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Sea Lamprey and Trout are parasite-host relationship and is the reason why the Trout population is going down because of no natural predators the Sea Lamprey can overpopulate and take over the food web causing a great imbalance in population at the same time it kills many organisms like the trout making it very harmful to ecosystems like this one.

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After researching, reading fishermen's notes, looking at graphs, etc., we found that the sea lamprey (picture above), which is an invasive fish which sucks the blood out of prey, has been killing the trout. They came to the Great Lakes through the man made canals.

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The sea lamprey is an invasive fish that has made a significant impact on the Great Lakes ecosystem since it was introduced in the 1930s. Originally from the Atlantic Ocean, these unique creatures entered the Great Lakes through shipping canals, particularly the Welland Canal, which allowed them to bypass natural barriers. Their arrival marked the beginning of a challenging chapter for the region’s native fish populations.

Sea lampreys have a distinctive appearance, characterized by their elongated bodies and round mouths lined with sharp teeth. They are parasitic, which means they feed on the blood and bodily fluids of other fish. Using their suction-cup mouths, they attach themselves to their hosts and essentially drain them of nutrients. This feeding method can be lethal for many fish, making sea lampreys particularly dangerous for species that are already struggling to survive.

The life cycle of a sea lamprey begins with eggs, which hatch into larvae known as ammocoetes. These larvae burrow into the mud of rivers and lakes, where they remain for several years, filtering food from the water. After this juvenile stage, they transform into adults, migrating to the ocean to spawn. However, many adults choose to remain in freshwater, leading to continued interactions with local fish populations.

The introduction of sea lampreys to the Great Lakes has had devastating effects on the ecosystem. One of the most notable impacts has been the dramatic decline in native fish species, particularly lake trout and whitefish. These species are not only important for the ecological balance but also hold significant economic value for the fishing industry. The loss of these fish has disrupted the food web, leading to a decline in biodiversity and altering the overall health of the lakes.

Efforts to manage sea lamprey populations have been ongoing and multifaceted. Scientists and wildlife managers have employed various strategies to control their numbers, including the use of lampricides, which are chemicals that specifically target sea lamprey larvae without harming other aquatic life. Additionally, barriers have been built in rivers to prevent adult sea lampreys from migrating to spawning areas.

Despite these efforts, managing sea lampreys remains a challenge. Their adaptability and reproductive capacity make them difficult to eliminate completely. Ongoing research is crucial to understanding their behavior and improving control measures. Regular monitoring of fish populations and the effectiveness of management strategies is essential to ensure the health of the Great Lakes.

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It is more than food it is fein! Explanation: Fein is art Fein is life Fein is everything.

Trout

When people think about animals like fish they think about food. Complicated organisms like the lake trout(Salmonidae) are still being studied by biologists worldwide. You are probably wondering why they call this organism a trout here is why. Salmo is Latin for “to leap” and trutta is Latin for trout. Oncorhynchus is Greek for “hooked snout” and mykiss is derived from the name used for rainbow trout in Kamchatka. Salvelinus is the old name for char, fontinalis is Latin for “from a spring or fountain,” and namaycush is the name for lake trout used by some inland Southern East Cree communities.

What eats trout?

Trout are eaten by fish-eating birds, other fish like salmon, and humans. Lampreys are also a major cause of death for trout in the Great Lakes

Are they safe to eat?

Trout are safe to eat and a popular game fish. Wild caught fish are just as healthy for you as most commercially bought fish and in many cases are healthier. You have probably heard about the fish consumption advisories and wonder if any Indiana fish are safe to eat. The fish consumption advisories that are posted are based on a model that people are consuming 8 oz. of fish on 225 days each year over 70 years. Most people do not eat fish anywhere close to that amount. However, any meat you consume will have some risk associated with it. If you are in a high risk group such as a pregnant woman or a child please consult the fish consumption advisory . You can also see which water bodies have advisories on them (most lakes and reservoirs are lower risk than rivers and streams).

Back on Topic

So now you know about the basic fundamentals about trout lets get back on topic the reason of their population downfall is because now we all know Sea lamprey. So this should definitely answer your question.

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You see, if you had a thing called a brain, you would know, with eyes, how to read, and my reasoning is in there, so I am expanding my reasoning by telling you how to detect that I am expanding on my reasoning.

