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biological contamination

2364 Views 37 Replies 15 Participants Last post by  monk
hey guys, how do you feel about biological contamination?

every drop of water that gets dumped down the sink or tiolet or fish that gets flushed or coral that croaks and stinks to high-heaven goes straight into a fresh water water shed. bacteria are notorius for being able to survive harsh conditions such as huge tempature gradients in just centimeters of water and there are bacteria that arent even carbon based but living here on earth!

do you think the US should ban the sale of marine life? ban the sale of wild marine life only? and sell only life that is bred in captivity in tropical zone?

these are valid points to our area since the zevbra mussle which is native to the salt water of the black sea has taken over the great lakes and inland lakes. i'm interested in everyons thoughts

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Can you name an invasive species that has appeared in the Great Lakes system due to the dumping or flushing of marine water from home aquariums? And if so what effect has it had on the system?
I agree with you DlBerlin. The only point I was trying to make was that Emprr_angl is concerned with marine aquarium enthusiast dumping a small amount of water into drains weekly when in reality the amounts of water brought in by ship ballasts is who knows how much greater and more dangerous to the Great Lakes. When you look at the comparison between the two and which has made a greater impact on the Great Lakes it really makes no sense why he would go after marine aquarium enthusiasts. Notice this quote “James Carlton concluded that on any given day at least 7,000 species of "aquatic hitchhikers" are probably present in the ballast water en route between continents. Every 12-14 weeks on average, yet another alien species manages to establish itself in U.S. coastal waters.” If he feels the need to write letters to anyone it should be to the ship owners, or maybe to the nations allowing these ships to import non-indigenous species into Canada and the US. He should also consider who he addresses if someone tries to put there hippo tang who out grew there 10 gallon saltwater tank into some inland lake the tang has zero chance of living. Now if some college student thought it would be cool to dump his two piranhas into the same lake one night which has a chance of doing more damage. I guess he wasn't really talking about fish but it still can relate in a way.
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Sorry guys I wasn't trying to be negative at all I'm just fascinated in this type of stuff. For example did you know that there are 139 invasive species (59 plant, 24 algae, 25 fish and 14 mollusk) that have been introduced into the great lakes since the 1800's? And of at least 13 have made a large negative impact. In my opinion one of the worst is the water milfoil, which has the power to spread rapidly and suck the oxygen out of healthy lake ecosystems. Others not mentioned by others include the purple loosestrife and the water flea (sea flea to the salmon fisherman).
Emprr_angl if your interested in invasive species you should look into the history of lake Victoria, which is located in Africa. In the 1960's European biologists felt that they could introduce a species commonly named the nile perch for locals and Europeans for fishing recreations. There was little effect for a short period then it was noticed that the perch was feeding on local fish called cichlids which was eaten by natives. After a short period of time all of the cichlids had been eaten so now the perch were without food as well and there population declined rapidly. I thought this is a great example of the extreme effects invasive species can have on a stable ecosystem.
Again I'm sorry to anyone that I offended
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