Just when you think Iowa water woes can't get worse or grosser . . . .

Killer green algae and fish herpes.

Anyone want to go swimming?

storm-lake-dead-carp-1024x683.jpg


 
Don't you throw Carp on the bank when you catch them anyway? Dad used to dig holes next to the young trees and bury them there...
Whether carp are "trash" fish or not, having them die out en masse in stinky neon green water is not a sign of a healthy ecosystem.
 

jamesvanderwulf

HR Legend
Nov 27, 2015
24,456
27,044
113
People's Republic of Johnson County
You know Chicago rerouted the Chicago river so it ran into the Mississippi instead of Lake Michigan. I'm sure the threads intent was to bash farmers but cities polluted the landscape since the country was founded. Farmers are far from perfect but I see terraces, ponds, buffers everywhere. Pay more for CRP if you want less pollution or bump the cost of fishing/hunting licenses...
 
  • Haha
Reactions: BelemNole

jasonrann

HR Legend
Gold Member
Apr 11, 2007
20,717
28,952
113
I wouldn't set foot in Storm Lake if you gave me a full body suit. It was bad when we used to fish there back in the 70's and 80's.
 

SolarHawk

HR MVP
Jun 27, 2021
2,261
5,128
113
You know Chicago rerouted the Chicago river so it ran into the Mississippi instead of Lake Michigan. I'm sure the threads intent was to bash farmers but cities polluted the landscape since the country was founded. Farmers are far from perfect but I see terraces, ponds, buffers everywhere. Pay more for CRP if you want less pollution or bump the cost of fishing/hunting licenses...
WHATABOUTISM
 

srams21

HR Legend
Gold Member
May 23, 2004
24,185
35,777
113
You know Chicago rerouted the Chicago river so it ran into the Mississippi instead of Lake Michigan. I'm sure the threads intent was to bash farmers but cities polluted the landscape since the country was founded. Farmers are far from perfect but I see terraces, ponds, buffers everywhere. Pay more for CRP if you want less pollution or bump the cost of fishing/hunting licenses...
Umm no. Most of the pollution is Iowa's waterways are from Ag runoff.
 
You know Chicago rerouted the Chicago river so it ran into the Mississippi instead of Lake Michigan. I'm sure the threads intent was to bash farmers but cities polluted the landscape since the country was founded. Farmers are far from perfect but I see terraces, ponds, buffers everywhere. Pay more for CRP if you want less pollution or bump the cost of fishing/hunting licenses...
First of all, I didn't make this post with politics in mind ---- this appears to be kind of a freak disease issue.

That said, you are incredibly wrong about the cause of the explosion of algae and other issues of late --- it is almost entirely due to agriculture, for better or worse.

Here is a good treatise on the situation from the University of Wisconsin:

After last week’s massive cyanobacteria (blue-green algae) bloom in Lake Mendota and smaller (but no less unpleasant) blooms reported in Lake Monona and Waubesa, we received all sorts of questions on what causes these blooms, if they are dangerous and how to stop them. Here are some answers to a few of the frequently asked questions. Think of it as “Phosphorus 101.”

Meet the Problem: Too Much Phosphorus
Phosphorus (atomic number 15 on the periodic table) is an element that is abundant in the Earth’s crust. It gets into ecosystems by the slow weathering of rocks and it plays a crucial structural role in DNA and RNA and is essential to numerous cellular processes. Humans. Animals. Plants. We can’t live without it!
Aquatic ecosystems, especially freshwater ones like lakes and rivers, are often “phosphorus limited.” That means organisms that form the foundation of the food web – phytoplankton and algae – have basically everything they need to grow expect phosphorus. So, when a lot of phosphorus ends up in the lake, they are poised to take advantage and can quickly use it to grow. This is especially true on warm, calm days,as the buoyant algae can float to the surface and grow untroubled by the winds in ideal water temperatures.
Plants on land need phosphorus too and, through their roots, they take phosphorus out of the soil and incorporate it into their cell structures. The problem with plants on land is often, as with our lawns and the crops we grow, we then harvest those plants and remove them from the field or bag up our grass clippings. That means plants can’t decompose and release phosphorus back into the soil they grew in so the soil becomes depleted of this essential nutrient. And that’s where fertilizer enters the picture.
The Primary Source: Agriculture


