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Atlantic Horseshoe Crab Research Paper

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The Atlantic horseshoe crab carries out circulation in order to transport nutrients, oxygen, and carbon dioxide throughout the body through its blood. According to Bang & Levin (n.d.) the Limulus polyphemus has a semi-closed circulatory system like most arthropods and is cold-blooded. Since the circulatory systems is only semi-closed it still acts the same as an open circulatory system, meaning that blood is somewhat contained in the arrangement of blood vessels. In order for circulation to occur the blood has to go through many different organs in the horseshoe crabs body. The blood goes through the cerebral arteries, heart, pericardial membrane, Ostia, frontal artery, and arterial trunks. Cerebral arteries are the arteries that branch of to the cerebrum of the brain. These are the arteries that make sure that blood is flowing to the brain. The heart is the main organ that makes up the circulatory system. According to R. Robinson the heart serves as a muscular, …show more content…
Both genders of Limulus polyphemus do not reach sexual maturity until they are about nine to twelve years of age (Horseshoe crab, Limulus polyphemus, n.d.) According to Brockmann (1990) the Limulus polyphemus reproduce only for a few hours in springtime during full moon high tides. The female Atlantic horseshoe crab, which is larger than the male, produces infertile eggs in her ovaries. The males will begin searching for females and once they find one they will attach their special claws to the female and cling to them from an hour to a week. Eventually the female will lay her eggs on the shore in clusters of 2,000 to 30,000 eggs per each nest (Horseshoe crab, Limulus polyphemus, n.d.) The male will then disperse his sperm atop the eggs. As stated by Horseshoe crab (n.d.) the females lay an estimated of 90,000 eggs a

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