https://padlet.com/sterne8_1/4qg6a05e1pps2k8u State your claim as to what caused the trout to decline, provide evidence for your claim and include your name en-us 2021-10-05 17:11:47 UTC 2025-11-17 22:53:47 UTC hello@padlet.com https://padlet.net/icons/png/1f41f.png sterne8_1 https://padlet.com/sterne8_1/4qg6a05e1pps2k8u/wish/1796105119 I believe that _____________ caused the trout to decline because ________________.]]> 2021-10-06 11:18:40 UTC https://padlet.com/sterne8_1/4qg6a05e1pps2k8u/wish/1796105119 isaaczhang64 https://padlet.com/sterne8_1/4qg6a05e1pps2k8u/wish/1797035252 I believe that both the sea lamprey and dioxin levels caused the trout to decline because sea lamprey have no natural predators in the Great Lakes and dioxin is a toxin that harms trout through bioaccumulation. Graphs show that when the dioxin levels or sea lamprey population rise, the trout population decreases. In Lesson 5 "Fisherman's Journal", it depicts a fisher who finds circular bit marks that resemble the those of a sea lamprey bite marks.]]> 2021-10-06 15:57:35 UTC https://padlet.com/sterne8_1/4qg6a05e1pps2k8u/wish/1797035252 https://padlet.com/sterne8_1/4qg6a05e1pps2k8u/wish/1797038993 I believe that dioxin and the sea lamprey caused the trout to decline because when the dioxin levels skyrocketed, the trout population went down as shown in activity 12.1. When the sea lamprey showed up, the trout population went down as shown in activity 10.1, but not as fast as when dioxin levels went above 100. When dioxin went up, the sea lamprey population went down too, but not as much as the trout, showing that both lamprey and dioxin are affecting the trout.]]> 2021-10-06 15:58:42 UTC https://padlet.com/sterne8_1/4qg6a05e1pps2k8u/wish/1797038993 https://padlet.com/sterne8_1/4qg6a05e1pps2k8u/wish/1797039447 Roy]]> 2021-10-06 15:58:50 UTC https://padlet.com/sterne8_1/4qg6a05e1pps2k8u/wish/1797039447 https://padlet.com/sterne8_1/4qg6a05e1pps2k8u/wish/1797046660 I believe that both the sea lamprey and the dioxin levels affected the trout population. The sea lamprey has no natural predators, and reproduces fast. This means there are lots of sea lamprey to kill trout, and help cause a decline in the population. On the flip side, levels of dioxide increased because of fertilizers and other human causes. The dioxide has causes lots of problems in the great lakes. The trout population started to decline as the dioxide levels increased, leading to the conclusion that the dioxide has also contributed to the decline in trout population. ]]> 2021-10-06 16:01:03 UTC https://padlet.com/sterne8_1/4qg6a05e1pps2k8u/wish/1797046660 https://padlet.com/sterne8_1/4qg6a05e1pps2k8u/wish/1797048128 I believe that the sea lamprey and dioxin levels casued the trout to declince. In activity 12.1 in the graph when the dixion levels where very high the trout population was low but when the dixion levels decreased the trout population increased. In activity 10.5 in the graph when the sea lamprey population was very high the perch population was low but when sea lamprey populations decreased trout population increased. In activity 5 the fishermen described seeing holes in dead trout's bodies casued by sea lamprey. ]]> 2021-10-06 16:01:29 UTC https://padlet.com/sterne8_1/4qg6a05e1pps2k8u/wish/1797048128 EetWont_Flush https://padlet.com/sterne8_1/4qg6a05e1pps2k8u/wish/1797049971 I believe that both the lamprey and the dioxin levels caused the trout to decline because the dioxin levels were over 100 PPT for over 20 years, which will most likely kill every living organism in the water. Another thing that I believe is affecting the trout population is sea lamprey. They are an invasive species so they will typically have little to no predators in their new environment, so they can reproduce very quickly without worrying about their offspring getting eaten by predators. Sea lamprey is also S-swimmers meaning they swim like a snake using their whole body to quickly propel them through the water to catch up to their prey.]]