In the Yahara Chain of lakes (Mendota, Monona, Waubesa and Kegonsa) agricultural practices are, by far, the main source of phosphorus entering the system. That’s not to pick on agriculture, it’s simply a consequence of how we use our land. And, for these lakes at least, that land is primarily used for agriculture. Sure the lakes are pretty urban and, especially for Mendota and Monona, their shorelines are almost completely surrounded by houses and hotels and lawns and parking lots. But if you move a little further from the lakes, you pretty quickly get into a more agricultural landscape and this tapestry of farm houses and corn and soybean fields and dairy farms makes up most of the land in the Yahara chain of lakes’ watershed. The map on the right is of the watershed and, as you can see by the areas shaded yellow, frming dominates the landscape.
Making matters worse, farming in Wisconsin creates a lot of phosphorus – both in the form of cow manure from dairy farms and synthetic fertilizers purchased to help grow corn and soybeans. When both kinds of these fertilizers (manure and synthetic) are spread on the soil, they are vulnerable to runoff. One heavy rain can carry loads of phosphorus and phosphorus-laden soils into nearby creeks and streams and, eventually, our lakes. In fact, U.S. Geological Survey stream gauges catch this in action. In streams that run through farmland and into our lakes, the phosphorus levels go way up after heavy rains.
Other Sources: Cities, Lawns, Soaps
While it is true that urban landscapes can also contribute phosphorus to our lakes, policies and laws enacted over the past several decades have greatly reduced the urban contribution of phosphorus to the system. Wisconsin has banned phosphorus in lawn fertilizers since 2010. Madison’s street cleaning crews do a great job of keeping leaf litter and other sources of phosphorus out of the lake. And, way back in the 70’s, we stopped dumping our untreated wastewater directly into our lakes and, instead, now have a wastewater treatment plant that treats it and returns it to Badfish Creek, downstream of the Yahara Chain of lakes.
Still, it is important to pay attention to what we do here on the Yahara lakes’ shores. Sources of phosphorus like pet waste or the soap used to wash your car or leaf litter that washes into our storm drains can add small amounts of phosphorus. But, when compared to the amount coming into the system through tributaries that drain agricultural land – like the Yahara River or Sixmile Creek – urban inputs of phosphorus are minimal.
The Impacts: Gross Beaches, Dead Fish and Health Hazards
By encouraging so much algal growth in our lakes, phosphorus can have a lot of nasty consequences. As blooms of cyanobacteria (or blue-green algae) pile up in nearshore waters or gobs of stringy cladophora wash up on shore, they began to decompose and, well, they can really stink up the joint.
In the case of blue-green algae, some varieties can produce toxins that are harmful to both pets and humans. Exposure to them can cause skin rashes and, for anything unlucky enough to swallow some cyanobacteria-laced water, it can lead to being very sick and, in rare cases, even death. Pets and small children are especially at risk in these situations.
Algae blooms also contribute to what are called “dead zones” in our lakes. As algae dies and falls to the bottom of the lake, a bunch of tiny aquatic critters and bacteria start breaking it down and getting it decomposing. These organisms need oxygen and, when an algae bloom is big enough, so many of these tiny organisms can consumer so much oxygen, that the water at the bottom starts to run out of oxygen. When fish can’t escape these conditions in time, they suffocate. Big blooms are often followed by fish kills.


 

Keehawk

HR Heisman
May 24, 2011
5,311
5,004
113
Dead carp everywhere but the catfish don't care. 6lbs, 5lbs, and two 4lbs tonight so far. All on Triple S stinkbait