Preview

Chinook Salmon Survival Analysis

Satisfactory Essays
Open Document
Open Document
111 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Chinook Salmon Survival Analysis
In this study the author believes that the predator’s survival is linked to its prey, the Chinook salmon. The killer whales depend on this species of fish as the main food source, making it harder for the whales to adapt to a different source when needed. The salmon suddenly disappeared and the abundance of whales, and the pollutants they carried, led to a higher mortality rate. Because these whales only have one prey, the techniques they use to hunt are specific. It is important that these hunting techniques to remain constant for the marine ecosystem to have balanced populations. This article shows how both extremes can be harmful to the environment.

You May Also Find These Documents Helpful

  • Good Essays

    Was it right that the Michigan Department of Natural Resources cut Chinook Salmon stockings by almost 70% in Lake Michigan?…

    • 1031 Words
    • 5 Pages
    Good Essays
  • Satisfactory Essays

    In America there is a number of invasive species but the one I chose the Brown trout. The Brown trout is a european species of the salmonid fish family. The Brown Trout’s scientific name is Salmo trutta. It was introduced in the mid 1800’s to america. The reason why the Brown trout is an invasive is because the Brown trout competes with other native species of fish(and obviously wins) and in some cases end up breeding with them. This has conservationist worried about the genetic makeup of the native species.…

    • 208 Words
    • 1 Page
    Satisfactory Essays
  • Good Essays

    Since the 1970’s when the movie Jaws first showed up on big screens around the country, people have been afraid of beaches, in fear of shark attacks. Not only have they been apprehensive about swimming in the ocean, but some have such malicious feelings towards sharks (especially Atlantic White Sharks due to their role in the movie) that they have taken to hunting and killing this already dwindling species. (Earth Island Institute) It is no secret that pollution and overfishing, as well as numerous other factors have caused the biodiversity of marine life to drastically decrease. It is also known that the ocean ecosystem relies much on all members of the food chain- particularly top predators like sharks. Larger sharks,…

    • 1502 Words
    • 7 Pages
    Good Essays
  • Satisfactory Essays

    Marine Science - 08.07

    • 365 Words
    • 2 Pages

    If killer whales don’t have anything to eat, then they will resort to eating sea otters and the population will diminish.…

    • 365 Words
    • 2 Pages
    Satisfactory Essays
  • Satisfactory Essays

    Bryn Celli Ddu

    • 304 Words
    • 2 Pages

    Climate change (an abiotic factor) has slowly decreased habitat for the arctic seals. Predict how a reduction in habitat could change the capture efficiency of the killer whales. How would this affect the carrying capacities for both the whales and the seals?…

    • 304 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    Anglerfish Research Paper

    • 706 Words
    • 3 Pages

    No doubt about it, pollution has been an environmental threat for a long time to our magnificent ocean and everyone knows that. In the text, “In addition to debris, the oceans are polluted by oil, sewage, and toxic chemicals,”(Dignan 14). This really proves that pollution is a part of environmental threats because oil, sewage, and toxic chemicals keep on either being purposely or accidentally dumped into the ocean which kills fish and habitats they live in. Vengeance did not come with this, but in other hands, overfishing has also been a problem in the environmental threat category. As the author stated, “...have shrunken-some drastically-as a result of overfishing or catching fish faster than they can reproduce,”(Dignan 14). This shows that overfishing is a problem because each time people overfish, down in the ocean fish can’t reproduce fast enough so less fish than before are left and other fish don’t have food then. Of course, global warming or climate change has been a huge environmental threat for a long time. Beyond that, as mentioned by NationalGeographic.com, “Global warming may lead to devastating droughts.” This illustrates that global warming also is a problem to the ocean because like National Geographic said, droughts cause less fish to appear and the ocean gets overflowed with air from humidity so it can’t get air…

    • 706 Words
    • 3 Pages
    Good Essays
  • Powerful Essays

    For thousands of years, salmon have played an integral role of the ecosystem in the Pacific Northwest region of the United States. In the 1700s, the settling of human's in the region had a tremendous impact on the native fisheries. Since that time, salmon have been affected by a growing population and economy in the Pacific Northwest. At that time, Europeans had begun to occupy land along the Columbia River, imposing their culture on the natives of that land. By the 1800's, disease brought by the European's had cleared nearly all of the population, however, the Columbia River's resources were being exploited to a great degree by the new settlers.…

    • 1666 Words
    • 7 Pages
    Powerful Essays
  • Good Essays

    Terry Tempest William’s written essay, “A Shark in the Mind of One Contemplating Wilderness,” delivers to us, with intended purpose using shocking truths of greed and destruction. Actions took under the cloak and disguise of the needs of civilization, creating more jobs, or even to boost the rich man’s governmental legacy of our badly raped and abused national economy. How continued acts of greed and wanton disregard for the environment, are endangering nature the wilderness areas we have sought to protect? Acts that leave behind damage and destruction where once nature and wilderness thrived. A land no longer able to maintain and support the natural balance of the animal populations as it once did.…

