Preview

The Effects of Red Tide

Good Essays
Open Document
Open Document
368 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
The Effects of Red Tide
The Effects of Red Tide

Recently released statistics show that 2005 was one of the worst years ever for Florida’s manatee population. One of the leading causes of death was “Red Tide”. Scientists have now linked the effects on the manatees to the human population. Red Tide, or blooms of the algae Karenia brevis, release toxins which cause respiratory effects as well as immune depression. The red tide events seem to be increasing, especially on Florida’s west coast. One controversial theory for this increase says that nutrient pollution from runoff may contribute to the widespread growth of the algae. The National Institute of Health began studying the problem in 2000. Their study looked first at the effects of the red tide toxins on mice. The mice surprisingly did not show any respiratory effects, but did show signs of immune suppression. This evidence supports recently documented new illnesses in dolphins and other marine animals, and causes concern for the far reaching implications on the exposed human population. The research team also reviewed health records for local emergency rooms, which showed that respiratory problems such as asthma and bronchitis increased during the red tide events. When the team investigated further they found that while red tide events were thought to mainly affect the respiratory system, research showed that the manatees were also killed by eating sea grasses that contained the toxins long after the blooms were gone. This caused them to believe that humans may also be affected by eating seafood exposed to the red tide toxins. Although “Red Tide” has always been thought to affect mainly marine life, these recent studies have shown it to affect the human population also. The far reaching implications could be enormous, especially for the people who live in often infected areas, as well as for the seafood industry. Further research is necessary to determine how the brevotoxins may be controlled, and how



Cited: Harbor Branch Oceanographic Institution. “Red Tide Impacts Increasing for Endangered Manatees and Humans.” Biology News Net (Feb 26, 2006): 1-3.

You May Also Find These Documents Helpful

  • Good Essays

    Microcystis is a form of cyanobacteria, which is not a true form of algae but a more photosynthetic bacteria (Dalogul, 4). High levels of algae accumulate on the surface of lakes producing large blanket like abundance of algae called blooms (Borre, 1). Environmental impacts caused by algae can be seen through low oxygen conditions produced from the decay of excessive amounts of algal growth. When the conditions permit it (often during warm weather), the algae form at a more substantial rate and facilitate a toxic bloom. Blooms do occur naturally, however they become enriched with nutrients (phosphorus fertilizer run off) from industrial and agricultural influences (Dalogul, 3). Powerful toxins produced can travel through the food web of a marine ecosystem and affect seabirds, marine animals and humans, which potentially can be fatal (Seaweb, 2). Humans can contract aliments from the algae as well, by breathing air borne toxins by coming in contact with it physically or consuming contaminated shellfish. There are two types of toxins produced by Microcystis: Neurotoxins and Hepato-toxins These toxins affect surrounding ecosystems, and more specifically marine life of the Lake. Neurotoxins will affect nervous and respiratory systems, which cause muscle tremors, staggering and often within 30 minutes, death. Hepato-toxins, affect the liver, which results in a slow…

    • 973 Words
    • 3 Pages
    Good Essays
  • Better Essays

    Sci 256 Week 3team Paper

    • 1655 Words
    • 5 Pages

    Toxins from horticulture have influenced the marine 's biological community in ways that may not be reversible, and may likewise be gradually hurting waterways, streams, and waterfront waters. Pesticides and compost are two noteworthy segments that have irritated the marine 's environment; both contain unsafe chemicals that can be perilous to living life forms in the water. Compost and pesticide keep running off from substantial ranches may have started blasts of marine green growth which may disturb the sea 's biological community by creating monstrous sprouts in marine waters (Schwartz, 2005). Winds cause nitrogen and different supplements from the ocean bottom to surface, which advance the development of green growth called phytoplankton. Phytoplankton is a primary wellspring of nourishment for some living creatures in the marine waters. Farming toxins may have activated phytoplankton to deliver unsafe blossoms in tides, which are radiating noxious poisons to marine life. These noxious poisons are hazardous in light of the fact that the oxygen levels are step by step decreasing in waters, which may have fatal results for marine life (Schwartz, 2005).…

    • 1655 Words
    • 5 Pages
    Better Essays
  • Satisfactory Essays

    Marine Bio 4.03

    • 262 Words
    • 2 Pages

    r 1. Name two types of sickness you can get from phytoplankton in Florida, and describe how you can get them. What symptoms led to the diagnosis of our patients? Some of the major diseases are NSP, and PSP which typically come from Brevetoxins, Saxitoxins, Gonyautoxins, & many more. The typical symptoms includerespiratory distress, allergic reactions and skin conditions…

