Are Good Bio Indicators Of The Aquatic Ecosystem?

Figure 2.0 further supports the notion above, where the Simpson’s Index of Diversity is greater in Habitat A in comparison to Habitat B, with a difference of 0.22. From Figure 3.0, it is evident the species Copepod is most abundant in both Habitats A and B, whereby the proportional abundances are 0.628 and 0.782 respectively.

The green pigment involved in photosynthesis is chlorophyll. Chlorophyll is green in appearance because it absorbs red and blue light, making these colours unable to be seen. It is the reflection of the green light that reaches out eyes, giving chlorophyll a green colour. This green light that can be seen cannot be used by the plant for photosynthesis. Therefore, theoretically growth should be inhibited in the plants only exposed to green light.

Since Freshwater biomes are found all over the world, the types of plants and animals that live in these waters can be different. Some examples of plants that may inhabit a Freshwater biome are grass, spike rush, water lilies, cattail, and sometimes trees. Most plants living in these waters are not recognized by humans. Animals that live in these biomes are frogs, turtles, snakes, fish, and sometimes alligators. Insects like mosquitos also inhabit these biomes greatly. Animals such as raccoons and earthworms live on the land surrounding the biome, but depend on the biome to survive. Some animals, such as beavers, live in both the water and the land surrounding it. Algae also plays a big role in a Freshwater biome ecosystem.

This article presents the impact of low oxygen waters on Chesapeake Bay Zoo-plankton. Anoxia (oxygen deficiency) reduces the cope-pod abundances in Chesapeake's bottom waters, and disrupts the cope-pods inhabits towards the bottom and their migration to the surface. Also, cope-pods will have limited survival ability in low oxygen conditions in bottom waters. Results show the number of cope-pods surviving for 24 hours were significantly lower in water containing smaller milligrams of oxygen liter. Some will have a greater chance of survival because of their low metabolism that requires smaller oxygen. Low oxygen reduces the filtration rate of zoo-plankton and the filtration rate of the fresh water. Decreased filtration reduces metabolic rate in low-oxygen conditions, generally occur in the mesohaline part in summer. Low oxygen-levels may cut phyto-plankton and Cope pod's production. Lower oxygen concentration prevents hatching and the growth of eggs, which eggs could survive a few days if temperatures are cold and as the eggs sink to the bottom.

The greatest difficulty met in this “experiment” was lack of organisms to sample in the bay water. A likely reason for this is the recent storm that have reached the area. Hurricane Harvey, originally a category 4 at landfall on the 25th of August, had a huge impact on Galveston and the surrounding areas. With record-breaking rainfall, tons of freshwater and inland runoff were dumped into the bay area. Being such an enclosed and diverse habitat near a large human population, Galveston Bay is very vulnerable to accelerated habitat degradation in comparison to other estuary-like habitats. Studies have suggested that abundance and diversity of both zooplankton and copepods have a positive correlation

Freshwater invertebrates make up a vast amount of Alabama’s Biodiversity. Biodiversity is the variability among living organisms from all sources, including terrestrial, marine, and other aquatic ecosystems. Mollusca which are also known as snails are one the most commonly encountered in Alabama. They spend the majority of their life in an aquatic ecosystem. As a matter of fact, Their are 180 different species of Mollusca in Alabama.There are unique species associated with every type of aquatic habitat from the Canadian Arctic to the Everglades of Florida. Mollusca are highly valued because they are either a food source or biological indicators for a healthy habitat.They prove immensely beneficial both economically and medicinally. Alabama

Our end results only supported to some extent our hypothesis that increasing numbers of brine shrimp would directly cause decreases in algae concentration. Our hypothesis, if applied to only the jars of 3 and 6 brine shrimp, would be highly supported, due to the significant difference in algae concentrations. Evidently, the more shrimp that were present in the ecosystem, the less algae that were available at the end. In an ecosystem with more consumers, the consumers demand a higher amount of nutrients from the environment, or more specifically, the producers. And as the consumers develop and grow, those demands also grow. And thus, when we increased the amount of brine shrimp, more algae were consumed per unit time. Though the rate of consumption from the brine shrimp did not exceed the rate of growth of the algae in any jar, the

It was interesting to read that the hypothesis provided by the scientists turned out to be opposite of what happened to Valley Creek. The macroinvertebrates were already living in a low quality creek full of pollution, so I would have also expected their population to decrease after introducing a predator to their environment. The crayfish reminded me of the keystone species sea stars, that I learned about through a lecture on communities and ecosystems. The study conducted on crayfish was similar to a study conducted on sea stars, except they were removed from coastlines instead of being added to see the effect they had. The sea stars were believed to have a negative effect on the coastlines since they preyed on mussels, but it turned out

The outcome of this lab proved for the prediction to be true. The organisms in the aquatic chamber died out and the water quality slowly deteriorated before the lab ended. Although the organisms eventually died, there was a time when the aquatic chamber was able to support life. The aquatic chamber had its own food chain where the fish ate the plant to stay alive. Furthermore, the water quality of the chamber began to deteriorate over the few weeks becoming a cloudy murky brown color.

Ecosystems can be impacted by many factors such as climate, natural disasters, human pollution, water shortage etc. All of these are the factors that controls an ecosystem’s stability, productivity, and sustainability because these factors can kill, drive out, intoxicate, and destroy species’ natural habitats. These factors are spontaneous and temporarily and these can impact a very specific species which in turn can cause the collapse of an entire species. These species are call the Keystone species and they are organisms that are basically the arch or the support of the food chain in an ecosystem. They are special because without them, the population will be impacted negatively, such as too much overgrazing, overpopulation, and lack of food or predators for some animals. Keystone species are important

Question= Have there been any declines in the riverine ecosystem of the Nisqually river and if so what are the declines caused by?

The authors mention that oxygen shortages would not be a problem because algae and plants can substitute atmospheric oxygen from converting atmospheric nitrogen.

Choose one specific lake, river, sea or bay. You will be researching biotic and abiotic factors about that lake ecosystem.

The purpose of this experiment is to understand the effects of nutrient enrichment and eutrophication, using samples of water from Rio Salado and Encanto Park. The samples will contain different concentration levels of nitrogen, phosphorous and nitrogen and phosphorous combined and the impact it has on algae growth. The results recorded showed that the nitrogen concentration levels had a little change, phosphorous levels had a higher change and phosphorous and nitrogen combined had a significantly higher change, resulting in higher algae growth. The results showed that phosphorous indeed is a limiting nutrient in algae growth, but to achieve the highest growth rate, both nitrogen and phosphorous need to be combined.

Even though this experiment may sound insignificant, it can be used for a real world application. When carbon dioxide is absorbed by seawater, chemical reactions occur that reduce seawater pH, carbonate ion concentration, and saturation states of biologically important calcium carbonate minerals. This is called ocean acidification, OA for short. Carbon pollution is warming the climate, but it is also making oceans more acidic. Oceans absorb about a quarter of the carbon dioxide, humans produce this by burning fossil fuels each year, that is changing their basic chemistry. This can be bad for creatures in the ocean that have calcium carbonate in their shells or skeletons, this includes mollusks, crabs, and corals. Those creatures are having a hard time living as the sea is changing because of the acidic water, it makes it harder for them to grow their shells. It's not just creatures with shells, if you live in the ocean bad things could still