Should we stop killing freshwater animals?

Ok this is all about freshwater creatures and not much about other creatures. By the way my name is Isaac and I have a question, do you want freshwater creatures such as the Hippo, Manatee and American crocodile to live? Well some fresh water creatures died because of us. The Hydrodamalis Gigas which is a manatee that can grow to 3 - 7.5 meters when adult. Same as the otter known as the Sea mink is already extinct during the last hundred years. Do you think we should stop? Well today I am going to talk about these endangered/extinct freshwater animals and how we can stop other freshwater creatures becoming the same.

Firstly the Hydrodamalis gigas known as Steller’s sea cow is a giant Manatee that is adorable and harmless. It got killed and eaten to extinction by humans just because they were tasty. It’s just sad right? We don’t want to continue like this or else all freshwater creatures will be extinct. This has happened to a lot of creatures already like the Amazon river dolphin, Sea mink, Hydrodamalis gigas( I already said) and New Zealand grayling. There are quite a lot of different Manatee species that have gone missing in this planet all caused by us. Also more and more Manatee’s are disappearing. Also why do we still do this when we all know that the cute Manatee is almost extinct. I don’t know how to stop this but we just have to give up killing them.

Secondly if we still do this then we couldn’t research about them and most of the creatures I just talked about is like forever forgotten. Because we couldn’t research about them. If we do more research then we could get the future people to understand about them more and more until we could know almost everything about them. Also this is rare for fishes. There is a lot of trouts around the world right? But this trout known as the NZ(New Zealand) grayling is extinct! All eaten by creatures and humans. It’s just odd this trout specie is extinct. The creatures and humans kept eaten them it's because they are like the best fish for dinner but unluckily they had it all themselves which is selfish.

Finally the manatee is close to extinction like the Hydrodamalis gigas and the hippo and the american crocodile is also the same as the manatee. The Earth is 70% saltwater and only 3% fresh water and all these creatures realie on fresh water and the world is only 3%. It’s a huge world and only 3% is freshwater and tons of creatures including us realie on freshwater. But why don’t we just stop killing freshwater and eat some sardine's or other creatures that are not close extinction like sardines and other fish. Why do we only kill like endangered creatures when we know there are almost none of them left. We have to stop now or otherwise it’s too late and everything that happened to the sea mink, Hydrodamalis gigas, NZ grayling and Amazon river dolphin will happen to the other freshwater creatures. Now do you think we should continue killing more and more freshwater creatures or do you think we should stop? It’s your choice.