Lobster

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Lobster

Scientific Classification
Kingdom Animalia Phylum Arthropoda Subphylum Crustacea Class Malacostraca Order Decapoda Family Nephropidae
Subfamilies
Neophoberinae Acanthacaris Thymopinae Nephropsis Nephropides Thymops Thymopsis Nephropinae Homarus Nephrops Homarinus Metanephrops Eunephrops Thymopides

The Lobster was once considered to be a poor man's food, and a dish for little kiddies [1], is now considered a delicious delicacy.

1 Anatomy
2 Reproduction
3 Lobster colors
4 Ecology
5 Gallery
6 Related References
7 See Also

Anatomy

All lobsters are invertebrates with an exoskeleton [2]. They exhibit bilateral symmetry, unless a mutation or mutilation prohibits it from being exhibited (see below) [3]. On the head of the lobster is located antenna, which they use to feel and sense their environment. The head of the lobster is in the thorax section of its body. From the thorax extends the different types of claws (see below). The posterior of the lobster is its tail witch has flippers on the end, on a tasty note this is where most of the meat is when you eat this succulent dish.

Nervous system

Lobsters have a decentralized nervous system [4] that has been compared to that of a grasshopper [5] [6]. Some interesting notes to this nervous system, is that it seems that gradually increasing the temperature will lull the lobster to sleep [7], also when it is turned over on its dorsal side will educe a state of unconsciousness [8]. The two main nerve clusters are located in the head of the lobster.

Animal rights issues: The issue on whether lobsters may feel pain has prompted many animal rights activists to be considered with the ethical treatment of cooking these animals. There have been studies to weather lobsters feel pain, one said yes, while another one released at the same time said no.

Types of appendages

Lobsters have exhibited that they can have their crusher claw on either the right mandible or the left one [9]. The other type of claws are the spinney legs that protrude from the thorax, lobsters from the east coast have a pronged end on there “feet” while spinney lobsters on the west coast taper out to a single point on the end.

Lobster’s antennas pick up the scents of their prey by using the small hairs immersing the four antenna [10].

Appendage deformities: In 1998 lobsters started emerging with gonoped deformities, scientists are yet to discover what is the cause of this mutation [11]. Also science 1800 lobsters have been appearing with claws that look like they have multiple claws rendering out from them [12].

Molting

Main Article: Molting

Molting is an essential part of growing, when the lobster’s biological clock hits a certain time, the process ensues. One of the first physical signs of molting is the chemicals and hormones permeating the lobster on a cellular level, with a multitude of “molting” glands [13]. At first the tail will crack open, very slightly. While different hormones trigger different stages around the lobsters body the crack opens even more. Then the lobster slowly wiggles it’s body form the old shell, it finally wiggles free with in about 8-12 hours [14]. The lobster will go through a rapid growth section until its new shell hardens.

Molting in a trap: Due to a speculated reason, lobsters will begin the molting process with the thorax while in a fishing trap with other lobsters [15].

Reproduction

Lobsters reproduce sexually. It is possible to tell the difference between lobster sexes by checking a pair of legs on the lobsters; females are more feathery, while males are spiny.

This is probably the most in-depth research into lobster mating habits [16], and trying to summarize it just won’t do it justice.

There are some types of fisher men who despite fishing laws will scrub the fertilized eggs off of female lobsters so that they do not have to release them again.

Lobster colors

Lobsters come in a variety of colors, ranging from blue to yellow to multi colored phantoms. But all lobsters turn red when cooked properly. [17].

Ecology

Lobster live in salt water. From tide pools to off of the continual shelf along the bottom of the ocean floor intermixed between rocky crevices and open plains.

Predators eat lobsters. Lobsters eat other lobsters when there is nothing else to eat. But primarily topping the lobsters menu are mollusks, sea urchins, clams, and fish, eel grass and algae.[18].

Humans have turned eating lobsters into an industry. Men have braved the ocean looking for lobsters, to turn in to cash, to by the boats to look for lobsters. The lobsters fishing industry has formed it’s own triangle trade. Science the puritans landed, lobster fishing has been crucial to our trade, and food supply [19]. For an in-depth look of how this anthropod has been entangled in our economy go to "Lobster history".