dissolved carbon dioxide for enhanced photosynthesis in the ..

The agarophyte has been shown to take up carbon in this fashion. It has carbonic anhydrase both inside the organism and out. Inhibiting either of these types of carbonic anhydrase greatly decreases photosynthesis, but adding an anion transport inhibitor does not. Adding TRIS buffer to the extracellular fluid (seawater) also has no effect (the purpose of which is discussed in the following section relating to proton pumping as a possible mechanism).

The economic loss due to these red tides has been reported to be 240 million US dollars.

This should give you what you need to understand the food web discussion in Lesson 8, and all about the requirements of photosynthesis in the sea and why nutrients are important and, at times, problematic.

Harmful Algae & Red Tide Regional Monitoring Program …

: Although bacteria case many illnesses (including dental caries, strep throat, cholera, and tuberculosis) and cause the harmful "red tide" seen in many lakes, bacteria also have many positive effects, including releasing nitrogen to plants and decomposing organic material.

Red Tide." The organisms ..

Carbon dioxide is present at about 350 ppm in normal air. It was lower in the past, and has been steadily rising for the past 100 years or so, largely due to the burning of fossil fuels. A liter of air weighs about 1.3 grams, so at 350 ppm carbon dioxide, that liter of air contains about 0.00046 grams (0.5 mg) of carbon dioxide. This very low amount, coupled with the kinetic issues (i.e., the slowness) of carbon dioxide's entry into seawater, explains why it is often difficult to keep reef aquarium water aerated enough to keep the pH from rising when processes such as photosynthesis or the addition of consume carbon dioxide.

06/11/2012 · I've tried google with no joy

All plants, algae, and cyanobacteria which photosynthesize contain the pigment chlorophyll "a." A second kind of chlorophyll is chlorophyll "b", which occurs only in green algae" and in the plants.

AQUATEXT - Aquaculture Dictionary

Freshwater aquarists caring for brightly-lit planted aquaria have long known the, and often to the aquarium water in one way or another to supply those tanks' substantial need for this material. Reef aquarists, on the other hand, might have just as much or more photosynthesis taking place, but rarely worry about adding carbon dioxide. Why? That's one of the topics to be detailed in subsequent sections of this article. The answer is not that seawater contains more CO2 than does freshwater, but rather that seawater contains other chemicals that can, in some cases, be used to supply carbon dioxide.

References - Environmental Measurement Systems

The conclusions in this report are solely those of the student authors. Jacinta Matthias
Mary Okitktm
Deanna Hunt
Ariel Williams
Elizabeth Strongheart
PO Box 20129
Kotlik, AK 99620 We probed into environmental problems and issues that have caused damages to oceanic life, such as red tides, algal blooms and eutrophication (something we never heard before) that massively kills marine organisms.

Glossary of Terms: C - Physical Geography

There are several thousand species of phytoplankton. The two major groups that have representative HAB species in California are diatoms and dinoflagellates. Diatoms are unicellular organisms that have yellow-brown chloroplasts and their cell walls are made of silica almost like a glass house. Dinoflagellates are unicellular algae with two flagella which enable them to swim. Dinoflagellates can be autotrophic (photosynthetic) and/or heterotrophic (eat other organisms).