Dinoflagellates

Negative impacts of Dinoflagellate algae: economic, ecologic, and human health hazards ABSTRACT Increasing pollution both atmospheric and oceanic are encouraging algal growth and increasing the frequency and geographic range of high density dinoflagellate blooms. Public health and economic impacts, as well as negative ecological effects of the aquatic environment are increasing the scientific research done on toxic dinoflagellate species. Contaminated bivalves are causing paralytic shellfish

One of the organisms which is responsible for the discoloration of water is Karenia Brevis. This is commonly known as Red tide in many parts of the world. Karenia brevis (formally known as Gymnodinium breve and Ptychodiscus brevis) is marine dinoflagellate Protista, commonly known for its toxin, is responsible for the Florida and Texas Red tide ( Global Biodiversity). Scientists also refers to K. brevis as Harmful algae blooms as it produces series of bretoxins (neurotoxins) which contributes to

Using certain methods such as electron microscopy, these dinoflagellates were searched on. They were also identified. Chapter 5 : In this chapter the fact, or crisis of the presence of an algal bloom in the oceans of the world such as the red tide (toxic). This is then assumed to be one premonition of the upcoming

broad yet complex topic that involves the mutualistic and obligate symbiosis between corals and dinoflagellate algae of the genus Symbiodinium, commonly referred to as zooxanthellae. Bleaching occurs when a significant concentration of the zooxanthellae are no longer fixed on the coral, which occurs due to an inability to perform their role (Wooldridge and Done 2009). With the often colorful dinoflagellate algae gone, the coral is left as a white carbonate skeleton (Douglas 2003). There are many effects

water soluble alkaloid neurotoxin known as saxitoxin from shellfish (mussels, clams, cockles, oysters and scallops) from waters contaminated by Algal blooms. The algal bloom that forms in the water has a fluorescent greenish hue and contains dinoflagellates that produces these neurotoxins and is found in both the temperate and tropical areas. Along with medications, the symptoms of may PSP resolve with the excretion of the toxin. Patients are treated by providing them with respiratory support and

Enviropigs: The Future of Transgenic Animals, The Environment, and the Global Market. For thousands of years, the usage of livestock has been one of the primary sources of food for human consumption. From cows to goats, and even horses, humans have raised these animals in order to obtain a good source of food and fiber, as well as the increase of labor. The three most consumed livestock in the world are cattle, chicken, and pigs; out of the three, pigs are the ones that have one of the biggest environmental

Dinoflagellates are eukaryotic microorganisms that are commonly found in marine environments. They are a large group of flagellate protists that are also identified as algae. Most dinoflagellates possess plastids, a double membrane organelle that stores pigments used in photosynthesis [1, 2]. However, some dinoflagellates only acquire these temporarily by digesting food algae [1]. A large portion of dinoflagellates are mixotrophic, phagotrophy with photosynthesis [3]. There are roughly 2,000 species

Growing up in one of the most biologically diverse estuaries in North America impacted my perception on nature from my first thought until now as a young adult. If you are from the south most people get a glimpse of how pretty Florida is but unless you fish, very few people get to check out the Indian River Lagoon. This massive body of water stretches whopping 156 miles and surprisingly takes up over 30% of Florida’s east coast. Here the Atlantic collides with fresh water and creates an epic battling

Introduction Amnesic shellfish poisoning is a rare type of food poisoning caused by eating seafood that contains a poison (toxin) called domoic acid. Domoic acid is produced by a saltwater form of algae, and it is often eaten by shellfish, such as clams, oysters, and mussels. You can get sick when you eat shellfish or crab that contains domoic acid (is contaminated). Cooking or freezing the shellfish does not kill the toxin. Domoic acid causes stomach and intestinal problems. It can also cause problems

Bioluminescence in Dinoflagellates Madison Richard Chemistry I H, 6th period Mrs. Kris Clements October 24th, 2014 Problem Does changing the amount of exposure to light a sample of Pyrocystis lunula receives affect it’s bioluminescence? Hypothesis The more light a Pyrocystis lunula culture is exposed to, the more bioluminescence it will exhibit. Variables and Control Independent variable- Dependent variables- Controls- Materials 6 culture tubes of Pyrocystis lunula 3 boxes with opaque lids