationship.

The deep sea jellyfish for example, are just as fascinating as the zombie worms. They live about 820 meters below the surface of the ocean (Jonssen). They do almost nothing, besides eating, swimming, and living.

Horseshoe crabs (limulidae) play a major role in our ecosystem, health studies and basic lives; which is why there are many ongoing conservation programs for this species and the bays where they come ashore to lay their eggs.

Oil explorations and oil spills are posing serious threats to polar species, resulting in severe risks to both marine and terrestrial ecosystems and wildlife. Polar bears, the chief predators in the Arctic marine ecosystem, are affected by exposure to oil followed by oil spills. Even though oil pollution and the ratio of spills in the Arctic are on a low level at present, during 1993 to 2007, many oil spill incidents were reported, most of which were the consequences of extreme collisions, groundings, and sinking accidents, leading to long-term consequences to polar species, and even a chance of extinction for polar bears. While there are no tested and operative

Your book, When the Tide Goes Far Out, conveyed much information about tides. Now I know one difference among a meal tide and a spring tide. A spring tide is higher. I said to Mr.Pitts,"Some students wondered if tides were related to the swaying of Earth in space?" He said,"No, tides mainly result from the Moon's gravitational pull on Earth." During our last two summer holidays, my sister and I took a trip to Nova Scotia, Canada. The greatest tides in the world, we heard, are in the Bay of Gundy between Maine and Canada. Last Tuesday, Mr.Pitts explained that at low tide water retreats, uncovering many fascinating sights. He said,"You can see crabs, starfish, urchins, clams, and many varieties of seaweed. "A hermit crab, for example, employed

varied fields of study involving the ocean and the life teeming within it. Marine biology is

Imagine a world with no Arctic ice cap, no Arctic animals, and no Arctic ecosystem. Climate change, which is also known as global warming, is taking a toll on the Arctic ecosystem and endangering many different animal species and wildlife living in the Arctic. To understand why the Arctic animals as well as the Arctic ecosystem is threatened, an understanding of climate change is needed. By definition, climate change is the rise in average surface temperatures on Earth, mainly due to the burning of fossil fuels (coal, oil, and natural gas) and secondarily the clearing of land, resulting in a rise of atmospheric carbon dioxide (CO2) levels or also known as “the greenhouse effect” (Dunbar). Evidence has shown that there is a distinct correlation

Various observations European eel life history should be describe not as truly catadromous, but "facultative or semi catadromous". Due to fact that European eel were found in different waters such as freshwater,brakish and coastal,and freshwater phase is not be a essential part of their life history, could not make them not truly catadromous species.(18)

Geographical range and habitats: The geographical range of Dungeness crab extends from Alaska's Aleutian Islands to Point Conception, California. They inhabit eelgrass beds and are usually found on sandy or sand-mud bottoms. Dungeness crabs generally prefer cooler northern