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More handpicked essays just for you.
Impacts of marine pollution on the environment
Impacts of marine pollution on the environment
Impact of human overfishing on coral reef ecosystems
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Scourge of the Lionfish The article that I have chosen to write a summary of is the “Scourge of the Lionfish” article series by Carl Safina located at The New York Times website. There are 4 parts to this article, each basically talking about the invasive species of red lionfish that have taken over the Atlantic by storm, how they are impacting the marine life around the Atlantic, and some different ways fishermen have tried to gain control over the ever increasing population of these voracious predators. The article begins in part 1 by explaining the origin of the red lionfish’s invasion 20 years ago. They first occurred in south Florida and also the Caribbean and are spread out from a very lengthy distance as far down as north eastern …show more content…
The reef cliffs then serve a good establishing ground for coral polyps to grow from. If the young parrotfish and surgeonfish are in danger of such decline, that also means that coral will ultimately suffer in decline as well which is very bad for many other organisms that depend on coral reefs to strive. There are many factors contributing to the decline of coral reefs such as climate change, water acidification, overfishing, and also pollution. Red lionfish are pushing that decline at a faster pace since their population in the surrounding area and allowing these corals to get smothered with uneaten algae and …show more content…
The point of the lionfish derby was to shoot lionfish for cash prizes. The prizes ranged from $1,000 for the largest amount of fish shot and $500 prizes for the largest and smallest lionfish shot. There were also $1 prizes for each fish caught. With a handful of boats sailing into the ocean, Safina explains the roughness of the Gulf Stream current and how it was difficult to spear lionfish compared to the locals who had better experience with where the red lionfish were located and managed to spear 1,000 fish in the hunt. Safina reminds the reader that the derby was helpful for the native-fish in those local reef populations and made for a delicious feast, but the lionfish are unfortunately still a big
Known as Pterois Volitans in the animal kingdom, also called the red lionfish, is a sight to behold in the tropical waters as they swim like an underwater butterfly in the sea. In waters not native to their origin, as they are from the Pacific and have predators that will have them for a snack. Invasive to the Caribbean Sea they have rapidly reached the Gulf of Mexico and far south, spreading to parts of South America. The lionfish has become a persistent pest that’s more trouble than what it appears to be, attractive yet deceptive with a striking pattern of white and red stripes. In the New York Times article, A Call to Action… and Even Rodeos, scientists say that, “from 2005 onward, lionfish have become the most numerous nonnative invasive species in the world.” The average pound fish is one of nature’s clever creations, a venomous foe with spines and an infinite appetite that reproduce quickly. Invasive species are notorious because they have no or almost nonexistent natural predators and they are adapt to their new home very well. The biological adaptations of this fish has caused both ecological and economical mayhem, serious measures have been taken up to control their population as well as to protect our coral reefs.
In this entertaining, search into global fish hatcheries, New York Times writer Paul Greenberg investigates our historical connection with the ever changing ocean and the wild fish within it. In the beginning of the book Paul is telling his childhood fishing stories to his friends, that night Paul discovers that that four fish dominate the world’s seafood markets in which are salmon, tuna, cod, and bass. He tries to figure out why this is and the only logical answer he could come up with is that four epochal shifts caused theses wild fish population to diminish. History shows that four epochal shifts happen within fifteen years causing certain fish species populations to diminish. He discovers for each of the four fish why this happened to
Kurlansky’s biography of a fish that changed the world begins the literary technique in media res. The decision to start the text of this book in the midst of Sam Lee, Leonard Stack, and Bernard Chafe’s adventure aboard a fishing skiff in Petty Harbor was great in that the occurrences there hint at one of the themes in the book. That theme being that the cod population has drastically declined and that human intervention is or may be necessary to prevent the extinction of the species.
4. Taylor, Sharon K. 1997. Florida Panther Biomedical Investigations. Florida Game and Fresh Water Fish Commission.
Within the state of Florida there are dozens of individualized, non-profit organizations making an effort to help the local wildlife. The local land and marine wildlife includes birds, geckos, frogs, snakes, panthers, manatees, sea turtles, fishes, sharks, corals, lizards and many, many more. Florida State is located on the Southeastern tip of the United States providing a unique opportunity for conservation of salt-water animals. While there are animal conservation efforts taking place all over the world, this essay will focus on two animal species that humans are specifically trying to save in Florida State. The two main animal species of focus are manatees and sea turtles.
Lionfish are not currently listed as threatened in their native range. However, the increase in pollution in coral reefs can negatively affect the lionfish's primary food sources (NOAA, 2011). If lionfish are unable to adapt to declines in their prey species, their numbers will decrease. Although between the increasing reef pollution and the Lionfish’s voracious appetite reef populations will more than likely be damaged beyond repair, they may even be close to elimination by the time the Lionfish population actually declines (Albins, 2013).
