Brine Shrimp

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Zoology
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Brine Shrimp

The 6 Core Ideas of Biology: Brine Shrimp (Artemia) By Alyssa Domenico and Samantha Little

Interdependence is when two organisms rely on each other's existence to survive. ~The brine shrimp feed on these microscopic algae to survive. The microscopic algae depend on the brine shrimp to produce carbon dioxide in order to make food.

The transfer of energy and matter focuses on the way energy is transferred from one trophic level to another and how matter is recycled. ~This relates to brine shrimp because it is the primary consumer of its food chain. Microscopic algae/producers (100% energy) > Brine Shrimp/primary consumer (1% energy) > Birds/secondary consumer (0.1% energy)~The way brine shrimp transfers matter is through reproduction. Brine shrimp male inserts his sperm (DNA) into the female’s egg (DNA) -> sperm fertilizes egg -> egg is released as an embryo -> embryo matures into an adult shrimp -> shrimp creates offspring with his/her DNA

Interdependence

Transfer of Energy and Matter

The idea of systems are that a set of components that individually function by themselves but work together to form a functioning system. Factors of a system are: interdependent parts, inputs and outputs, driving force, emergent property, and subsystems.

Systems

Organisms are made up of particular structures which allow them to carry out their function. Structure and function relates to brine shrimp because they are created for swimming and their bodies have special functions which allow them to swim. Humans are structured in such a way that allows them to live on land. Organisms are structured in a certain way which allow them to live in a particular environment and carry out specific tasks.Evidence: ~In our experiment, we observed that brine shrimp move by beating their limbs in a rhythm . They move differently from regular shrimp who pull their abdomens in towards their bodies which shoots them through the water. ~We also observed that brine shrimp have compound eyes set on stalks. Their eyes help them to detect fast movement which is useful when a predator is trying to eat them.Examples: ~Brine shrimp have special gills which help them to cope with the high salt content in the lakes. Their gills “absorb and excrete ions as necessary and produce a concentrated urine from the maxillary glands”. (http://animaldiversity.ummz.umich.edu/accounts/Artemia_salina/)~Brine shrimp use their limbs to direct food into their mouths. They obtain food by scraping algae off rocks using their limbs or grazing on the bottom of the seabed.

All living organisms are similar at the molecular level even though life takes a huge variety of forms. Unity and diversity relates to brine shrimp because all living things came from the same origin which makes them alike. However, at the same time, organisms are all very different. Example: Brine shrimp and a human have a lot of similarities. How someone might ask? They are two very different species! For starters, they are both alive. They both display the characteristics of life which classify them as living. Brine shrimp and humans share a similar DNA. Humans and animals all share a similar DNA because they came from the same origin millions of years ago. Evidence: In our experiment on the Characteristics of Life, we looked at the differences and the similarities between a flame and a turtle and what classified them as living things. The turtle displayed all of the characteristics of life and we classified it as living. The flame, however, was not alive but it still required energy, it grew and it reproduced. Like the turtle, brine shrimp display all of the characteristics of life and share similarities between the flame. ~A brine shrimp needs food such as algae for energy while fire requires oxygen, carbon dioxide and nitrogen for a flame to form.~If both the brine shrimp and the flame are fed consistently and have proper conditions, they will grow. ~A flame does not reproduce by performing intercourse like humans and most animals do, but instead it can clone itself. For example if you move a lit candle over an unlit candle, a new flame will form on the unlit candle.~Brine shrimp are animals that can reproduce without having sexual intercourse. Female shrimp release developing embryos into the water and if the conditions are good they begin to develop. If the conditions are not ideal, the females release dormant cysts which only begin to develop when conditions improve.

