Thursday, October 18, 2012

The last pic


Josh

The last

The last day of our journey we spent it figuring out that all 3 fish were still alive and that they were alive and well. Will, Kevin, and Josh will miss spending time with our fish. We have grown into a relationship with our fish. It will be sad to see them go and leave our lives. We cleaned out our tank and everything is clean and for the next class to use. We will miss our fish and it is sad to see them go.
Josh

Blog topic 10/11

Hydrilla
1.  Hydrilla is among the worst of the invasive aquatic plants and they can spread easily via fragments broken off from plants in the water. 
2.  Hydrilla can grow in any type of fresh water; the only exception is that hygrophila grows primarily in flowing water. 
3.  It can also grow in low light levels, so the plant can thrive in very little sunlight. 
4.  Since hydrilla grows quickly in a variety of conditions it can live anywhere.

Purple Loosestrife

1.  Invasion of Loosestrife into a wetland can result in the suppression of the resident plant community and the eventual alteration of the wetland's structure and function. 
2.  Large monotypic stands of Loosestrife jeopardize various threatened and endangered native wetland plants and wildlife by eliminating natural foods and cover. 
3.  Dense plant establishments in irrigation systems has impeded the flow of water.

Water Lettuce

1.  Water lettuce can have a severe impact on the environment and economy of infested areas. 2.  The dense mats created by connected rosettes of the plant lead to the majority of problems encountered with water lettuce. 
3.  These mats can have a negative economic effect by blocking waterways, thus increasing the difficulty of navigation and hindering flood control efforts. 
4.  Mats of water lettuce can also have a severe impact on the environment.

Josh

Blog topic 10/10

Alligator Weed
1. Displacement of native vegetation 
2. Disruption of navigation and recreation by the formation of impenetrable mats 
3. Decreased water flow and uptake for agricultural, municipal, and industrial purposes 
4. Expansion of human health risks with increases in mosquito breeding habitats

 Eurasian Water Milfoil

1. Changes natural oxygen and thermal stratification patterns
2.  Reduces circulation, creating problems with dissolved oxygen and bacteria
3.  Disrupts recreational uses
4.  Reduces in-lake biodiversity
5.  Provides poor fish and wildlife habitat

Giant Salvinia
1.  Giant salvinia can double in size in 4 to 10 days under good conditions. 
2.  Giant salvinia is an aggressive invader species.
4.   If colonies of giant salvinia cover the surface of the water, then oxygen depletions and fish kills can occur.

Josh

Oxygen cycle

In the oxygen cycle plants breathe in carbon dioxide and then breathe it out as oxygen for us to breathe.
-will

Nitrogen cycle

In the nitrogen cycle waste from fish is turned into ammonia and then that ammonia is turned into nitrites and those nitrites are then transformed into nitrates which can then be used by the plant.
-will

Wednesday, October 17, 2012

R2 fish school

Me and Liz made a video of one of the fish in ms.woods tank swimming through the hoop! Liz got him through and I was recording. It was definitely one of the coolest things ever and we were really excited when we saw the fish actually swim through. It was one of the prouder moments of my aquatic science life and it really was not that difficult to do, anyone should be able to do it if they set there mind to it like Liz did.
-will