The increase in ocean temperatures are causing the reef to die out; reefs structures don’t have the ability to keep up pace with the ever so changing climate 4. Rigel suggests that coral reefs will eventually die out from the erosion of the warm ocean4. The increase in climate change is leading to ocean acidification. Much of the gases that enter our air from pollution also dissolves into the ocean. With this occurring, corals cannot absorb the calcium they need to maintain their skeletons. The stony skeletons that support coral reefs will dissolve. If nothing is done to stop so much carbon dioxide from going into the atmosphere, this will increase and more and more coral reefs will be destroyed and die
Corals provide shelter for nearly one quarter of all known marine species. The reefs are home to over 4000 species of fish, 700 species of coral, and thousands of other forms of plant and animal life. Living coral reefs are the foundation of marine life, and this also means that they are essential for human life, but all over the world they are dead or dying because people are destroying them at a very fast rate. Already 10% have been lost, and there are predictions that 705 of all corals on the planet will be destroyed in 20 to 40 years unless people stop doing what they are doing now – i.e., pollution, sewage, erosion, cyanide fishing, bad tourism.
Coral Reefs are said to be the “tropical rainforest” of the sea. They are home to over 25% of all marine life (http://coralreefalliance.org.stories/storyReader$77). Over the past few decades they have been subjected to destructive anthropogenic practices. Some of the major threats to coral reefs include sedimentation, water pollution, harmful recreational activities, and global warming. All of these things cause stress on corals and can potentially cause mortality. Corals are made up of two parts, a polyp and zooxanthellae. A polyp is a calcerous body that grows from a hard part of the ocean floor. Zooxanthellae is a photosynthetic algae which lives in the polyp and provide energy for themselves and the coral. In many cases, corals undergo “bleaching,” which is a process where corals lose the zooxantheallae or chlorophyll pigment, and turn white (Wilkinson et all). After bleaching corals can survive for several months. It is possible for corals to recover by hosting more zooxantheallae, but it can take between 5 and 50 years for them to recover completely (Wilkinson et all, 1999).
My friend had invited me along with him and his family to the ocean. It was vacation for the family, but for him and me it was the beginning of a week of serious business. We had an obsessive hobby to pursue. As avid and long-term freshwater fisherman, we were thrilled by the thought of catching those large and exotic saltwater fish we had seen on television a billion times before. Yet little did we expect there to be such vast differences between our freshwater fishing and the saltwater fishing, which we were about to pursue. We learned through trial and much error that in order to have a successful saltwater fishing experience we had to make adjustments to all the freshwater tackle, tactics, and gear we knew.
Now that corals have been briefly described we can see why the effects of climate change damage coral reef systems. Ocean acidification is one result of climate change. Acidification is caused by an increase of carbon dioxide in our oceans and leads to a decrease in the pH levels of seawaters. This pH decrease reduces the ability of corals to make their hard skeletons. Rates of coral calcification on the Great Barrier Reef and many other reef systems around the world have declined by 15-20% since 1990 due to increasing thermal stress (De’ath 2012). It has already been mentioned that the oceans are absorbing almost all of the excess heat from climate change. This effects coral reef systems in what is known as coral bleaching. The term bleaching refers to the loss of corals’ colors. A coral’s color is the result of the zooxanthellae present. When water becomes too warm the
This article discusses how important the organisms symbiotic with coral reefs are, as well as how important coral reefs are to our environment. Also explained is how natural and non natural things things like hurricanes and overfishing affects them. A study is quoted about how water acidity also plays a role in the bleaching of corals. Lastly, restoration and conservation efforts are discussed and how we could possibly help our oceans.
Coral reefs are well known for their colorful array of marvelous sights including a parade of exotic flora and fauna. They are said to be the foundation for a quarter of marine species, and are a crucial support for human life as well. The coral reef ecosystem is a diverse collection of species (ranging from microscopic to larger-than-life in size) that interact with each other and their physical environment. If any piece of a coral reef is harmed or removed the entire community can be seriously affected, even to the point of collapse. Unfortunately, human impact has resulted in long-term stresses that, unlike the short-term stress of natural disasters, coral reefs are not as capable to recover from. “Approximately half of the world’s coral reef ecosystem resources are considered by scientists to be in 'poor' or 'fair' condition and have declined over time due to several anthropogenic threats” (“Status of Corals” par. 2). Through poorly administered commercial practices, carelessness and ignorance among the common people, and human aggravated natural processes coral reef destruction has become a serious issue afflicting the world’s biodiversity and it’s intricate biosphere mechanics (“Human Impact on the Great Barrier Reef” 1) (“What Are Coral Reefs?” 1).
Lotze, Heike K., Marta Coll, Anna M. Magera, Christine Ward-Paige, and Laura Airoldi. "Recovery of Marine Animal Populations and Ecosystems." Trends in Ecology & Evolution 26.11 (2011): 595-605. Print.
If the coral reefs were to become extinct, then future generations would not have the benefits that these animals have to offer, such as possible medicines, pest control, and carbon dioxide control. Fisheries are also contributed by corals and if they were eliminated would reduce the food source greatly. By not preserving corals, we are taking food directly out of our grandchildren's mouths. With the technology that is rapidly being discovered, we learn more and more about what we can do with bone structure and hard corals. Right now we are doing restructuring procedures and learning that bone tissue and blood vessels spread into the coral graft and eventually bone replaces most of the coral implant.