Algae

the third global coral bleaching on record. Climate changes, such as El Niño, and unnatural carbon dioxide levels is what contributes to the potential bleaching of corals which is life threatening. These conditions cause corals to expel symbiotic algae from their tissues, which is the…

for the growth of plants and animals (1). That is why having the right levels of phosphorous in the water is so essential. If too much phosphate is present in the water the algae and weeds will grow rapidly, may choke the waterway, and use up large amounts of precious oxygen (in the absence of photosynthesis and as the algae and plants die and are consumed by aerobic bacteria.) The result may be the death of many fish and aquatic organisms. Experimental Methods First, grab seven 150 mL beakers…

What are some common symptoms of food poisoning? Based on those symptoms, which dinoflagellate do you think is responsible for the outbreak? A bloom of dinoflagellates can change the water color colloquially known as red tide. Red tide can infect shellfish and cause shellfish poisoning if people eat the bad shellfish. Some symptoms of shellfish poisoning are nausea, vomiting, and diarrhea Explain how an HAB outbreak can have a devastating economic impact. There would be a bad impact on…

nauplii reach approximately 1 mm in length (about 3 to 4 days), water will be drained out using filters and about 100 ml of the concentrated nauplii will be collected and feed with appropriate algae source in 2 tanks. Feeding will be repeated once the Artemia has cleared the tank of motile, suspended algae, typically 2 to 4 days depending on the density and size of the Artemia. During the six-week spiking experiment, HgT and isotopic ratios will be measured in Artemia samples every week…

Sixty genera of coral have a symbiotic relationship with the algae zooxanthellae. Only some deep water and cold water corals can survive without them. This symbiotic relationship benefits both organisms, the zooxanthellae provides the coral with glycerol, glucose and alanine. The coral provides the zooxanthellae with nitrogen and protection against predators. The degree to which the organisms depend on one another varies between species. (Rupert and Barnes, 1994). Coral bleaching occurs when the…

slash after we put on all of our gear.She gave me a thumbs up and we headed down further and further. After a few minutes we saw a dark figure below us. We swam down to the figure it was metal and wooden but coverd in a thick layer of slimy green algae. We looked around the boat searching for a name finally Skye saw something under the algae.I wiped the ooze off and read it carefully…

3.4 Case Studies 3.4.1 Biofuel from GM Macro algae Hydrocarbon biofuels are produced by genetically modified seaweed which are obtained by inserting genes from high hydrocarbon producing micro algae into high growth seaweed species. Botryococcus braunii (BB) a green micro algae that produces large amounts of aliphatic hydrocarbon molecules is used as a source for genetic material. The genes that produce hydrocarbon in BB are identified, removed, cloned and subsequently inserted into high…

temperature and if the temperature increase then the zooxanthellae leaves their tissues making the coral unable to produce food on it's own, thus killing it. (5) If the temperature drops then a symbiotic algae present in the coral that helps it to get food lowers the amount of carbon transfer from the algae to the coral thus killing the coral.…

deeper into the reasons of why and how this phenomenon occurs. Red tide is often overlooked despite its harmful effects, but it can be as costly and damaging as other natural disasters. Red tide starts by organisms called dinoflagellates (also known as algae or plankton) that quickly populate faster than normal due to high salinity in the oceans, thus causing the reddish-brown tint to the water. Karenia Brevis is the specific type of dinoflagellate that is the toxic contributor to the red tides.…

When coral gets stressed, they expel all the algae that provides it with about 90% of its energy, in a state of near death. Instead of the bright pink or yellow, or whatever bright color the coral originally was, it turns to a pale chalky white. If whatever is causing the coral to stress out continues, like the water is still too warm, it starts to starve and dies. If whatever is causing them stress goes away after a little while, it is possible for the coral to come back and regain their color…