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It is possible. One way is if the plankton population would decrease if it was being mass hunted. You see, first let's go to human examples. In America, our education is poor, in Singapore, the education is very rich and good. Now if we go back to this, maybe the predators here, examples like Great Blue Heron or walleye, are strong, but in another ecosystem, maybe there are stronger predators. They could've came and been illegally imported to the Great Lakes as an invasive predator. If this is the case, maybe plankton are too weak and are being mass hunted by an invasive species. I think it's possible that maybe the plankton predators getting jealous and angry that their food is being stolen so it could spark a war. If this was possible, which it is because Issac Newton discovered gravity and Albert Einstein discovered quantum physics. So in this case, it is highly possible that a war is possible. Thank you Jordan Almeida, please respond thoroughly and make sure it makes sense for 12 year olds, maybe even 13 year olds. Or make it for dummies. If you need to understand a little more I will repeat what I just said.

It is possible. One way is if the plankton population would decrease if it was being mass hunted. You see, first let's go to human examples. In America, our education is poor, in Singapore, the education is very rich and good. Now if we go back to this, maybe the predators here, examples like Great Blue Heron or walleye, are strong, but in another ecosystem, maybe there are stronger predators. They could've came and been illegally imported to the Great Lakes as an invasive predator. If this is the case, maybe plankton are too weak and are being mass hunted by an invasive species. I think it's possible that maybe the plankton predators getting jealous and angry that their food is being stolen so it could spark a war. If this was possible, which it is because Issac Newton discovered gravity and Albert Einstein discovered quantum physics. So in this case, it is highly possible that a war is possible. Thank you Jordan Almeida, please respond thoroughly and make sure it makes sense for 12 year olds, maybe even 13 year olds. Or make it for dummies.

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The plankton Population is huge how would it decrease in population

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The plankton Population is huge how would it decrease in population

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Could anyone with smarter intellects please answer this question. Ex. of smart people: Muhammad Yusuf Maruf and Muhammad Yusuf Maruf and last Muhammad Yusuf Maruf

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If that's it, doesn't that mean there is an increase in the population of the organism that is hunting the Lake Trout's prey?? So either way, it messes up the entire food web.

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If that's it, doesn't that mean there is an increase in the population of the organism that is hunting the Lake Trout's prey?? So either way, it messes up the entire food web.

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Muhammad Yusuf Maruf I deeply apologize for my mischievous acts i will say your writing is a piece of art and I truly enjoy reading each piece you have thought about. What I really mean is I thank you very much as your thoughts really enlighten me

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Muhammad Yusuf Maruf I deeply apologize for my mischievous acts i will say your writing is a piece of art and I truly enjoy reading each piece you have thought about. What I really mean is I thank you very much as your thoughts really enlighten me

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My pleasure, Jordan Almeida. Please expand on your thinking of thanking me.

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My pleasure, Jordan Almeida. Please expand on your thinking of thanking me.

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Maybe part of it because there are lots of direct and indirect effects.

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Thank you Muhammad Yusuf Maruf for expanding on your thinking

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Thank you Muhammad Yusuf Maruf for expanding on your thinking

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Yes, according to my calculations Jordan Almeida, I think one of their prey, specifically yellow perch is being hunted by a species.

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Yes, according to my calculations Jordan Almeida, I think one of their prey, specifically yellow perch is being hunted by a species.

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I don't think so. I think one of the prey of Lake Trout is being heavily hunted.

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I don't think so. I think one of the prey of Lake Trout is being heavily hunted.

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This food web represents the whole ecosystem that lake trout are in.

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Thanks Muhammad Yusuf Maruf could you please expand on this

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Thanks Muhammad Yusuf Maruf could you please expand on this

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Answer: No, it might have to do with yellow perch.

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Answer: No, it might have to do with yellow perch.

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When the environment around an organism's population changes, it could drastically affect the population.

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A population could be affected by the increase or decrease of another organism's population in their food web.

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Plankton are eaten by many big animals. If something is happening to them, their predators (like puffins) will move to a different place to find them, causing a chain reaction.

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Start of the conversation: Plankton Population

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Start of the conversation: Plankton Population

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Is the plankton population declining the reason why trouts population are

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Do we think this is about food? Is there more to it than we think? What if the problem is some of everything?

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Are lake trout being overfished by humans?????????

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This is a predator of lake trout

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If predators increase, the amount of lake trout will go down. So is there an increase in predators????

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chub eat invertabrates

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Is something happening to Lake Michigan that is harming the lake trout? Temperatures, global warming, pollution?

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Is something happening to the trout's food that is affecting the lake trout?

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Trout eat invertebrates smaller than them like alewives.

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also chum and alewives

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Trout eat a bunch of small organisms at the bottom of the lake, they usually like colder temps

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Deep in Lake Michigan, colder temp.