> 2021-10-06 16:02:03 UTC https://padlet.com/sterne8_1/4qg6a05e1pps2k8u/wish/1797049971 https://padlet.com/sterne8_1/4qg6a05e1pps2k8u/wish/1797051300 I believe the trout population was affected by the dioxin levels because there was a graph on page 134 activity 12.1 that showed when the dioxin levels went up the trout population went down.]]> 2021-10-06 16:02:30 UTC https://padlet.com/sterne8_1/4qg6a05e1pps2k8u/wish/1797051300 https://padlet.com/sterne8_1/4qg6a05e1pps2k8u/wish/1797052991 I believe that the sea lamprey and dioxins caused the trout to decline because 21.1 it explains how the fertilizer from cow poop and leaks in pipes goes into the water causing overpopulation in the algae causing dioxins to produce. Sea Lamprey also cause this because in 10.1,7.2 and lesson 6 it explains how sea lamprey have the perfect features like no jaws to suck, reproducing thousands of eggs, no stomach. Sea lamprey have S-Swimmer type bodys that is perfect for swiming quickly and attaching to prey.]]> 2021-10-06 16:03:03 UTC https://padlet.com/sterne8_1/4qg6a05e1pps2k8u/wish/1797052991 https://padlet.com/sterne8_1/4qg6a05e1pps2k8u/wish/1797055931 My claim is that both the sea lamprey and the dioxin levels affected the trout population. It talks about how sea lamprey is a predator to the trout and has been hunting them in activity 6.1. Eventually, the trout population decreased massively to the point where they almost went extinct. Another factor that did not help the trout population that we learned in activity 12.1 is the dioxins in the lake. Dioxins are another factor that played into the decreasing of the trout population, farms near the lake use pesticides to keep insects away from their crops, and fresh food and vegetables, runoff into the lake causing the trout to die and the population to decrease.]]> 2021-10-06 16:03:57 UTC https://padlet.com/sterne8_1/4qg6a05e1pps2k8u/wish/1797055931 https://padlet.com/sterne8_1/4qg6a05e1pps2k8u/wish/1797057243 Thea Phimister]]> 2021-10-06 16:04:22 UTC https://padlet.com/sterne8_1/4qg6a05e1pps2k8u/wish/1797057243 https://padlet.com/sterne8_1/4qg6a05e1pps2k8u/wish/1797060390 I believe that the trout population was affected by the sea lamprey and the dioxin levels. Because when the trout was low both the dioxin and the sea lamprey were high. As it is shown in Activity 12.1 and Activity 10.1.  In the fisher mans journal every single fish he caught was eaten by the sea lamprey. The sea lamprey has no predators in the environment to keep it in check when it is eating so it went out of control. In lesson 12 reading one the algae in the water was killing the fish because they did not have enough oxygen to breathe. ]]> 2021-10-06 16:05:24 UTC https://padlet.com/sterne8_1/4qg6a05e1pps2k8u/wish/1797060390 https://padlet.com/sterne8_1/4qg6a05e1pps2k8u/wish/1797060616 I believe that the sea lamprey caused the trout to decline because from activity 10.1 the graph shows that when the sea lamprey's population had rapidly increased the trout population had begun to decline. This shows that not that sea lamprey were the predators of the lake trout but that the sea lamprey had a negative impact on the lake trout. From lesson 7 it showed the internal and external structures of the sea lamprey and how it caught its prey. Some of the features of the sea lamprey are that they are S-swimmers,they have no jaws, These things had affected the trout and other organisms. From activity 6.1 it shows how the sea lamprey had no predators in the Great Lakes. This mean that there were no animals to keep there population in balance. This affects the trout population ]]> 2021-10-06 16:05:29 UTC https://padlet.com/sterne8_1/4qg6a05e1pps2k8u/wish/1797060616 https://padlet.com/sterne8_1/4qg6a05e1pps2k8u/wish/1797062545 2021-10-06 16:06:06 UTC https://padlet.com/sterne8_1/4qg6a05e1pps2k8u/wish/1797062545 nathansarella04 