How Fish Swim Essay

How Fish Swim Essay

Length: 745 words (2.1 double-spaced pages)

Rating: Better Essays

Open Document

Essay Preview

Water and all forms of water travel have long fascinated man. With his fascination and the realization that humans are ill-suited for water travel that doesn't involve remaining on the surface, an appreciation for a fish's ability to move in three dimensions with relative ease was also devloped. Although we may not fully understand the physics involved how fish swim, it is obvious from the fascination and the breadth of reseach that it will remain a goal of the modern sicientist.

A fish's ability to propel itself efficiently through water is paramount to its likelihood to succeed. But before a fish need worry about any of the complications associated with moving through water (hydrodynamic drag, turbulence, buoyancy, etc.) it must first solve the problem of locomotion. The most common method for solving this problem is by muscle contraction and relaxation.

The forward thrust force is created by movement of the caudal (tail) fin and varying amounts of the surrounding muscle (up to the entire body for fish that swim similar to eels) in an undulating motion. The importance of this mechanism manifests itself in the fact that 80% of a fish's body is composed of muscle used for propulsion and maneuvering.

Since fish live in an environment in which they need to move in three dimensions, buoyancy plays a significant role in determining a fish's ability to swim efficiently. Fish use a couple of different strategies to solve this problem. Denser fish use their pectoral fins to create dynamic lift, similar to planes and birds. As these fish swim, their pectoral fins are positioned in such a way as to create a difference in pressure which allows the fish to maintain a certain depth. The two major drawbacks of ...


... middle of paper ...


... Anjem and Marko, John. University of Illinois, Chicago. Department of Physics
http://www.uic.edu/classes/phys/phys461/phys450/MARKO/N004.html

Smits, A. "Drag of Blunt and Streamline Bodies" Princeton University. Department of Engineering
http://www.princeton.edu/~asmits/Bicycle_web/blunt.html

Moore, Bobby and Warren, Michael. "The Bouyancy of Fish and the Physics Behind it"
http://kingfish.coastal.edu/physics/projects/2000_fall/fish/

Tu, Xiaoyuan. "Structure of the Dynamic Fish Model". University of Toronto
http://www.dgp.toronto.edu/people/tu/thesis/node50.html

Need Writing Help?

Get feedback on grammar, clarity, concision and logic instantly.

Check your paper »

Box Jelly Fish known as Cuboza Essay example

- Box Jelly fish is a special type of jelly fish. It is also known as Cubozoa. The scientific for this particular organism is Chironex fleckeri. These jelly fish look really beautiful and elegant but they are very lethal.They are extremely dangerous organisms. They have the ability to instantly stun or kill their prey.Their tentacles have certain toxins that manipulate the organisms nervous system and shut it down that does not allow the organism to breathe properly and as a result of which the organism chokes and dies....   [tags: Jelly Fish, Species of Fish]

Better Essays
1721 words (4.9 pages)

Essay about Evolution Of Fish During The Devonian Era

- 1. Give a brief overview of the evolution of fish. Fish were amongst the first known chordates about 500 million years ago. Therefore, they have a very elaborate and complicated evolutionary history. The first type of fish to appear during the Ordovician era were called Ostracoderms. They had their head and flanks covered with a bony armor while they had a cartilaginous back. The shield was used to keep off predators. The extinction of the Ostracoderms during the Devonian period saw the emergence of Placoderms....   [tags: Shark, Fish, Chondrichthyes, Vertebrate]

Better Essays
735 words (2.1 pages)

Physics and Fish Bioenergetics Essays

- Welcome to the world of fish physics. Many of us understand basic fish behavior and can reach logical conclusions about where the best place to throw a fishing line is. But when we don’t think much further than that we are missing out on some very interesting details of fish behavior. We can never fully understand why we find some fish in one location and some fish in other locations until we consider the concept of fish bioenergetics. Ultimately, fish behavior is a product of bioenergetics....   [tags: physics fish bioenergetics]

Better Essays
2076 words (5.9 pages)

