longknife
Diamond Member
- Sep 21, 2012
- 42,221
- 13,091
by Colette Derworiz, Calgary Herald
A ship enters a port with certain mollusks attached to its hull. A couple drop off and, in not so many years, they multiply and begin to spread. So what? We've got some strange creatures in our waters. What's the big deal about that?
And, there is this:
Read more @ Invasive mussels could carry high costs
A ship enters a port with certain mollusks attached to its hull. A couple drop off and, in not so many years, they multiply and begin to spread. So what? We've got some strange creatures in our waters. What's the big deal about that?
The invasive species, zebra and quagga mussels, are spreading throughout the western United States and Eastern Canada making it as far west as Lake Winnipeg in Manitoba.
And, there is this:
The mussels eat by filtering water and removing microscopic organisms, depleting a lake of food sources for native fish. The water also becomes much clearer, leading to higher plant growth and wreaking havoc on boats.
It can also lead to algae outbreaks and widespread bird die-offs.
Read more @ Invasive mussels could carry high costs