https://padlet.com/sterne8_1/4qg6a05e1pps2k8u/wish/1797065883 I believe that both sea lamprey and dioxin caused the trout to decline because sea lamprey has no predators and cannot be controlled naturally. In lesson 5, the local fisherman was not catching very many fish, but when he did there were circular scars on the fish, making it unable to sell. This proves that the sea lamprey was killing the fish and was drastically lowering the population. Also, the graph in lesson 10.1, shows that when the sea lamprey population was extremely high, the trout population was plummeting which shows that the sea lamprey was eating the trout. The graph in 12.1 shows also that when dioxin levels were high the trout population was also going down. ]]> 2021-10-06 16:07:10 UTC https://padlet.com/sterne8_1/4qg6a05e1pps2k8u/wish/1797065883 https://padlet.com/sterne8_1/4qg6a05e1pps2k8u/wish/1797066945 The sea Lamprey and the Dioxin levels both affected the lake trout. This is because in activity 12.1 The article states that the dioxin levels were above 100PPT for 20 years. In activity 10.1, from 1944-1960 the trout population went down a lot when the Sea Lamprey population was high. And lastly, in lesson 5, the fishermen were talking about how there were strange wounds in a lot of the fish that seemed to be of the lea lamprey type of wounds. They knew they were sea lamprey wounds because of the way the sea lamprey mouths are shaped and how they don't have jaws.]]> 2021-10-06 16:07:30 UTC https://padlet.com/sterne8_1/4qg6a05e1pps2k8u/wish/1797066945 https://padlet.com/sterne8_1/4qg6a05e1pps2k8u/wish/1797067830 i believe that the trout population was effected by both because when the Dioxin levels increased the trout population decreased, another reason why i think that the trout population was effected by both is because when the sea lamprey first traveled to the great lakes they were a invasive species so they didn't have any predators and because they have no predators they would feast all day on trout.]]> 2021-10-06 16:07:48 UTC https://padlet.com/sterne8_1/4qg6a05e1pps2k8u/wish/1797067830 https://padlet.com/sterne8_1/4qg6a05e1pps2k8u/wish/1797073665 I believe that sea lamprey and dioxin levels caused the sea lamprey to decline. One reason to support this answer is in 10.1 notes it says possible things that effect trout population are invasive species, migrating, over fishing, and pollution. Another reason is in lesson 12.1 it say for 20 years the dioxin levels were higher than 100ppt.]]> 2021-10-06 16:09:39 UTC https://padlet.com/sterne8_1/4qg6a05e1pps2k8u/wish/1797073665 https://padlet.com/sterne8_1/4qg6a05e1pps2k8u/wish/1797074587 ^{I choose sea lamprey and dioxin because dioxin gets into the bodies of the trout when they eat other small fishes and dioxin add up more and more which will at some point kill them and I chose the sea lamprey because the sea lamprey had no prey s in the great lakes which leaves them with a verity of fish to eat like trout which the lamprey eats more and more and that is the cause of the trout decline.                                      _By:Ramanaa}    ]]> 2021-10-06 16:09:55 UTC https://padlet.com/sterne8_1/4qg6a05e1pps2k8u/wish/1797074587 https://padlet.com/sterne8_1/4qg6a05e1pps2k8u/wish/1797079070 I believe that the sea lamprey and the dioxin levels caused the trout population to decline because (12.1) when ever the dioxin levels were to decrease the trout population would decrease and the same would happen when the trout population started to increase the dioxin level began to decrease. (7.2)A reason the sea lamprey decreased the population of the lake trout is because they reproduce so fast that they decrease the trout population more and more. (6.1)The sea lamprey is also an S-swimmer, which is a very fast swimmer and it is easy to get around and catch its prey faster. (12.1) For many years (20) the dioxin level in the great lakes was above 100 ppt.]]