The Story of Belial the Fish Essay

- TAP. TAP. It is a funny thing about fish. They are often thought to be stupid and pointless creatures. For example, I once asked my mother-in-law why she had not left any plants or toys in her fishbowl for her clownfish to explore. “Well what is the point?” she told me. “Fish only remember things for three seconds anyway.” Then she smiled smugly as if she was the world expert in the cognitive abilities of fish. I have since learnt to ignore the mad nattering of my mother-in-law, fish are actually one of the most clever and fascinating creatures in the world....   [tags: fish, memories, death]

Better Essays
611 words (1.7 pages)

Elizabeth Bishop’s “The Fish” Essay

- “The Fish,” written by Elizabeth Bishop in 1946, is perhaps most known for its incredible use of imagery, but this analysis does not merely focus on imagery. Instead, it is based on a quote by Mark Doty from his essay “A Tremendous Fish.” In it he says, “‘The Fish’” is a carefully rendered model of an engaged mind at work” (Doty). After reading this statement, it causes one to reflect more in-depth about how the poem was written, and not just about what its literal meaning lays out. In “The Fish,” Bishop’s utilization of certain similes, imagery in the last few lines, narrative poem style, and use of punctuation allows the audience to transport into the life of the fish; therefore, allowing...   [tags: Literary Analysis, The Fish, Elizabeth Bishop]

Better Essays
961 words (2.7 pages)

Benefits Of A Sectional Swim Meet Essay

- Waking up at 4:30 every morning during the summer to practice, constantly smelling like chlorine, and spending your weekends at swim meets; that is what it takes to make Sectional cuts. The Sectionals swim meet that I attended this summer was payoff from all the hard work I put in every morning during the summer. The University of Missouri in Columbia, Missouri, was where Sectionals was hosted, and also one of my first college visits. The Sectional swim meet was awesome not only because I got to swim in a very elite meet for only the fastest midwestern swimmers; but also because the hotel we stayed at during the trip, and my tour of the University of Missouri....   [tags: Rooms, Bedroom, Midwestern United States]

Better Essays
993 words (2.8 pages)

Fish Life in the Sea Essay

- “In the creation of the heavens and earth, and the alternation of the night and day, and the ships which sail the seas to people's benefit, and the water which Allah sends down from the sky - by which He brings the earth to life when it was dead and scatters about in it creatures of every kind - and the varying direction of the winds, and the clouds subservient between heaven and earth, there are Signs for people who use their intellect.” (Surat al-Baqara: 164) Fish are one of Allah’s mighty creations on this world....   [tags: ichthyology, biology]

Better Essays
868 words (2.5 pages)

Fish and Humans: Homologus Structure Essay

- Humans and fish are not closely related on the outside appearance. Most people would not see how we can share the same features with fish, but scientists do know that these two species share homologous features. Homologous is being in similar structures, and having similar genes indicate species are from a common ancestor, but does not have indicated that these features will work exactly the same. Humans and fish are related in the lineage of chordate because human shared homologous features to fish....   [tags: appearance, bones, fins]

Better Essays
1007 words (2.9 pages)

Reconstruction of Fish Passages Essay

- Introduction The assignment of this study is to understand the fish passage failure, to give informed information to design or manage operational changes that can increase fish pass efficiency and the sustainability of fish species. Mechanisms of fish pass failure, such as structure, environment and behavior factors can be a detriment in aiding passage structures as well as a benefit. Without the reconstruction of a fish pass, the juvenile elves become isolation in turn imposes elves’ distinction....   [tags: Marine Environment, Aquatic Science]

Better Essays
1793 words (5.1 pages)

Artificial Fish: AUVs Designed to Model Animals Essay examples

- Artificial Fish: AUVs Designed to Model Animals Humans venture beneath the ocean's surface to collect resources, conduct research, engage in warfare, and perform countless other tasks. The need for increasingly specialized technology to accomplish these tasks has prompted the development of many different designs of submersibles, varying from manned nuclear submarines to Remotely Operated Vehicles (ROVs) dragged behind surface ships, to untethered Autonomous Undersea Vehicles (AUVs) (Blidberg 1)....   [tags: Autonomous Undersea Vehicles Fish Essays]

Free Essays
1462 words (4.2 pages)