Sea Star Fish Lab Report

This lab was conducted with the purpose of confirming the trait of homeostasis among goldfish. During the experiment, it was recorded that the fish would increase gill movement when placed in colder water two out of the three trials. However, the results showed no significant difference in gill movement in various temperatures of water. This has very little effect on the broad field of science since our only three trials were performed and may have included human error in the trials.

At the conclusion of the experiment, the two hypotheses were reviewed. Because the water temperature did affect the normal respiration patterns of the goldfish, the null hypothesis was disregarded and the alternative hypothesis was accepted. From the results of this experiment, it was concluded that although other environmental factors could play

The sixth lab I completed in Biology 101 taught me how autotrophs (self-feeders) and heterotrophs (other-feeders) make organic food molecules by using photosynthesis. Photosynthesis uses the energy from the sun and it is captured and stored in the chemical bonds of organic molecules. The sunlight consists of different wavelengths of light. In plant chloroplasts, they have different pigments that capture different wavelengths of light. Light capturing pigments in green plants are called chlorophylls and these absorb all the colors of light except green, which is mostly reflected. To separate molecules from each other according to their solubility in a particular solvent is done by the process of chromatography. This basically means that polar

For the entirety of the project the water had an awful scent. The water was a brownish or yellow color till the last time my group check on the ecosystem. The latest checkup, the water was clear. It turns out that the reason why the color was that color because the plant progressively throughout the project died. The coloring is from organisms breaking down the bacteria. The water turned clear because the bacteria was finally all cleared up. I was interested in how the beta fish that was in the same section of the ecosystem as the snail, played dead most of the time. From doing some research on this observation, it shows that this type of behavior is common. This happens because the beta fish might have a bladder disorder or the person

I've always been enamored by the ocean. Growing up in the puget sound, I've been exposed at an early age going to places like the Pacific Science Center and the aquarium to find wonder in the animals and the habitats that they live in. I always remember consistently going to the tide pools that were offered at exhibits. Even though at a young age I was too scared to actually touch a lot of the animals, I was fascinated how they were able to be living in such a small area and thrive off each other. More specifically, The starfish caught my attention because of how uniqueThey are: shape, size, texture, and ability to regenerate is pretty cool. This interest grew as I went to beaches from the West Coast and even in Hawaii when I spent hours looking

(Wachirasiri et al., 2016) examined the effects of amino acid type, concentration and pH on yield, texture, and colour of both cooked and uncooked shrimp after a freeze-thaw cycle and Sensory evaluations of the treated cooked shrimps. This study reported amino acids were also improved yield of white shrimp (table 2). Compared to the control, shrimp treated with glycine, arginine, lysine and proline improved product yield. Treatment with NaCl could improve WHC by thawing yield and cooking yield of the fresh shrimp sample. Chloride ions were more strongly bound to the protein than the sodium ion, resulting to an increase of net negative charge of protein. The electrostatic repulsion and increased interfilamental spaces allowed more water molecules to be penetrated and adsorbed into.

At New Melones, as the lake level dropped another 3-feet last week, avid fishermen were not discouraged as they launched off the gravel area of Glory Hole Point where 4-wheel drive is recommended. Graveyard shift anglers are catching trout, crappie, and catfish, using submersible lights and live minnows. Daytime anglers are finding the trout and kokanee down to the 50 to 70-foot level. Bob James, of Murphys, a frequent angler at Melones, caught a limit of kokes last week by trolling an Apex lure at 65-feet in the main lake. Bass fishing remains good early mornings and late evenings. Topwater baits such as Whopper Poppers, buzzbaits, and spinnerbaits can produce some explosive topwater action. Dark colors seem to work better at night. Catfish are always around and last week's big fish winner at Glory Hole Sports was John Wilson, of

The change in temperature affects the respiration of goldfish. In goldfish, active metabolic rate decreases as temperature is lowered (Johnston and Dunn 1987). The goldfish breathes per minute is decreased as oxygen is required for this activity. A similar experiment conducted supports the result from this experiment that oxygen consumption decreases as temperature decreases (Fry and Hart 1948). The decrease in breathes per minute was observed as the temperature was lowered. The average breathes per minute decreased from 110 to 92 per minute when the temperature was lowered from 22 to 12. So, the null hypothesis that the change in temperature will not affect the breathes of the goldfish was rejected. There were some sources of error for this

The starfish is native to intertidal zones where they prey on mussels and barnacles that would otherwise eat almost all the tidepool life. When starfish are taken out of the environment it allows for these mussels and barnacles to

In the depths of the deep sea finding food to eat is scare and any opportunity they get, they need to take. Anglerfish can wiggle the esca to make it resemble a prey animal, which lures the anglerfish's prey close enough for the anglerfish to devour them whole. They are equipped with sharp teeth and powerful jaws, this allowing any prey they catch to not escape. The anglerfish also can extend its jaw and stomach to an incredible size. This is very important because the anglerfish can swallow prey twice the size of its body. Having this adaptation means when times are scare and they cannot find any prey, they will have food already stocked

A discovery that has been made at the Marine Biology Laboratory in the last 5 years would be the discovery of light sensitive cells in a zebrafish tail. Scientists at the Marine Biology Laboratory were attempting to figure out how zebrafish moved, so they analyzed the genetics of the fish. As a surprise, the scientists found code for a light-sensitive protein, usually found in the eyes, called opsin. Scientists wanted to see if they could stimulate the light-sensitive proteins, in the neurons, with light. The scientists soon discovered the light was, in fact, inhibiting the neurons from firing. The ability to detect light evolved before eyes, so a mutation in zebrafish could have allowed them to sense light with their tails, enabling them

They are covered in mucus which allows them to catch small prey such as plankton and other small creatures floating around in the water. They can propel themselves forward to create a current that forces prey within reach. Cannonball jelly have tentacles that are covered with poisonous barbs called nematocysts. They have simple digestive systems that seem almost incomplete. They do not possess organs such as the pancreas, liver, or intestines which could aid them in their digestive process. They have one cavity called the coelenteron that acts as the stomach and the intestines. Food is broken down inside the jellyfish’s stomach by enzymes made by cells located along the inner body cavity. The cells help receive and send nutrients around the jellyfish’s body. The jellies have only one opening into the digestive system which acts as both its mouth and its

In order to give the viewers more information about Tilikum, Blackfish incorporates interviews of men who worked in the whale capturing  business. By doing this, the viewers could not help but feel sympathy for the animals. One man went into description on how they went upon their business. He states that they were only after the young ones so during the extraction, he remembers hearing the babies cry out for their mothers. By the end, they had three dead whales in their net. Three men then cut open the whales and filled them with rocks so they could sink to the bottom of the ocean. In 1976, the state of Washington gave out a court order telling Sea World that they were not allowed to hunt for whales there any longer but that did not stop this

While majority of the echinoderm starfish are either male or female, certain starfish undergo a process known as sequential hermaphroditism. This means while certain starfish are born all male, certain males become female over time, as they stop producing sperm and begin producing eggs. In addition, starfish can reproduce both sexually and asexually, either by releasing sex cells into the water, by fission, or autonomy of arms, meaning starfish can essentially split into two. The starfish contains two gonads in each arm, known as ovotestis. Their purpose is to carry out the process of sexual reproduction. This type of gonad is seen in both genders of starfish, producing sperm for the males while producing eggs for the female. Starfish eggs

Like most sea stars, the cushion star feeds by everting its stomach through its mouth, and pouring enzymes on it's food, before sucking out the pre-digested food to gain nutrients. They are known the prey on corals and other inactive organisms, as well as decaying organic matter.