Living+Organism+Test

**Hypothesis:** We do not think that there will be a lot of organisms living in the river because it is getting cold and the living organisms may like warmer water.
 * Period 6 group D Kelly Brett Julia **


 * Prediction:** If living organisms like warmer water and that’s were they live then there shouldn’t be that any organism in the cold river water.

1.  Walk down the river and watch for any living organisms 2.  Catch as many different organisms that you possibly can. 3.  Bring back to lab to experiment with. 4.  Look at the living organism’s sheet that contains pictures and names of all the living things in the river we are testing. 5.  Add up all the number of organisms and in each group and multiply it by the specific decimal according to the sheet. 6.  Add the last four numbers to each group and divide it by the total number of organisms that you found **Data:** We discovered the following organisms: a tubifex worm, water striders, snail, horsehair worm, and a crawling water beetle. We also found numerous types of fish that we could not identify based on the sheet we used.
 * Procedure:**


 * Conclusion:** We believe that because the water is too cold for most living organisms to survive, there weren't as many found as there possibly could be. By what we could find, we could find out that the river would be considered healthy because there were more healthy organisms then unhealthy organisms.


 * Period 6 Group F: Matt, Laura, and Juliette**


 * Hypothesis:** We don't expect to see that many organisms because of the lack of the cleanliness of the water. We also do not expect to see many organisms because of the area of the water we are in (small tributary to the Passiac River).

If we search our area of the water, and the we don't find many organisms in the water, then we can predict that the water is unhealthy.
 * Prediction:**

1. Start at the walking bridge connecting the school and Mee Lane.t is getting cold so 2. Walk upstream looking for organisms, until you reach the Central Ave. bridge. Catch as many **different** organisms as you can. 3. Walk back towards the way you started. Walk downstream looking for organisms until you reach the big tree by the stadium. Once again catch as many different organisms as you can. 4. Count all together the amount of organisms you catch. 5. Identify the organisms ( you can use a bio-monitoring and data sheet.) 6. Multiply the number organisms in each of the groups by the value of the index (4,3,2,1). 7.Add the final four numbers to each group and divide by the total number of organisms that you found. 8. This tells you your pollution tolerance of the stream we have observed.
 * Procedure:**

We have found in the river the following organisms: a tubifex worm, water striders, snail, horsehair worm, crawling water beetle, and a leech. We also found various fish that we could not identify.
 * Data:**

After we did the test, we found that the Pollution Tolerance level of the river was 2.333. Our predition/ hypothesis was somewhat correct. We said there would be a low amount of animals due to the cleanliness of the water; which was correct. We rounded it down to 2, shopwing that the water ws of fair quality. This concludes that the water is of about average quality for organisms to live in.
 * Coclusion:**

Living Organism Test/Group B, period 3, Julia O, Johnny, Josh L, Adriel Hypothesis: We do not expect to find a lot of living organisms because it is cold. We also believe we will not find a lot of organisms because the river is dirty.

Prediction: If we search our part of the Passaic River, and we do not find a lot of variety of living organisms, then we can predict the river is unhealthy.

Procedure: 1 Catch living organisms in stream 2 Put organisms in containers 3 Get a fish net 4 Get beaker and fill with water 5 Get organisms and place in water 6 Observe 7 Write down observations 8 Observe and see if the animal is a good indicator or a bad indicator. 9 Record observations in notebook.

Supplies    Pencil/Pen    Bio-Monitoring Sheet & Binder with identification of organisms    Paper    Computer    Living Organisms    Water    Beaker    Tank with organisms in it

Observations:

Fish We found two species of fish. One of the fish is a silvery blue or black. With a blue stripe going down its side. This fish seems to be a more weary fish and always hides under the leaves which can mean it is scared or it does not like light. The second species of fish we found was yellowish brown fish with brown splotches throughout its body. We found several of them which means they are probably the more abundant species. They seem to be more social and not as scared as the blue fish. We noticed that some of the yellow fish have darker stripes and seem a little bit brighter. We think that this is a sex difference not a species difference. I think that the ones with the darker stripes are males because male birds are brighter and more colorful. Also I think because it is fall some of the fish might of migrated or hibernated.