    • 262 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    The Blue Crab supports the Chesapeake Bay of being healthier than expected due to it helping the cycle continue to circulate and as it continues to circulate the organisms which consume other living things which contaminate the water which keeps it cleaner as well as healthier than it is expected to be. Though the water does become a little bit healthier it does not become healthy enough for all the organisms to be able to live an ordinary life cycle and easily survive. As time passes by and the life cycle continues there are several organisms which interfere with the cycle such as the algae which is harmful to many aquatic plants and animals. This alga plays quite a large role in decreasing the population of the blue crabs as well as other organisms. The reason this algae is harmful is because it intoxicates the Chesapeake Bay water which leads to intoxicated animals and obviously to the death of the animals. Another way algae interferes with the cycle is that in some occasions there is a high abundance of algae which leads to the blocking of the sun and with out sun the plants are unable to grow and they die and this harms the blue crabs as well as other plant eaters. Also the blocking of the sun may kill fish and also causes there to be nasty odors. The alga has not only harmed the aquatic plants, animals and the…

    • 1114 Words
    • 5 Pages
    Good Essays
  • Good Essays

    “Imagine this. There are glowing lights all around a ship in the middle of the ocean. An 18th-century sailor would most likely think that a monster was surrounding the ship—ready to ingest it and all the people onboard. Today, we know that the lights come from the phosphorescent glow of jellyfish. Although swarms of jellyfish can be beautiful, they can also be a central part of an ecological disaster in the making.” These sentences are quoted from writer Rosalind Fonem. She wrote about the effects of growing jellyfish population in her story called “Jellyfish Take Over”. The study of jellyfish population does, in fact, make her story true. In seas everywhere, the overpopulation of jellyfish has caused many fishermen to be out of jobs, power to be shut down because of clogged pipes, and fish population to decrease. But recent studies have shown that there is in…

    • 451 Words
    • 2 Pages
    Good Essays
  • Satisfactory Essays

    As mentioned in the paragraph above I mentioned that it could ruin marine life, that was no joke. The animals could become homeless because the tide would retract so any animal that lives close to shore would die. Also some animals depend on the movement of the tide to live. The reason all of these animals are going to die is because the tide would be retracted to ⅓ of its normal size.…

    • 337 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    Manatee Research Paper

    • 706 Words
    • 3 Pages

    The most pressing human-related threat to manatees is injury and death resulting from collisions with watercraft. In 2000, at least 78 manatees were killed by watercraft. Another important threat is loss of reliable warm water habitats that allow manatees to survive the cold in winter. Natural springs are threatened by increased demands for water supply and aging power plants may need to be replaced. Deregulation of the power industry may also result in less reliable man-made sources of warm water. Sea grass and other aquatic foods that manatees depend on are affected by water pollution and sometimes direct…

    • 706 Words
    • 3 Pages
    Good Essays
  • Good Essays

    On October 19th we arrived in Maui, Hawaii. We were set to have a great time! We could not wait to begin our adventure on exploring the island. We knew that it would be great so we set off to a place called But, we had know idea that we would witness something horrific. We had heard a lot about this place that was supposably a great place to snorkel. As a result, on October 21st we had decided to go to the slaughterhouse. At this place you can see many moray eels and beautiful tropical fish. The reason why it was named the slaughterhouse is on occasion the bay will get low and the coral rocks will appear throughout the bay and becomes very dangerous.…

    • 873 Words
    • 4 Pages
    Good Essays
  • Good Essays

    Climate change has widespread effects. It doesn't just affect weather and temperature. It will also have lasting effects on the ocean and the ecosystems within it. Coral reefs get hit hard by the temperature of the water getting warmer. “Warming of as little as 1°C causes coral bleaching, a state in which the tissues of the coral become colorless because of the loss of the zooxanthellae”(Hoegh-Guldberg,Donner,pg. 9, par 3). This bleaching can stress the reefs and this can effect important functions of the coral. “Moderate bleaching results in stress that causes reduced growth rates and reproductive output, whereas severe bleaching results in coral death. Bleaching also appears to make corals more vulnerable…

