Water is probably the most important resource we as people have. Humans can survive without food for several weeks, but without water we would die in less than a week. On a slightly less dramatic note, millions of liters of water are needed every day worldwide for washing, irrigating crops, and cooling industrial processes, not to mention leisure industries such as swimming pools and water-sports centers. Despite our dependence on water, we use it as a dumping ground for all sorts of waste, and do very little to protect the water supplies we have.
There were 3 different groups of the critters. If they were in the 1st group the water wasnt polluted, if they were in the second group the water was somewhat polluted, and if they were in the 3rd group, the water would be polluted. We found more critters living in group 1. In the graph it shows that we found 88% of the critters in group 1 are living in the water. The critters we found in group 1 were the gilled snails, water pennies, and the mayflies. It also shows that in group 2, only about 2% of the critters living in the water. The insect we found in group 2 was the crayfish. Than, in group 3, it shows that 10.7% of critters are living in the water. The critters found in group 3 were the dragonflies, worms, and the pouched
The procedure for this experiment followed the steps as shown in the flow chart (Figure 1) and will be expanded upon here. The oxygen-measuring probe in the test chamber was first turned on and required 10 minutes to warm up. During this time, two empty containers had 200mL of fish water added to them and then each was weighed using a scale that was tared to zero before use. Two pairs of goldfish were then collected from the large tank #1 in the lab room using the fish net provided, and one pair was placed in each container. Then, the containers were reweighed separately and the original weights were subtracted from the new weights in order to determine each pair of goldfish’s weight. Two trials were conducted and in each trial, each goldfish pair was subjected to two conditions, first a control condition where no factors were introduced, followed by an experimental condition where they were exposed
The U-high freshman biology class designed an experiment to test the question; based on the number of micro invertebrates, what is the water quality of the U-high creek? On 9/22/14, the day of the experiment, the conditions were recorded at 10:05 AM. The temperature was 55 degrees with a 6 mph wind, and 62% humidity. One of the observations of the creek is that there was some garbage and trash on the banks, although there was minimal amount. Another observation was that there was run-off leading into the creek from roads, nearby parking lots, and neighboring yards. There were about 40 small fish, only about 2-3 inches long swimming north against the current. The water was also very clear, and the bottom was clearly visible. Based on the observations
As a group, we did an experiment of billbug and what kind of water they enjoy to stay. Our team was used for experiment sugar water, salt water and plain water. We measured the material we wanted to use. We used salt for 2.0 g. We used sugar for 2.0 g. and we used plain water for 10 ml. We mixed 10 ml of plain water into 2.0 g of sugar and 10ml plain water into 2.0 g of salt. We placed one tissue for each chamber. We dropped in chamber one the salt water. We dropped chamber two the sugar water. We dropped chamber three the plain water. In the middle of the chambers we placed filter paper. Then we put 5 billbugs and let them free to move anywhere they wanted. After 5 minutes we recorded how many billbugs are on each side of the chamber. We
we counted the little critters that live under rocks. then we sorted them into 3 different groups. group 1 they are pollution sensitive and found in good quality water. group 2 are somewhat sensitive and can only live and good are medium quality water. group 3 are tolerant to pollution and can be found in any quality water.
In the first experiment, my partner and I were retrieving rocks from the Conodoguinet creek and observing the organisms on them. We were doing this because there are organisms that cannot survive in pollution. Those organisms are called group 1 organisms. There are 2 other groups. Group 2 organisms can survive in slightly polluted water, and group 3 organisms can survive in any water. If we found a lot of group 1 organisms, than that would tell us that the water was not polluted, or if it was, then it was only very slightly polluted. When we had finished observing the rocks, we noticed that we had found more group 1 organisms than group 2 or 3 organisms. That means the creek is not polluted, or if it is, then only very slightly.
My topic is based around the invasive species lamprey. They cause problems that damage fisheries. The only way to rid of these beasts is through specific methods. Along with some facts about lamprey themselves.
For my entire life, my family has had a fish tank. Not just a small goldfish aquarium, either, but a huge, 90 gallon saltwater aquarium with everything from fish to coral to sea urchins, and more. One of my first memories was of pressing my tiny little toddler hands onto the glass, pointing out the “fishies and anemenenomies”, as I called them then. It was my dad's baby, his pride and joy. The effort that he put into creating the ideal environment was astounding and clearly visible- the aquarium was always vibrant and healthy. By the time I was seventeen, he had perfected his fish tank-keeping skills so much that the his corals, notoriously hard to grow, had overgrown the tank, and he needed to buy another.
Figure 4. Percentage increase in weight of Arenicola Marina over a period of 90 minutes when exposed to varying dilutions of seawater. Values are mean ± SEM. N=6 for 75%
In marine biology this year we have covered many topics. We began the by learning to snorkel safely, in this topic we spent a couple of weeks learning the correct techniques and safety measures to snorkel safely. During this time, we went on many trips out of school to go on dives as a group to practice our skills for the final practical examination. After completing the snorkelling component of the marine biology course we went on to learn about how to maintain a temperate marine aquarium. In this topic we firstly learnt how to set up a temperate marine aquarium, then went fishing to fil our tanks. Once these tasks where completed we learnt about all of the step needed to ensure that the aquarium was successful in keeping the marine animals alive, this included learning about the pump system, how to clean the tank and how to do the various chemical tests to see if the water was in a suitable condition for the animals to live in. after learning about how to maintain a temperate aquarium we looked into local marine issues such as seals in the Coorong and local sharks.
Experiment: On Friday, we put the beaker of pond sample to the fridge. The beaker was in the fridge for 2 days. After taking it out and doing observations on Monday, we realized that every organisms in the pond, from the little algae to the big bugs, is
This topic is also significant for my local community. The oceans species are all unique and many people fish illegally and without caution, therefore we have an environmental responsibility in maintaining sustainable practices. Thus, significantly exploring the living and nonliving factors alarming the ocean including the current policies enforced toward safeguarding the ocean is important.