Regulation is when an organism adjusts its behavior to adapt to different conditions to what its used to. Homeostasis is a major part of regulation. It is the process of keeping your body regulated and maintaining a stable internal environment. Homeostasis deals with negative and positive feedback. Negative feedback is is a process that occurs when your body has to completely stop or slow down a process that is happening. Positive feedback is when your body encourages a process or “activates mechanisms which increase the change”. (http://www.biologyreference.com/Ho-La/Homeostasis.html) Regulation relates to brine shrimp because brine shrimp, like all living things, must maintain homeostasis in order to stay alive. Evidence:~In our experiment, we observed that brine shrimp react negatively in cold water.~The shrimp huddled together at the bottom of the beaker.~They moved slowly in the water to try to keep warm and stay alive~The shrimp’s ability to regulate its body temperature in different environments to what it’s used to, is an example of negative feedback. In order to stay alive when the temperature drops and the body gets cold, the body has to regulate its temperature through a series of actions.

Regulation

Unity & Diversity

Structure & Function

Interdependent PartsOuter Layer - impermeable to water. Unicellular Glands - to control the amount of protective coating surrounding the embryo Antennae - one set develops into muscular graspers and the other develops in sensory antennaeGills/"Branchia" and Neck Glands - pumps the salt out of the waterThree types of Hemoglobin - concentration increases as salinity does

Inputs and Outputs 1. When shrimp inhale they take in the water they use the oxygen and release carbon dioxide back into the water. 2. When a female brine shrimp has sperm inserted into her and her eggs are fertilized, the eggs are released as embryos or dormant cysts if the environmental conditions are harsh. 3. When brine shrimp feed on microscopic algae, they recieve 10% of the energy from the algae. They then are able to transfer 1% to the next trophic level.

Subsystems Digestive/Feeding System - allows the shrimp to receive energy Reproductive System - allows the shrimp to create offspring

Driving Force The brine shrimp feed on microscopic algae such as dunaliella, cyanobacteria, and diatoms. They are producers who get their energy from the sun and carbon dioxide.

Emergent Property The way the shrimp functions allows them to survive the harsh environmental conditions of the Great Salt Lakes.

The Great Salt Lakes Food Chain

The Life Cycle of Artemia

Female Artemia Anatomy

Dunaliella (microscopic algae)

Group of Huddled Brine Shrimp

Brine Shrimp Reproducing

Works Cited Animal Diversity Web. U of Michigan, n.d. Web. 22 Oct. 2013. . Animal Diversity Web. U of Michigan, n.d. Web. 22 Oct. 2013. .“Artemia Franciscana.” Invertebrate Anatomy OnLine. Lander University, n.d. Web. 22 Oct. 2013. .“Artemia Salina.” Wikipedia. N.p., n.d. Web. 22 Oct. 2013. . Artemia World. N.p., n.d. Web. 22 Oct. 2013. . Biology Reference. N.p., n.d. Web. 22 Oct. 2013. .“Brine Shrimp.” Brine Shrimp. N.p., n.d. Web. 22 Oct. 2013. . Course References (A). Google Sites, n.d. Web. 22 Oct. 2013. . Great Salt Lake Ecosystem. Utah, n.d. Web. 22 Oct. 2013. . Great Salt Lake Ecosystem Program. Utah, n.d. Web. 22 Oct. 2013. . Great Salt Lake Food Web. West Minster College, 1998. Web. 22 Oct. 2013. . Great Salts Lake Ecosystem. Utah, n.d. Web. 22 Oct. 2013. . Great Salts Lake Ecosystem Program. Utah, n.d. Web. 22 Oct. 2013. . Learn.Genetics. U of Utah, n.d. Web. 22 Oct. 2013. . Learn.Genetics. U of Utah, n.d. Web. 22 Oct. 2013. . Learn.Genetics. U of Utah, n.d. Web. 22 Oct. 2013. .

For Full or More Info: https://docs.google.com/a/students.westport.k12.ct.us/document/d/1euO5J-TxL1v46EIkRgRcqcgyohRr6CsQM_WJ9JvvEjI/edit


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