Gamer posted this on AC, I thought it was interesting and sad.
http://www.foxnews.com/wires/2008Jul17/0,4670,GreatLakesInvasives,00.html
http://www.foxnews.com/wires/2008Jul17/0,4670,GreatLakesInvasives,00.html
Economic loss from invasives in the Great Lakes
- Thread starter ewurm
- Start date
Most people don't know this but Mussels are the most impacted animals on the planet. At around 68% with some type of imperilment.
I hate hate hate corbicula. I've done tons of mussel surveys in my area and I can honestly say that the asiatic clam is the worst organism on the planet. For every 2000 Corbicula I pick up in most streams in my area, I get a pig toe, one pond shell, and maybe another. No variety at all. It's all Zebra mussel.
Also, Alewife up there are terrible. Still though, I'm fairly interested in the Great Lakes predator prey relationships as impacted by the invasive. I know the walleye there are flourishing...
I hate hate hate corbicula. I've done tons of mussel surveys in my area and I can honestly say that the asiatic clam is the worst organism on the planet. For every 2000 Corbicula I pick up in most streams in my area, I get a pig toe, one pond shell, and maybe another. No variety at all. It's all Zebra mussel.
Also, Alewife up there are terrible. Still though, I'm fairly interested in the Great Lakes predator prey relationships as impacted by the invasive. I know the walleye there are flourishing...
I just counted: we have 51 species of aquatic fish and invertibrates that are considered invasive and threatening to our waterways.
You know, that sad part is some of the aquatic invasives are treated as game species.....kinda confusing yes?
i would not say any one native species is flourishing.....many games species are hatchery supported. The Walleye for example are a huge success story due mainly in part to the Tribes of Wisconsin. During the spring spearing, any and all breeding fish of the species speared are milked on site and the eggs incubated and raised to release size at Tribal Hatcheries. These fingerlings are then released back into their parental waters. One pair of Walleye can produce up to 800 eggs. At least half +/- reach fingerling stage and are released. -FM
You know, that sad part is some of the aquatic invasives are treated as game species.....kinda confusing yes?
i would not say any one native species is flourishing.....many games species are hatchery supported. The Walleye for example are a huge success story due mainly in part to the Tribes of Wisconsin. During the spring spearing, any and all breeding fish of the species speared are milked on site and the eggs incubated and raised to release size at Tribal Hatcheries. These fingerlings are then released back into their parental waters. One pair of Walleye can produce up to 800 eggs. At least half +/- reach fingerling stage and are released. -FM
Do you guys have a problem with the trout in the lakes? I heard something about them outcompeting walleye? Dunno.
I hate invasives. We lose so many mussels and darters in this area due to them :-(
I hate invasives. We lose so many mussels and darters in this area due to them :-(
They are. I know someone that was looking into doing graduate work on predatory prey interactions between the trout and walleye. That's all. Not a problem yet, but could become one.