Answer to question common delta aquatic plants

egomaniac · Post by **egomaniac** » Wed Apr 21, 2010 8:25 am

1. Hydrilla
Hydrilla verticillata
The fastest-growing plant in the world. Forms dense mats that impede water flow. Can double in a week in hot weather. Seeds can live 15-20 years. The Sacramento-San Joaquin Delta are full of it.

2. Giant salvinia
Salvinia molesta
Illegal to sell in the US. Floating mats up to 3 ft. thick reduce light and dissolved oxygen in the water so that few living things can survive. Common salvinia (Salvinia minima) may be sold, but species are difficult to tell apart. Salvinia minima is the one that will hold fish (molesta) will not do to its lower o2 surrounding. Minima is were you pull out the miller punch wieght and you will get through it but expect brazillian water weed under it, where on Molesta it is much thicker....

3. Brazilian waterweed, anacharis
Egeria densa
Infests 7000 acres in the Sacramento-San Joaquin Delta. Aggressively invades natural waterways, high in 02 and forming dense mats that impede water flow. Found mostly in areas with current and perfect for spawning bass, it will hold algea and crawfish ect. May fool you for it is similar to hydrilla.

4. coontail
Ceratophyllum demersum

Submerged Plants. A rootless, deciduous perennial with slender stems and forked leaves. Tolerates shade and hard water. Good oxygenator. I see it more in areas with clear water since it likes the sun. High in 02 levels a great place to find living organisms.

Im sure those are the most common fishing related other that reeds but let me know if you want more info.

Tight lines.

Duckman · Post by **Duckman** » Wed Apr 21, 2010 9:53 am

Nice list ,can you attach pictures of each so we can tell them apart.

egomaniac · Post by **egomaniac** » Wed Apr 21, 2010 10:38 am

thanks let me check for pics or ill even email them to you, once you see them youll know what they are.

BassManDan · Post by **BassManDan** » Wed Apr 21, 2010 10:46 am

Don't forget[i] Elodea spp.[/i] another common aquatic macrophyte in California.

egomaniac · Post by **egomaniac** » Wed Apr 21, 2010 11:01 am

Here is a great site that has detail pictures.

http://www.cal-ipc.org/landscaping/dpp/ ... tic+plants

egomaniac · Post by **egomaniac** » Wed Apr 21, 2010 11:09 am

BassManDan wrote:Don't forget Elodea spp. another common aquatic macrophyte in California.

Yes. Elodea is a genus of aquatic plants often called the waterweeds. Elodea is native to North America and is also widely used as aquarium vegetation. Elodea is hydrilla, or any green stern water plant all these have great 02 levels and sustain organisms. ALSO KNOWN AS ANACHARIA PLANS

egomaniac · Post by **egomaniac** » Wed Apr 21, 2010 11:15 am

A decline in a MACROPHITE population may indicate water quality problems. Such problems may be the result of excessive turbidity, herbicides, or salinization. Conversely, overly high nutrient levels may create an overabundance of macrophytes, which may in turn interfere with lake to river processing. REMEMBER WHEN AT TIMES THE DELTA GET SPRAY FROM FARMERS. And most importants macrophites are 02 producers were in (molesta)and (tricharia) little sustianablity for orgamism and invetabrates with low o2.