    • 2088 Words
    • 9 Pages
    Good Essays
  • Good Essays

    Chinook Salmon Essay

    • 535 Words
    • 3 Pages

    The Chinook Native Americans gathered food and made their weapons all while utilizing every part of the animal or material at hand. Likewise, the Chinook showed a respect to the land that is rarely shown today. Incredibly, these people thrived with only stone tools and natural materials fashioned to fit their needs.…

    • 535 Words
    • 3 Pages
    Good Essays
  • Better Essays

    Salmon Without Rivers

    • 1998 Words
    • 8 Pages

    The story of the Pacific salmon is a tragic one. Humans have consistently created conditions that threaten the livelihood of the salmon. Yet the salmon continue to fight despite the assault that has taken place on their habitat for over 150 years. In Salmon Without Rivers, Jim Lichatowich (1999) explores this assault as well as discusses man’s attempt to restore salmon to the Pacific Northwest. His detailed analysis of the history of the Pacific salmon sheds light on the plight of the salmon and the response by man to the salmon crisis in the Pacific.…

    • 1998 Words
    • 8 Pages
    Better Essays
  • Good Essays

    I bought two pounds of Alaskan King Salmon today. To me, the most exciting thing about cooking salmon has to be making sure in getting the skin nice and crispy. Score, salt, pepper, cajun spice, oil….skin side down, a touch of butter. And that!...keeps the salmon so moist! One of my most favorite things to cook is a great succotash with fish. Just mindblowing! Start by caramelizing onions in the pan, add corn, red peppers, yellow peppers, green peppers, zucchinis, and squash. The salmon is resting.…

    • 568 Words
    • 3 Pages
    Good Essays
  • Powerful Essays

    Saving Tuxedos Killer whales do not belong in captivity because they are intelligent mammals created to live a free life unchallenged in the sea. A killer whales gift in this world is not to entertain crowds from the confines of a pool, but rather to help sustain and control the flourishing life across vast oceans, and the land. They are found in all the world’s oceans, before captivity, they were described as “blood-thirsty killing machines” (Kirby, 2012, p. 3). The killer whale plays a major role in the bigger picture we call life. “Homebodies and roamers, herders and hunters--killer whales divide up into distinct societies, each with customs and a history of its own” (Martin, 1993).…

    • 1378 Words
    • 6 Pages
    Powerful Essays
  • Good Essays

    Pacific Salmon Essay

    • 516 Words
    • 3 Pages

    There are 7 different species of salmon that can be found in the Pacific Ocean, each species has a unique appearance and has different habitats but they share many characteristics. Salmon are also a very unique species, they are anadromous, meaning that their eggs are laid and hatch in freshwater, and their youth spend some of their early lives there in freshwater before swimming to the ocean to grow and mature. Pacific salmon spawn only once and dies within days of digging their nest and mating. Their bodies will float down the stream and decompose, filling the water will nutrients for other species and plants as food. Both live and dead salmons plays an important food source for birds, such as eagles and gulls and mammals, such as bears.…

    • 516 Words
    • 3 Pages
    Good Essays
  • Powerful Essays

    Analysis on Blackfish

    • 1101 Words
    • 4 Pages

    Description: In 2010, a trainer who worked for Sea World, Dawn Brancheau was killed by one of the show whales in Sea World [Tilikum] which set off this controversy and the realization that Orcas should not be kept in captivity (Zurko, 2014). In the documentary “Blackfish” that was released in July of 2013, it expresses that when Orcas are held in detention and bred within such confinement they grow unhappy and aggressive. Orcas are used to living in open waters and that’s where they are happiest, being so detained makes them unhappy to the point where they get aggressive towards those trainers who they know have a part in keeping them imprisoned. They lash out towards the trainers, not because they are dangerous creatures, because they are desperate for a normal healthy life back in the open waters. Because Tili attacked Brancheau, it lead to the beliefs that the title of killer whales was a literal title, when in reality their anger is due to the face they are in captive in the park. Animals are adapted to the environment they were intended, Orcas are used to living free in open waters being able to communicate with other animals in the ocean (Sanchez, 2014). The captivity of the orcas has shortened their lifespan because they are unable to live the way that they should.…

    • 1101 Words
    • 4 Pages
    Powerful Essays
  • Good Essays

    John Dutton’s essay “Toxic Soup” (2006) speculates about the effects that humans have on pollution in the ocean, as well as ways the damage can be reduced. In this essay, Dutton incorporates his personal experiences as a surfer and nature lover with statistics and his knowledge of the effects of water pollution on animals and humans. Dutton’s purpose is to raise public awareness of the need for environmental protection of the ocean in order to preserve and improve nature’s status. Given the language and references used, Dutton is writing for college educated adults interested in science and the environment.…

    • 1038 Words
    • 5 Pages
    Good Essays