    • 678 Words
    • 3 Pages
    Good Essays
  • Good Essays

    This seems to all lead back to runoff, The causes of the blooms are excess nitrogen, and phosphorus. This is like steroids for these microorganism. What it does is it brings the population of the algae up to a certain extent , then it crashes due to the fact that there is no more nutrients. It seems that the nitrogen, and phosphorus is coming from farm fields, and fertilisation. This happens when there is a major rain storm which picks up all of the fertilizer, garbage, and other harmful substances that cause this problem. Roads act as slides for these harmfull pollutants that all seem to lead straight to the waterways. This can be a huge problem because the more urbanisation and building that an area can go through there will be less land to suak up the harmful and destructive types algae. These blooms really screw up the water quality of chesapeake bay, they end up consuming almost all of the oxygen until there isn't any and then everything dies. This is obviously a huge problem. No body know how long that water body will withstand these torturous and extreme die offs, and blooms. According to http://www.chesapeakebay.net/blog/post/the_abcs_of_habs_how_harmful_algal_blooms_impact_the_bay residents are currently trying to drive less, upgradeing septic systems, picking up pet waste, and not useing fertilizerser on there…

    • 870 Words
    • 4 Pages
    Good Essays
  • Good Essays

    For most beachgoers jellyfish are just a nuisance. During certain times of the year jellyfish tend to pop up on the shore line and make our beach day and little less carefree. Moms are reminding their children to pay attention for the jellyfish so they won’t get stung! This is the least of the problems they are causing according to new information. In a recent Popular Science article, it states, “a ten mile wide and 42 foot thick swarm of baby mauve stingers decimated Northern Ireland’s farmed-salmon population. Overnight 120,000 fish were reduced to a floating mass of carcasses by billions of small jellies….” Wow, billions is a lot of jellyfish! This could definitely be cause for alarm and seems to build a case that the jellyfish could be changing eco systems.…

    • 485 Words
    • 2 Pages
    Good Essays
  • Good Essays

    Yooooooooo

    • 625 Words
    • 3 Pages

    Nutrient pollution- Fuels the growth of algae blooms that block sunlight from reaching bay grasses and rob the water of oxygen.…

    • 625 Words
    • 3 Pages
    Good Essays
  • Powerful Essays

    Plankton Case

    • 1575 Words
    • 7 Pages

    Plankton is a microscopic drifting organism present in most of the water bodies around the world. There are three categories of plankton, but only Phytoplankton and Zooplankton are of our interest. Phytoplankton is the primary producer and forms the base of food chain in most water bodies. Among these phytoplankton groups, there are some species that harm aquatic organisms mechanically or by toxin production either at low concentrations or by forming high concentration blooms known as Harmful Algal Blooms (HABs). When doing aquaculture in natural water bodies like lakes, rivers and oceans, these harmful plankton could seriously damage the stock. So, monitoring for harmful plankton species is required.…

    • 1575 Words
    • 7 Pages
    Powerful Essays
  • Good Essays

    Due to the movie Jaws, shark attacks have become sensationalized , and the common misconceptions of the creature, most people do not know how vital they are to the environment. Sharks are being brutalized by fishing boats. Fishermen have been known to catch the shark, cut off its’ fins, and toss the species back in the ocean. The fins are used for consumption such as shark fin soup which is considered a delicacy in many countries. Without their fins, the sharks are unable to maintain their buoyancy and therefore, die because they have lost the ability of locomotion. Due to this brutality, the Union for the Conservation of Nature has declared 64 shark species endangered and since the 1970’s sharks in the Atlantic Ocean have declined by 50%.…

    • 833 Words
    • 4 Pages
    Good Essays
  • Good Essays

    In the past, before much was known about red tide and still some times today, surfers have reported surfing and have come out of the water with swollen lips and eyes. Humans can often feel effects of Red tide as soon as they get out of their car at the beach. The harmful bacteria can strike within that first smell of ocean air. Many times, people dismiss the signs way too quickly, however, because they are so subtle in the average person. A simple cough or dizzy spell could be signs of bacteria in the air brought on by Red Tide. For people with respiratory diseases, such as asthma, the trigger signs can cause more discomfort. Causing people to have an asthma attack or worse. Most of the time, the treatment can be as simple as moving away from the affected area and treating symptoms systematically until they resolve. Some other symptoms can include runny nose, dry cough, itching or burning in the throat, and tearing in the eyes. Symptoms for asthmatic people can include wheezing, tightening of the chest and shortness of breath. In the water, the main concern is people who have sensitive skin because they are likely to contract a rash. For those who love playing in the sand, can they be affected? Yes, when the foam from the water comes up to the sand, you can be affected because the foam can be about ten times more toxic than the water itself. While the signs might be worse in people with respiratory problems than other people, it is possible for it to be deadly for all human types depending on the type and how long they were exposed to Red Tide. That being said, suppose you consume shellfish with toxins, these can cause more serious gastrointestinal problems during digestion with nausea, vomiting and diarrhea. However, most commercial fishing companies test for toxins so it's less likely for people to consume it if they buy from a commercial catcher. If, however, you fish on your own, you could be…

    • 1111 Words
    • 5 Pages
    Good Essays