> 2021-10-06 16:11:15 UTC https://padlet.com/sterne8_1/4qg6a05e1pps2k8u/wish/1797079070 https://padlet.com/sterne8_1/4qg6a05e1pps2k8u/wish/1797079702 I believe that both the Sea Lamprey and the dioxin affect the trout/perch population. There are many causes but one of them is, in lesson 10.2 where the graph says that when the trout population decreases the Lamprey population increases. This shows that the lamprey is eating too much trout and that's why their population is decreasing. Another reason is in lesson 12.1 where it says that the clean water act in 1970 reduced the dioxin levels in the water which increased the trout population. In lesson 7.2, it states that the Lamprey lay thousands of more eggs than the perch and that's what makes it really easy to over power and reduce the population of the perch.]]> 2021-10-06 16:11:28 UTC https://padlet.com/sterne8_1/4qg6a05e1pps2k8u/wish/1797079702 https://padlet.com/sterne8_1/4qg6a05e1pps2k8u/wish/1797086088 I believe that both Sea Lamprey and dioxin caused the trout to decline because the dioxide had negative impact on the trout (Activity 121). The Sea lamprey have teeth that help it to suck the juice out of the trout. (Sea lamprey and Lake Trout, Lesson 7)]]> 2021-10-06 16:13:24 UTC https://padlet.com/sterne8_1/4qg6a05e1pps2k8u/wish/1797086088 https://padlet.com/sterne8_1/4qg6a05e1pps2k8u/wish/1797098558 i, in my own opinion believe that both the sea lampery and dioxin levels affected the trout population. in lesson 12.1 it shows that if the ppt level were be at 100 ppt, all organisms that are living would be unfortunately dead (including the trout). This lesson shows how ppt (dioxin) affects the trout population and how it lowers it. in lesson 10.1 it shows that when the sea lampery population would be high, the trout population would be low. The sea lampery would be eating the trout population. and finally in lesson 7.3 it shows that the sea lampery has no jaw but rows and rows of teeth which is good to suck the blood out of prey and the sea lampery has a jaw harder to sink its teeth into other prey. Sea Lampery would have the upper head and kill the trout, affecting the population; so my claim proves that both sea lampery and dioxin levels affect/affected the trout population.]]> 2021-10-06 16:17:19 UTC https://padlet.com/sterne8_1/4qg6a05e1pps2k8u/wish/1797098558 https://padlet.com/sterne8_1/4qg6a05e1pps2k8u/wish/1797105832 I believe that both the sea lamprey and the dioxin caused the trout to decline because in activity 12.1 the chart showed that when the dioxin levels increase, The trout population decreases. Also in activity 10.1 the chart shows that when the sea lamprey population increases, the trout population decreases and when the lamprey decrease the trout increase. In Activity 7.3 it also says that the Sea lamprey have very many Sharp teeth that allows it to make it easier to catch there predators. ]]> 2021-10-06 16:19:31 UTC https://padlet.com/sterne8_1/4qg6a05e1pps2k8u/wish/1797105832 https://padlet.com/sterne8_1/4qg6a05e1pps2k8u/wish/1797109222 Both the Sea Lamprey and Dioxin affect the trout population. This is because, on activity 12.1, the graph shows dioxin increasing in levels, meanwhile, there is Trout decreasing in level. It is also the other way around, as dioxin decreases, Trout increases, which proves that dioxin kills Trout. Also, the Sea Lamprey affects the Trout population, this is because, on activity 6.1, the table shows that Sea Lamprey has no predators and kills Trout, so if they increase rapidly, because of no predators, and kill Trout, the Trout die off easily. And on lesson 7 reading 1, Sea Lamprey, which kills Trout, reproduces quickly, can breath sucking blood from the prey, and is an S-swimmer, and is therefore fast, these qualities allow Sea Lamprey to be very successful, and easily kill Trout. So, in conclusion, Sea Lamprey and dioxin affect and reduce the Trout population]]> 2021-10-06 16:20:38 UTC https://padlet.com/sterne8_1/4qg6a05e1pps2k8u/wish/1797109222