Insects and Other Organisms Water Strider: Has a black narrow body with white running down its side. Legs are as long as body is. I was surprised we found water gliders because I would think it would be to cold. Orb Snail: We found an orb snail but it was dead the snail itself was a bluish color and the shell was a sandy color. On the sheet we found another snail so we put them in the same category. Worm: We found a worm which was pretty big but the fish ate it so we did not have time to record it. This makes the fish carnivorous. Small Beetle: We could not figure out the exact species but it is tiny and swims on the top of the water. It is about as big as a small grain of rice.

Conclusion We realized that the stream is unhealthy because we found a little bit of living organisms. We did not have time to the bio-monitoring sheet but we did not find a lot of life therefore making the river unhealthy. The organisms we were observing were pretty healthy and the organisms were active. Some of the things that went wrong is we did not have enough time to do the bio-monitoring sheet. Also for the one unidentified beetle it was hard to identify the animal. I know from past experiences that crayfish do live in our part of the Passaic River. I also believe that since it is fall we might not find as many animals as in the summer and spring. Pollution Tolerance Index: 3 The River is actually healthy because we did the math and figured out that the river is healthy.


 * Living Oraginism Test; Period 3 Group A **

**Procedure**: 1. Get a fish net/beaker 2. Look for fish or other organisms 3. Use net to get fish or other organisms 4. Full beaker 5. Put fish/other organisms in a beaker 6. Observe fish 7. Use sheet see what organism it is 8. Use pollution sheet to see if its bad or good for the river 9. Put fish back into bucket **Hypothesis:** When we look at the organisms that we collected from the river, then we should be able to decipher the type of fish that it is.


 * Prediction:** If we believe that the river is unhealthy, and we test it by looking at the different organisms and determining what species each one is, then the species should indicate that the river is an unhealthy habitat to live in or around.

The first was black with one light blue stripe. The other fish species was clear skinned with black dots all over. It can be orange or yellow depending on gender. We predicted that orange was male due to past experiences. Next we found an orb snail. These are not good for the environment. We also found water gliders which are generally healthy they float on the top. There was also a tubiflex worm found in the creek water that is very bad for the river. Another organism we found was a water beetle which is healthy **Conclusion:** We conclude that the river is in good quality, meaning healthy, due to our experiments with the living organisms. There were more healthy organisms in the river compared to the unhealthy ones. There were four healthy indicator species, along with two bad species. (Six total.) Considering the living organisms, the river is healthy. d
 * Data:** in our studies, we found two species of fish.

Period 3 group D

Hypothesis: We think that the results of the living organism ID test will show that the river is generally unhealthy like we originally predicted in the class hypothesis.

Procedure: Get a notebook a pen, and an organim ID sheet along with a pollution tollerance index. Then start down the stream carefully looking for organisms and identifing the ones you find. then check them off on your index. Then follow the directions on the sheet to find your pollution tollerance level.

Prediction: If the river is generally unhealthy and we look at all the living organisms to check the pollution we should find many unhealthy indicators.

Data: bad indicators- pouch snail, tubix worm ( 2 species times index value of 1= 2) good indicators- riffle beetle, fish, fish 2, water strider ( 4 species times index value of 4= 16)


 * 16 + 2= 18 18 / amount of species (6) = 3 //__3 is good quality__//**

Conclusion: After our test the data did not support our generall or specific hypotheis. It showed that the water quality was good and that it is healthy. There were many more spedies in the stream than i thought, and this is a good indicator that it is an overall healthy stream.

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 * PERIOD 6 GROUP E - Rich, Rosanna, Kara, Nick **
 * Hypothesis: ** We believe the water is unhealthy, so we are expecting to find organisms that are only found in unhealthy water and cause a high pollution tolerance index.


 * Prediction: ** If we find organism in the river, and the organisms are harmful and cause a high pollution tolerance index, then the river is unhealthy.

1: Catch organisms from the river 2: Make observations 3: Classify all the organisms 4: See if they are healthy or harmful for the water by using the pollution tolerance sheet
 * Procedure: **

Tubifex worm: Group 4 Water strider: Group 1 Slug/Snail: Group 3 Horsehair worm: Group 4 Leach: Group 3 Total Pollution Index: 1.8
 * Data: ( using the bio-monitoring data sheet) **


 * *We found a lot of fish but we had no way to classify the fish so we left them out of it. **

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 * Conclusion: ** We can conclude that the water is fairly healthy. We used the bio-monitor data sheet to find the pollution tolerant. Finding these organisms we found the pollution tolerance. It was 1.8 that is average, not good or bad. It is fairly good so we can conclude the river is averagely healthy.