Fly Fishing Forum - Reply to Topic
Our Environment We are stewards of wild places

Thread: Dead zones in Gulf of Mexico continue to grow. Reply to Thread
Title:
  
Message:
Post Icons
You may choose an icon for your message from the following list:
 

Register Now

In order to be able to post messages on the Fly Fishing Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Additional Options
Miscellaneous Options
Rate Thread
If you like, you can add a score for this thread.

Topic Review (Newest First)
08-04-2007 05:03 PM
popper
Quote:
Originally Posted by GregD
Hi Popper,

I have to agree with your comments. Another NOAA report also supports the demise of our estuaries and waterways due to nutrient pollution.

http://www.noaanews.noaa.gov/stories2007/s2898.htm

Perhaps with more knowledge and discipline and care we can reverse the trend.

Greg.
The area where I worked is on this map, marked with a red triangle.

Thank you for posting this information.
08-03-2007 12:37 PM
GregD
It's big and bad

Here's a recent follow-up survey of the third larges recorded dead zone in the northern Gulf of Mexico...

http://www.noaanews.noaa.gov/stories2007/s2901.htm

Greg.
08-03-2007 12:30 PM
GregD Hi Popper,

I have to agree with your comments. Another NOAA report also supports the demise of our estuaries and waterways due to nutrient pollution.

http://www.noaanews.noaa.gov/stories2007/s2898.htm

Perhaps with more knowledge and discipline and care we can reverse the trend.

Greg.
07-18-2007 05:29 PM
popper I have an interesting side note to add to this, for people who follow this sort of stuff from a scientific angle. The report says that algae cause hypoxia when they decay. The reason is that bacteria which use oxygen break them down. However, the algae themselves can also cause dead zones in shallow bays. I've seen it happen. I've taken the measurements with an oxygen meter. Algae respire oxygen all of the time, just like we do. During the day, when they are photosynthesizing, on balance they give off more oxygen than they take in. But at night, or on dark days, they take in more oxygen than they give off. They can completely deplete a shallow water column of oxygen if the algae bloom is thick enough. I brought this up to my graduate advisor at the time that we were taking these measurements and he didn't really run with it because they were looking at something else. Anyway, you can get these kind of fish kills anywhere in the U.S. that there is a lot of fertilizer runoff into shallow bays. The water column does not need to be stratified. We used to see fish kills whenever it rained. The oxygen would go down to zero ppm at night, but it wouldn't rebound at day because of the low sunlight.

We are poisoning our waters with too much nitrogen and phosphorus in fertilizer. Plants like it just as much in the water as they do on land. That's why the water gets all green and soupy and dead eventually.
07-18-2007 03:28 PM
GregD
Dead zones in Gulf of Mexico continue to grow.

Hello,

I have been watching the dead zones in the gulf of Mexico grow, and each year it seems to get bigger and badder. Nitrogen loads are increasing and cause larger dead zones due to hypoxia.

Florida believes that fertilizer is a significant contributer to the Red tide problems that continue to grow worse and kill fish as well.

Check out the latest Noaa report on the dead zones...

http://www.noaanews.noaa.gov/stories2007/s2891.htm

Greg.

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


All times are GMT -5. The time now is 01:31 PM.



Copyright Flyfishingforum.com (All Rights Reserved)